Merge pull request #7349 from mpg/rm-hash-info

Remove `hash_info` module
diff --git a/ChangeLog.d/oid-parse-from-numeric-string.txt b/ChangeLog.d/oid-parse-from-numeric-string.txt
new file mode 100644
index 0000000..82ed2fd
--- /dev/null
+++ b/ChangeLog.d/oid-parse-from-numeric-string.txt
@@ -0,0 +1,3 @@
+Features
+   * Add function mbedtls_oid_from_numeric_string() to parse an OID from a
+     string to a DER-encoded mbedtls_asn1_buf.
diff --git a/docs/proposed/psa-driver-interface.md b/docs/proposed/psa-driver-interface.md
index a3e3c76..41f90c9 100644
--- a/docs/proposed/psa-driver-interface.md
+++ b/docs/proposed/psa-driver-interface.md
@@ -301,25 +301,289 @@
 
 TODO
 
-#### Operation family `"key_derivation"`
+### Driver entry points for key derivation
 
-This family requires the following type and entry points:
+Key derivation is more complex than other multipart operations for several reasons:
 
-* Type `"key_derivation_operation_t"`: the type of a key derivation operation context.
-* `"key_derivation_setup"`: called by `psa_key_derivation_setup()`.
-* `"key_derivation_set_capacity"`: called by `psa_key_derivation_set_capacity()`. The core will always enforce the capacity, therefore this function does not need to do anything for algorithms where the output stream only depends on the effective generated length and not on the capacity.
-* `"key_derivation_input_bytes"`: called by `psa_key_derivation_input_bytes()` and `psa_key_derivation_input_key()`. For transparent drivers, when processing a call to `psa_key_derivation_input_key()`, the core always calls the applicable driver's `"key_derivation_input_bytes"` entry point.
-* `"key_derivation_input_integer"`: called by `psa_key_derivation_input_integer()`.
-* `"key_derivation_input_key"` (opaque drivers only)
-* `"key_derivation_output_bytes"`: called by `psa_key_derivation_output_bytes()`; also by `psa_key_derivation_output_key()` for transparent drivers.
-* `"key_derivation_output_key"`: called by `psa_key_derivation_output_key()` for transparent drivers when deriving an asymmetric key pair, and also for opaque drivers.
-* `"key_derivation_verify_bytes"` (opaque drivers only).
-* `"key_derivation_verify_key"` (opaque drivers only).
-* `"key_derivation_abort"`: called by all key derivation functions of the PSA Cryptography API.
+* There are multiple inputs and outputs.
+* Multiple drivers can be involved. This happens when an operation combines a key agreement and a subsequent symmetric key derivation, each of which can have independent drivers. This also happens when deriving an asymmetric key, where processing the secret input and generating the key output might involve different drivers.
+* When multiple drivers are involved, they are not always independent: if the secret input is managed by an opaque driver, it might not allow the core to retrieve the intermediate output and pass it to another driver.
+* The involvement of an opaque driver cannot be determined as soon as the operation is set up (since `psa_key_derivation_setup()` does not determine the key input).
 
-TODO: key input and output for opaque drivers; deterministic key generation for transparent drivers
+#### Key derivation driver dispatch logic
 
-TODO
+The core decides whether to dispatch a key derivation operation to a driver based on the location associated with the input step `PSA_KEY_DERIVATION_INPUT_SECRET`.
+
+1. If this step is passed via `psa_key_derivation_input_key()` for a key in a secure element:
+    * If the driver for this secure element implements the `"key_derivation"` family for the specified algorithm, the core calls that driver's `"key_derivation_setup"` and subsequent entry points.
+      Note that for all currently specified algorithms, the key type for the secret input does not matter.
+    * Otherwise the core calls the secure element driver's [`"export_key"`](#key-management-with-opaque-drivers) entry point.
+2. Otherwise ([or on fallback?](#fallback-for-key-derivation-in-opaque-drivers)), if there is a transparent driver for the specified algorithm, the core calls that driver's `"key_derivation_setup"` and subsequent entry points.
+3. Otherwise, or on fallback, the core uses its built-in implementation.
+
+#### Summary of entry points for the operation family `"key_derivation"`
+
+A key derivation driver has the following entry points:
+
+* `"key_derivation_setup"` (mandatory): always the first entry point to be called. This entry point provides the [initial inputs](#key-derivation-driver-initial-inputs). See [“Key derivation driver setup”](#key-derivation-driver-setup).
+* `"key_derivation_input_step"` (mandatory if the driver supports a key derivation algorithm with long inputs, otherwise ignored): provide an extra input for the key derivation. This entry point is only mandatory in drivers that support algorithms that have extra inputs. See [“Key derivation driver long inputs”](#key-derivation-driver-long-inputs).
+* `"key_derivation_output_bytes"` (mandatory): derive cryptographic material and output it. See [“Key derivation driver outputs”](#key-derivation-driver-outputs).
+* `"key_derivation_output_key"`, `"key_derivation_verify_bytes"`, `"key_derivation_verify_key"` (optional, opaque drivers only): derive key material which remains inside the same secure element. See [“Key derivation driver outputs”](#key-derivation-driver-outputs).
+* `"key_derivation_set_capacity"` (mandatory for opaque drivers that implement `"key_derivation_output_key"` for “cooked”, i.e. non-raw-data key types; ignored for other opaque drivers; not permitted for transparent drivers): update the capacity policy on the operation. See [“Key derivation driver operation capacity”](#key-derivation-driver-operation-capacity).
+* `"key_derivation_abort"` (mandatory): always the last entry point to be called.
+
+For naming purposes, here and in the following subsection, this specification takes the example of a driver with the prefix `"acme"` that implements the `"key_derivation"` entry point family with a capability that does not use the `"names"` property to declare different type and entry point names. Such a driver must implement the following type and functions, as well as the entry points listed above and described in the following subsections:
+```
+typedef ... acme_key_derivation_operation_t;
+psa_status_t acme_key_derivation_abort(acme_key_derivation_operation_t *operation);
+```
+
+#### Key derivation driver initial inputs
+
+The core conveys the initial inputs for a key derivation via an opaque data structure of type `psa_crypto_driver_key_derivation_inputs_t`.
+
+```
+typedef ... psa_crypto_driver_key_derivation_inputs_t; // implementation-specific type
+```
+
+A driver receiving an argument that points to a `psa_crypto_driver_key_derivation_inputs_t` can retrieve its contents by calling one of the type-specific functions below. To determine the correct function, the driver can call `psa_crypto_driver_key_derivation_get_input_type()`.
+
+```
+enum psa_crypto_driver_key_derivation_input_type_t {
+    PSA_KEY_DERIVATION_INPUT_TYPE_INVALID = 0,
+    PSA_KEY_DERIVATION_INPUT_TYPE_OMITTED,
+    PSA_KEY_DERIVATION_INPUT_TYPE_BYTES,
+    PSA_KEY_DERIVATION_INPUT_TYPE_KEY,
+    PSA_KEY_DERIVATION_INPUT_TYPE_INTEGER,
+    // Implementations may add other values, and may freely choose the
+    // numerical values for each identifer except as explicitly specified
+    // above.
+};
+psa_crypto_driver_key_derivation_input_type_t psa_crypto_driver_key_derivation_get_input_type(
+    const psa_crypto_driver_key_derivation_inputs_t *inputs,
+    psa_key_derivation_step_t step);
+```
+
+The function `psa_crypto_driver_key_derivation_get_input_type()` determines whether a given step is present and how to access its value:
+
+* `PSA_KEY_DERIVATION_INPUT_TYPE_INVALID`: the step is invalid for the algorithm of the operation that the inputs are for.
+* `PSA_KEY_DERIVATION_INPUT_TYPE_OMITTED`: the step is optional for the algorithm of the operation that the inputs are for, and has been omitted.
+* `PSA_KEY_DERIVATION_INPUT_TYPE_BYTES`: the step is valid and present and is a transparent byte string. Call `psa_crypto_driver_key_derivation_get_input_size()` to obtain the size of the input data. Call `psa_crypto_driver_key_derivation_get_input_bytes()` to make a copy of the input data (design note: [why a copy?](#key-derivation-inputs-and-buffer-ownership)).
+* `PSA_KEY_DERIVATION_INPUT_TYPE_KEY`: the step is valid and present and is a byte string passed via a key object. Call `psa_crypto_driver_key_derivation_get_input_key()` to obtain a pointer to the key context.
+* `PSA_KEY_DERIVATION_INPUT_TYPE_INTEGER`: the step is valid and present and is an integer. Call `psa_crypto_driver_key_derivation_get_input_integer()` to retrieve the integer value.
+
+```
+psa_status_t psa_crypto_driver_key_derivation_get_input_size(
+    const psa_crypto_driver_key_derivation_inputs_t *inputs,
+    psa_key_derivation_step_t step,
+    size_t *size);
+psa_status_t psa_crypto_driver_key_derivation_get_input_bytes(
+    const psa_crypto_driver_key_derivation_inputs_t *inputs,
+    psa_key_derivation_step_t step,
+    uint8_t *buffer, size_t buffer_size, size_t *buffer_length);
+psa_status_t psa_crypto_driver_key_derivation_get_input_key(
+    const psa_crypto_driver_key_derivation_inputs_t *inputs,
+    psa_key_derivation_step_t step,
+    const psa_key_attributes_t *attributes,
+    uint8_t** p_key_buffer, size_t *key_buffer_size);
+psa_status_t psa_crypto_driver_key_derivation_get_input_integer(
+    const psa_crypto_driver_key_derivation_inputs_t *inputs,
+    psa_key_derivation_step_t step,
+    uint64_t *value);
+```
+
+The get-data functions take the following parameters:
+
+* The first parameter `inputs` must be a pointer passed by the core to a key derivation driver setup entry point which has not returned yet.
+* The `step` parameter indicates the input step whose content the driver wants to retrieve.
+* On a successful invocation of `psa_crypto_driver_key_derivation_get_input_size`, the core sets `*size` to the size of the specified input in bytes.
+* On a successful invocation of `psa_crypto_driver_key_derivation_get_input_bytes`, the core fills the first *N* bytes of `buffer` with the specified input and sets `*buffer_length` to *N*, where *N* is the length of the input in bytes. The value of `buffer_size` must be at least *N*, otherwise this function fails with the status `PSA_ERROR_BUFFER_TOO_SMALL`.
+* On a successful invocation of `psa_crypto_driver_key_derivation_get_input_key`, the core sets `*key_buffer` to a pointer to a buffer containing the key context and `*key_buffer_size` to the size of the key context in bytes. The key context buffer remains valid for the duration of the driver entry point. If the driver needs to access the key context after the current entry point returns, it must make a copy of the key context.
+* On a successful invocation of `psa_crypto_driver_key_derivation_get_input_integer`, the core sets `*value` to the value of the specified input.
+
+These functions can return the following statuses:
+
+* `PSA_SUCCESS`: the call succeeded and the requested value has been copied to the output parameter (`size`, `buffer`, `value` or `p_key_buffer`) and if applicable the size of the value has been written to the applicable parameter (`buffer_length`, `key_buffer_size`).
+* `PSA_ERROR_DOES_NOT_EXIST`: the input step is valid for this particular algorithm, but it is not part of the initial inputs. This is not a fatal error. The driver will receive the input later as a [long input](#key-derivation-driver-long-inputs).
+* `PSA_ERROR_INVALID_ARGUMENT`: the input type is not compatible with this function or was omitted. Call `psa_crypto_driver_key_derivation_get_input_type()` to find out the actual type of this input step. This is not a fatal error and the driver can, for example, subsequently call the appropriate function on the same step.
+* `PSA_ERROR_BUFFER_TOO_SMALL` (`psa_crypto_driver_key_derivation_get_input_bytes` only): the output buffer is too small. This is not a fatal error and the driver can, for example, subsequently call the same function again with a larger buffer. Call `psa_crypto_driver_key_derivation_get_input_size` to obtain the required size.
+* The core may return other errors such as `PSA_ERROR_CORRUPTION_DETECTED` or `PSA_ERROR_COMMUNICATION_FAILURE` to convey implementation-specific error conditions. Portable drivers should treat such conditions as fatal errors.
+
+#### Key derivation driver setup
+
+A key derivation driver must implement the following entry point:
+```
+psa_status_t acme_key_derivation_setup(
+    acme_key_derivation_operation_t *operation,
+    psa_algorithm_t alg,
+    const psa_crypto_driver_key_derivation_inputs_t *inputs);
+```
+
+* `operation` is a zero-initialized operation object.
+* `alg` is the algorithm for the key derivation operation. It does not include a key agreement component.
+* `inputs` is an opaque pointer to the [initial inputs](#key-derivation-driver-initial-inputs) for the key derivation.
+
+#### Key derivation driver long inputs
+
+Some key derivation algorithms take long inputs which it would not be practical to pass in the [initial inputs](#key-derivation-driver-initial-inputs). A driver that implements a key derivation algorithm that takes such inputs must provide a `"key_derivation_input_step"` entry point. The core calls this entry point for all the long inputs after calling `"acme_key_derivation_setup"`. A long input step may be fragmented into multiple calls of `psa_key_derivation_input_bytes()`, and the core may reassemble or refragment those fragments before passing them to the driver. Calls to this entry point for different step values occur in an unspecified order and may be interspersed.
+
+```
+psa_status_t acme_key_derivation_input_step(
+    acme_key_derivation_operation_t *operation,
+    psa_key_derivation_step_t step,
+    const uint8_t *input, size_t input_length);
+```
+
+At the time of writing, no standard key derivation algorithm has long inputs. It is likely that such algorithms will be added in the future.
+
+#### Key derivation driver operation capacity
+
+The core keeps track of an operation's capacity and enforces it. The core guarantees that it will not request output beyond the capacity of the operation, with one exception: opaque drivers that support [`"key_derivation_output_key"`](#key-derivation-driver-outputs), i.e. for key types where the derived key material is not a direct copy of the key derivation's output stream.
+
+Such drivers must enforce the capacity limitation and must return `PSA_ERROR_INSUFFICIENT_CAPACITY` from any output request that exceeds the operation's capacity. Such drivers must provide the following entry point:
+```
+psa_status_t acme_key_derivation_set_capacity(
+    acme_key_derivation_operation_t *operation,
+    size_t capacity);
+```
+`capacity` is guaranteed to be less or equal to any value previously set through this entry point, and is guaranteed not to be `PSA_KEY_DERIVATION_UNLIMITED_CAPACITY`.
+
+If this entry point has not been called, the operation has an unlimited capacity.
+
+#### Key derivation driver outputs
+
+A key derivation driver must provide the following entry point:
+```
+psa_status_t acme_key_derivation_output_bytes(
+    acme_key_derivation_operation_t *operation,
+    uint8_t *output, size_t length);
+```
+
+An opaque key derivation driver may provide the following entry points:
+```
+psa_status_t acme_key_derivation_output_key(
+    const psa_key_attributes_t *attributes,
+    acme_key_derivation_operation_t *operation,
+    uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length);
+psa_status_t acme_key_derivation_verify_bytes(
+    acme_key_derivation_operation_t *operation,
+    const uint8_t *expected output, size_t length);
+psa_status_t acme_key_derivation_verify_key(
+    acme_key_derivation_operation_t *operation,
+    uint8_t *key_buffer, size_t key_buffer_size);
+```
+
+The core calls a key derivation driver's output entry point when the application calls `psa_key_derivation_output_bytes()`, `psa_key_derivation_output_key()`, `psa_key_derivation_verify_bytes()` or `psa_key_derivation_verify_key()`.
+
+If the key derivation's `PSA_KEY_DERIVATION_INPUT_SECRET` input is in a secure element and the derivation operation is handled by that secure element, the core performs the following steps:
+
+* For a call to `psa_key_derivation_output_key()`:
+
+    1. If the derived key is in the same secure element, if the driver has an `"key_derivation_output_key"` entry point, call that entry point. If the driver has no such entry point, or if that entry point returns `PSA_ERROR_NOT_SUPPORTED`, continue with the following steps, otherwise stop.
+    1. If the driver's capabilities indicate that its `"import_key"` entry point does not support the derived key, stop and return `PSA_ERROR_NOT_SUPPORTED`.
+    1. Otherwise proceed as for `psa_key_derivation_output_bytes()`, then import the resulting key material.
+
+* For a call to `psa_key_derivation_verify_key()`:
+    1. If the driver has a `"key_derivation_verify_key"` entry point, call it and stop.
+    1. Call the driver's `"export_key"` entry point on the key object that contains the expected value, then proceed as for `psa_key_derivation_verify_bytes()`.
+
+* For a call to `psa_key_derivation_verify_bytes()`:
+    1. If the driver has a `"key_derivation_verify_bytes"` entry point, call that entry point on the expected output, then stop.
+    1. Otherwise, proceed as for `psa_key_derivation_output_bytes()`, and compare the resulting output to the expected output inside the core.
+
+* For a call to `psa_key_derivation_output_bytes()`:
+    1. Call the `"key_derivation_output_bytes"` entry point. The core may call this entry point multiple times to implement a single call from the application when deriving a cooked (non-raw) key as described below, or if the output size exceeds some implementation limit.
+
+If the key derivation operation is not handled by an opaque driver as described above, the core calls the `"key_derivation_output_bytes"` from the applicable transparent driver (or multiple drivers in succession if fallback applies). In some cases, the core then calls additional entry points in the same or another driver:
+
+* For a call to `psa_key_derivation_output_key()` for some key types, the core calls a transparent driver's `"derive_key"` entry point. See [“Transparent cooked key derivation”](#transparent-cooked-key-derivation).
+* For a call to `psa_key_derivation_output_key()` where the derived key is in a secure element, call that secure element driver's `"import_key"` entry point.
+
+#### Transparent cooked key derivation
+
+Key derivation is said to be *raw* for some key types, where the key material of a derived (8×*n*)-bit key consists of the next *n* bytes of output from the key derivation, and *cooked* otherwise. When deriving a raw key, the core only calls the driver's `"output_bytes"` entry point, except when deriving a key entirely inside a secure element as described in [“Key derivation driver outputs”](#key-derivation-driver-outputs). When deriving a cooked key, the core calls a transparent driver's `"derive_key"` entry point if available.
+
+A capability for cooked key derivation contains the following properties (this is not a subset of [the usual entry point properties](#capability-syntax)):
+
+* `"entry_points"` (mandatory, list of strings). Must be `["derive_key"]`.
+* `"derived_types"` (mandatory, list of strings). Each element is a [key type specification](#key-type-specifications). This capability only applies when deriving a key of the specified type.
+* `"derived_sizes"` (optional, list of integers). Each element is a size for the derived key, in bits. This capability only applies when deriving a key of the specified sizes. If absent, this capability applies to all sizes for the specified types.
+* `"memory"` (optional, boolean). If present and true, the driver must define a type `"derive_key_memory_t"` and the core will allocate an object of that type as specified below.
+* `"names"` (optional, object). A mapping from entry point names to C function and type names, as usual.
+* `"fallback"` (optional, boolean). If present and true, the driver may return `PSA_ERROR_NOT_SUPPORTED` if it only partially supports the specified mechanism, as usual.
+
+A transparent driver with the prefix `"acme"` that implements cooked key derivation must provide the following type and function:
+
+```
+typedef ... acme_derive_key_memory_t; // only if the "memory" property is true
+psa_status_t acme_derive_key(
+    const psa_key_attributes_t *attributes,
+    const uint8_t *input, size_t input_length,
+    acme_derive_key_memory_t *memory, // if the "memory" property is false: void*
+    uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length);
+```
+
+* `attributes` contains the attributes of the specified key. Note that only the key type and the bit-size are guaranteed to be set.
+* `input` is a buffer of `input_length` bytes which contains the raw key stream, i.e. the data that `psa_key_derivation_output_bytes()` would return.
+* If `"memory"` property in the driver capability is true, `memory` is a data structure that the driver may use to store data between successive calls of the `"derive_key"` entry point to derive the same key. If the `"memory"` property is false or absent, the `memory` parameter is a null pointer.
+* `key_buffer` is a buffer for the output material, in the appropriate [export format](#key-format-for-transparent-drivers) for the key type. Its size is `key_buffer_size` bytes.
+* On success, `*key_buffer_length` must contain the number of bytes written to `key_buffer`.
+
+This entry point may return the following statuses:
+
+* `PSA_SUCCESS`: a key was derived successfully. The driver has placed the representation of the key in `key_buffer`.
+* `PSA_ERROR_NOT_SUPPORTED` (for the first call only) (only if fallback is enabled): the driver cannot fulfill this request, but a fallback driver might.
+* `PSA_ERROR_INSUFFICIENT_DATA`: the core must call the `"derive_key"` entry point again with the same `memory` object and with subsequent data from the key stream.
+* Any other error is a fatal error.
+
+The core calls the `"derive_key"` entry point in a loop until it returns a status other than `PSA_ERROR_INSUFFICIENT_DATA`. Each call has a successive fragment of the key stream. The `memory` object is guaranteed to be the same for successive calls, but note that its address may change between calls. Before the first call, `*memory` is initialized to all-bits-zero.
+
+For standard key types, the `"derive_key"` entry point is called with a certain input length as follows:
+
+* `PSA_KEY_TYPE_DES`: the length of the key.
+* `PSA_KEY_TYPE_ECC_KEY_PAIR(…)`, `PSA_KEY_TYPE_DH_KEY_PAIR(…)`: $m$ bytes, where the bit-size of the key $n$ satisfies $8 (m-1) < n \le 8 m$.
+* `PSA_KEY_TYPE_RSA_KEY_PAIR`: an implementation-defined length. A future version of this specification may specify a length.
+* Other key types: not applicable.
+
+See [“Open questions around cooked key derivation”](#open-questions-around-cooked-key-derivation) for some points that may not be fully settled.
+
+#### Key agreement
+
+The core always decouples key agreement from symmetric key derivation.
+
+To implement a call to `psa_key_derivation_key_agreement()` where the private key is in a secure element that has a `"key_agreement_to_key"` entry point which is applicable for the given key type and algorithm, the core calls the secure element driver as follows:
+
+1. Call the `"key_agreement_to_key"` entry point to create a key object containing the shared secret. The key object is volatile and has the type `PSA_KEY_TYPE_DERIVE`.
+2. Call the `"key_derivation_setup"` entry point, passing the resulting key object .
+3. Perform the rest of the key derivation, up to and including the call to the `"key_derivation_abort"` entry point.
+4. Call the `"destroy_key"` entry point to destroy the key containing the key object.
+
+In other cases, the core treats `psa_key_derivation_key_agreement()` as if it was a call to `psa_raw_key_agreement()` followed by a call to `psa_key_derivation_input_bytes()` on the shared secret.
+
+The entry points related to key agreement have the following prototypes for a driver with the prefix `"acme"`:
+```
+psa_status_t acme_key_agreement(psa_algorithm_t alg,
+                                const psa_key_attributes_t *our_attributes,
+                                const uint8_t *our_key_buffer,
+                                size_t our_key_buffer_length,
+                                const uint8_t *peer_key,
+                                size_t peer_key_length,
+                                uint8_t *output,
+                                size_t output_size,
+                                size_t *output_length);
+psa_status_t acme_key_agreement_to_key(psa_algorithm_t alg,
+                                       const psa_key_attributes_t *our_attributes,
+                                       const uint8_t *our_key_buffer,
+                                       size_t our_key_buffer_length,
+                                       const uint8_t *peer_key,
+                                       size_t peer_key_length,
+                                       const psa_key_attributes_t *shared_secret_attributes,
+                                       uint8_t *shared_secret_key_buffer,
+                                       size_t shared_secret_key_buffer_size,
+                                       size_t *shared_secret_key_buffer_length);
+```
+
+Note that unlike most other key creation entry points, in `"acme_key_agreement_to_key"`, the attributes for the shared secret are not placed near the beginning, but rather grouped with the other parameters related to the shared secret at the end of the parameter list. This is to avoid potential confusion with the attributes of the private key that is passed as an input.
 
 ### Driver entry points for PAKE
 
@@ -506,8 +770,9 @@
                                size_t key_buffer_size,
                                size_t *key_buffer_length);
 ```
+Additionally, opaque drivers can create keys through their [`"key_derivation_output_key"`](#key-derivation-driver-outputs) and [`"key_agreement_key"`](#key-agreement) entry points. Transparent drivers can create key material through their [`"derive_key"`](#transparent-cooked-key-derivation) entry point.
 
-TODO: derivation, copy
+TODO: copy
 
 * The key attributes (`attributes`) have the same semantics as in the PSA Cryptography application interface.
 * For the `"import_key"` entry point, the input in the `data` buffer is either the export format or an implementation-specific format that the core documents as an acceptable input format for `psa_import_key()`.
@@ -640,7 +905,7 @@
 This entry point has several roles:
 
 1. Parse the key data in the input buffer `data`. The driver must support the export format for the key types that the entry point is declared for. It may support additional formats as specified in the description of [`psa_import_key()`](https://armmbed.github.io/mbed-crypto/html/api/keys/management.html#c.psa_export_key) in the PSA Cryptography API specification.
-2. Validate the key data. The necessary validation is described in the section [“Key validation with transparent drivers”](#key-validation-with-transparent-drivers) above.
+2. Validate the key data. The necessary validation is described in the section [“Key validation”](#key-validation) above.
 3. [Determine the key size](#key-size-determination-on-import) and output it through `*bits`.
 4. Copy the validated key data from `data` to `key_buffer`. The output must be in the canonical format documented for [`psa_export_key()`](https://armmbed.github.io/mbed-crypto/html/api/keys/management.html#c.psa_export_key) or [`psa_export_public_key()`](https://armmbed.github.io/mbed-crypto/html/api/keys/management.html#c.psa_export_public_key), so if the input is not in this format, the entry point must convert it.
 
@@ -830,7 +1095,7 @@
 
 Opaque drivers may provide the following key management entry points:
 
-* `"export_key"`: called by `psa_export_key()`, or by `psa_copy_key()` when copying a key from or to a different [location](#lifetimes-and-locations).
+* `"export_key"`: called by `psa_export_key()`, or by `psa_copy_key()` when copying a key from or to a different [location](#lifetimes-and-locations), or [as a fallback for key derivation](#key-derivation-driver-dispatch-logic).
 * `"export_public_key"`: called by the core to obtain the public key of a key pair. The core may call this entry point at any time to obtain the public key, which can be for `psa_export_public_key()` but also at other times, including during a cryptographic operation that requires the public key such as a call to `psa_verify_message()` on a key pair object.
 * `"import_key"`: called by `psa_import_key()`, or by `psa_copy_key()` when copying a key from another location.
 * `"generate_key"`: called by `psa_generate_key()`.
@@ -1101,6 +1366,12 @@
 
 Should the core guarantee that the output buffer size has the size indicated by the applicable buffer size macro (which may be an overestimation)?
 
+#### Key derivation inputs and buffer ownership
+
+Why is `psa_crypto_driver_key_derivation_get_input_bytes` a copy, rather than giving a pointer?
+
+The main reason is to avoid complex buffer ownership. A driver entry point does not own memory after the entry point return. This is generally necessary because an API function does not own memory after the entry point returns. In the case of key derivation inputs, this could be relaxed because the driver entry point is making callbacks to the core: these functions could return a pointer that is valid until the driver entry point returns, which would allow the driver to process the data immediately (e.g. hash it rather than copy it).
+
 ### Partial computations in drivers
 
 #### Substitution points
@@ -1144,6 +1415,18 @@
 
 `psa_crypto_driver_get_persistent_state` does not identify the calling driver, so the driver needs to remember which driver it's calling. This may require a thread-local variable in a multithreaded core. Is this ok?
 
+#### Open questions around cooked key derivation
+
+`"derive_key"` is not a clear name. Can we use a better one?
+
+For the `"derive_key"` entry point, how does the core choose `input_length`? Doesn't the driver know better? Should there be a driver entry point to determine the length, or should there be a callback that allows the driver to retrieve the input? Note that for some key types, it's impossible to predict the amount of input in advance, because it depends on some complex calculation or even on random data, e.g. if doing a randomized pseudo-primality test. However, for all key types except RSA, the specification mandates how the key is derived, which practically dictates how the pseudorandom key stream is consumed. So it's probably ok.
+
+#### Fallback for key derivation in opaque drivers
+
+Should [dispatch to an opaque driver](#key-derivation-driver-dispatch-logic) allow fallback, so that if `"key_derivation_setup"` returns `PSA_ERROR_NOT_SUPPORTED` then the core exports the key from the secure element instead?
+
+Should the ["`key_derivation_output_key`"](#key-derivation-driver-outputs) capability indicate which key types the driver can derive? How should fallback work? For example, consider a secure element that implements HMAC, HKDF and ECDSA, and that can derive an HMAC key from HKDF without exporting intermediate material but can only import or randomly generate ECC keys. How does this driver convey that it can't derive an ECC key with HKDF, but it can let the core do this and import the resulting key?
+
 ### Randomness
 
 #### Input to `"add_entropy"`
diff --git a/include/mbedtls/oid.h b/include/mbedtls/oid.h
index 1cbf968..ec36748 100644
--- a/include/mbedtls/oid.h
+++ b/include/mbedtls/oid.h
@@ -64,6 +64,11 @@
 #define MBEDTLS_OID_X509_EXT_NS_CERT_TYPE                (1 << 16)
 
 /*
+ * Maximum number of OID components allowed
+ */
+#define MBEDTLS_OID_MAX_COMPONENTS              128
+
+/*
  * Top level OID tuples
  */
 #define MBEDTLS_OID_ISO_MEMBER_BODIES           "\x2a"          /* {iso(1) member-body(2)} */
@@ -479,6 +484,25 @@
 int mbedtls_oid_get_numeric_string(char *buf, size_t size, const mbedtls_asn1_buf *oid);
 
 /**
+ * \brief           Translate a string containing a dotted-decimal
+ *                  representation of an ASN.1 OID into its encoded form
+ *                  (e.g. "1.2.840.113549" into "\x2A\x86\x48\x86\xF7\x0D").
+ *                  On success, this function allocates oid->buf from the
+ *                  heap. It must be freed by the caller using mbedtls_free().
+ *
+ * \param oid       #mbedtls_asn1_buf to populate with the DER-encoded OID
+ * \param oid_str   string representation of the OID to parse
+ * \param size      length of the OID string, not including any null terminator
+ *
+ * \return          0 if successful
+ * \return          #MBEDTLS_ERR_ASN1_INVALID_DATA if \p oid_str does not
+ *                  represent a valid OID
+ * \return          #MBEDTLS_ERR_ASN1_ALLOC_FAILED if the function fails to
+ *                  allocate oid->buf
+ */
+int mbedtls_oid_from_numeric_string(mbedtls_asn1_buf *oid, const char *oid_str, size_t size);
+
+/**
  * \brief          Translate an X.509 extension OID into local values
  *
  * \param oid      OID to use
diff --git a/library/oid.c b/library/oid.c
index f78ee85..a580992 100644
--- a/library/oid.c
+++ b/library/oid.c
@@ -933,4 +933,180 @@
     return (int) (size - n);
 }
 
+static int oid_parse_number(unsigned int *num, const char **p, const char *bound)
+{
+    int ret = MBEDTLS_ERR_ASN1_INVALID_DATA;
+
+    *num = 0;
+
+    while (*p < bound && **p >= '0' && **p <= '9') {
+        ret = 0;
+        if (*num > (UINT_MAX / 10)) {
+            return MBEDTLS_ERR_ASN1_INVALID_DATA;
+        }
+        *num *= 10;
+        *num += **p - '0';
+        (*p)++;
+    }
+    return ret;
+}
+
+static size_t oid_subidentifier_num_bytes(unsigned int value)
+{
+    size_t num_bytes = 0;
+
+    do {
+        value >>= 7;
+        num_bytes++;
+    } while (value != 0);
+
+    return num_bytes;
+}
+
+static int oid_subidentifier_encode_into(unsigned char **p,
+                                         unsigned char *bound,
+                                         unsigned int value)
+{
+    size_t num_bytes = oid_subidentifier_num_bytes(value);
+
+    if ((size_t) (bound - *p) < num_bytes) {
+        return MBEDTLS_ERR_OID_BUF_TOO_SMALL;
+    }
+    (*p)[num_bytes - 1] = (unsigned char) (value & 0x7f);
+    value >>= 7;
+
+    for (size_t i = 2; i <= num_bytes; i++) {
+        (*p)[num_bytes - i] = 0x80 | (unsigned char) (value & 0x7f);
+        value >>= 7;
+    }
+    *p += num_bytes;
+
+    return 0;
+}
+
+/* Return the OID for the given x.y.z.... style numeric string  */
+int mbedtls_oid_from_numeric_string(mbedtls_asn1_buf *oid,
+                                    const char *oid_str, size_t size)
+{
+    int ret = MBEDTLS_ERR_ASN1_INVALID_DATA;
+    const char *str_ptr = oid_str;
+    const char *str_bound = oid_str + size;
+    unsigned int val = 0;
+    unsigned int component1, component2;
+    size_t encoded_len;
+    unsigned char *resized_mem;
+
+    /* Count the number of dots to get a worst-case allocation size. */
+    size_t num_dots = 0;
+    for (size_t i = 0; i < size; i++) {
+        if (oid_str[i] == '.') {
+            num_dots++;
+        }
+    }
+    /* Allocate maximum possible required memory:
+     * There are (num_dots + 1) integer components, but the first 2 share the
+     * same subidentifier, so we only need num_dots subidentifiers maximum. */
+    if (num_dots == 0 || (num_dots > MBEDTLS_OID_MAX_COMPONENTS - 1)) {
+        return MBEDTLS_ERR_ASN1_INVALID_DATA;
+    }
+    /* Each byte can store 7 bits, calculate number of bytes for a
+     * subidentifier:
+     *
+     * bytes = ceil(subidentifer_size * 8 / 7)
+     */
+    size_t bytes_per_subidentifier = (((sizeof(unsigned int) * 8) - 1) / 7)
+                                     + 1;
+    size_t max_possible_bytes = num_dots * bytes_per_subidentifier;
+    oid->p = mbedtls_calloc(max_possible_bytes, 1);
+    if (oid->p == NULL) {
+        return MBEDTLS_ERR_ASN1_ALLOC_FAILED;
+    }
+    unsigned char *out_ptr = oid->p;
+    unsigned char *out_bound = oid->p + max_possible_bytes;
+
+    ret = oid_parse_number(&component1, &str_ptr, str_bound);
+    if (ret != 0) {
+        goto error;
+    }
+    if (component1 > 2) {
+        /* First component can't be > 2 */
+        ret = MBEDTLS_ERR_ASN1_INVALID_DATA;
+        goto error;
+    }
+    if (str_ptr >= str_bound || *str_ptr != '.') {
+        ret = MBEDTLS_ERR_ASN1_INVALID_DATA;
+        goto error;
+    }
+    str_ptr++;
+
+    ret = oid_parse_number(&component2, &str_ptr, str_bound);
+    if (ret != 0) {
+        goto error;
+    }
+    if ((component1 < 2) && (component2 > 39)) {
+        /* Root nodes 0 and 1 may have up to 40 children, numbered 0-39 */
+        ret = MBEDTLS_ERR_ASN1_INVALID_DATA;
+        goto error;
+    }
+    if (str_ptr < str_bound) {
+        if (*str_ptr == '.') {
+            str_ptr++;
+        } else {
+            ret = MBEDTLS_ERR_ASN1_INVALID_DATA;
+            goto error;
+        }
+    }
+
+    if (component2 > (UINT_MAX - (component1 * 40))) {
+        ret = MBEDTLS_ERR_ASN1_INVALID_DATA;
+        goto error;
+    }
+    ret = oid_subidentifier_encode_into(&out_ptr, out_bound,
+                                        (component1 * 40) + component2);
+    if (ret != 0) {
+        goto error;
+    }
+
+    while (str_ptr < str_bound) {
+        ret = oid_parse_number(&val, &str_ptr, str_bound);
+        if (ret != 0) {
+            goto error;
+        }
+        if (str_ptr < str_bound) {
+            if (*str_ptr == '.') {
+                str_ptr++;
+            } else {
+                ret = MBEDTLS_ERR_ASN1_INVALID_DATA;
+                goto error;
+            }
+        }
+
+        ret = oid_subidentifier_encode_into(&out_ptr, out_bound, val);
+        if (ret != 0) {
+            goto error;
+        }
+    }
+
+    encoded_len = out_ptr - oid->p;
+    resized_mem = mbedtls_calloc(encoded_len, 1);
+    if (resized_mem == NULL) {
+        ret = MBEDTLS_ERR_ASN1_ALLOC_FAILED;
+        goto error;
+    }
+    memcpy(resized_mem, oid->p, encoded_len);
+    mbedtls_free(oid->p);
+    oid->p = resized_mem;
+    oid->len = encoded_len;
+
+    oid->tag = MBEDTLS_ASN1_OID;
+
+    return 0;
+
+error:
+    mbedtls_free(oid->p);
+    oid->p = NULL;
+    oid->len = 0;
+    return ret;
+}
+
 #endif /* MBEDTLS_OID_C */
diff --git a/tests/data_files/Makefile b/tests/data_files/Makefile
index 070a8f7..ea8e0c9 100644
--- a/tests/data_files/Makefile
+++ b/tests/data_files/Makefile
@@ -171,7 +171,30 @@
 
 test-ca2.crt: $(test_ca_key_file_ec) test-ca2.req.sha256
 	$(MBEDTLS_CERT_WRITE) is_ca=1 serial=13926223505202072808 request_file=test-ca2.req.sha256 selfsign=1 issuer_name="C=NL,O=PolarSSL,CN=Polarssl Test EC CA" issuer_key=$(test_ca_key_file_ec) not_before=20190210144400 not_after=20290210144400 md=SHA256 version=3 output_file=$@
-all_final += test-ca.crt
+all_final += test-ca2.crt
+
+test-ca2-future.crt: $(test_ca_key_file_ec) test-ca2.req.sha256
+	$(MBEDTLS_CERT_WRITE) is_ca=1 serial=13926223505202072808 request_file=test-ca2.req.sha256 selfsign=1 \
+		issuer_name="C=NL,O=PolarSSL,CN=Polarssl Test EC CA" issuer_key=$(test_ca_key_file_ec) \
+		not_before=20290210144400 not_after=20390210144400 md=SHA256 version=3 output_file=$@
+all_intermediate += test-ca2-future.crt
+
+test_ca_ec_cat := # files that concatenate different crt
+test-ca2_cat-future-invalid.crt: test-ca2-future.crt server6.crt
+test_ca_ec_cat += test-ca2_cat-future-invalid.crt
+test-ca2_cat-future-present.crt: test-ca2-future.crt test-ca2.crt
+test_ca_ec_cat += test-ca2_cat-future-present.crt
+test-ca2_cat-present-future.crt: test-ca2.crt test-ca2-future.crt
+test_ca_ec_cat += test-ca2_cat-present-future.crt
+test-ca2_cat-present-past.crt: test-ca2.crt test-ca2-expired.crt
+test_ca_ec_cat += test-ca2_cat-present-past.crt
+test-ca2_cat-past-invalid.crt: test-ca2-expired.crt server6.crt
+test_ca_ec_cat += test-ca2_cat-past-invalid.crt
+test-ca2_cat-past-present.crt: test-ca2-expired.crt test-ca2.crt
+test_ca_ec_cat += test-ca2_cat-past-present.crt
+$(test_ca_ec_cat):
+	cat $^ > $@
+all_final += $(test_ca_ec_cat)
 
 test-ca-any_policy.crt: $(test_ca_key_file_rsa) test-ca.req.sha256
 	$(OPENSSL) req -x509 -config $(test_ca_config_file) -extensions v3_any_policy_ca -key $(test_ca_key_file_rsa) -passin "pass:$(test_ca_pwd_rsa)" -set_serial 0 -days 3653 -sha256 -in test-ca.req.sha256 -out $@
@@ -229,10 +252,37 @@
 
 test-int-ca.csr: test-int-ca.key $(test_ca_config_file)
 	$(OPENSSL) req -new -config $(test_ca_config_file) -key test-int-ca.key -subj "/C=NL/O=PolarSSL/CN=PolarSSL Test Intermediate CA" -out $@
-all_intermediate += test-int-ca.csr
+
+test-int-ca2.csr: test-int-ca2.key $(test_ca_config_file)
+	$(OPENSSL) req -new -config $(test_ca_config_file) -key test-int-ca2.key \
+		-subj "/C=NL/O=PolarSSL/CN=PolarSSL Test Intermediate EC CA" -out $@
+
+test-int-ca3.csr: test-int-ca3.key $(test_ca_config_file)
+	$(OPENSSL) req -new -config $(test_ca_config_file) -key test-int-ca3.key \
+		-subj "/C=UK/O=mbed TLS/CN=mbed TLS Test intermediate CA 3" -out $@
+
+all_intermediate += test-int-ca.csr test-int-ca2.csr test-int-ca3.csr
+
+test-int-ca.crt: $(test_ca_crt_file_ec) $(test_ca_key_file_ec) $(test_ca_config_file) test-int-ca.csr
+	$(OPENSSL) x509 -req -extfile $(test_ca_config_file) -extensions v3_ca \
+		-CA $(test_ca_crt_file_ec) -CAkey $(test_ca_key_file_ec) \
+		-set_serial 14 -days 3653 -sha256 -in test-int-ca.csr -out $@
+
+test-int-ca2.crt: $(test_ca_key_file_rsa) $(test_ca_crt) $(test_ca_config_file) test-int-ca2.csr
+	$(OPENSSL) x509 -req -extfile $(test_ca_config_file) -extensions v3_ca -CA $(test_ca_crt) \
+		-CAkey $(test_ca_key_file_rsa) -set_serial 15 -days 3653 -sha256 -in test-int-ca2.csr \
+		-passin "pass:$(test_ca_pwd_rsa)" -out $@
+
+# Note: This requests openssl version >= 3.x.xx
+test-int-ca3.crt: test-int-ca2.crt test-int-ca2.key $(test_ca_config_file) test-int-ca3.csr
+	$(OPENSSL) x509 -req -extfile $(test_ca_config_file) -extensions no_subj_auth_id \
+		-CA test-int-ca2.crt -CAkey test-int-ca2.key -set_serial 77 -days 3653 \
+			-sha256 -in test-int-ca3.csr -out $@
+
 test-int-ca-exp.crt: $(test_ca_crt_file_ec) $(test_ca_key_file_ec) $(test_ca_config_file) test-int-ca.csr
 	$(FAKETIME) -f -3653d $(OPENSSL) x509 -req -extfile $(test_ca_config_file) -extensions v3_ca -CA $(test_ca_crt_file_ec) -CAkey $(test_ca_key_file_ec) -set_serial 14 -days 3653 -sha256 -in test-int-ca.csr -out $@
-all_final += test-int-ca-exp.crt
+
+all_final += test-int-ca-exp.crt test-int-ca.crt test-int-ca2.crt test-int-ca3.crt
 
 enco-cert-utf8str.pem: rsa_pkcs1_1024_clear.pem
 	$(MBEDTLS_CERT_WRITE) subject_key=rsa_pkcs1_1024_clear.pem subject_name="CN=dw.yonan.net" issuer_crt=enco-ca-prstr.pem issuer_key=rsa_pkcs1_1024_clear.pem not_before=20190210144406 not_after=20290210144406 md=SHA1 version=3 output_file=$@
@@ -271,23 +321,74 @@
 all_final += cli-rsa.key.der
 
 test_ca_int_rsa1 = test-int-ca.crt
+test_ca_int_ec = test-int-ca2.crt
+test_ca_int_key_file_ec = test-int-ca2.key
+
+# server7*
 
 server7.csr: server7.key
 	$(OPENSSL) req -new -key server7.key -subj "/C=NL/O=PolarSSL/CN=localhost" -out $@
 all_intermediate += server7.csr
+
+server7.crt: server7.csr $(test_ca_int_rsa1)
+	$(OPENSSL) x509 -req -extfile $(cli_crt_extensions_file) -extensions cli-rsa \
+		-CA $(test_ca_int_rsa1) -CAkey test-int-ca.key \
+		-set_serial 16 -days 3653 -sha256 -in server7.csr > $@
+all_final += server7.crt
+
 server7-expired.crt: server7.csr $(test_ca_int_rsa1)
 	$(FAKETIME) -f -3653d $(OPENSSL) x509 -req -extfile $(cli_crt_extensions_file) -extensions cli-rsa -CA $(test_ca_int_rsa1) -CAkey test-int-ca.key -set_serial 16 -days 3653 -sha256 -in server7.csr | cat - $(test_ca_int_rsa1) > $@
 all_final += server7-expired.crt
+
 server7-future.crt: server7.csr $(test_ca_int_rsa1)
 	$(FAKETIME) -f +3653d $(OPENSSL) x509 -req -extfile $(cli_crt_extensions_file) -extensions cli-rsa -CA $(test_ca_int_rsa1) -CAkey test-int-ca.key -set_serial 16 -days 3653 -sha256 -in server7.csr | cat - $(test_ca_int_rsa1) > $@
 all_final += server7-future.crt
+
 server7-badsign.crt: server7.crt $(test_ca_int_rsa1)
 	{ head -n-2 $<; tail -n-2 $< | sed -e '1s/0\(=*\)$$/_\1/' -e '1s/[^_=]\(=*\)$$/0\1/' -e '1s/_/1/'; cat $(test_ca_int_rsa1); } > $@
 all_final += server7-badsign.crt
+
+server7_int-ca.crt: server7.crt $(test_ca_int_rsa1)
+	cat server7.crt $(test_ca_int_rsa1) > $@
+all_final += server7_int-ca.crt
+
+server7_pem_space.crt: server7.crt $(test_ca_int_rsa1)
+	cat server7.crt $(test_ca_int_rsa1) | sed '4s/\(.\)$$/ \1/' > $@
+all_final += server7_pem_space.crt
+
+server7_all_space.crt: server7.crt $(test_ca_int_rsa1)
+	{ cat server7.crt | sed '4s/\(.\)$$/ \1/'; cat test-int-ca.crt | sed '4s/\(.\)$$/ \1/'; } > $@
+all_final += server7_all_space.crt
+
+server7_trailing_space.crt: server7.crt $(test_ca_int_rsa1)
+	cat server7.crt $(test_ca_int_rsa1) | sed 's/\(.\)$$/\1 /' > $@
+all_final += server7_trailing_space.crt
+
+server7_int-ca_ca2.crt: server7.crt $(test_ca_int_rsa1) $(test_ca_crt_file_ec)
+	cat server7.crt $(test_ca_int_rsa1) $(test_ca_crt_file_ec) > $@
+all_final += server7_int-ca_ca2.crt
+
 server7_int-ca-exp.crt: server7.crt test-int-ca-exp.crt
 	cat server7.crt test-int-ca-exp.crt > $@
 all_final += server7_int-ca-exp.crt
 
+server7_spurious_int-ca.crt: server7.crt $(test_ca_int_ec) $(test_ca_int_rsa1)
+	cat server7.crt $(test_ca_int_ec) $(test_ca_int_rsa1) > $@
+all_final += server7_spurious_int-ca.crt
+
+# server8*
+
+server8.crt: server8.key
+	$(MBEDTLS_CERT_WRITE) subject_key=$< subject_name="C=NL, O=PolarSSL, CN=localhost" serial=17 \
+		issuer_crt=$(test_ca_int_ec) issuer_key=$(test_ca_int_key_file_ec) \
+		not_before=20190210144406 not_after=20290210144406 \
+		md=SHA256 version=3 output_file=$@
+all_final += server8.crt
+
+server8_int-ca2.crt: server8.crt $(test_ca_int_ec)
+	cat $^ > $@
+all_final += server8_int-ca2.crt
+
 cli2.req.sha256: cli2.key
 	$(MBEDTLS_CERT_REQ) output_file=$@ filename=$< subject_name="C=NL,O=PolarSSL,CN=PolarSSL Test Client 2" md=SHA256
 
@@ -348,6 +449,30 @@
 server5-two-directorynames.crt.der: server5.key
 	$(OPENSSL) req -x509 -outform der -new -subj "/C=UK/O=Mbed TLS/CN=Mbed TLS directoryName SAN" -set_serial 77 -config $(test_ca_config_file) -extensions two_directorynames -days 3650 -sha256 -key server5.key -out $@
 
+server5-der0.crt: server5.crt.der
+	cp $< $@
+server5-der1a.crt: server5.crt.der
+	cp $< $@
+	echo '00' | xxd -r -p | dd of=$@ bs=1 seek=$$(wc -c <$<) conv=notrunc
+server5-der1b.crt: server5.crt.der
+	cp $< $@
+	echo 'c1' | xxd -r -p | dd of=$@ bs=1 seek=$$(wc -c <$<) conv=notrunc
+server5-der2.crt: server5.crt.der
+	cp $< $@
+	echo 'b90a' | xxd -r -p | dd of=$@ bs=1 seek=$$(wc -c <$<) conv=notrunc
+server5-der4.crt: server5.crt.der
+	cp $< $@
+	echo 'a710945f' | xxd -r -p | dd of=$@ bs=1 seek=$$(wc -c <$<) conv=notrunc
+server5-der8.crt: server5.crt.der
+	cp $< $@
+	echo 'a4a7ff27267aaa0f' | xxd -r -p | dd of=$@ bs=1 seek=$$(wc -c <$<) conv=notrunc
+server5-der9.crt: server5.crt.der
+	cp $< $@
+	echo 'cff8303376ffa47a29' | xxd -r -p | dd of=$@ bs=1 seek=$$(wc -c <$<) conv=notrunc
+all_final += server5-der0.crt server5-der1b.crt server5-der4.crt \
+			 server5-der9.crt server5-der1a.crt server5-der2.crt \
+			 server5-der8.crt
+
 # directoryname sequence tag malformed
 server5-directoryname-seq-malformed.crt.der: server5-two-directorynames.crt.der
 	hexdump -ve '1/1 "%.2X"' $< | sed "s/62A4473045310B/62A4473145310B/" | xxd -r -p > $@
@@ -364,18 +489,37 @@
 rsa_multiple_san_uri.crt.der: rsa_multiple_san_uri.key
 	$(OPENSSL) req -x509 -outform der -nodes -days 7300 -newkey rsa:2048 -key $< -out $@ -addext "subjectAltName = URI:urn:example.com:5ff40f78-9210-494f-8206-c2c082f0609c, URI:urn:example.com:5ff40f78-9210-494f-8206-abcde1234567" -extensions 'v3_req' -subj "/C=UK/O=Mbed TLS/CN=Mbed TLS URI SAN"
 
+test-int-ca3-badsign.crt: test-int-ca3.crt
+	{ head -n-2 $<; tail -n-2 $< | sed -e '1s/0\(=*\)$$/_\1/' -e '1s/[^_=]\(=*\)$$/0\1/' -e '1s/_/1/'; } > $@
+all_final += test-int-ca3-badsign.crt
+
+# server10*
+
+server10.crt: server10.key test-int-ca3.crt test-int-ca3.key
+	$(MBEDTLS_CERT_WRITE) subject_key=$< subject_name="CN=localhost" serial=75 \
+		issuer_crt=test-int-ca3.crt issuer_key=test-int-ca3.key \
+		subject_identifier=0 authority_identifier=0 \
+		not_before=20190210144406 not_after=20290210144406 \
+		md=SHA256 version=3 output_file=$@
+all_final += server10.crt
 server10-badsign.crt: server10.crt
 	{ head -n-2 $<; tail -n-2 $< | sed -e '1s/0\(=*\)$$/_\1/' -e '1s/[^_=]\(=*\)$$/0\1/' -e '1s/_/1/'; } > $@
 all_final += server10-badsign.crt
 server10-bs_int3.pem: server10-badsign.crt test-int-ca3.crt
 	cat server10-badsign.crt test-int-ca3.crt > $@
 all_final += server10-bs_int3.pem
-test-int-ca3-badsign.crt: test-int-ca3.crt
-	{ head -n-2 $<; tail -n-2 $< | sed -e '1s/0\(=*\)$$/_\1/' -e '1s/[^_=]\(=*\)$$/0\1/' -e '1s/_/1/'; } > $@
-all_final += test-int-ca3-badsign.crt
 server10_int3-bs.pem: server10.crt test-int-ca3-badsign.crt
 	cat server10.crt test-int-ca3-badsign.crt > $@
 all_final += server10_int3-bs.pem
+server10_int3_int-ca2.crt: server10.crt test-int-ca3.crt $(test_ca_int_ec)
+	cat $^ > $@
+all_final += server10_int3_int-ca2.crt
+server10_int3_int-ca2_ca.crt: server10.crt test-int-ca3.crt $(test_ca_int_ec) $(test_ca_crt)
+	cat $^ > $@
+all_final += server10_int3_int-ca2_ca.crt
+server10_int3_spurious_int-ca2.crt: server10.crt test-int-ca3.crt $(test_ca_int_rsa1) $(test_ca_int_ec)
+	cat $^ > $@
+all_final += server10_int3_spurious_int-ca2.crt
 
 rsa_pkcs1_2048_public.pem: server8.key
 	$(OPENSSL)  rsa -in $< -outform PEM -RSAPublicKey_out -out $@
@@ -393,6 +537,19 @@
 	$(OPENSSL) rsa -pubin -in $< -outform DER -pubout -out $@
 all_final += rsa_pkcs8_2048_public.der
 
+# Generate crl_cat_*.pem
+# - crt_cat_*.pem: (1+2) concatenations in various orders:
+#     ec = crl-ec-sha256.pem, ecfut = crl-future.pem
+#     rsa = crl.pem, rsabadpem = same with pem error, rsaexp = crl_expired.pem
+
+crl_cat_ec-rsa.pem:crl-ec-sha256.pem crl.pem
+	cat $^ > $@
+
+crl_cat_rsa-ec.pem:crl.pem crl-ec-sha256.pem
+	cat $^ > $@
+
+all_final += crl_cat_ec-rsa.pem crl_cat_rsa-ec.pem
+
 ################################################################
 #### Generate various RSA keys
 ################################################################
@@ -1011,32 +1168,32 @@
 	$(OPENSSL) genpkey -algorithm X25519 -out $@ -outform DER
 all_final += ec_x25519_prv.der
 
-ec_x25519_pub.der: ec_x25519_pub.der
-	$(OPENSSL) pkey -in $< -inform DER -out $@ -outform DER
+ec_x25519_pub.der: ec_x25519_prv.der
+	$(OPENSSL) pkey -in $< -inform DER -out $@ -outform DER -pubout
 all_final += ec_x25519_pub.der
 
-ec_x25519_prv.pem: ec_x25519_prv.pem
+ec_x25519_prv.pem: ec_x25519_prv.der
 	$(OPENSSL) pkey -in $< -inform DER -out $@
 all_final += ec_x25519_prv.pem
 
-ec_x25519_pub.pem: ec_x25519_pub.pem
-	$(OPENSSL) pkey -in $< -inform DER -out $@
+ec_x25519_pub.pem: ec_x25519_prv.der
+	$(OPENSSL) pkey -in $< -inform DER -out $@ -pubout
 all_final += ec_x25519_pub.pem
 
 ec_x448_prv.der:
 	$(OPENSSL) genpkey -algorithm X448 -out $@ -outform DER
 all_final += ec_x448_prv.der
 
-ec_x448_pub.der: ec_x448_pub.der
-	$(OPENSSL) pkey -in $< -inform DER -out $@ -outform DER
+ec_x448_pub.der: ec_x448_prv.der
+	$(OPENSSL) pkey -in $< -inform DER -out $@ -outform DER -pubout
 all_final += ec_x448_pub.der
 
-ec_x448_prv.pem: ec_x448_prv.pem
+ec_x448_prv.pem: ec_x448_prv.der
 	$(OPENSSL) pkey -in $< -inform DER -out $@
 all_final += ec_x448_prv.pem
 
-ec_x448_pub.pem: ec_x448_pub.pem
-	$(OPENSSL) pkey -in $< -inform DER -out $@
+ec_x448_pub.pem: ec_x448_prv.der
+	$(OPENSSL) pkey -in $< -inform DER -out $@ -pubout
 all_final += ec_x448_pub.pem
 
 ################################################################
@@ -1173,11 +1330,39 @@
 
 # server5*
 
+server5.csr: server5.key
+	$(OPENSSL) req -new -subj "/C=NL/O=PolarSSL/CN=localhost" \
+					-key $< -out $@
+all_intermediate += server5.csr
+server5.crt: server5-sha256.crt
+	cp $< $@
+all_intermediate += server5-sha256.crt
+server5-sha%.crt: server5.csr $(test_ca_crt_file_ec) $(test_ca_key_file_ec) server5.crt.openssl.v3_ext
+	$(OPENSSL) x509 -req -CA $(test_ca_crt_file_ec) -CAkey $(test_ca_key_file_ec) \
+				-extfile server5.crt.openssl.v3_ext -set_serial 9 -days 3650 \
+				-sha$(@:server5-sha%.crt=%) -in $< -out $@
+all_final += server5.crt server5-sha1.crt server5-sha224.crt server5-sha384.crt server5-sha512.crt
+
+server5-badsign.crt: server5.crt
+	{ head -n-2 $<; tail -n-2 $< | sed -e '1s/0\(=*\)$$/_\1/' -e '1s/[^_=]\(=*\)$$/0\1/' -e '1s/_/1/'; } > $@
+all_final += server5-badsign.crt
+
 # The use of 'Server 1' in the DN is intentional here, as the DN is hardcoded in the x509_write test suite.'
 server5.req.ku.sha1: server5.key
 	$(MBEDTLS_CERT_REQ) output_file=$@ filename=$< key_usage=digital_signature,non_repudiation subject_name="C=NL,O=PolarSSL,CN=PolarSSL Server 1" md=SHA1
 all_final += server5.req.ku.sha1
 
+# server6*
+
+server6.csr: server6.key
+	$(OPENSSL) req -new -subj "/C=NL/O=PolarSSL/CN=localhost" \
+					-key $< -out $@
+all_intermediate += server6.csr
+server6.crt: server6.csr $(test_ca_crt_file_ec) $(test_ca_key_file_ec)
+	$(OPENSSL) x509 -req -CA $(test_ca_crt_file_ec) -CAkey $(test_ca_key_file_ec) \
+				-extfile server5.crt.openssl.v3_ext -set_serial 10 -days 3650 -sha256 -in $< -out $@
+all_final += server6.crt
+
 ################################################################
 ### Generate certificates for CRT write check tests
 ################################################################
@@ -1326,6 +1511,24 @@
 	$(MBEDTLS_CERT_WRITE) request_file=server2.req.sha256 serial=2 issuer_crt=$(test_ca_crt) issuer_key=$(test_ca_key_file_rsa) issuer_pwd=$(test_ca_pwd_rsa) not_before=20190210144406 not_after=20290210144406 md=SHA256 version=3 output_file=$@
 all_final += server2-sha256.crt
 
+# server3*
+
+server3.crt: server3.key
+	$(MBEDTLS_CERT_WRITE) subject_key=$< subject_name="C=NL,O=PolarSSL,CN=localhost" serial=13 \
+		issuer_crt=$(test_ca_crt) issuer_key=$(test_ca_key_file_rsa) issuer_pwd=$(test_ca_pwd_rsa) \
+		not_before=20190210144406 not_after=20290210144406 \
+		md=SHA1 version=3 output_file=$@
+all_final += server3.crt
+
+# server4*
+
+server4.crt: server4.key
+	$(MBEDTLS_CERT_WRITE) subject_key=$< subject_name="C=NL,O=PolarSSL,CN=localhost" serial=8 \
+		issuer_crt=$(test_ca_crt_file_ec) issuer_key=$(test_ca_key_file_ec) \
+		not_before=20190210144400 not_after=20290210144400 \
+		md=SHA256 version=3 output_file=$@
+all_final += server4.crt
+
 # MD5 test certificate
 
 cert_md_test_key = $(cli_crt_key_file_rsa)
@@ -1396,17 +1599,17 @@
 
 # Generate signing cert
 pkcs7-rsa-sha256-1.crt:
-	$(OPENSSL) req -x509 -subj="/C=NL/O=PKCS7/CN=PKCS7 Cert 1" -sha256 -nodes -days 365  -newkey rsa:2048 -keyout pkcs7-rsa-sha256-1.key -out pkcs7-rsa-sha256-1.crt
+	$(OPENSSL) req -x509 -subj="/C=NL/O=PKCS7/CN=PKCS7 Cert 1" -sha256 -nodes -days 3653  -newkey rsa:2048 -keyout pkcs7-rsa-sha256-1.key -out pkcs7-rsa-sha256-1.crt
 	cat pkcs7-rsa-sha256-1.crt pkcs7-rsa-sha256-1.key > pkcs7-rsa-sha256-1.pem
 all_final += pkcs7-rsa-sha256-1.crt
 
 pkcs7-rsa-sha256-2.crt:
-	$(OPENSSL) req -x509 -subj="/C=NL/O=PKCS7/CN=PKCS7 Cert 2" -sha256 -nodes -days 365  -newkey rsa:2048 -keyout pkcs7-rsa-sha256-2.key -out pkcs7-rsa-sha256-2.crt
+	$(OPENSSL) req -x509 -subj="/C=NL/O=PKCS7/CN=PKCS7 Cert 2" -sha256 -nodes -days 3653  -newkey rsa:2048 -keyout pkcs7-rsa-sha256-2.key -out pkcs7-rsa-sha256-2.crt
 	cat pkcs7-rsa-sha256-2.crt pkcs7-rsa-sha256-2.key > pkcs7-rsa-sha256-2.pem
 all_final += pkcs7-rsa-sha256-2.crt
 
 pkcs7-rsa-sha256-3.crt:
-	$(OPENSSL) req -x509 -subj="/C=NL/O=PKCS7/CN=PKCS7 Cert 3" -sha256 -nodes -days 365  -newkey rsa:2048 -keyout pkcs7-rsa-sha256-3.key -out pkcs7-rsa-sha256-3.crt
+	$(OPENSSL) req -x509 -subj="/C=NL/O=PKCS7/CN=PKCS7 Cert 3" -sha256 -nodes -days 3653  -newkey rsa:2048 -keyout pkcs7-rsa-sha256-3.key -out pkcs7-rsa-sha256-3.crt
 	cat pkcs7-rsa-sha256-3.crt pkcs7-rsa-sha256-3.key > pkcs7-rsa-sha256-3.pem
 all_final += pkcs7-rsa-sha256-3.crt
 
@@ -1521,17 +1724,17 @@
 pkcs7_data_signed_badsigner2_badsize.der: pkcs7_data_3_signed.der
 	cp pkcs7_data_3_signed.der $@
 	echo '72'| xxd -p -r | dd of=$@ bs=1 seek=813 conv=notrunc
-all_final += pkcs7_data_signed_badsigner2_badsize
+all_final += pkcs7_data_signed_badsigner2_badsize.der
 
 pkcs7_data_signed_badsigner2_badtag.der: pkcs7_data_3_signed.der
 	cp pkcs7_data_3_signed.der $@
 	echo 'a1'| xxd -p -r | dd of=$@ bs=1 seek=817 conv=notrunc
-all_final += pkcs7_data_signed_badsigner2_badtag
+all_final += pkcs7_data_signed_badsigner2_badtag.der
 
 pkcs7_data_signed_badsigner2_fuzzbad.der: pkcs7_data_3_signed.der
 	cp pkcs7_data_3_signed.der $@
 	echo 'a1'| xxd -p -r | dd of=$@ bs=1 seek=925 conv=notrunc
-all_final += pkcs7_data_signed_badsigner2_fuzzbad
+all_final += pkcs7_data_signed_badsigner2_fuzzbad.der
 
 # pkcs7 file with version 2
 pkcs7_data_cert_signed_v2.der: pkcs7_data_cert_signed_sha256.der
@@ -1604,3 +1807,5 @@
 neat: clean
 	rm -f $(all_final)
 .PHONY: clean neat
+
+.SECONDARY: $(all_intermediate)
diff --git a/tests/data_files/crl-ec-sha1.pem b/tests/data_files/crl-ec-sha1.pem
index 8358640..f82d946 100644
--- a/tests/data_files/crl-ec-sha1.pem
+++ b/tests/data_files/crl-ec-sha1.pem
@@ -1,10 +1,10 @@
 -----BEGIN X509 CRL-----
-MIIBbzCB9gIBATAJBgcqhkjOPQQBMD4xCzAJBgNVBAYTAk5MMREwDwYDVQQKEwhQ
-b2xhclNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBFQyBDQRcNMTMwOTI0MTYz
-MTA4WhcNMjMwOTIyMTYzMTA4WjAUMBICAQoXDTEzMDkyNDE2MjgzOFqgcjBwMG4G
+MIIBbjCB9gIBATAJBgcqhkjOPQQBMD4xCzAJBgNVBAYTAk5MMREwDwYDVQQKDAhQ
+b2xhclNTTDEcMBoGA1UEAwwTUG9sYXJzc2wgVGVzdCBFQyBDQRcNMjMwNTE3MDcx
+NDM5WhcNMzMwNTE3MDcxNDM5WjAUMBICAQoXDTIzMDUxNzA3MTQzOVqgcjBwMG4G
 A1UdIwRnMGWAFJ1tICRJAT8ry3i1Gbx+JMnb+zZ8oUKkQDA+MQswCQYDVQQGEwJO
-TDERMA8GA1UEChMIUG9sYXJTU0wxHDAaBgNVBAMTE1BvbGFyc3NsIFRlc3QgRUMg
-Q0GCCQDBQ+J+YkPM6DAJBgcqhkjOPQQBA2kAMGYCMQDVG95rrSSl4dJgbJ5vR1GW
-svEuEsAh35EhF1WrcadMuCeMQVX9cUPupFfQUpHyMfoCMQCKf0yv8pN9BAoi3FVm
-56meWPhUekgLKKMAobt2oJJY6feuiFU2YFGs1aF0rV6Bj+U=
+TDERMA8GA1UECgwIUG9sYXJTU0wxHDAaBgNVBAMME1BvbGFyc3NsIFRlc3QgRUMg
+Q0GCCQDBQ+J+YkPM6DAJBgcqhkjOPQQBA2gAMGUCMQCRAtXd7kXgijlMXHXr6m0B
+IzDbpAAwDwCJtgOzarF5hZKGDZeDp6vptGZK0y40NsoCMACxRrXIV+6KUBipFarI
+36yXDoBNol2xzst6p9fOg+prl6p7vO1sRYrIGg1WJGA5wQ==
 -----END X509 CRL-----
diff --git a/tests/data_files/crl-ec-sha256.pem b/tests/data_files/crl-ec-sha256.pem
index adfd5f8..b9fad50 100644
--- a/tests/data_files/crl-ec-sha256.pem
+++ b/tests/data_files/crl-ec-sha256.pem
@@ -1,10 +1,10 @@
 -----BEGIN X509 CRL-----
-MIIBcTCB9wIBATAKBggqhkjOPQQDAjA+MQswCQYDVQQGEwJOTDERMA8GA1UEChMI
-UG9sYXJTU0wxHDAaBgNVBAMTE1BvbGFyc3NsIFRlc3QgRUMgQ0EXDTEzMDkyNDE2
-MzEwOFoXDTIzMDkyMjE2MzEwOFowFDASAgEKFw0xMzA5MjQxNjI4MzhaoHIwcDBu
+MIIBcTCB9wIBATAKBggqhkjOPQQDAjA+MQswCQYDVQQGEwJOTDERMA8GA1UECgwI
+UG9sYXJTU0wxHDAaBgNVBAMME1BvbGFyc3NsIFRlc3QgRUMgQ0EXDTIzMDUxNzA3
+MTQ0MFoXDTMzMDUxNzA3MTQ0MFowFDASAgEKFw0yMzA1MTcwNzE0NDBaoHIwcDBu
 BgNVHSMEZzBlgBSdbSAkSQE/K8t4tRm8fiTJ2/s2fKFCpEAwPjELMAkGA1UEBhMC
-TkwxETAPBgNVBAoTCFBvbGFyU1NMMRwwGgYDVQQDExNQb2xhcnNzbCBUZXN0IEVD
-IENBggkAwUPifmJDzOgwCgYIKoZIzj0EAwIDaQAwZgIxAKuQ684s7gyhtxKJr6Ln
-S2BQ02f1jjPHrZVdXaZvm3C5tGi2cKkoK1aMiyC3LsRCuAIxAIMhj0TmcuIZr5fX
-g5RByD7zUnZBpoEAdgxFy4JPJ2IViWOPekSGh8b/JY1VNS6Zbw==
+TkwxETAPBgNVBAoMCFBvbGFyU1NMMRwwGgYDVQQDDBNQb2xhcnNzbCBUZXN0IEVD
+IENBggkAwUPifmJDzOgwCgYIKoZIzj0EAwIDaQAwZgIxAOFCq4tS7s27+KShmh4n
+zavpLBQUbqyjkH9dJk0jg862YXjirOu9oCOoWtZQz6/LhQIxAJbtOSwJNq0F/FTq
+NYhP7ibE1jad9Tbs6igtZ7Z9NN7V5upnnL4SVETU9pvy9zh+tw==
 -----END X509 CRL-----
diff --git a/tests/data_files/crl.pem b/tests/data_files/crl.pem
index df7417e..5a1bdd3 100644
--- a/tests/data_files/crl.pem
+++ b/tests/data_files/crl.pem
@@ -1,11 +1,11 @@
 -----BEGIN X509 CRL-----
 MIIBqzCBlDANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDERMA8GA1UECgwI
-UG9sYXJTU0wxGTAXBgNVBAMMEFBvbGFyU1NMIFRlc3QgQ0EXDTE5MDIwNjE2MzQ0
-NloXDTI5MDIwNjE2MzQ0NlowKDASAgEBFw0xMTAyMTIxMjQ0MDdaMBICAQMXDTEx
-MDIxMjEyNDQwN1owDQYJKoZIhvcNAQEFBQADggEBAGHkRHGDz2HsoiXzfJDBpkfg
-I+yK34O9zoHMyGcDZbF9fj4NVyyNA6XCgY3IgQYe3boA1edO6+8ImjqiZjYK+GWt
-4ne7YhapRFAoFbKQY5hgy8mlpSRlNfmRVVCDDKannMac4tQff1LCFHN8msk/uG1b
-WHWAsL6dzLVojhbUFY6mZTb6nqjm5YgqcsNsz37n4dyrCDftB99FQdE/aAec2RXP
-Jgy9DnY5jMotPqHLZtMyfVNEoivDb7YJA5Vv6NSyiYVTjyWyTHNRsFEXRtHqjpqs
-oZdBgLZAAQsUvuVpMbDKQ4FrZjOaOW/xLtKPlh/HNA5p7hNtwIiCAIvp7uQti0w=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=
 -----END X509 CRL-----
diff --git a/tests/data_files/crl_cat_ec-rsa.pem b/tests/data_files/crl_cat_ec-rsa.pem
index 3cda8ff..cafa1d4 100644
--- a/tests/data_files/crl_cat_ec-rsa.pem
+++ b/tests/data_files/crl_cat_ec-rsa.pem
@@ -1,21 +1,21 @@
 -----BEGIN X509 CRL-----
-MIIBcTCB9wIBATAKBggqhkjOPQQDAjA+MQswCQYDVQQGEwJOTDERMA8GA1UEChMI
-UG9sYXJTU0wxHDAaBgNVBAMTE1BvbGFyc3NsIFRlc3QgRUMgQ0EXDTEzMDkyNDE2
-MzEwOFoXDTIzMDkyMjE2MzEwOFowFDASAgEKFw0xMzA5MjQxNjI4MzhaoHIwcDBu
+MIIBcTCB9wIBATAKBggqhkjOPQQDAjA+MQswCQYDVQQGEwJOTDERMA8GA1UECgwI
+UG9sYXJTU0wxHDAaBgNVBAMME1BvbGFyc3NsIFRlc3QgRUMgQ0EXDTIzMDUxNzA3
+MTQ0MFoXDTMzMDUxNzA3MTQ0MFowFDASAgEKFw0yMzA1MTcwNzE0NDBaoHIwcDBu
 BgNVHSMEZzBlgBSdbSAkSQE/K8t4tRm8fiTJ2/s2fKFCpEAwPjELMAkGA1UEBhMC
-TkwxETAPBgNVBAoTCFBvbGFyU1NMMRwwGgYDVQQDExNQb2xhcnNzbCBUZXN0IEVD
-IENBggkAwUPifmJDzOgwCgYIKoZIzj0EAwIDaQAwZgIxAKuQ684s7gyhtxKJr6Ln
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 -----END X509 CRL-----
 -----BEGIN X509 CRL-----
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 -----END X509 CRL-----
diff --git a/tests/data_files/crl_cat_rsa-ec.pem b/tests/data_files/crl_cat_rsa-ec.pem
index ded369d..92ecccc 100644
--- a/tests/data_files/crl_cat_rsa-ec.pem
+++ b/tests/data_files/crl_cat_rsa-ec.pem
@@ -1,21 +1,21 @@
 -----BEGIN X509 CRL-----
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 -----END X509 CRL-----
 -----BEGIN X509 CRL-----
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 -----END X509 CRL-----
diff --git a/tests/data_files/pkcs7-rsa-sha256-1.crt b/tests/data_files/pkcs7-rsa-sha256-1.crt
index 9e461cd..fe282ab 100644
--- a/tests/data_files/pkcs7-rsa-sha256-1.crt
+++ b/tests/data_files/pkcs7-rsa-sha256-1.crt
@@ -1,20 +1,20 @@
 -----BEGIN CERTIFICATE-----
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 -----END CERTIFICATE-----
diff --git a/tests/data_files/pkcs7-rsa-sha256-1.der b/tests/data_files/pkcs7-rsa-sha256-1.der
index 0d799ea..ed29e40 100644
--- a/tests/data_files/pkcs7-rsa-sha256-1.der
+++ b/tests/data_files/pkcs7-rsa-sha256-1.der
Binary files differ
diff --git a/tests/data_files/pkcs7-rsa-sha256-1.key b/tests/data_files/pkcs7-rsa-sha256-1.key
index e31159d..c6367fb 100644
--- a/tests/data_files/pkcs7-rsa-sha256-1.key
+++ b/tests/data_files/pkcs7-rsa-sha256-1.key
@@ -1,28 +1,28 @@
 -----BEGIN PRIVATE KEY-----
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 -----END PRIVATE KEY-----
diff --git a/tests/data_files/pkcs7-rsa-sha256-1.pem b/tests/data_files/pkcs7-rsa-sha256-1.pem
index 3795b71..deee4b2 100644
--- a/tests/data_files/pkcs7-rsa-sha256-1.pem
+++ b/tests/data_files/pkcs7-rsa-sha256-1.pem
@@ -1,48 +1,48 @@
 -----BEGIN CERTIFICATE-----
-MIIDSTCCAjGgAwIBAgIUe97d0kRM0c3+XEGoECyJt98ubL8wDQYJKoZIhvcNAQEL
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 -----END CERTIFICATE-----
 -----BEGIN PRIVATE KEY-----
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 -----END PRIVATE KEY-----
diff --git a/tests/data_files/pkcs7-rsa-sha256-2.crt b/tests/data_files/pkcs7-rsa-sha256-2.crt
index a0df7d9..2f0becb 100644
--- a/tests/data_files/pkcs7-rsa-sha256-2.crt
+++ b/tests/data_files/pkcs7-rsa-sha256-2.crt
@@ -1,20 +1,20 @@
 -----BEGIN CERTIFICATE-----
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 -----END CERTIFICATE-----
diff --git a/tests/data_files/pkcs7-rsa-sha256-2.der b/tests/data_files/pkcs7-rsa-sha256-2.der
index fc7a3ea..a101435 100644
--- a/tests/data_files/pkcs7-rsa-sha256-2.der
+++ b/tests/data_files/pkcs7-rsa-sha256-2.der
Binary files differ
diff --git a/tests/data_files/pkcs7-rsa-sha256-2.key b/tests/data_files/pkcs7-rsa-sha256-2.key
index 659c015..fe78b11 100644
--- a/tests/data_files/pkcs7-rsa-sha256-2.key
+++ b/tests/data_files/pkcs7-rsa-sha256-2.key
@@ -1,28 +1,28 @@
 -----BEGIN PRIVATE KEY-----
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 -----END PRIVATE KEY-----
diff --git a/tests/data_files/pkcs7-rsa-sha256-2.pem b/tests/data_files/pkcs7-rsa-sha256-2.pem
index b11a00a..71004b5 100644
--- a/tests/data_files/pkcs7-rsa-sha256-2.pem
+++ b/tests/data_files/pkcs7-rsa-sha256-2.pem
@@ -1,48 +1,48 @@
 -----BEGIN CERTIFICATE-----
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 -----END CERTIFICATE-----
 -----BEGIN PRIVATE KEY-----
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+2j60FMMEJPr7clx+n6xU
 -----END PRIVATE KEY-----
diff --git a/tests/data_files/pkcs7-rsa-sha256-3.crt b/tests/data_files/pkcs7-rsa-sha256-3.crt
index 5f22ce2..03ce5b35 100644
--- a/tests/data_files/pkcs7-rsa-sha256-3.crt
+++ b/tests/data_files/pkcs7-rsa-sha256-3.crt
@@ -1,20 +1,20 @@
 -----BEGIN CERTIFICATE-----
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 -----END CERTIFICATE-----
diff --git a/tests/data_files/pkcs7-rsa-sha256-3.key b/tests/data_files/pkcs7-rsa-sha256-3.key
index 3cdc717..17c4eed 100644
--- a/tests/data_files/pkcs7-rsa-sha256-3.key
+++ b/tests/data_files/pkcs7-rsa-sha256-3.key
@@ -1,28 +1,28 @@
 -----BEGIN PRIVATE KEY-----
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 -----END PRIVATE KEY-----
diff --git a/tests/data_files/pkcs7-rsa-sha256-3.pem b/tests/data_files/pkcs7-rsa-sha256-3.pem
index ee99782..0dc2fe9 100644
--- a/tests/data_files/pkcs7-rsa-sha256-3.pem
+++ b/tests/data_files/pkcs7-rsa-sha256-3.pem
@@ -1,48 +1,48 @@
 -----BEGIN CERTIFICATE-----
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 -----END CERTIFICATE-----
 -----BEGIN PRIVATE KEY-----
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 -----END PRIVATE KEY-----
diff --git a/tests/data_files/pkcs7_data_3_signed.der b/tests/data_files/pkcs7_data_3_signed.der
index 92c0710..23181ae 100644
--- a/tests/data_files/pkcs7_data_3_signed.der
+++ b/tests/data_files/pkcs7_data_3_signed.der
Binary files differ
diff --git a/tests/data_files/pkcs7_data_cert_encrypted.der b/tests/data_files/pkcs7_data_cert_encrypted.der
index b7b1c83..c3d8642 100644
--- a/tests/data_files/pkcs7_data_cert_encrypted.der
+++ b/tests/data_files/pkcs7_data_cert_encrypted.der
Binary files differ
diff --git a/tests/data_files/pkcs7_data_cert_signed_sha1.der b/tests/data_files/pkcs7_data_cert_signed_sha1.der
index fb1deb0..878e9ec 100644
--- a/tests/data_files/pkcs7_data_cert_signed_sha1.der
+++ b/tests/data_files/pkcs7_data_cert_signed_sha1.der
Binary files differ
diff --git a/tests/data_files/pkcs7_data_cert_signed_sha256.der b/tests/data_files/pkcs7_data_cert_signed_sha256.der
index 8dc2f4c..cc48123 100644
--- a/tests/data_files/pkcs7_data_cert_signed_sha256.der
+++ b/tests/data_files/pkcs7_data_cert_signed_sha256.der
Binary files differ
diff --git a/tests/data_files/pkcs7_data_cert_signed_sha512.der b/tests/data_files/pkcs7_data_cert_signed_sha512.der
index a4aa587..75bdf0f 100644
--- a/tests/data_files/pkcs7_data_cert_signed_sha512.der
+++ b/tests/data_files/pkcs7_data_cert_signed_sha512.der
Binary files differ
diff --git a/tests/data_files/pkcs7_data_cert_signed_v2.der b/tests/data_files/pkcs7_data_cert_signed_v2.der
index 4f4cb04..950db20 100644
--- a/tests/data_files/pkcs7_data_cert_signed_v2.der
+++ b/tests/data_files/pkcs7_data_cert_signed_v2.der
Binary files differ
diff --git a/tests/data_files/pkcs7_data_cert_signeddata_sha256.der b/tests/data_files/pkcs7_data_cert_signeddata_sha256.der
index cb7d751..cb97b9b 100644
--- a/tests/data_files/pkcs7_data_cert_signeddata_sha256.der
+++ b/tests/data_files/pkcs7_data_cert_signeddata_sha256.der
Binary files differ
diff --git a/tests/data_files/pkcs7_data_multiple_certs_signed.der b/tests/data_files/pkcs7_data_multiple_certs_signed.der
index 4a237e9..63d7194 100644
--- a/tests/data_files/pkcs7_data_multiple_certs_signed.der
+++ b/tests/data_files/pkcs7_data_multiple_certs_signed.der
Binary files differ
diff --git a/tests/data_files/pkcs7_data_multiple_signed.der b/tests/data_files/pkcs7_data_multiple_signed.der
index 095b80c..cc441fb 100644
--- a/tests/data_files/pkcs7_data_multiple_signed.der
+++ b/tests/data_files/pkcs7_data_multiple_signed.der
Binary files differ
diff --git a/tests/data_files/pkcs7_data_signed_badcert.der b/tests/data_files/pkcs7_data_signed_badcert.der
index ed00f65..c74d69d 100644
--- a/tests/data_files/pkcs7_data_signed_badcert.der
+++ b/tests/data_files/pkcs7_data_signed_badcert.der
Binary files differ
diff --git a/tests/data_files/pkcs7_data_signed_badsigner.der b/tests/data_files/pkcs7_data_signed_badsigner.der
index aa5447c..ba629dc 100644
--- a/tests/data_files/pkcs7_data_signed_badsigner.der
+++ b/tests/data_files/pkcs7_data_signed_badsigner.der
Binary files differ
diff --git a/tests/data_files/pkcs7_data_signed_badsigner1_badsize.der b/tests/data_files/pkcs7_data_signed_badsigner1_badsize.der
index da7f3a9..dbe9320 100644
--- a/tests/data_files/pkcs7_data_signed_badsigner1_badsize.der
+++ b/tests/data_files/pkcs7_data_signed_badsigner1_badsize.der
Binary files differ
diff --git a/tests/data_files/pkcs7_data_signed_badsigner1_badtag.der b/tests/data_files/pkcs7_data_signed_badsigner1_badtag.der
index 402b910..198b929 100644
--- a/tests/data_files/pkcs7_data_signed_badsigner1_badtag.der
+++ b/tests/data_files/pkcs7_data_signed_badsigner1_badtag.der
Binary files differ
diff --git a/tests/data_files/pkcs7_data_signed_badsigner1_fuzzbad.der b/tests/data_files/pkcs7_data_signed_badsigner1_fuzzbad.der
index e19c54a..f613e3d 100644
--- a/tests/data_files/pkcs7_data_signed_badsigner1_fuzzbad.der
+++ b/tests/data_files/pkcs7_data_signed_badsigner1_fuzzbad.der
Binary files differ
diff --git a/tests/data_files/pkcs7_data_signed_badsigner2_badsize.der b/tests/data_files/pkcs7_data_signed_badsigner2_badsize.der
index 6b12b80..0e64767 100644
--- a/tests/data_files/pkcs7_data_signed_badsigner2_badsize.der
+++ b/tests/data_files/pkcs7_data_signed_badsigner2_badsize.der
Binary files differ
diff --git a/tests/data_files/pkcs7_data_signed_badsigner2_badtag.der b/tests/data_files/pkcs7_data_signed_badsigner2_badtag.der
index 7929444..caaa305 100644
--- a/tests/data_files/pkcs7_data_signed_badsigner2_badtag.der
+++ b/tests/data_files/pkcs7_data_signed_badsigner2_badtag.der
Binary files differ
diff --git a/tests/data_files/pkcs7_data_signed_badsigner2_fuzzbad.der b/tests/data_files/pkcs7_data_signed_badsigner2_fuzzbad.der
index b52bb78..f7e0df4 100644
--- a/tests/data_files/pkcs7_data_signed_badsigner2_fuzzbad.der
+++ b/tests/data_files/pkcs7_data_signed_badsigner2_fuzzbad.der
Binary files differ
diff --git a/tests/data_files/pkcs7_data_with_signature.der b/tests/data_files/pkcs7_data_with_signature.der
index cb9d126..b98cab6 100644
--- a/tests/data_files/pkcs7_data_with_signature.der
+++ b/tests/data_files/pkcs7_data_with_signature.der
Binary files differ
diff --git a/tests/data_files/pkcs7_data_without_cert_signed.der b/tests/data_files/pkcs7_data_without_cert_signed.der
index b47fe92..390361f 100644
--- a/tests/data_files/pkcs7_data_without_cert_signed.der
+++ b/tests/data_files/pkcs7_data_without_cert_signed.der
Binary files differ
diff --git a/tests/data_files/pkcs7_signerInfo_1_serial_invalid_tag_after_long_name.der b/tests/data_files/pkcs7_signerInfo_1_serial_invalid_tag_after_long_name.der
index fe55390..0fbc65b 100644
--- a/tests/data_files/pkcs7_signerInfo_1_serial_invalid_tag_after_long_name.der
+++ b/tests/data_files/pkcs7_signerInfo_1_serial_invalid_tag_after_long_name.der
Binary files differ
diff --git a/tests/data_files/pkcs7_signerInfo_2_invalid_tag.der b/tests/data_files/pkcs7_signerInfo_2_invalid_tag.der
index 3a42874..4f059c2 100644
--- a/tests/data_files/pkcs7_signerInfo_2_invalid_tag.der
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Binary files differ
diff --git a/tests/data_files/pkcs7_signerInfo_issuer_invalid_size.der b/tests/data_files/pkcs7_signerInfo_issuer_invalid_size.der
index 898ca67..cd77545 100644
--- a/tests/data_files/pkcs7_signerInfo_issuer_invalid_size.der
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Binary files differ
diff --git a/tests/data_files/pkcs7_signerInfo_serial_invalid_size.der b/tests/data_files/pkcs7_signerInfo_serial_invalid_size.der
index f4b4e38..5efa3a9 100644
--- a/tests/data_files/pkcs7_signerInfo_serial_invalid_size.der
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Binary files differ
diff --git a/tests/data_files/pkcs7_zerolendata_detached.der b/tests/data_files/pkcs7_zerolendata_detached.der
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diff --git a/tests/data_files/server10-badsign.crt b/tests/data_files/server10-badsign.crt
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diff --git a/tests/data_files/server10_int3_int-ca2_ca.crt b/tests/data_files/server10_int3_int-ca2_ca.crt
index c25482b..3601a20 100644
--- a/tests/data_files/server10_int3_int-ca2_ca.crt
+++ b/tests/data_files/server10_int3_int-ca2_ca.crt
@@ -1,120 +1,60 @@
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-Certificate:
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-        Serial Number: 0 (0x0)
-        Signature Algorithm: sha1WithRSAEncryption
-        Issuer: C=NL, O=PolarSSL, CN=PolarSSL Test CA
-        Validity
-            Not Before: Feb 12 14:44:00 2011 GMT
-            Not After : Feb 12 14:44:00 2021 GMT
-        Subject: C=NL, O=PolarSSL, CN=PolarSSL Test CA
-        Subject Public Key Info:
-            Public Key Algorithm: rsaEncryption
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-                Modulus (2048 bit):
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-    Signature Algorithm: sha1WithRSAEncryption
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diff --git a/tests/data_files/server10_int3_spurious_int-ca2.crt b/tests/data_files/server10_int3_spurious_int-ca2.crt
index c9d6715..87cc476 100644
--- a/tests/data_files/server10_int3_spurious_int-ca2.crt
+++ b/tests/data_files/server10_int3_spurious_int-ca2.crt
@@ -1,30 +1,30 @@
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diff --git a/tests/data_files/server3.crt b/tests/data_files/server3.crt
index ed0d696..46987c3 100644
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diff --git a/tests/data_files/server4.crt b/tests/data_files/server4.crt
index 96b1aa7..2b4134d 100644
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+++ b/tests/data_files/server4.crt
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 -----END CERTIFICATE-----
diff --git a/tests/data_files/server5-badsign.crt b/tests/data_files/server5-badsign.crt
index 0c65072..b641f70 100644
--- a/tests/data_files/server5-badsign.crt
+++ b/tests/data_files/server5-badsign.crt
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 -----END CERTIFICATE-----
diff --git a/tests/data_files/server5-der0.crt b/tests/data_files/server5-der0.crt
index 08d8dd3..1e0a008 100644
--- a/tests/data_files/server5-der0.crt
+++ b/tests/data_files/server5-der0.crt
Binary files differ
diff --git a/tests/data_files/server5-der1a.crt b/tests/data_files/server5-der1a.crt
index 015017b..c143298 100644
--- a/tests/data_files/server5-der1a.crt
+++ b/tests/data_files/server5-der1a.crt
Binary files differ
diff --git a/tests/data_files/server5-der1b.crt b/tests/data_files/server5-der1b.crt
index 6340d9e..6989679 100644
--- a/tests/data_files/server5-der1b.crt
+++ b/tests/data_files/server5-der1b.crt
Binary files differ
diff --git a/tests/data_files/server5-der2.crt b/tests/data_files/server5-der2.crt
index c6e320a..56ad14c 100644
--- a/tests/data_files/server5-der2.crt
+++ b/tests/data_files/server5-der2.crt
Binary files differ
diff --git a/tests/data_files/server5-der4.crt b/tests/data_files/server5-der4.crt
index 4af05cc..4ceed41 100644
--- a/tests/data_files/server5-der4.crt
+++ b/tests/data_files/server5-der4.crt
Binary files differ
diff --git a/tests/data_files/server5-der8.crt b/tests/data_files/server5-der8.crt
index 65be7dc..07ffd2f 100644
--- a/tests/data_files/server5-der8.crt
+++ b/tests/data_files/server5-der8.crt
Binary files differ
diff --git a/tests/data_files/server5-der9.crt b/tests/data_files/server5-der9.crt
index 4947f1f..aa8f9a1 100644
--- a/tests/data_files/server5-der9.crt
+++ b/tests/data_files/server5-der9.crt
Binary files differ
diff --git a/tests/data_files/server5-sha1.crt b/tests/data_files/server5-sha1.crt
index 73e2d17..6c14183 100644
--- a/tests/data_files/server5-sha1.crt
+++ b/tests/data_files/server5-sha1.crt
@@ -1,14 +1,14 @@
 -----BEGIN CERTIFICATE-----
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 -----END CERTIFICATE-----
diff --git a/tests/data_files/server5-sha224.crt b/tests/data_files/server5-sha224.crt
index 47b1168..ad01b10 100644
--- a/tests/data_files/server5-sha224.crt
+++ b/tests/data_files/server5-sha224.crt
@@ -1,14 +1,14 @@
 -----BEGIN CERTIFICATE-----
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 -----END CERTIFICATE-----
diff --git a/tests/data_files/server5-sha384.crt b/tests/data_files/server5-sha384.crt
index 5d6a79b..7de6f8c 100644
--- a/tests/data_files/server5-sha384.crt
+++ b/tests/data_files/server5-sha384.crt
@@ -1,14 +1,14 @@
 -----BEGIN CERTIFICATE-----
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 -----END CERTIFICATE-----
diff --git a/tests/data_files/server5-sha512.crt b/tests/data_files/server5-sha512.crt
index 16112ac..8bea8c2 100644
--- a/tests/data_files/server5-sha512.crt
+++ b/tests/data_files/server5-sha512.crt
@@ -1,14 +1,14 @@
 -----BEGIN CERTIFICATE-----
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 -----END CERTIFICATE-----
diff --git a/tests/data_files/server5.crt b/tests/data_files/server5.crt
index 4597428..2eab999 100644
--- a/tests/data_files/server5.crt
+++ b/tests/data_files/server5.crt
@@ -1,14 +1,14 @@
 -----BEGIN CERTIFICATE-----
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 -----END CERTIFICATE-----
diff --git a/tests/data_files/server5.crt.der b/tests/data_files/server5.crt.der
index 08d8dd3..1e0a008 100644
--- a/tests/data_files/server5.crt.der
+++ b/tests/data_files/server5.crt.der
Binary files differ
diff --git a/tests/data_files/server5.crt.openssl.v3_ext b/tests/data_files/server5.crt.openssl.v3_ext
new file mode 100644
index 0000000..594e90a
--- /dev/null
+++ b/tests/data_files/server5.crt.openssl.v3_ext
@@ -0,0 +1,3 @@
+basicConstraints = CA:false
+subjectKeyIdentifier=hash
+authorityKeyIdentifier=keyid:always,issuer:always
diff --git a/tests/data_files/server6.crt b/tests/data_files/server6.crt
index 6df6716..51e4393 100644
--- a/tests/data_files/server6.crt
+++ b/tests/data_files/server6.crt
@@ -1,14 +1,14 @@
 -----BEGIN CERTIFICATE-----
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 -----END CERTIFICATE-----
diff --git a/tests/data_files/server7-badsign.crt b/tests/data_files/server7-badsign.crt
index 954b53a..e0d18b0 100644
--- a/tests/data_files/server7-badsign.crt
+++ b/tests/data_files/server7-badsign.crt
@@ -1,31 +1,31 @@
 -----BEGIN CERTIFICATE-----
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 -----END CERTIFICATE-----
 -----BEGIN CERTIFICATE-----
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diff --git a/tests/data_files/server7-expired.crt b/tests/data_files/server7-expired.crt
index a25ce4b..9c423c9 100644
--- a/tests/data_files/server7-expired.crt
+++ b/tests/data_files/server7-expired.crt
@@ -1,31 +1,31 @@
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diff --git a/tests/data_files/server7-future.crt b/tests/data_files/server7-future.crt
index eeb596f..b725eb7 100644
--- a/tests/data_files/server7-future.crt
+++ b/tests/data_files/server7-future.crt
@@ -1,31 +1,31 @@
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diff --git a/tests/data_files/server7.crt b/tests/data_files/server7.crt
index ed087ef..c5c2cb8 100644
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diff --git a/tests/data_files/server7_int-ca-exp.crt b/tests/data_files/server7_int-ca-exp.crt
index fc00517..a3a8f69 100644
--- a/tests/data_files/server7_int-ca-exp.crt
+++ b/tests/data_files/server7_int-ca-exp.crt
@@ -1,30 +1,30 @@
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diff --git a/tests/data_files/server7_int-ca.crt b/tests/data_files/server7_int-ca.crt
index d3ddc46..cb108a4 100644
--- a/tests/data_files/server7_int-ca.crt
+++ b/tests/data_files/server7_int-ca.crt
@@ -1,31 +1,31 @@
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diff --git a/tests/data_files/server7_int-ca_ca2.crt b/tests/data_files/server7_int-ca_ca2.crt
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diff --git a/tests/data_files/server7_spurious_int-ca.crt b/tests/data_files/server7_spurious_int-ca.crt
index 632c4fd..fdc1146 100644
--- a/tests/data_files/server7_spurious_int-ca.crt
+++ b/tests/data_files/server7_spurious_int-ca.crt
@@ -1,49 +1,49 @@
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diff --git a/tests/data_files/server8.crt b/tests/data_files/server8.crt
index b435b2d..515b17b 100644
--- a/tests/data_files/server8.crt
+++ b/tests/data_files/server8.crt
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 -----END CERTIFICATE-----
diff --git a/tests/data_files/server8_int-ca2.crt b/tests/data_files/server8_int-ca2.crt
index 7a8da71..e99727d 100644
--- a/tests/data_files/server8_int-ca2.crt
+++ b/tests/data_files/server8_int-ca2.crt
@@ -1,36 +1,35 @@
 -----BEGIN CERTIFICATE-----
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 -----END CERTIFICATE-----
 -----BEGIN CERTIFICATE-----
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 -----END CERTIFICATE-----
diff --git a/tests/data_files/test-ca.crt b/tests/data_files/test-ca.crt
index 31790b5..ef7e4c7 100644
--- a/tests/data_files/test-ca.crt
+++ b/tests/data_files/test-ca.crt
@@ -1,5 +1,5 @@
 -----BEGIN CERTIFICATE-----
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@@ -9,12 +9,12 @@
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 -----END CERTIFICATE-----
diff --git a/tests/data_files/test-ca.opensslconf b/tests/data_files/test-ca.opensslconf
index a642b73..ff22cdb 100644
--- a/tests/data_files/test-ca.opensslconf
+++ b/tests/data_files/test-ca.opensslconf
@@ -12,6 +12,11 @@
 authorityKeyIdentifier=keyid:always,issuer:always
 basicConstraints = CA:true
 
+[no_subj_auth_id]
+subjectKeyIdentifier=none
+authorityKeyIdentifier=none
+basicConstraints = CA:true
+
 [othername_san]
 subjectAltName=otherName:1.3.6.1.5.5.7.8.4;SEQ:hw_module_name
 
diff --git a/tests/data_files/test-ca.req.sha256 b/tests/data_files/test-ca.req.sha256
new file mode 100644
index 0000000..1114338
--- /dev/null
+++ b/tests/data_files/test-ca.req.sha256
@@ -0,0 +1,16 @@
+-----BEGIN CERTIFICATE REQUEST-----
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+-----END CERTIFICATE REQUEST-----
diff --git a/tests/data_files/test-ca.req_ec.sha256 b/tests/data_files/test-ca.req_ec.sha256
new file mode 100644
index 0000000..6d46b2a
--- /dev/null
+++ b/tests/data_files/test-ca.req_ec.sha256
@@ -0,0 +1,9 @@
+-----BEGIN CERTIFICATE REQUEST-----
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+-----END CERTIFICATE REQUEST-----
diff --git a/tests/data_files/test-ca2.crt b/tests/data_files/test-ca2.crt
index 7ac79e4..b974f4c 100644
--- a/tests/data_files/test-ca2.crt
+++ b/tests/data_files/test-ca2.crt
@@ -1,13 +1,13 @@
 -----BEGIN CERTIFICATE-----
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 -----END CERTIFICATE-----
diff --git a/tests/data_files/test-ca2.crt.der b/tests/data_files/test-ca2.crt.der
index 2c8e217..70d6abc 100644
--- a/tests/data_files/test-ca2.crt.der
+++ b/tests/data_files/test-ca2.crt.der
Binary files differ
diff --git a/tests/data_files/test-ca2.req.sha256 b/tests/data_files/test-ca2.req.sha256
new file mode 100644
index 0000000..6d46b2a
--- /dev/null
+++ b/tests/data_files/test-ca2.req.sha256
@@ -0,0 +1,9 @@
+-----BEGIN CERTIFICATE REQUEST-----
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+-----END CERTIFICATE REQUEST-----
diff --git a/tests/data_files/test-ca2_cat-future-invalid.crt b/tests/data_files/test-ca2_cat-future-invalid.crt
index b1cfbf0..833e497 100644
--- a/tests/data_files/test-ca2_cat-future-invalid.crt
+++ b/tests/data_files/test-ca2_cat-future-invalid.crt
@@ -1,27 +1,27 @@
 -----BEGIN CERTIFICATE-----
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diff --git a/tests/data_files/test-ca2_cat-future-present.crt b/tests/data_files/test-ca2_cat-future-present.crt
index 776e725..649cca0 100644
--- a/tests/data_files/test-ca2_cat-future-present.crt
+++ b/tests/data_files/test-ca2_cat-future-present.crt
@@ -1,28 +1,26 @@
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diff --git a/tests/data_files/test-ca2_cat-past-invalid.crt b/tests/data_files/test-ca2_cat-past-invalid.crt
index febad74..a0b0a2f 100644
--- a/tests/data_files/test-ca2_cat-past-invalid.crt
+++ b/tests/data_files/test-ca2_cat-past-invalid.crt
@@ -13,15 +13,15 @@
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diff --git a/tests/data_files/test-ca2_cat-past-present.crt b/tests/data_files/test-ca2_cat-past-present.crt
index bc1ba9a..24e05c6 100644
--- a/tests/data_files/test-ca2_cat-past-present.crt
+++ b/tests/data_files/test-ca2_cat-past-present.crt
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diff --git a/tests/data_files/test-ca2_cat-present-future.crt b/tests/data_files/test-ca2_cat-present-future.crt
index d62ed09..6539479 100644
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diff --git a/tests/data_files/test-ca2_cat-present-past.crt b/tests/data_files/test-ca2_cat-present-past.crt
index a321d5d..08aeeea 100644
--- a/tests/data_files/test-ca2_cat-present-past.crt
+++ b/tests/data_files/test-ca2_cat-present-past.crt
@@ -1,17 +1,15 @@
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diff --git a/tests/data_files/test-ca_cat12.crt b/tests/data_files/test-ca_cat12.crt
index 8928144..c54bcc1 100644
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diff --git a/tests/data_files/test-ca_cat21.crt b/tests/data_files/test-ca_cat21.crt
index 7234863..b090dc6 100644
--- a/tests/data_files/test-ca_cat21.crt
+++ b/tests/data_files/test-ca_cat21.crt
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diff --git a/tests/data_files/test-int-ca-exp.crt b/tests/data_files/test-int-ca-exp.crt
index c549654..835c7db 100644
--- a/tests/data_files/test-int-ca-exp.crt
+++ b/tests/data_files/test-int-ca-exp.crt
@@ -1,7 +1,7 @@
 -----BEGIN CERTIFICATE-----
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+z0BtLCVhFwQlrzCqgXC98SGfT6sZ
 -----END CERTIFICATE-----
diff --git a/tests/data_files/test-int-ca.crt b/tests/data_files/test-int-ca.crt
index cbe99e0..8b2846d 100644
--- a/tests/data_files/test-int-ca.crt
+++ b/tests/data_files/test-int-ca.crt
@@ -1,8 +1,8 @@
 -----BEGIN CERTIFICATE-----
 MIIEATCCA4egAwIBAgIBDjAKBggqhkjOPQQDAjA+MQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxHDAaBgNVBAMTE1BvbGFyc3NsIFRlc3QgRUMgQ0EwHhcN
-MTMwOTI0MTU1NTE0WhcNMjMwOTIyMTU1NTE0WjBIMQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxJjAkBgNVBAMTHVBvbGFyU1NMIFRlc3QgSW50ZXJtZWRp
+A1UECgwIUG9sYXJTU0wxHDAaBgNVBAMME1BvbGFyc3NsIFRlc3QgRUMgQ0EwHhcN
+MjMwNTE3MDcxMDM3WhcNMzMwNTE3MDcxMDM3WjBIMQswCQYDVQQGEwJOTDERMA8G
+A1UECgwIUG9sYXJTU0wxJjAkBgNVBAMMHVBvbGFyU1NMIFRlc3QgSW50ZXJtZWRp
 YXRlIENBMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAo1Oc8nr6fMTq
 vowV+CpC55i5BZGFGc50Eb4RLBSRTH1e7JepdFjAVbBtyQRJSiY1ja0tgLQDDKZR
 wfEI+b4azse460InPHv7C1TN0upXlxuj6m9B1IlP+sBaM7WBC6dVfPO+jVMIxgkF
@@ -16,9 +16,9 @@
 Np0MSQd+o22PQ4xRtmP6UsTfU0ueiMpYc8TYYhMbfnfFyo4m707ebcflPbBEN2dg
 updQ66cvfCJB0QJt9upafY0lpdV1qUkCAwEAAaOBoDCBnTAdBgNVHQ4EFgQUOHfY
 a3ecKHeCi07YG6ke95QWtw4wbgYDVR0jBGcwZYAUnW0gJEkBPyvLeLUZvH4kydv7
-NnyhQqRAMD4xCzAJBgNVBAYTAk5MMREwDwYDVQQKEwhQb2xhclNTTDEcMBoGA1UE
-AxMTUG9sYXJzc2wgVGVzdCBFQyBDQYIJAMFD4n5iQ8zoMAwGA1UdEwQFMAMBAf8w
-CgYIKoZIzj0EAwIDaAAwZQIxAPyE+u+eP7gRrSFjQicmpYg8jiFUCYEowWY2zuOG
-i1HXYwmpDHfasQ3rNSuf/gHvjwIwbSSjumDk+uYNci/KMELDsD0MFHxZhhBc9Hp9
-Af5cNR8KhzegznL6amRObGGKmX1F
+NnyhQqRAMD4xCzAJBgNVBAYTAk5MMREwDwYDVQQKDAhQb2xhclNTTDEcMBoGA1UE
+AwwTUG9sYXJzc2wgVGVzdCBFQyBDQYIJAMFD4n5iQ8zoMAwGA1UdEwQFMAMBAf8w
+CgYIKoZIzj0EAwIDaAAwZQIxAOAch+gz4rHfI/pm8MIDssMtJCqzS6xtOvQHJZ9l
+fdgWfJV5cSHJpOIWGXeFKKR18wIwODTRnTIioy+bYacNq8TQPjzdVlT9XbYkWIYN
+JAuV9fLJJdB5nZUG3l85Dt27VNkT
 -----END CERTIFICATE-----
diff --git a/tests/data_files/test-int-ca2.crt b/tests/data_files/test-int-ca2.crt
index 9ce44c2..80f39b9 100644
--- a/tests/data_files/test-int-ca2.crt
+++ b/tests/data_files/test-int-ca2.crt
@@ -1,18 +1,18 @@
 -----BEGIN CERTIFICATE-----
 MIIC6TCCAdGgAwIBAgIBDzANBgkqhkiG9w0BAQsFADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
-MTMwOTI0MTYwODQyWhcNMjMwOTIyMTYwODQyWjBLMQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxKTAnBgNVBAMTIFBvbGFyU1NMIFRlc3QgSW50ZXJtZWRp
+MA8GA1UECgwIUG9sYXJTU0wxGTAXBgNVBAMMEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
+MjMwNTE3MDkyNzAyWhcNMzMwNTE3MDkyNzAyWjBLMQswCQYDVQQGEwJOTDERMA8G
+A1UECgwIUG9sYXJTU0wxKTAnBgNVBAMMIFBvbGFyU1NMIFRlc3QgSW50ZXJtZWRp
 YXRlIEVDIENBMHYwEAYHKoZIzj0CAQYFK4EEACIDYgAE8Oih3fX5SLeN1dmFncQl
 WMw9+Y6sXblhlrXBxhXxjwdwpCHENn+foUVdrqYVYa7Suv3QVeO6nJ19H3QNixW8
 ik1P+hxsbaq8bta78vAyHmC4EmXQLg1w7oxb9Q82qX1Yo4GVMIGSMB0GA1UdDgQW
 BBQPib1jQevLXhco/2gwPcGI0JxYOTBjBgNVHSMEXDBagBS0WuSls97SUva51aaV
-D+s+vMf9/6E/pD0wOzELMAkGA1UEBhMCTkwxETAPBgNVBAoTCFBvbGFyU1NMMRkw
-FwYDVQQDExBQb2xhclNTTCBUZXN0IENBggEAMAwGA1UdEwQFMAMBAf8wDQYJKoZI
-hvcNAQELBQADggEBAAjeaTUaCBiXT1CYLVr6UFSeRNZBrDPnj6PwqUQTvgB5I5n6
-yXqoE4RYDaEL0Lg24juFxI26itBuypto6vscgGq77cfrP/avSdxU+xeZ4bCWvh3M
-ddj9lmko2U8I8GhBcHpSuIiTvgKDB8eKkjeq3AsLGchHDvip8pB3IhcNfL7W94Zf
-7/lH9VQiE3/px7amD32cidoPvWLA9U3f1FsPmJESUz0wwNfINpDjmPr8dGbkCN+M
-CFhxo6sCfK8KLYG4nYX8FwxVR86kpSrO9e84AX0YYbdzxprbc2XOaebJ8+BDmzut
-ARkD7DTXrodN1wV7jQJkrUuEwPj9Rhvk+MFRkaw=
+D+s+vMf9/6E/pD0wOzELMAkGA1UEBhMCTkwxETAPBgNVBAoMCFBvbGFyU1NMMRkw
+FwYDVQQDDBBQb2xhclNTTCBUZXN0IENBggEDMAwGA1UdEwQFMAMBAf8wDQYJKoZI
+hvcNAQELBQADggEBAHTN0URrP2MpwD8vODymjjq7iaB7WFZ4CWUjx9LWu3PPZbX2
+12MxzkyFaVR7rnPKZSFHJJEmNaPDJWwYhGQRXLCoD6NiJy6De4fa5gSYoXthRGFf
+GnFXZu3e37GDKoKP87TZ+VXcyx6PHvPxJB3/9N94Vj2Yh3hCs7F72GmwfDww6ooj
+whIqhxBYOhPleANs70FZ7Y7tjZV1RtQ1/9sRcbyv9OvdPuWvukBVq1KM6nqVHBZ3
+/4kHBWaFaWMq/AAxMxaTGFAOA8S2yU56jkB65viQrpQQWffBJWK+WfrcgxRWqR33
+hqG3yT1IWbJ5E11XL9TCKD+DReqeXHyYawx8fBU=
 -----END CERTIFICATE-----
diff --git a/tests/data_files/test-int-ca3-badsign.crt b/tests/data_files/test-int-ca3-badsign.crt
index 2087056..8c36315 100644
--- a/tests/data_files/test-int-ca3-badsign.crt
+++ b/tests/data_files/test-int-ca3-badsign.crt
@@ -1,12 +1,12 @@
 -----BEGIN CERTIFICATE-----
-MIIBtDCCATqgAwIBAgIBTTAKBggqhkjOPQQDAjBLMQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxKTAnBgNVBAMTIFBvbGFyU1NMIFRlc3QgSW50ZXJtZWRp
-YXRlIEVDIENBMB4XDTE1MDkwMTE0MDg0M1oXDTI1MDgyOTE0MDg0M1owSjELMAkG
-A1UEBhMCVUsxETAPBgNVBAoTCG1iZWQgVExTMSgwJgYDVQQDEx9tYmVkIFRMUyBU
+MIIBszCCATqgAwIBAgIBTTAKBggqhkjOPQQDAjBLMQswCQYDVQQGEwJOTDERMA8G
+A1UECgwIUG9sYXJTU0wxKTAnBgNVBAMMIFBvbGFyU1NMIFRlc3QgSW50ZXJtZWRp
+YXRlIEVDIENBMB4XDTIzMDUxNzA3MTAzN1oXDTMzMDUxNzA3MTAzN1owSjELMAkG
+A1UEBhMCVUsxETAPBgNVBAoMCG1iZWQgVExTMSgwJgYDVQQDDB9tYmVkIFRMUyBU
 ZXN0IGludGVybWVkaWF0ZSBDQSAzMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAE
 732fWHLNPMPsP1U1ibXvb55erlEVMlpXBGsj+KYwVqU1XCmW9Z9hhP7X/5js/DX9
-2J/utoHyjUtVpQOzdTrbsaMQMA4wDAYDVR0TBAUwAwEB/zAKBggqhkjOPQQDAgNo
-ADBlAjAJRxbGRas3NBmk9MnGWXg7PT1xnRELHRWWIvfLdVQt06l1/xFg3ZuPdQdt
-Qh7CK80CMQD7wa1o1a8qyDKBfLN636uKmKGga0E+vYXBeFCy9oARBangGCB0B2vt
-pz590JvGWf0=
+2J/utoHyjUtVpQOzdTrbsaMQMA4wDAYDVR0TBAUwAwEB/zAKBggqhkjOPQQDAgNn
+ADBkAjAZx8k0q+DtT/LJd1FjPcG/peoQDfMBL2jS/6PwxW+3+ZPMpHZn0r+JpCaF
++V/sM9kCMGqcxQwx/bsMaK0y9zqshC7/S5hVlA+WRVyMfEGJmXnfbdwh6CByKIwv
+1GRe86dg10==
 -----END CERTIFICATE-----
diff --git a/tests/data_files/test-int-ca3.crt b/tests/data_files/test-int-ca3.crt
index 7e724b2..3aa64b1 100644
--- a/tests/data_files/test-int-ca3.crt
+++ b/tests/data_files/test-int-ca3.crt
@@ -1,12 +1,12 @@
 -----BEGIN CERTIFICATE-----
-MIIBtDCCATqgAwIBAgIBTTAKBggqhkjOPQQDAjBLMQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxKTAnBgNVBAMTIFBvbGFyU1NMIFRlc3QgSW50ZXJtZWRp
-YXRlIEVDIENBMB4XDTE1MDkwMTE0MDg0M1oXDTI1MDgyOTE0MDg0M1owSjELMAkG
-A1UEBhMCVUsxETAPBgNVBAoTCG1iZWQgVExTMSgwJgYDVQQDEx9tYmVkIFRMUyBU
+MIIBszCCATqgAwIBAgIBTTAKBggqhkjOPQQDAjBLMQswCQYDVQQGEwJOTDERMA8G
+A1UECgwIUG9sYXJTU0wxKTAnBgNVBAMMIFBvbGFyU1NMIFRlc3QgSW50ZXJtZWRp
+YXRlIEVDIENBMB4XDTIzMDUxNzA3MTAzN1oXDTMzMDUxNzA3MTAzN1owSjELMAkG
+A1UEBhMCVUsxETAPBgNVBAoMCG1iZWQgVExTMSgwJgYDVQQDDB9tYmVkIFRMUyBU
 ZXN0IGludGVybWVkaWF0ZSBDQSAzMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAE
 732fWHLNPMPsP1U1ibXvb55erlEVMlpXBGsj+KYwVqU1XCmW9Z9hhP7X/5js/DX9
-2J/utoHyjUtVpQOzdTrbsaMQMA4wDAYDVR0TBAUwAwEB/zAKBggqhkjOPQQDAgNo
-ADBlAjAJRxbGRas3NBmk9MnGWXg7PT1xnRELHRWWIvfLdVQt06l1/xFg3ZuPdQdt
-Qh7CK80CMQD7wa1o1a8qyDKBfLN636uKmKGga0E+vYXBeFCy9oARBangGCB0B2vt
-pz590JvGWfM=
+2J/utoHyjUtVpQOzdTrbsaMQMA4wDAYDVR0TBAUwAwEB/zAKBggqhkjOPQQDAgNn
+ADBkAjAZx8k0q+DtT/LJd1FjPcG/peoQDfMBL2jS/6PwxW+3+ZPMpHZn0r+JpCaF
++V/sM9kCMGqcxQwx/bsMaK0y9zqshC7/S5hVlA+WRVyMfEGJmXnfbdwh6CByKIwv
+1GRe86dg1A==
 -----END CERTIFICATE-----
diff --git a/tests/src/certs.c b/tests/src/certs.c
index 1f48570..d2808d7 100644
--- a/tests/src/certs.c
+++ b/tests/src/certs.c
@@ -40,69 +40,69 @@
 
 /* This is taken from tests/data_files/test-ca2.crt */
 /* BEGIN FILE string macro TEST_CA_CRT_EC_PEM tests/data_files/test-ca2.crt */
-#define TEST_CA_CRT_EC_PEM                                                 \
-    "-----BEGIN CERTIFICATE-----\r\n"                                      \
-    "MIICBDCCAYigAwIBAgIJAMFD4n5iQ8zoMAwGCCqGSM49BAMCBQAwPjELMAkGA1UE\r\n" \
-    "BhMCTkwxETAPBgNVBAoMCFBvbGFyU1NMMRwwGgYDVQQDDBNQb2xhcnNzbCBUZXN0\r\n" \
-    "IEVDIENBMB4XDTE5MDIxMDE0NDQwMFoXDTI5MDIxMDE0NDQwMFowPjELMAkGA1UE\r\n" \
-    "BhMCTkwxETAPBgNVBAoMCFBvbGFyU1NMMRwwGgYDVQQDDBNQb2xhcnNzbCBUZXN0\r\n" \
-    "IEVDIENBMHYwEAYHKoZIzj0CAQYFK4EEACIDYgAEw9orNEE3WC+HVv78ibopQ0tO\r\n" \
-    "4G7DDldTMzlY1FK0kZU5CyPfXxckYkj8GpUpziwth8KIUoCv1mqrId240xxuWLjK\r\n" \
-    "6LJpjvNBrSnDtF91p0dv1RkpVWmaUzsgtGYWYDMeo1AwTjAMBgNVHRMEBTADAQH/\r\n" \
-    "MB0GA1UdDgQWBBSdbSAkSQE/K8t4tRm8fiTJ2/s2fDAfBgNVHSMEGDAWgBSdbSAk\r\n" \
-    "SQE/K8t4tRm8fiTJ2/s2fDAMBggqhkjOPQQDAgUAA2gAMGUCMFHKrjAPpHB0BN1a\r\n" \
-    "LH8TwcJ3vh0AxeKZj30mRdOKBmg/jLS3rU3g8VQBHpn8sOTTBwIxANxPO5AerimZ\r\n" \
-    "hCjMe0d4CTHf1gFZMF70+IqEP+o5VHsIp2Cqvflb0VGWFC5l9a4cQg==\r\n"         \
+#define TEST_CA_CRT_EC_PEM                                                     \
+    "-----BEGIN CERTIFICATE-----\r\n"                                          \
+    "MIICBzCCAYugAwIBAgIJAMFD4n5iQ8zoMAwGCCqGSM49BAMCBQAwPjELMAkGA1UE\r\n"     \
+    "BhMCTkwxETAPBgNVBAoMCFBvbGFyU1NMMRwwGgYDVQQDDBNQb2xhcnNzbCBUZXN0\r\n"     \
+    "IEVDIENBMB4XDTE5MDIxMDE0NDQwMFoXDTI5MDIxMDE0NDQwMFowPjELMAkGA1UE\r\n"     \
+    "BhMCTkwxETAPBgNVBAoMCFBvbGFyU1NMMRwwGgYDVQQDDBNQb2xhcnNzbCBUZXN0\r\n"     \
+    "IEVDIENBMHYwEAYHKoZIzj0CAQYFK4EEACIDYgAEw9orNEE3WC+HVv78ibopQ0tO\r\n"     \
+    "4G7DDldTMzlY1FK0kZU5CyPfXxckYkj8GpUpziwth8KIUoCv1mqrId240xxuWLjK\r\n"     \
+    "6LJpjvNBrSnDtF91p0dv1RkpVWmaUzsgtGYWYDMeo1MwUTAPBgNVHRMBAf8EBTAD\r\n"     \
+    "AQH/MB0GA1UdDgQWBBSdbSAkSQE/K8t4tRm8fiTJ2/s2fDAfBgNVHSMEGDAWgBSd\r\n"     \
+    "bSAkSQE/K8t4tRm8fiTJ2/s2fDAMBggqhkjOPQQDAgUAA2gAMGUCMQDpNWfBIlzq\r\n"     \
+    "6xV2UwQD/1YGz9fQUM7AfNKzVa2PVBpf/QD1TAylTYTF4GI6qlb6EPYCMF/YVa29\r\n"     \
+    "N5yC1mFAir19jb9Pl9iiIkRm17dM4y6m5VIMepEPm/VlWAa8H5p1+BPbGw==\r\n"         \
     "-----END CERTIFICATE-----\r\n"
 /* END FILE */
 
 /* This is generated from tests/data_files/test-ca2.crt.der using `xxd -i`. */
 /* BEGIN FILE binary macro TEST_CA_CRT_EC_DER tests/data_files/test-ca2.crt.der */
-#define TEST_CA_CRT_EC_DER {                                                 \
-        0x30, 0x82, 0x02, 0x04, 0x30, 0x82, 0x01, 0x88, 0xa0, 0x03, 0x02, 0x01,    \
-        0x02, 0x02, 0x09, 0x00, 0xc1, 0x43, 0xe2, 0x7e, 0x62, 0x43, 0xcc, 0xe8,    \
-        0x30, 0x0c, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02,    \
-        0x05, 0x00, 0x30, 0x3e, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04,    \
-        0x06, 0x13, 0x02, 0x4e, 0x4c, 0x31, 0x11, 0x30, 0x0f, 0x06, 0x03, 0x55,    \
-        0x04, 0x0a, 0x0c, 0x08, 0x50, 0x6f, 0x6c, 0x61, 0x72, 0x53, 0x53, 0x4c,    \
-        0x31, 0x1c, 0x30, 0x1a, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x13, 0x50,    \
-        0x6f, 0x6c, 0x61, 0x72, 0x73, 0x73, 0x6c, 0x20, 0x54, 0x65, 0x73, 0x74,    \
-        0x20, 0x45, 0x43, 0x20, 0x43, 0x41, 0x30, 0x1e, 0x17, 0x0d, 0x31, 0x39,    \
-        0x30, 0x32, 0x31, 0x30, 0x31, 0x34, 0x34, 0x34, 0x30, 0x30, 0x5a, 0x17,    \
-        0x0d, 0x32, 0x39, 0x30, 0x32, 0x31, 0x30, 0x31, 0x34, 0x34, 0x34, 0x30,    \
-        0x30, 0x5a, 0x30, 0x3e, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04,    \
-        0x06, 0x13, 0x02, 0x4e, 0x4c, 0x31, 0x11, 0x30, 0x0f, 0x06, 0x03, 0x55,    \
-        0x04, 0x0a, 0x0c, 0x08, 0x50, 0x6f, 0x6c, 0x61, 0x72, 0x53, 0x53, 0x4c,    \
-        0x31, 0x1c, 0x30, 0x1a, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x13, 0x50,    \
-        0x6f, 0x6c, 0x61, 0x72, 0x73, 0x73, 0x6c, 0x20, 0x54, 0x65, 0x73, 0x74,    \
-        0x20, 0x45, 0x43, 0x20, 0x43, 0x41, 0x30, 0x76, 0x30, 0x10, 0x06, 0x07,    \
-        0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02, 0x01, 0x06, 0x05, 0x2b, 0x81, 0x04,    \
-        0x00, 0x22, 0x03, 0x62, 0x00, 0x04, 0xc3, 0xda, 0x2b, 0x34, 0x41, 0x37,    \
-        0x58, 0x2f, 0x87, 0x56, 0xfe, 0xfc, 0x89, 0xba, 0x29, 0x43, 0x4b, 0x4e,    \
-        0xe0, 0x6e, 0xc3, 0x0e, 0x57, 0x53, 0x33, 0x39, 0x58, 0xd4, 0x52, 0xb4,    \
-        0x91, 0x95, 0x39, 0x0b, 0x23, 0xdf, 0x5f, 0x17, 0x24, 0x62, 0x48, 0xfc,    \
-        0x1a, 0x95, 0x29, 0xce, 0x2c, 0x2d, 0x87, 0xc2, 0x88, 0x52, 0x80, 0xaf,    \
-        0xd6, 0x6a, 0xab, 0x21, 0xdd, 0xb8, 0xd3, 0x1c, 0x6e, 0x58, 0xb8, 0xca,    \
-        0xe8, 0xb2, 0x69, 0x8e, 0xf3, 0x41, 0xad, 0x29, 0xc3, 0xb4, 0x5f, 0x75,    \
-        0xa7, 0x47, 0x6f, 0xd5, 0x19, 0x29, 0x55, 0x69, 0x9a, 0x53, 0x3b, 0x20,    \
-        0xb4, 0x66, 0x16, 0x60, 0x33, 0x1e, 0xa3, 0x50, 0x30, 0x4e, 0x30, 0x0c,    \
-        0x06, 0x03, 0x55, 0x1d, 0x13, 0x04, 0x05, 0x30, 0x03, 0x01, 0x01, 0xff,    \
-        0x30, 0x1d, 0x06, 0x03, 0x55, 0x1d, 0x0e, 0x04, 0x16, 0x04, 0x14, 0x9d,    \
-        0x6d, 0x20, 0x24, 0x49, 0x01, 0x3f, 0x2b, 0xcb, 0x78, 0xb5, 0x19, 0xbc,    \
-        0x7e, 0x24, 0xc9, 0xdb, 0xfb, 0x36, 0x7c, 0x30, 0x1f, 0x06, 0x03, 0x55,    \
-        0x1d, 0x23, 0x04, 0x18, 0x30, 0x16, 0x80, 0x14, 0x9d, 0x6d, 0x20, 0x24,    \
-        0x49, 0x01, 0x3f, 0x2b, 0xcb, 0x78, 0xb5, 0x19, 0xbc, 0x7e, 0x24, 0xc9,    \
-        0xdb, 0xfb, 0x36, 0x7c, 0x30, 0x0c, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce,    \
-        0x3d, 0x04, 0x03, 0x02, 0x05, 0x00, 0x03, 0x68, 0x00, 0x30, 0x65, 0x02,    \
-        0x30, 0x51, 0xca, 0xae, 0x30, 0x0f, 0xa4, 0x70, 0x74, 0x04, 0xdd, 0x5a,    \
-        0x2c, 0x7f, 0x13, 0xc1, 0xc2, 0x77, 0xbe, 0x1d, 0x00, 0xc5, 0xe2, 0x99,    \
-        0x8f, 0x7d, 0x26, 0x45, 0xd3, 0x8a, 0x06, 0x68, 0x3f, 0x8c, 0xb4, 0xb7,    \
-        0xad, 0x4d, 0xe0, 0xf1, 0x54, 0x01, 0x1e, 0x99, 0xfc, 0xb0, 0xe4, 0xd3,    \
-        0x07, 0x02, 0x31, 0x00, 0xdc, 0x4f, 0x3b, 0x90, 0x1e, 0xae, 0x29, 0x99,    \
-        0x84, 0x28, 0xcc, 0x7b, 0x47, 0x78, 0x09, 0x31, 0xdf, 0xd6, 0x01, 0x59,    \
-        0x30, 0x5e, 0xf4, 0xf8, 0x8a, 0x84, 0x3f, 0xea, 0x39, 0x54, 0x7b, 0x08,    \
-        0xa7, 0x60, 0xaa, 0xbd, 0xf9, 0x5b, 0xd1, 0x51, 0x96, 0x14, 0x2e, 0x65,    \
-        0xf5, 0xae, 0x1c, 0x42                                                     \
+#define TEST_CA_CRT_EC_DER {                                                    \
+        0x30, 0x82, 0x02, 0x07, 0x30, 0x82, 0x01, 0x8b, 0xa0, 0x03, 0x02, 0x01, \
+        0x02, 0x02, 0x09, 0x00, 0xc1, 0x43, 0xe2, 0x7e, 0x62, 0x43, 0xcc, 0xe8, \
+        0x30, 0x0c, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02, \
+        0x05, 0x00, 0x30, 0x3e, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04, \
+        0x06, 0x13, 0x02, 0x4e, 0x4c, 0x31, 0x11, 0x30, 0x0f, 0x06, 0x03, 0x55, \
+        0x04, 0x0a, 0x0c, 0x08, 0x50, 0x6f, 0x6c, 0x61, 0x72, 0x53, 0x53, 0x4c, \
+        0x31, 0x1c, 0x30, 0x1a, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x13, 0x50, \
+        0x6f, 0x6c, 0x61, 0x72, 0x73, 0x73, 0x6c, 0x20, 0x54, 0x65, 0x73, 0x74, \
+        0x20, 0x45, 0x43, 0x20, 0x43, 0x41, 0x30, 0x1e, 0x17, 0x0d, 0x31, 0x39, \
+        0x30, 0x32, 0x31, 0x30, 0x31, 0x34, 0x34, 0x34, 0x30, 0x30, 0x5a, 0x17, \
+        0x0d, 0x32, 0x39, 0x30, 0x32, 0x31, 0x30, 0x31, 0x34, 0x34, 0x34, 0x30, \
+        0x30, 0x5a, 0x30, 0x3e, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04, \
+        0x06, 0x13, 0x02, 0x4e, 0x4c, 0x31, 0x11, 0x30, 0x0f, 0x06, 0x03, 0x55, \
+        0x04, 0x0a, 0x0c, 0x08, 0x50, 0x6f, 0x6c, 0x61, 0x72, 0x53, 0x53, 0x4c, \
+        0x31, 0x1c, 0x30, 0x1a, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x13, 0x50, \
+        0x6f, 0x6c, 0x61, 0x72, 0x73, 0x73, 0x6c, 0x20, 0x54, 0x65, 0x73, 0x74, \
+        0x20, 0x45, 0x43, 0x20, 0x43, 0x41, 0x30, 0x76, 0x30, 0x10, 0x06, 0x07, \
+        0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02, 0x01, 0x06, 0x05, 0x2b, 0x81, 0x04, \
+        0x00, 0x22, 0x03, 0x62, 0x00, 0x04, 0xc3, 0xda, 0x2b, 0x34, 0x41, 0x37, \
+        0x58, 0x2f, 0x87, 0x56, 0xfe, 0xfc, 0x89, 0xba, 0x29, 0x43, 0x4b, 0x4e, \
+        0xe0, 0x6e, 0xc3, 0x0e, 0x57, 0x53, 0x33, 0x39, 0x58, 0xd4, 0x52, 0xb4, \
+        0x91, 0x95, 0x39, 0x0b, 0x23, 0xdf, 0x5f, 0x17, 0x24, 0x62, 0x48, 0xfc, \
+        0x1a, 0x95, 0x29, 0xce, 0x2c, 0x2d, 0x87, 0xc2, 0x88, 0x52, 0x80, 0xaf, \
+        0xd6, 0x6a, 0xab, 0x21, 0xdd, 0xb8, 0xd3, 0x1c, 0x6e, 0x58, 0xb8, 0xca, \
+        0xe8, 0xb2, 0x69, 0x8e, 0xf3, 0x41, 0xad, 0x29, 0xc3, 0xb4, 0x5f, 0x75, \
+        0xa7, 0x47, 0x6f, 0xd5, 0x19, 0x29, 0x55, 0x69, 0x9a, 0x53, 0x3b, 0x20, \
+        0xb4, 0x66, 0x16, 0x60, 0x33, 0x1e, 0xa3, 0x53, 0x30, 0x51, 0x30, 0x0f, \
+        0x06, 0x03, 0x55, 0x1d, 0x13, 0x01, 0x01, 0xff, 0x04, 0x05, 0x30, 0x03, \
+        0x01, 0x01, 0xff, 0x30, 0x1d, 0x06, 0x03, 0x55, 0x1d, 0x0e, 0x04, 0x16, \
+        0x04, 0x14, 0x9d, 0x6d, 0x20, 0x24, 0x49, 0x01, 0x3f, 0x2b, 0xcb, 0x78, \
+        0xb5, 0x19, 0xbc, 0x7e, 0x24, 0xc9, 0xdb, 0xfb, 0x36, 0x7c, 0x30, 0x1f, \
+        0x06, 0x03, 0x55, 0x1d, 0x23, 0x04, 0x18, 0x30, 0x16, 0x80, 0x14, 0x9d, \
+        0x6d, 0x20, 0x24, 0x49, 0x01, 0x3f, 0x2b, 0xcb, 0x78, 0xb5, 0x19, 0xbc, \
+        0x7e, 0x24, 0xc9, 0xdb, 0xfb, 0x36, 0x7c, 0x30, 0x0c, 0x06, 0x08, 0x2a, \
+        0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02, 0x05, 0x00, 0x03, 0x68, 0x00, \
+        0x30, 0x65, 0x02, 0x31, 0x00, 0xe9, 0x35, 0x67, 0xc1, 0x22, 0x5c, 0xea, \
+        0xeb, 0x15, 0x76, 0x53, 0x04, 0x03, 0xff, 0x56, 0x06, 0xcf, 0xd7, 0xd0, \
+        0x50, 0xce, 0xc0, 0x7c, 0xd2, 0xb3, 0x55, 0xad, 0x8f, 0x54, 0x1a, 0x5f, \
+        0xfd, 0x00, 0xf5, 0x4c, 0x0c, 0xa5, 0x4d, 0x84, 0xc5, 0xe0, 0x62, 0x3a, \
+        0xaa, 0x56, 0xfa, 0x10, 0xf6, 0x02, 0x30, 0x5f, 0xd8, 0x55, 0xad, 0xbd, \
+        0x37, 0x9c, 0x82, 0xd6, 0x61, 0x40, 0x8a, 0xbd, 0x7d, 0x8d, 0xbf, 0x4f, \
+        0x97, 0xd8, 0xa2, 0x22, 0x44, 0x66, 0xd7, 0xb7, 0x4c, 0xe3, 0x2e, 0xa6, \
+        0xe5, 0x52, 0x0c, 0x7a, 0x91, 0x0f, 0x9b, 0xf5, 0x65, 0x58, 0x06, 0xbc, \
+        0x1f, 0x9a, 0x75, 0xf8, 0x13, 0xdb, 0x1b                                \
 }
 /* END FILE */
 
@@ -503,72 +503,72 @@
 
 /* This is taken from tests/data_files/server5.crt. */
 /* BEGIN FILE string macro TEST_SRV_CRT_EC_PEM tests/data_files/server5.crt */
-#define TEST_SRV_CRT_EC_PEM                                                \
-    "-----BEGIN CERTIFICATE-----\r\n"                                      \
-    "MIICHzCCAaWgAwIBAgIBCTAKBggqhkjOPQQDAjA+MQswCQYDVQQGEwJOTDERMA8G\r\n" \
-    "A1UEChMIUG9sYXJTU0wxHDAaBgNVBAMTE1BvbGFyc3NsIFRlc3QgRUMgQ0EwHhcN\r\n" \
-    "MTMwOTI0MTU1MjA0WhcNMjMwOTIyMTU1MjA0WjA0MQswCQYDVQQGEwJOTDERMA8G\r\n" \
-    "A1UEChMIUG9sYXJTU0wxEjAQBgNVBAMTCWxvY2FsaG9zdDBZMBMGByqGSM49AgEG\r\n" \
-    "CCqGSM49AwEHA0IABDfMVtl2CR5acj7HWS3/IG7ufPkGkXTQrRS192giWWKSTuUA\r\n" \
-    "2CMR/+ov0jRdXRa9iojCa3cNVc2KKg76Aci07f+jgZ0wgZowCQYDVR0TBAIwADAd\r\n" \
-    "BgNVHQ4EFgQUUGGlj9QH2deCAQzlZX+MY0anE74wbgYDVR0jBGcwZYAUnW0gJEkB\r\n" \
-    "PyvLeLUZvH4kydv7NnyhQqRAMD4xCzAJBgNVBAYTAk5MMREwDwYDVQQKEwhQb2xh\r\n" \
-    "clNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBFQyBDQYIJAMFD4n5iQ8zoMAoG\r\n" \
-    "CCqGSM49BAMCA2gAMGUCMQCaLFzXptui5WQN8LlO3ddh1hMxx6tzgLvT03MTVK2S\r\n" \
-    "C12r0Lz3ri/moSEpNZWqPjkCMCE2f53GXcYLqyfyJR078c/xNSUU5+Xxl7VZ414V\r\n" \
-    "fGa5kHvHARBPc8YAIVIqDvHH1Q==\r\n"                                     \
+#define TEST_SRV_CRT_EC_PEM                                                    \
+    "-----BEGIN CERTIFICATE-----\r\n"                                          \
+    "MIICIDCCAaWgAwIBAgIBCTAKBggqhkjOPQQDAjA+MQswCQYDVQQGEwJOTDERMA8G\r\n"     \
+    "A1UECgwIUG9sYXJTU0wxHDAaBgNVBAMME1BvbGFyc3NsIFRlc3QgRUMgQ0EwHhcN\r\n"     \
+    "MjMwNTE3MDcxMDM2WhcNMzMwNTE0MDcxMDM2WjA0MQswCQYDVQQGEwJOTDERMA8G\r\n"     \
+    "A1UECgwIUG9sYXJTU0wxEjAQBgNVBAMMCWxvY2FsaG9zdDBZMBMGByqGSM49AgEG\r\n"     \
+    "CCqGSM49AwEHA0IABDfMVtl2CR5acj7HWS3/IG7ufPkGkXTQrRS192giWWKSTuUA\r\n"     \
+    "2CMR/+ov0jRdXRa9iojCa3cNVc2KKg76Aci07f+jgZ0wgZowCQYDVR0TBAIwADAd\r\n"     \
+    "BgNVHQ4EFgQUUGGlj9QH2deCAQzlZX+MY0anE74wbgYDVR0jBGcwZYAUnW0gJEkB\r\n"     \
+    "PyvLeLUZvH4kydv7NnyhQqRAMD4xCzAJBgNVBAYTAk5MMREwDwYDVQQKDAhQb2xh\r\n"     \
+    "clNTTDEcMBoGA1UEAwwTUG9sYXJzc2wgVGVzdCBFQyBDQYIJAMFD4n5iQ8zoMAoG\r\n"     \
+    "CCqGSM49BAMCA2kAMGYCMQDg6p7PPfr2+n7nGvya3pU4ust3k7Obk4/tZX+uHHRQ\r\n"     \
+    "qaccsyULeFNzkyRvWHFeT5sCMQCzDJX79Ii7hILYza/iXWJe/BjJEE8MteCRGXDN\r\n"     \
+    "06jC+BLgOH1KQV9ArqEh3AhOhEg=\r\n"                                         \
     "-----END CERTIFICATE-----\r\n"
 /* END FILE */
 
 /* This is generated from tests/data_files/server5.crt.der using `xxd -i`. */
 /* BEGIN FILE binary macro TEST_SRV_CRT_EC_DER tests/data_files/server5.crt.der */
-#define TEST_SRV_CRT_EC_DER {                                                \
-        0x30, 0x82, 0x02, 0x1f, 0x30, 0x82, 0x01, 0xa5, 0xa0, 0x03, 0x02, 0x01,  \
-        0x02, 0x02, 0x01, 0x09, 0x30, 0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce,  \
-        0x3d, 0x04, 0x03, 0x02, 0x30, 0x3e, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03,  \
-        0x55, 0x04, 0x06, 0x13, 0x02, 0x4e, 0x4c, 0x31, 0x11, 0x30, 0x0f, 0x06,  \
-        0x03, 0x55, 0x04, 0x0a, 0x13, 0x08, 0x50, 0x6f, 0x6c, 0x61, 0x72, 0x53,  \
-        0x53, 0x4c, 0x31, 0x1c, 0x30, 0x1a, 0x06, 0x03, 0x55, 0x04, 0x03, 0x13,  \
-        0x13, 0x50, 0x6f, 0x6c, 0x61, 0x72, 0x73, 0x73, 0x6c, 0x20, 0x54, 0x65,  \
-        0x73, 0x74, 0x20, 0x45, 0x43, 0x20, 0x43, 0x41, 0x30, 0x1e, 0x17, 0x0d,  \
-        0x31, 0x33, 0x30, 0x39, 0x32, 0x34, 0x31, 0x35, 0x35, 0x32, 0x30, 0x34,  \
-        0x5a, 0x17, 0x0d, 0x32, 0x33, 0x30, 0x39, 0x32, 0x32, 0x31, 0x35, 0x35,  \
-        0x32, 0x30, 0x34, 0x5a, 0x30, 0x34, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03,  \
-        0x55, 0x04, 0x06, 0x13, 0x02, 0x4e, 0x4c, 0x31, 0x11, 0x30, 0x0f, 0x06,  \
-        0x03, 0x55, 0x04, 0x0a, 0x13, 0x08, 0x50, 0x6f, 0x6c, 0x61, 0x72, 0x53,  \
-        0x53, 0x4c, 0x31, 0x12, 0x30, 0x10, 0x06, 0x03, 0x55, 0x04, 0x03, 0x13,  \
-        0x09, 0x6c, 0x6f, 0x63, 0x61, 0x6c, 0x68, 0x6f, 0x73, 0x74, 0x30, 0x59,  \
-        0x30, 0x13, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02, 0x01, 0x06,  \
-        0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x03, 0x01, 0x07, 0x03, 0x42, 0x00,  \
-        0x04, 0x37, 0xcc, 0x56, 0xd9, 0x76, 0x09, 0x1e, 0x5a, 0x72, 0x3e, 0xc7,  \
-        0x59, 0x2d, 0xff, 0x20, 0x6e, 0xee, 0x7c, 0xf9, 0x06, 0x91, 0x74, 0xd0,  \
-        0xad, 0x14, 0xb5, 0xf7, 0x68, 0x22, 0x59, 0x62, 0x92, 0x4e, 0xe5, 0x00,  \
-        0xd8, 0x23, 0x11, 0xff, 0xea, 0x2f, 0xd2, 0x34, 0x5d, 0x5d, 0x16, 0xbd,  \
-        0x8a, 0x88, 0xc2, 0x6b, 0x77, 0x0d, 0x55, 0xcd, 0x8a, 0x2a, 0x0e, 0xfa,  \
-        0x01, 0xc8, 0xb4, 0xed, 0xff, 0xa3, 0x81, 0x9d, 0x30, 0x81, 0x9a, 0x30,  \
-        0x09, 0x06, 0x03, 0x55, 0x1d, 0x13, 0x04, 0x02, 0x30, 0x00, 0x30, 0x1d,  \
-        0x06, 0x03, 0x55, 0x1d, 0x0e, 0x04, 0x16, 0x04, 0x14, 0x50, 0x61, 0xa5,  \
-        0x8f, 0xd4, 0x07, 0xd9, 0xd7, 0x82, 0x01, 0x0c, 0xe5, 0x65, 0x7f, 0x8c,  \
-        0x63, 0x46, 0xa7, 0x13, 0xbe, 0x30, 0x6e, 0x06, 0x03, 0x55, 0x1d, 0x23,  \
-        0x04, 0x67, 0x30, 0x65, 0x80, 0x14, 0x9d, 0x6d, 0x20, 0x24, 0x49, 0x01,  \
-        0x3f, 0x2b, 0xcb, 0x78, 0xb5, 0x19, 0xbc, 0x7e, 0x24, 0xc9, 0xdb, 0xfb,  \
-        0x36, 0x7c, 0xa1, 0x42, 0xa4, 0x40, 0x30, 0x3e, 0x31, 0x0b, 0x30, 0x09,  \
-        0x06, 0x03, 0x55, 0x04, 0x06, 0x13, 0x02, 0x4e, 0x4c, 0x31, 0x11, 0x30,  \
-        0x0f, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x13, 0x08, 0x50, 0x6f, 0x6c, 0x61,  \
-        0x72, 0x53, 0x53, 0x4c, 0x31, 0x1c, 0x30, 0x1a, 0x06, 0x03, 0x55, 0x04,  \
-        0x03, 0x13, 0x13, 0x50, 0x6f, 0x6c, 0x61, 0x72, 0x73, 0x73, 0x6c, 0x20,  \
-        0x54, 0x65, 0x73, 0x74, 0x20, 0x45, 0x43, 0x20, 0x43, 0x41, 0x82, 0x09,  \
-        0x00, 0xc1, 0x43, 0xe2, 0x7e, 0x62, 0x43, 0xcc, 0xe8, 0x30, 0x0a, 0x06,  \
-        0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02, 0x03, 0x68, 0x00,  \
-        0x30, 0x65, 0x02, 0x31, 0x00, 0x9a, 0x2c, 0x5c, 0xd7, 0xa6, 0xdb, 0xa2,  \
-        0xe5, 0x64, 0x0d, 0xf0, 0xb9, 0x4e, 0xdd, 0xd7, 0x61, 0xd6, 0x13, 0x31,  \
-        0xc7, 0xab, 0x73, 0x80, 0xbb, 0xd3, 0xd3, 0x73, 0x13, 0x54, 0xad, 0x92,  \
-        0x0b, 0x5d, 0xab, 0xd0, 0xbc, 0xf7, 0xae, 0x2f, 0xe6, 0xa1, 0x21, 0x29,  \
-        0x35, 0x95, 0xaa, 0x3e, 0x39, 0x02, 0x30, 0x21, 0x36, 0x7f, 0x9d, 0xc6,  \
-        0x5d, 0xc6, 0x0b, 0xab, 0x27, 0xf2, 0x25, 0x1d, 0x3b, 0xf1, 0xcf, 0xf1,  \
-        0x35, 0x25, 0x14, 0xe7, 0xe5, 0xf1, 0x97, 0xb5, 0x59, 0xe3, 0x5e, 0x15,  \
-        0x7c, 0x66, 0xb9, 0x90, 0x7b, 0xc7, 0x01, 0x10, 0x4f, 0x73, 0xc6, 0x00,  \
-        0x21, 0x52, 0x2a, 0x0e, 0xf1, 0xc7, 0xd5                                 \
+#define TEST_SRV_CRT_EC_DER {                                                   \
+        0x30, 0x82, 0x02, 0x20, 0x30, 0x82, 0x01, 0xa5, 0xa0, 0x03, 0x02, 0x01, \
+        0x02, 0x02, 0x01, 0x09, 0x30, 0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, \
+        0x3d, 0x04, 0x03, 0x02, 0x30, 0x3e, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, \
+        0x55, 0x04, 0x06, 0x13, 0x02, 0x4e, 0x4c, 0x31, 0x11, 0x30, 0x0f, 0x06, \
+        0x03, 0x55, 0x04, 0x0a, 0x0c, 0x08, 0x50, 0x6f, 0x6c, 0x61, 0x72, 0x53, \
+        0x53, 0x4c, 0x31, 0x1c, 0x30, 0x1a, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, \
+        0x13, 0x50, 0x6f, 0x6c, 0x61, 0x72, 0x73, 0x73, 0x6c, 0x20, 0x54, 0x65, \
+        0x73, 0x74, 0x20, 0x45, 0x43, 0x20, 0x43, 0x41, 0x30, 0x1e, 0x17, 0x0d, \
+        0x32, 0x33, 0x30, 0x35, 0x31, 0x37, 0x30, 0x37, 0x31, 0x30, 0x33, 0x36, \
+        0x5a, 0x17, 0x0d, 0x33, 0x33, 0x30, 0x35, 0x31, 0x34, 0x30, 0x37, 0x31, \
+        0x30, 0x33, 0x36, 0x5a, 0x30, 0x34, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, \
+        0x55, 0x04, 0x06, 0x13, 0x02, 0x4e, 0x4c, 0x31, 0x11, 0x30, 0x0f, 0x06, \
+        0x03, 0x55, 0x04, 0x0a, 0x0c, 0x08, 0x50, 0x6f, 0x6c, 0x61, 0x72, 0x53, \
+        0x53, 0x4c, 0x31, 0x12, 0x30, 0x10, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, \
+        0x09, 0x6c, 0x6f, 0x63, 0x61, 0x6c, 0x68, 0x6f, 0x73, 0x74, 0x30, 0x59, \
+        0x30, 0x13, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02, 0x01, 0x06, \
+        0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x03, 0x01, 0x07, 0x03, 0x42, 0x00, \
+        0x04, 0x37, 0xcc, 0x56, 0xd9, 0x76, 0x09, 0x1e, 0x5a, 0x72, 0x3e, 0xc7, \
+        0x59, 0x2d, 0xff, 0x20, 0x6e, 0xee, 0x7c, 0xf9, 0x06, 0x91, 0x74, 0xd0, \
+        0xad, 0x14, 0xb5, 0xf7, 0x68, 0x22, 0x59, 0x62, 0x92, 0x4e, 0xe5, 0x00, \
+        0xd8, 0x23, 0x11, 0xff, 0xea, 0x2f, 0xd2, 0x34, 0x5d, 0x5d, 0x16, 0xbd, \
+        0x8a, 0x88, 0xc2, 0x6b, 0x77, 0x0d, 0x55, 0xcd, 0x8a, 0x2a, 0x0e, 0xfa, \
+        0x01, 0xc8, 0xb4, 0xed, 0xff, 0xa3, 0x81, 0x9d, 0x30, 0x81, 0x9a, 0x30, \
+        0x09, 0x06, 0x03, 0x55, 0x1d, 0x13, 0x04, 0x02, 0x30, 0x00, 0x30, 0x1d, \
+        0x06, 0x03, 0x55, 0x1d, 0x0e, 0x04, 0x16, 0x04, 0x14, 0x50, 0x61, 0xa5, \
+        0x8f, 0xd4, 0x07, 0xd9, 0xd7, 0x82, 0x01, 0x0c, 0xe5, 0x65, 0x7f, 0x8c, \
+        0x63, 0x46, 0xa7, 0x13, 0xbe, 0x30, 0x6e, 0x06, 0x03, 0x55, 0x1d, 0x23, \
+        0x04, 0x67, 0x30, 0x65, 0x80, 0x14, 0x9d, 0x6d, 0x20, 0x24, 0x49, 0x01, \
+        0x3f, 0x2b, 0xcb, 0x78, 0xb5, 0x19, 0xbc, 0x7e, 0x24, 0xc9, 0xdb, 0xfb, \
+        0x36, 0x7c, 0xa1, 0x42, 0xa4, 0x40, 0x30, 0x3e, 0x31, 0x0b, 0x30, 0x09, \
+        0x06, 0x03, 0x55, 0x04, 0x06, 0x13, 0x02, 0x4e, 0x4c, 0x31, 0x11, 0x30, \
+        0x0f, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x0c, 0x08, 0x50, 0x6f, 0x6c, 0x61, \
+        0x72, 0x53, 0x53, 0x4c, 0x31, 0x1c, 0x30, 0x1a, 0x06, 0x03, 0x55, 0x04, \
+        0x03, 0x0c, 0x13, 0x50, 0x6f, 0x6c, 0x61, 0x72, 0x73, 0x73, 0x6c, 0x20, \
+        0x54, 0x65, 0x73, 0x74, 0x20, 0x45, 0x43, 0x20, 0x43, 0x41, 0x82, 0x09, \
+        0x00, 0xc1, 0x43, 0xe2, 0x7e, 0x62, 0x43, 0xcc, 0xe8, 0x30, 0x0a, 0x06, \
+        0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02, 0x03, 0x69, 0x00, \
+        0x30, 0x66, 0x02, 0x31, 0x00, 0xe0, 0xea, 0x9e, 0xcf, 0x3d, 0xfa, 0xf6, \
+        0xfa, 0x7e, 0xe7, 0x1a, 0xfc, 0x9a, 0xde, 0x95, 0x38, 0xba, 0xcb, 0x77, \
+        0x93, 0xb3, 0x9b, 0x93, 0x8f, 0xed, 0x65, 0x7f, 0xae, 0x1c, 0x74, 0x50, \
+        0xa9, 0xa7, 0x1c, 0xb3, 0x25, 0x0b, 0x78, 0x53, 0x73, 0x93, 0x24, 0x6f, \
+        0x58, 0x71, 0x5e, 0x4f, 0x9b, 0x02, 0x31, 0x00, 0xb3, 0x0c, 0x95, 0xfb, \
+        0xf4, 0x88, 0xbb, 0x84, 0x82, 0xd8, 0xcd, 0xaf, 0xe2, 0x5d, 0x62, 0x5e, \
+        0xfc, 0x18, 0xc9, 0x10, 0x4f, 0x0c, 0xb5, 0xe0, 0x91, 0x19, 0x70, 0xcd, \
+        0xd3, 0xa8, 0xc2, 0xf8, 0x12, 0xe0, 0x38, 0x7d, 0x4a, 0x41, 0x5f, 0x40, \
+        0xae, 0xa1, 0x21, 0xdc, 0x08, 0x4e, 0x84, 0x48                          \
 }
 /* END FILE */
 
diff --git a/tests/suites/test_suite_oid.data b/tests/suites/test_suite_oid.data
index e7fbf1b..00f6e0b 100644
--- a/tests/suites/test_suite_oid.data
+++ b/tests/suites/test_suite_oid.data
@@ -137,3 +137,51 @@
 
 OID get numeric string - overlong encoding, second subidentifier
 oid_get_numeric_string:"2B8001":MBEDTLS_ERR_ASN1_INVALID_DATA:""
+
+OID from numeric string - hardware module name
+oid_from_numeric_string:"1.3.6.1.5.5.7.8.4":0:"2B06010505070804"
+
+OID from numeric string - multi-byte subidentifier
+oid_from_numeric_string:"1.1.2108":0:"29903C"
+
+OID from numeric string - second component greater than 39
+oid_from_numeric_string:"2.49.0.0.826.0":0:"81010000863A00"
+
+OID from numeric string - multi-byte first subidentifier
+oid_from_numeric_string:"2.999":0:"8837"
+
+OID from numeric string - empty string input
+oid_from_numeric_string:"":MBEDTLS_ERR_ASN1_INVALID_DATA:""
+
+OID from numeric string - first component not a number
+oid_from_numeric_string:"abc.1.2":MBEDTLS_ERR_ASN1_INVALID_DATA:""
+
+OID from numeric string - second component not a number
+oid_from_numeric_string:"1.abc.2":MBEDTLS_ERR_ASN1_INVALID_DATA:""
+
+OID from numeric string - first component too large
+oid_from_numeric_string:"3.1":MBEDTLS_ERR_ASN1_INVALID_DATA:""
+
+OID from numeric string - first component < 2, second > 39
+oid_from_numeric_string:"1.40":MBEDTLS_ERR_ASN1_INVALID_DATA:""
+
+OID from numeric string - third component not a number
+oid_from_numeric_string:"1.2.abc":MBEDTLS_ERR_ASN1_INVALID_DATA:""
+
+OID from numeric string - non-'.' separator between first and second
+oid_from_numeric_string:"1/2.3.4":MBEDTLS_ERR_ASN1_INVALID_DATA:""
+
+OID from numeric string - non-'.' separator between second and third
+oid_from_numeric_string:"1.2/3.4":MBEDTLS_ERR_ASN1_INVALID_DATA:""
+
+OID from numeric string - non-'.' separator between third and fourth
+oid_from_numeric_string:"1.2.3/4":MBEDTLS_ERR_ASN1_INVALID_DATA:""
+
+OID from numeric string - OID greater than max length (129 components)
+oid_from_numeric_string:"1.2.3.4.5.6.7.8.1.2.3.4.5.6.7.8.1.2.3.4.5.6.7.8.1.2.3.4.5.6.7.8.1.2.3.4.5.6.7.8.1.2.3.4.5.6.7.8.1.2.3.4.5.6.7.8.1.2.3.4.5.6.7.8.1.2.3.4.5.6.7.8.1.2.3.4.5.6.7.8.1.2.3.4.5.6.7.8.1.2.3.4.5.6.7.8.1.2.3.4.5.6.7.8.1.2.3.4.5.6.7.8.1.2.3.4.5.6.7.8.1.2.3.4.5.6.7.8.1":MBEDTLS_ERR_ASN1_INVALID_DATA:""
+
+OID from numeric string - OID with maximum subidentifier
+oid_from_numeric_string:"2.4294967215":0:"8FFFFFFF7F"
+
+OID from numeric string - OID with overflowing subidentifier
+oid_from_numeric_string:"2.4294967216":MBEDTLS_ERR_ASN1_INVALID_DATA:""
diff --git a/tests/suites/test_suite_oid.function b/tests/suites/test_suite_oid.function
index 68b769f..3adc6af 100644
--- a/tests/suites/test_suite_oid.function
+++ b/tests/suites/test_suite_oid.function
@@ -119,3 +119,29 @@
     }
 }
 /* END_CASE */
+
+/* BEGIN_CASE */
+void oid_from_numeric_string(char *oid_str, int error_ret,
+                             data_t *exp_oid_buf)
+{
+    mbedtls_asn1_buf oid = { 0, 0, NULL };
+    mbedtls_asn1_buf exp_oid = { 0, 0, NULL };
+    int ret;
+
+    exp_oid.tag = MBEDTLS_ASN1_OID;
+    exp_oid.p = exp_oid_buf->x;
+    exp_oid.len = exp_oid_buf->len;
+
+    ret = mbedtls_oid_from_numeric_string(&oid, oid_str, strlen(oid_str));
+
+    if (error_ret == 0) {
+        TEST_EQUAL(oid.len, exp_oid.len);
+        TEST_ASSERT(memcmp(oid.p, exp_oid.p, oid.len) == 0);
+        mbedtls_free(oid.p);
+        oid.p = NULL;
+        oid.len = 0;
+    } else {
+        TEST_EQUAL(ret, error_ret);
+    }
+}
+/* END_CASE */