diff --git a/ChangeLog.d/bugfix.txt b/ChangeLog.d/bugfix.txt
index 499fd40..922bd31 100644
--- a/ChangeLog.d/bugfix.txt
+++ b/ChangeLog.d/bugfix.txt
@@ -1,4 +1,4 @@
 Bugfix
    * Fix the Visual Studio Release x64 build configuration for mbedtls itself.
      Completes a previous fix in Mbed TLS 2.19 that only fixed the build for
-     the example programs. Reported in #1430 and fix contributed by irwir.
\ No newline at end of file
+     the example programs. Reported in #1430 and fix contributed by irwir.
diff --git a/ChangeLog.d/bugfix_PR2855.txt b/ChangeLog.d/bugfix_PR2855.txt
index a097321..6e29710 100644
--- a/ChangeLog.d/bugfix_PR2855.txt
+++ b/ChangeLog.d/bugfix_PR2855.txt
@@ -1,2 +1,2 @@
 Bugfix
-   * Remove dead code in X.509 certificate parsing. Contributed by irwir in #2855.
\ No newline at end of file
+   * Remove dead code in X.509 certificate parsing. Contributed by irwir in #2855.
diff --git a/ChangeLog.d/fix-gcc-format-signedness-warnings.txt b/ChangeLog.d/fix-gcc-format-signedness-warnings.txt
index 023d15c..2d22b94 100644
--- a/ChangeLog.d/fix-gcc-format-signedness-warnings.txt
+++ b/ChangeLog.d/fix-gcc-format-signedness-warnings.txt
@@ -1,3 +1,4 @@
 Changes
    * Fix warnings about signedness issues in format strings. The build is now
-     clean of -Wformat-signedness warnings. Contributed by Kenneth Soerensen in #3153.
+     clean of -Wformat-signedness warnings. Contributed by Kenneth Soerensen
+     in #3153.
diff --git a/ChangeLog.d/fix-null-ptr-deref-in-mbedtls_ssl_free.txt b/ChangeLog.d/fix-null-ptr-deref-in-mbedtls_ssl_free.txt
index 9554aa0..e631f4d 100644
--- a/ChangeLog.d/fix-null-ptr-deref-in-mbedtls_ssl_free.txt
+++ b/ChangeLog.d/fix-null-ptr-deref-in-mbedtls_ssl_free.txt
@@ -1,3 +1,3 @@
 Bugfix
    * Avoid NULL pointer dereferencing if mbedtls_ssl_free() is called with a
-     NULL pointer argument. Contributed by Sander Visser in #3312.
\ No newline at end of file
+     NULL pointer argument. Contributed by Sander Visser in #3312.
diff --git a/ChangeLog.d/fix-print-non-ascii-string-in-mbedtls_x509_dn_gets.txt b/ChangeLog.d/fix-print-non-ascii-string-in-mbedtls_x509_dn_gets.txt
index 320b0b8..6be1e5b 100644
--- a/ChangeLog.d/fix-print-non-ascii-string-in-mbedtls_x509_dn_gets.txt
+++ b/ChangeLog.d/fix-print-non-ascii-string-in-mbedtls_x509_dn_gets.txt
@@ -1,3 +1,3 @@
 Changes
-   * Fix mbedtls_x509_dn_gets to escape non-ASCII characters as "?". 
+   * Fix mbedtls_x509_dn_gets to escape non-ASCII characters as "?".
      Contributed by Koh M. Nakagawa in #3326.
diff --git a/docs/architecture/Makefile b/docs/architecture/Makefile
index ab22fb1..d8db2e0 100644
--- a/docs/architecture/Makefile
+++ b/docs/architecture/Makefile
@@ -5,6 +5,7 @@
 all_markdown = \
 	       mbed-crypto-storage-specification.md \
 	       testing/driver-interface-test-strategy.md \
+	       testing/invasive-testing.md \
 	       testing/test-framework.md \
 	       # This line is intentionally left blank
 
@@ -22,3 +23,4 @@
 
 clean:
 	rm -f *.html *.pdf
+	rm -f testing/*.html testing/*.pdf
diff --git a/docs/architecture/testing/invasive-testing.md b/docs/architecture/testing/invasive-testing.md
new file mode 100644
index 0000000..744f194
--- /dev/null
+++ b/docs/architecture/testing/invasive-testing.md
@@ -0,0 +1,367 @@
+# Mbed TLS invasive testing strategy
+
+## Introduction
+
+In Mbed TLS, we use black-box testing as much as possible: test the documented behavior of the product, in a realistic environment. However this is not always sufficient.
+
+The goal of this document is to identify areas where black-box testing is insufficient and to propose solutions.
+
+This is a test strategy document, not a test plan. A description of exactly what is tested is out of scope.
+
+This document is structured as follows:
+
+* [“Rules”](#rules) gives general rules and is written for brevity.
+* [“Requirements”](#requirements) explores the reasons why invasive testing is needed and how it should be done.
+* [“Possible approaches”](#possible-approaches) discusses some general methods for non-black-box testing.
+* [“Solutions”](#solutions) explains how we currently solve, or intend to solve, specific problems.
+
+### TLS
+
+This document currently focuses on data structure manipulation and storage, which is what the crypto/keystore and X.509 parts of the library are about. More work is needed to fully take TLS into account.
+
+## Rules
+
+Always follow these rules unless you have a good reason not to. If you deviate, document the rationale somewhere.
+
+See the section [“Possible approaches”](#possible-approaches) for a rationale.
+
+### Interface design for testing
+
+Do not add test-specific interfaces if there's a practical way of doing it another way. All public interfaces should be useful in at least some configurations. Features with a significant impact on the code size or attack surface should have a compile-time guard.
+
+### Reliance on internal details
+
+In unit tests and in test programs, it's ok to include header files from `library/`. Do not define non-public interfaces in public headers (`include/mbedtls` has `*_internal.h` headers for legacy reasons, but this approach is deprecated). In contrast, sample programs must not include header files from `library/`.
+
+Sometimes it makes sense to have unit tests on functions that aren't part of the public API. Declare such functions in `library/*.h` and include the corresponding header in the test code. If the function should be `static` for optimization but can't be `static` for testing, declare it as `MBEDTLS_STATIC_TESTABLE`, and make the tests that use it depend on `MBEDTLS_TEST_HOOKS` (see [“rules for compile-time options”](#rules-for-compile-time-options)).
+
+If test code or test data depends on internal details of the library and not just on its documented behavior, add a comment in the code that explains the dependency. For example:
+
+> ```
+> /* This test file is specific to the ITS implementation in PSA Crypto
+>  * on top of stdio. It expects to know what the stdio name of a file is
+>  * based on its keystore name.
+>  */
+> ```
+
+> ```
+> # This test assumes that PSA_MAX_KEY_BITS (currently 65536-8 bits = 8191 bytes
+> # and not expected to be raised any time soon) is less than the maximum
+> # output from HKDF-SHA512 (255*64 = 16320 bytes).
+> ```
+
+### Rules for compile-time options
+
+If the most practical way to test something is to add code to the product that is only useful for testing, do so, but obey the following rules. For more information, see the [rationale](#guidelines-for-compile-time-options).
+
+* **Only use test-specific code when necessary.** Anything that can be tested through the documented API must be tested through the documented API.
+* **Test-specific code must be guarded by `#if defined(MBEDTLS_TEST_HOOKS)`**. Do not create fine-grained guards for test-specific code.
+* **Do not use `MBEDTLS_TEST_HOOKS` for security checks or assertions.** Security checks belong in the product.
+* **Merely defining `MBEDTLS_TEST_HOOKS` must not change the behavior**. It may define extra functions. It may add fields to structures, but if so, make it very clear that these fields have no impact on non-test-specific fields.
+* **Where tests must be able to change the behavior, do it by function substitution.** See [“rules for function substitution”](#rules-for-function-substitution) for more details.
+
+#### Rules for function substitution
+
+This section explains how to replace a library function `mbedtls_foo()` by alternative code for test purposes. That is, library code calls `mbedtls_foo()`, and there is a mechanism to arrange for these calls to invoke different code.
+
+Often `mbedtls_foo` is a macro which is defined to be a system function (like `mbedtls_calloc` or `mbedtls_fopen`), which we replace to mock or wrap the system function. This is useful to simulate I/O failure, for example. Note that if the macro can be replaced at compile time to support alternative platforms, the test code should be compatible with this compile-time configuration so that it works on these alternative platforms as well.
+
+Sometimes the substitutable function is a `static inline` function that does nothing (not a macro, to avoid accidentally skipping side effects in its parameters), to provide a hook for test code; such functions should have a name that starts with the prefix `mbedtls_test_hook_`. In such cases, the function should generally not modify its parameters, so any pointer argument should be const. The function should return void.
+
+With `MBEDTLS_TEST_HOOKS` set, `mbedtls_foo` is a global variable of function pointer type. This global variable is initialized to the system function, or to a function that does nothing. The global variable is defined in a header in the `library` directory such as `psa_crypto_invasive.h`. This is similar to the platform function configuration mechanism with `MBEDTLS_PLATFORM_xxx_ALT`.
+
+In unit test code that needs to modify the internal behavior:
+
+* The test function (or the whole test file) must depend on `MBEDTLS_TEST_HOOKS`.
+* At the beginning of the test function, set the global function pointers to the desired value.
+* In the test function's cleanup code, restore the global function pointers to their default value.
+
+## Requirements
+
+### General goals
+
+We need to balance the following goals, which are sometimes contradictory.
+
+* Coverage: we need to test behaviors which are not easy to trigger by using the API or which cannot be triggered deterministically, for example I/O failures.
+* Correctness: we want to test the actual product, not a modified version, since conclusions drawn from a test of a modified product may not apply to the real product.
+* Effacement: the product should not include features that are solely present for test purposes, since these increase the attack surface and the code size.
+* Portability: tests should work on every platform. Skipping tests on certain platforms may hide errors that are only apparent on such platforms.
+* Maintainability: tests should only enforce the documented behavior of the product, to avoid extra work when the product's internal or implementation-specific behavior changes. We should also not give the impression that whatever the tests check is guaranteed behavior of the product which cannot change in future versions.
+
+Where those goals conflict, we should at least mitigate the goals that cannot be fulfilled, and document the architectural choices and their rationale.
+
+### Problem areas
+
+#### Allocation
+
+Resource allocation can fail, but rarely does so in a typical test environment. How does the product cope if some allocations fail?
+
+Resources include:
+
+* Memory.
+* Files in storage (PSA API only — in the Mbed TLS API, black-box unit tests are sufficient).
+* Key handles (PSA API only).
+* Key slots in a secure element (PSA SE HAL).
+* Communication handles (PSA crypto service only).
+
+#### Storage
+
+Storage can fail, either due to hardware errors or to active attacks on trusted storage. How does the code cope if some storage accesses fail?
+
+We also need to test resilience: if the system is reset during an operation, does it restart in a correct state?
+
+#### Cleanup
+
+When code should clean up resources, how do we know that they have truly been cleaned up?
+
+* Zeroization of confidential data after use.
+* Freeing memory.
+* Closing key handles.
+* Freeing key slots in a secure element.
+* Deleting files in storage (PSA API only).
+
+#### Internal data
+
+Sometimes it is useful to peek or poke internal data.
+
+* Check consistency of internal data (e.g. output of key generation).
+* Check the format of files (which matters so that the product can still read old files after an upgrade).
+* Inject faults and test corruption checks inside the product.
+
+## Possible approaches
+
+Key to requirement tables:
+
+* ++ requirement is fully met
+* \+ requirement is mostly met
+* ~ requirement is partially met but there are limitations
+* ! requirement is somewhat problematic
+* !! requirement is very problematic
+
+### Fine-grained public interfaces
+
+We can include all the features we want to test in the public interface. Then the tests can be truly black-box. The limitation of this approach is that this requires adding a lot of interfaces that are not useful in production. These interfaces have costs: they increase the code size, the attack surface, and the testing burden (exponentially, because we need to test all these interfaces in combination).
+
+As a rule, we do not add public interfaces solely for testing purposes. We only add public interfaces if they are also useful in production, at least sometimes. For example, the main purpose of `mbedtls_psa_crypto_free` is to clean up all resources in tests, but this is also useful in production in some applications that only want to use PSA Crypto during part of their lifetime.
+
+Mbed TLS traditionally has very fine-grained public interfaces, with many platform functions that can be substituted (`MBEDTLS_PLATFORM_xxx` macros). PSA Crypto has more opacity and less platform substitution macros.
+
+| Requirement | Analysis |
+| ----------- | -------- |
+| Coverage | ~ Many useful tests are not reasonably achievable |
+| Correctness | ++ Ideal |
+| Effacement | !! Requires adding many otherwise-useless interfaces |
+| Portability | ++ Ideal; the additional interfaces may be useful for portability beyond testing |
+| Maintainability | !! Combinatorial explosion on the testing burden |
+|                 | ! Public interfaces must remain for backward compatibility even if the test architecture changes |
+
+### Fine-grained undocumented interfaces
+
+We can include all the features we want to test in undocumented interfaces. Undocumented interfaces are described in public headers for the sake of the C compiler, but are described as “do not use” in comments (or not described at all) and are not included in Doxygen-rendered documentation. This mitigates some of the downsides of [fine-grained public interfaces](#fine-grained-public-interfaces), but not all. In particular, the extra interfaces do increase the code size, the attack surface and the test surface.
+
+Mbed TLS traditionally has a few internal interfaces, mostly intended for cross-module abstraction leakage rather than for testing. For the PSA API, we favor [internal interfaces](#internal-interfaces).
+
+| Requirement | Analysis |
+| ----------- | -------- |
+| Coverage | ~ Many useful tests are not reasonably achievable |
+| Correctness | ++ Ideal |
+| Effacement | !! Requires adding many otherwise-useless interfaces |
+| Portability | ++ Ideal; the additional interfaces may be useful for portability beyond testing |
+| Maintainability | ! Combinatorial explosion on the testing burden |
+
+### Internal interfaces
+
+We can write tests that call internal functions that are not exposed in the public interfaces. This is nice when it works, because it lets us test the unchanged product without compromising the design of the public interface.
+
+A limitation is that these interfaces must exist in the first place. If they don't, this has mostly the same downside as public interfaces: the extra interfaces increase the code size and the attack surface for no direct benefit to the product.
+
+Another limitation is that internal interfaces need to be used correctly. We may accidentally rely on internal details in the tests that are not necessarily always true (for example that are platform-specific). We may accidentally use these internal interfaces in ways that don't correspond to the actual product.
+
+This approach is mostly portable since it only relies on C interfaces. A limitation is that the test-only interfaces must not be hidden at link time (but link-time hiding is not something we currently do). Another limitation is that this approach does not work for users who patch the library by replacing some modules; this is a secondary concern since we do not officially offer this as a feature.
+
+| Requirement | Analysis |
+| ----------- | -------- |
+| Coverage | ~ Many useful tests require additional internal interfaces |
+| Correctness | + Does not require a product change |
+|             | ~ The tests may call internal functions in a way that does not reflect actual usage inside the product |
+| Effacement | ++ Fine as long as the internal interfaces aren't added solely for test purposes |
+| Portability | + Fine as long as we control how the tests are linked |
+|             | ~ Doesn't work if the users rewrite an internal module |
+| Maintainability | + Tests interfaces that are documented; dependencies in the tests are easily noticed when changing these interfaces |
+
+### Static analysis
+
+If we guarantee certain properties through static analysis, we don't need to test them. This puts some constraints on the properties:
+
+* We need to have confidence in the specification (but we can gain this confidence by evaluating the specification on test data).
+* This does not work for platform-dependent properties unless we have a formal model of the platform.
+
+| Requirement | Analysis |
+| ----------- | -------- |
+| Coverage | ~ Good for platform-independent properties, if we can guarantee them statically |
+| Correctness | + Good as long as we have confidence in the specification |
+| Effacement | ++ Zero impact on the code |
+| Portability | ++ Zero runtime burden |
+| Maintainability | ~ Static analysis is hard, but it's also helpful |
+
+### Compile-time options
+
+If there's code that we want to have in the product for testing, but not in production, we can add a compile-time option to enable it. This is very powerful and usually easy to use, but comes with a major downside: we aren't testing the same code anymore.
+
+| Requirement | Analysis |
+| ----------- | -------- |
+| Coverage | ++ Most things can be tested that way |
+| Correctness | ! Difficult to ensure that what we test is what we run |
+| Effacement | ++ No impact on the product when built normally or on the documentation, if done right |
+|             | ! Risk of getting “no impact” wrong |
+| Portability | ++ It's just C code so it works everywhere |
+|             | ~ Doesn't work if the users rewrite an internal module |
+| Maintainability | + Test interfaces impact the product source code, but at least they're clearly marked as such in the code |
+
+#### Guidelines for compile-time options
+
+* **Minimize the number of compile-time options.**<br>
+  Either we're testing or we're not. Fine-grained options for testing would require more test builds, especially if combinatorics enters the play.
+* **Merely enabling the compile-time option should not change the behavior.**<br>
+  When building in test mode, the code should have exactly the same behavior. Changing the behavior should require some action at runtime (calling a function or changing a variable).
+* **Minimize the impact on code**.<br>
+  We should not have test-specific conditional compilation littered through the code, as that makes the code hard to read.
+
+### Runtime instrumentation
+
+Some properties can be tested through runtime instrumentation: have the compiler or a similar tool inject something into the binary.
+
+* Sanitizers check for certain bad usage patterns (ASan, MSan, UBSan, Valgrind).
+* We can inject external libraries at link time. This can be a way to make system functions fail.
+
+| Requirement | Analysis |
+| ----------- | -------- |
+| Coverage | ! Limited scope |
+| Correctness | + Instrumentation generally does not affect the program's functional behavior |
+| Effacement | ++ Zero impact on the code |
+| Portability | ~ Depends on the method |
+| Maintainability | ~ Depending on the instrumentation, this may require additional builds and scripts |
+|                 | + Many properties come for free, but some require effort (e.g. the test code itself must be leak-free to avoid false positives in a leak detector) |
+
+### Debugger-based testing
+
+If we want to do something in a test that the product isn't capable of doing, we can use a debugger to read or modify the memory, or hook into the code at arbitrary points.
+
+This is a very powerful approach, but it comes with limitations:
+
+* The debugger may introduce behavior changes (e.g. timing). If we modify data structures in memory, we may do so in a way that the code doesn't expect.
+* Due to compiler optimizations, the memory may not have the layout that we expect.
+* Writing reliable debugger scripts is hard. We need to have confidence that we're testing what we mean to test, even in the face of compiler optimizations. Languages such as gdb make it hard to automate even relatively simple things such as finding the place(s) in the binary corresponding to some place in the source code.
+* Debugger scripts are very much non-portable.
+
+| Requirement | Analysis |
+| ----------- | -------- |
+| Coverage | ++ The sky is the limit |
+| Correctness | ++ The code is unmodified, and tested as compiled (so we even detect compiler-induced bugs) |
+|             | ! Compiler optimizations may hinder |
+|             | ~ Modifying the execution may introduce divergence |
+| Effacement | ++ Zero impact on the code |
+| Portability | !! Not all environments have a debugger, and even if they do, we'd need completely different scripts for every debugger |
+| Maintainability | ! Writing reliable debugger scripts is hard |
+|                 | !! Very tight coupling with the details of the source code and even with the compiler |
+
+## Solutions
+
+This section lists some strategies that are currently used for invasive testing, or planned to be used. This list is not intended to be exhaustive.
+
+### Memory management
+
+#### Zeroization testing
+
+Goal: test that `mbedtls_platform_zeroize` does wipe the memory buffer.
+
+Solution ([debugger](#debugger-based-testing)): implemented in `tests/scripts/test_zeroize.gdb`.
+
+Rationale: this cannot be tested by adding C code, because the danger is that the compiler optimizes the zeroization away, and any C code that observes the zeroization would cause the compiler not to optimize it away.
+
+#### Memory cleanup
+
+Goal: test the absence of memory leaks.
+
+Solution ([instrumentation](#runtime-instrumentation)): run tests with ASan. (We also use Valgrind, but it's slower than ASan, so we favor ASan.)
+
+Since we run many test jobs with a memory leak detector, each test function or test program must clean up after itself. Use the cleanup code (after the `exit` label in test functions) to free any memory that the function may have allocated.
+
+#### Robustness against memory allocation failure
+
+Solution: TODO. We don't test this at all at this point.
+
+#### PSA key store memory cleanup
+
+Goal: test the absence of resource leaks in the PSA key store code, in particular that `psa_close_key` and `psa_destroy_key` work correctly.
+
+Solution ([internal interface](#internal-interfaces)): in most tests involving PSA functions, the cleanup code explicitly calls `PSA_DONE()` instead of `mbedtls_psa_crypto_free()`. `PSA_DONE` fails the test if the key store in memory is not empty.
+
+Note there must also be tests that call `mbedtls_psa_crypto_free` with keys still open, to verify that it does close all keys.
+
+`PSA_DONE` is a macro defined in `psa_crypto_helpers.h` which uses `mbedtls_psa_get_stats()` to get information about the keystore content before calling `mbedtls_psa_crypto_free()`. This feature is mostly but not exclusively useful for testing, and may be moved under `MBEDTLS_TEST_HOOKS`.
+
+### PSA storage
+
+#### PSA storage cleanup on success
+
+Goal: test that no stray files are left over in the key store after a test that succeeded.
+
+Solution: TODO. Currently the various test suites do it differently.
+
+#### PSA storage cleanup on failure
+
+Goal: ensure that no stray files are left over in the key store even if a test has failed (as that could cause other tests to fail).
+
+Solution: TODO. Currently the various test suites do it differently.
+
+#### PSA storage resilience
+
+Goal: test the resilience of PSA storage against power failures.
+
+Solution: TODO.
+
+See the [secure element driver interface test strategy](driver-interface-test-strategy.html) for more information.
+
+#### Corrupted storage
+
+Goal: test the robustness against corrupted storage.
+
+Solution ([internal interface](#internal-interfaces)): call `psa_its` functions to modify the storage.
+
+#### Storage read failure
+
+Goal: test the robustness against read errors.
+
+Solution: TODO
+
+#### Storage write failure
+
+Goal: test the robustness against write errors (`STORAGE_FAILURE` or `INSUFFICIENT_STORAGE`).
+
+Solution: TODO
+
+#### Storage format stability
+
+Goal: test that the storage format does not change between versions (or if it does, an upgrade path must be provided).
+
+Solution ([internal interface](#internal-interfaces)): call internal functions to inspect the content of the file.
+
+Note that the storage format is defined not only by the general layout, but also by the numerical values of encodings for key types and other metadata. For numerical values, there is a risk that we would accidentally modify a single value or a few values, so the tests should be exhaustive. This probably requires some compile-time analysis (perhaps the automation for `psa_constant_names` can be used here). TODO
+
+### Other fault injection
+
+#### PSA crypto init failure
+
+Goal: test the failure of `psa_crypto_init`.
+
+Solution ([compile-time option](#compile-time-options)): replace entropy initialization functions by functions that can fail. This is the only failure point for `psa_crypto_init` that is present in all builds.
+
+When we implement the PSA entropy driver interface, this should be reworked to use the entropy driver interface.
+
+#### PSA crypto data corruption
+
+The PSA crypto subsystem has a few checks to detect corrupted data in memory. We currently don't have a way to exercise those checks.
+
+Solution: TODO. To corrupt a multipart operation structure, we can do it by looking inside the structure content, but only when running without isolation. To corrupt the key store, we would need to add a function to the library or to use a debugger.
+
diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h
index 901e26d..de7c664 100644
--- a/include/mbedtls/config.h
+++ b/include/mbedtls/config.h
@@ -1866,6 +1866,26 @@
 //#define MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH
 
 /**
+ * \def MBEDTLS_TEST_HOOKS
+ *
+ * Enable features for invasive testing such as introspection functions and
+ * hooks for fault injection. This enables additional unit tests.
+ *
+ * Merely enabling this feature should not change the behavior of the product.
+ * It only adds new code, and new branching points where the default behavior
+ * is the same as when this feature is disabled.
+ * However, this feature increases the attack surface: there is an added
+ * risk of vulnerabilities, and more gadgets that can make exploits easier.
+ * Therefore this feature must never be enabled in production.
+ *
+ * See `docs/architecture/testing/mbed-crypto-invasive-testing.md` for more
+ * information.
+ *
+ * Uncomment to enable invasive tests.
+ */
+//#define MBEDTLS_TEST_HOOKS
+
+/**
  * \def MBEDTLS_THREADING_ALT
  *
  * Provide your own alternate threading implementation.
diff --git a/library/common.h b/library/common.h
new file mode 100644
index 0000000..ba2c52e
--- /dev/null
+++ b/library/common.h
@@ -0,0 +1,55 @@
+/**
+ * \file common.h
+ *
+ * \brief Utility macros for internal use in the library
+ */
+/*
+ *  Copyright (C) 2019, ARM Limited, All Rights Reserved
+ *  SPDX-License-Identifier: Apache-2.0
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may
+ *  not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ *  This file is part of mbed TLS (https://tls.mbed.org)
+ */
+
+#ifndef MBEDTLS_LIBRARY_COMMON_H
+#define MBEDTLS_LIBRARY_COMMON_H
+
+#if defined(MBEDTLS_CONFIG_FILE)
+#include MBEDTLS_CONFIG_FILE
+#else
+#include "mbedtls/config.h"
+#endif
+
+/** Helper to define a function as static except when building invasive tests.
+ *
+ * If a function is only used inside its own source file and should be
+ * declared `static` to allow the compiler to optimize for code size,
+ * but that function has unit tests, define it with
+ * ```
+ * MBEDTLS_STATIC_TESTABLE int mbedtls_foo(...) { ... }
+ * ```
+ * and declare it in a header in the `library/` directory with
+ * ```
+ * #if defined(MBEDTLS_TEST_HOOKS)
+ * int mbedtls_foo(...);
+ * #endif
+ * ```
+ */
+#if defined(MBEDTLS_TEST_HOOKS)
+#define MBEDTLS_STATIC_TESTABLE
+#else
+#define MBEDTLS_STATIC_TESTABLE static
+#endif
+
+#endif /* MBEDTLS_LIBRARY_COMMON_H */
diff --git a/library/version_features.c b/library/version_features.c
index d16ad1b..7ecde21 100644
--- a/library/version_features.c
+++ b/library/version_features.c
@@ -555,6 +555,9 @@
 #if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH)
     "MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH",
 #endif /* MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH */
+#if defined(MBEDTLS_TEST_HOOKS)
+    "MBEDTLS_TEST_HOOKS",
+#endif /* MBEDTLS_TEST_HOOKS */
 #if defined(MBEDTLS_THREADING_ALT)
     "MBEDTLS_THREADING_ALT",
 #endif /* MBEDTLS_THREADING_ALT */
diff --git a/programs/pkey/rsa_priv.txt b/programs/pkey/rsa_priv.txt
index 22c37fe..254fcf8 100644
--- a/programs/pkey/rsa_priv.txt
+++ b/programs/pkey/rsa_priv.txt
@@ -1,8 +1,8 @@
-N = A1D46FBA2318F8DCEF16C280948B1CF27966B9B47225ED2989F8D74B45BD36049C0AAB5AD0FF003553BA843C8E12782FC5873BB89A3DC84B883D25666CD22BF3ACD5B675969F8BEBFBCAC93FDD927C7442B178B10D1DFF9398E52316AAE0AF74E594650BDC3C670241D418684593CDA1A7B9DC4F20D2FDC6F66344074003E211
-E = 010001
-D = 589552BB4F2F023ADDDD5586D0C8FD857512D82080436678D07F984A29D892D31F1F7000FC5A39A0F73E27D885E47249A4148C8A5653EF69F91F8F736BA9F84841C2D99CD8C24DE8B72B5C9BE0EDBE23F93D731749FEA9CFB4A48DD2B7F35A2703E74AA2D4DB7DE9CEEA7D763AF0ADA7AC176C4E9A22C4CDA65CEC0C65964401
-P = CD083568D2D46C44C40C1FA0101AF2155E59C70B08423112AF0C1202514BBA5210765E29FF13036F56C7495894D80CF8C3BAEE2839BACBB0B86F6A2965F60DB1
-Q = CA0EEEA5E710E8E9811A6B846399420E3AE4A4C16647E426DDF8BBBCB11CD3F35CE2E4B6BCAD07AE2C0EC2ECBFCC601B207CDD77B5673E16382B1130BF465261
-DP = 0D0E21C07BF434B4A83B116472C2147A11D8EB98A33CFBBCF1D275EF19D815941622435AAF3839B6C432CA53CE9E772CFBE1923A937A766FD93E96E6EDEC1DF1
-DQ = 269CEBE6305DFEE4809377F078C814E37B45AE6677114DFC4F76F5097E1F3031D592567AC55B9B98213B40ECD54A4D2361F5FAACA1B1F51F71E4690893C4F081
-QP = 97AC5BB885ABCA314375E9E4DB1BA4B2218C90619F61BD474F5785075ECA81750A735199A8C191FE2D3355E7CF601A70E5CABDE0E02C2538BB9FB4871540B3C1
+N = A1D46FBA2318F8DCEF16C280948B1CF27966B9B47225ED2989F8D74B45BD36049C0AAB5AD0FF003553BA843C8E12782FC5873BB89A3DC84B883D25666CD22BF3ACD5B675969F8BEBFBCAC93FDD927C7442B178B10D1DFF9398E52316AAE0AF74E594650BDC3C670241D418684593CDA1A7B9DC4F20D2FDC6F66344074003E211
+E = 010001
+D = 589552BB4F2F023ADDDD5586D0C8FD857512D82080436678D07F984A29D892D31F1F7000FC5A39A0F73E27D885E47249A4148C8A5653EF69F91F8F736BA9F84841C2D99CD8C24DE8B72B5C9BE0EDBE23F93D731749FEA9CFB4A48DD2B7F35A2703E74AA2D4DB7DE9CEEA7D763AF0ADA7AC176C4E9A22C4CDA65CEC0C65964401
+P = CD083568D2D46C44C40C1FA0101AF2155E59C70B08423112AF0C1202514BBA5210765E29FF13036F56C7495894D80CF8C3BAEE2839BACBB0B86F6A2965F60DB1
+Q = CA0EEEA5E710E8E9811A6B846399420E3AE4A4C16647E426DDF8BBBCB11CD3F35CE2E4B6BCAD07AE2C0EC2ECBFCC601B207CDD77B5673E16382B1130BF465261
+DP = 0D0E21C07BF434B4A83B116472C2147A11D8EB98A33CFBBCF1D275EF19D815941622435AAF3839B6C432CA53CE9E772CFBE1923A937A766FD93E96E6EDEC1DF1
+DQ = 269CEBE6305DFEE4809377F078C814E37B45AE6677114DFC4F76F5097E1F3031D592567AC55B9B98213B40ECD54A4D2361F5FAACA1B1F51F71E4690893C4F081
+QP = 97AC5BB885ABCA314375E9E4DB1BA4B2218C90619F61BD474F5785075ECA81750A735199A8C191FE2D3355E7CF601A70E5CABDE0E02C2538BB9FB4871540B3C1
diff --git a/programs/pkey/rsa_pub.txt b/programs/pkey/rsa_pub.txt
index 2c6d313..1e7ae0c 100644
--- a/programs/pkey/rsa_pub.txt
+++ b/programs/pkey/rsa_pub.txt
@@ -1,2 +1,2 @@
-N = A1D46FBA2318F8DCEF16C280948B1CF27966B9B47225ED2989F8D74B45BD36049C0AAB5AD0FF003553BA843C8E12782FC5873BB89A3DC84B883D25666CD22BF3ACD5B675969F8BEBFBCAC93FDD927C7442B178B10D1DFF9398E52316AAE0AF74E594650BDC3C670241D418684593CDA1A7B9DC4F20D2FDC6F66344074003E211
-E = 010001
+N = A1D46FBA2318F8DCEF16C280948B1CF27966B9B47225ED2989F8D74B45BD36049C0AAB5AD0FF003553BA843C8E12782FC5873BB89A3DC84B883D25666CD22BF3ACD5B675969F8BEBFBCAC93FDD927C7442B178B10D1DFF9398E52316AAE0AF74E594650BDC3C670241D418684593CDA1A7B9DC4F20D2FDC6F66344074003E211
+E = 010001
diff --git a/programs/psa/CMakeLists.txt b/programs/psa/CMakeLists.txt
index c80043b..201f987 100644
--- a/programs/psa/CMakeLists.txt
+++ b/programs/psa/CMakeLists.txt
@@ -5,11 +5,12 @@
 target_link_libraries(key_ladder_demo mbedtls)
 
 add_executable(psa_constant_names psa_constant_names.c)
+target_include_directories(psa_constant_names PRIVATE ${CMAKE_CURRENT_BINARY_DIR})
 target_link_libraries(psa_constant_names mbedtls)
 
 add_custom_target(
     psa_constant_names_generated
-    COMMAND ${PYTHON_EXECUTABLE} scripts/generate_psa_constants.py
+    COMMAND ${PYTHON_EXECUTABLE} scripts/generate_psa_constants.py ${CMAKE_CURRENT_BINARY_DIR}
     WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/../../
 )
 add_dependencies(psa_constant_names psa_constant_names_generated)
diff --git a/programs/test/query_config.c b/programs/test/query_config.c
index bd3f638..27c5d0d 100644
--- a/programs/test/query_config.c
+++ b/programs/test/query_config.c
@@ -1522,6 +1522,14 @@
     }
 #endif /* MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH */
 
+#if defined(MBEDTLS_TEST_HOOKS)
+    if( strcmp( "MBEDTLS_TEST_HOOKS", config ) == 0 )
+    {
+        MACRO_EXPANSION_TO_STR( MBEDTLS_TEST_HOOKS );
+        return( 0 );
+    }
+#endif /* MBEDTLS_TEST_HOOKS */
+
 #if defined(MBEDTLS_THREADING_ALT)
     if( strcmp( "MBEDTLS_THREADING_ALT", config ) == 0 )
     {
diff --git a/scripts/generate_psa_constants.py b/scripts/generate_psa_constants.py
index c6bd9b6..175cd9f 100755
--- a/scripts/generate_psa_constants.py
+++ b/scripts/generate_psa_constants.py
@@ -1,13 +1,19 @@
 #!/usr/bin/env python3
 
-"""Generate programs/psa/psa_constant_names_generated.c
+"""Generate psa_constant_names_generated.c
 which is included by programs/psa/psa_constant_names.c.
 The code generated by this module is only meant to be used in the context
 of that program.
+
+An argument passed to this script will modify the output directory where the
+file is written:
+* by default (no arguments passed): writes to programs/psa/
+* OUTPUT_FILE_DIR passed: writes to OUTPUT_FILE_DIR/
 """
 
 import os
 import re
+import sys
 
 OUTPUT_TEMPLATE = '''\
 /* Automatically generated by generate_psa_constant.py. DO NOT EDIT. */
@@ -395,6 +401,8 @@
 if __name__ == '__main__':
     if not os.path.isdir('programs') and os.path.isdir('../programs'):
         os.chdir('..')
+    # Allow to change the directory where psa_constant_names_generated.c is written to.
+    OUTPUT_FILE_DIR = sys.argv[1] if len(sys.argv) == 2 else "programs/psa"
     generate_psa_constants(['include/psa/crypto_values.h',
                             'include/psa/crypto_extra.h'],
-                           'programs/psa/psa_constant_names_generated.c')
+                           OUTPUT_FILE_DIR + '/psa_constant_names_generated.c')
diff --git a/tests/data_files/base64/cli_ciphersuite.txt b/tests/data_files/base64/cli_ciphersuite.txt
index 432978d..bf36470 100644
--- a/tests/data_files/base64/cli_ciphersuite.txt
+++ b/tests/data_files/base64/cli_ciphersuite.txt
@@ -1,2 +1,2 @@
 // TLS-RSA-WITH-AES-256-CCM-8
-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
\ No newline at end of file
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
diff --git a/tests/data_files/base64/cli_def.txt b/tests/data_files/base64/cli_def.txt
index ee47905..793da2b 100644
--- a/tests/data_files/base64/cli_def.txt
+++ b/tests/data_files/base64/cli_def.txt
@@ -1,2 +1,2 @@
 // Client context with default MbedTLS configuration
-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
\ No newline at end of file
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
diff --git a/tests/data_files/base64/cli_min_cfg.txt b/tests/data_files/base64/cli_min_cfg.txt
index 8c1ef88..152b474 100644
--- a/tests/data_files/base64/cli_min_cfg.txt
+++ b/tests/data_files/base64/cli_min_cfg.txt
@@ -1,2 +1,2 @@
 // Minimal configuration
-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
\ No newline at end of file
+AhUAAAMAAAAAAAOeAAAAAF6LZlLMqAAgUGktPmpSPbzRPipeCpYJtp5SNIIjTr3R121WF9AeWN4tmKbRhhv+yPMjY0yWPrHLy7lLLhwNFBwCD6eQ0ULZZ15Fi2Rhae/4ZkAR0BN2iCMAAAAAAAM7MIIDNzCCAh+gAwIBAgIBAjANBgkqhkiG9w0BAQsFADA7MQswCQYDVQQGEwJOTDERMA8GA1UECgwIUG9sYXJTU0wxGTAXBgNVBAMMEFBvbGFyU1NMIFRlc3QgQ0EwHhcNMTkwMjEwMTQ0NDA2WhcNMjkwMjEwMTQ0NDA2WjA0MQswCQYDVQQGEwJOTDERMA8GA1UECgwIUG9sYXJTU0wxEjAQBgNVBAMMCWxvY2FsaG9zdDCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAMFNo93nzR3RBNdJcriZrA545Do8Ss86ExbQWuTNowCIp+4ea5anUrSQ7y1yej4kmvy2NKwk9XfgJmSMnLAofaHa6ozmyRyWvP7BBFKzNtSj+uGxdtiQwWG0ZlI2oiZTqqt0Xgd9GYLbKtgfoNkNHC1JZvdbJXNG6AuKT2kMtQCQ4dqCEGZ9rlQri2V5kaHiYcPNQEkI7mgM8YuG0ka/0LiqEQMef1aoGh5EGA8PhYvai0Re4hjGYi/HZo36Xdh98yeJKQHFkA4/J/EwyEoO79bex8cna8cFPXrEAjyaHT4P6DSYW8tzS1KW2BGiLICIaTla0w+w3lkvEcf36hIBMJcCAwEAAaNNMEswCQYDVR0TBAIwADAdBgNVHQ4EFgQUpQXoZLjc32APUBJNYKhkr02LQ5MwHwYDVR0jBBgwFoAUtFrkpbPe0lL2udWmlQ/rPrzH/f8wDQYJKoZIhvcNAQELBQADggEBAC465FJhPqel7zJngHIHJrqj/wVAxGAFOTF396XKATGAp+HRCqJ81Ry60CNK1jDzk8dv6M6UHoS7RIFiM/9rXQCbJfiPD5xMTejZp5n5UYHAmxsxDaazfA5FuBhkfokKK6jD4Eq91C94xGKb6X4/VkaPF7cqoBBw/bHxawXc0UEPjqayiBpCYU/rJoVZgLqFVP7Px3sva1nOrNx8rPPI1hJ+ZOg8maiPTxHZnBVLakSSLQy/sWeWyazO1RnrbxjrbgQtYKz0e3nwGpu1w13vfckFmUSBhHXH7AAS/HpKC4IH7G2GAk3+n8iSSN71sZzpxonQwVbopMZqLmbBm/7WPLdei2ZSQwLppTqzs7kieOYQR6DjJItmQ0N/RS3+zTr9wF6LZlL6SQpLewmyja7jXyOWuUqJ6zJQ5b7FfA4PxthlAAABAAAAAAACAAA=
diff --git a/tests/data_files/base64/cli_no_keep_cert.txt b/tests/data_files/base64/cli_no_keep_cert.txt
index 5272a7c..76d0c3c 100644
--- a/tests/data_files/base64/cli_no_keep_cert.txt
+++ b/tests/data_files/base64/cli_no_keep_cert.txt
@@ -1,2 +1,2 @@
 // Without MBEDTLS_SSL_KEEP_PEER_CERTIFICATE
-AhUAAAMAAAAAAACCAAAAAF6MKhTMqAAgSKCqXrcrmjqOBpxsGO3itQB09YgsSJwXmZB12QlB+wwhiof0mzAN0hupkLxu4Yyc9SgyFoEDPKJk8TiRo8bO2rkEfPItB5lUFkJwzdeuGVMAAAAABiCAy8MWqlj4vnIv0mswJvB35hyCOYWZ+fcZ6t5LzZgXPl6MKhRs69b+psiGUAo8OK3fU4HKOHNdi36tk22+ScctXowqFEyvzGcvbtI0VfWLKlOlDv+SwC08ZdCNa+RBZ/AAAAEAAAAAAAIAAA==
\ No newline at end of file
+AhUAAAMAAAAAAACCAAAAAF6MKhTMqAAgSKCqXrcrmjqOBpxsGO3itQB09YgsSJwXmZB12QlB+wwhiof0mzAN0hupkLxu4Yyc9SgyFoEDPKJk8TiRo8bO2rkEfPItB5lUFkJwzdeuGVMAAAAABiCAy8MWqlj4vnIv0mswJvB35hyCOYWZ+fcZ6t5LzZgXPl6MKhRs69b+psiGUAo8OK3fU4HKOHNdi36tk22+ScctXowqFEyvzGcvbtI0VfWLKlOlDv+SwC08ZdCNa+RBZ/AAAAEAAAAAAAIAAA==
diff --git a/tests/data_files/base64/cli_no_mfl.txt b/tests/data_files/base64/cli_no_mfl.txt
index 5c1dfd9..0d06891 100644
--- a/tests/data_files/base64/cli_no_mfl.txt
+++ b/tests/data_files/base64/cli_no_mfl.txt
@@ -1,2 +1,2 @@
 // Without MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
-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
\ No newline at end of file
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
diff --git a/tests/data_files/base64/cli_no_packing.txt b/tests/data_files/base64/cli_no_packing.txt
index 068276b..112b1b6 100644
--- a/tests/data_files/base64/cli_no_packing.txt
+++ b/tests/data_files/base64/cli_no_packing.txt
@@ -1,2 +1,2 @@
 // Without DTLS packing
-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
\ No newline at end of file
+AhUAAH8AAA4AAAQ8AAAAAF6LCM/MqAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACfl0tXNmshIQEqiEflQGnVUKkIFl1on/Mu0pjWes3XwQgdwmy9xMzpVyYU5gBOsOEAAAAAAAM7MIIDNzCCAh+gAwIBAgIBAjANBgkqhkiG9w0BAQsFADA7MQswCQYDVQQGEwJOTDERMA8GA1UECgwIUG9sYXJTU0wxGTAXBgNVBAMMEFBvbGFyU1NMIFRlc3QgQ0EwHhcNMTkwMjEwMTQ0NDA2WhcNMjkwMjEwMTQ0NDA2WjA0MQswCQYDVQQGEwJOTDERMA8GA1UECgwIUG9sYXJTU0wxEjAQBgNVBAMMCWxvY2FsaG9zdDCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAMFNo93nzR3RBNdJcriZrA545Do8Ss86ExbQWuTNowCIp+4ea5anUrSQ7y1yej4kmvy2NKwk9XfgJmSMnLAofaHa6ozmyRyWvP7BBFKzNtSj+uGxdtiQwWG0ZlI2oiZTqqt0Xgd9GYLbKtgfoNkNHC1JZvdbJXNG6AuKT2kMtQCQ4dqCEGZ9rlQri2V5kaHiYcPNQEkI7mgM8YuG0ka/0LiqEQMef1aoGh5EGA8PhYvai0Re4hjGYi/HZo36Xdh98yeJKQHFkA4/J/EwyEoO79bex8cna8cFPXrEAjyaHT4P6DSYW8tzS1KW2BGiLICIaTla0w+w3lkvEcf36hIBMJcCAwEAAaNNMEswCQYDVR0TBAIwADAdBgNVHQ4EFgQUpQXoZLjc32APUBJNYKhkr02LQ5MwHwYDVR0jBBgwFoAUtFrkpbPe0lL2udWmlQ/rPrzH/f8wDQYJKoZIhvcNAQELBQADggEBAC465FJhPqel7zJngHIHJrqj/wVAxGAFOTF396XKATGAp+HRCqJ81Ry60CNK1jDzk8dv6M6UHoS7RIFiM/9rXQCbJfiPD5xMTejZp5n5UYHAmxsxDaazfA5FuBhkfokKK6jD4Eq91C94xGKb6X4/VkaPF7cqoBBw/bHxawXc0UEPjqayiBpCYU/rJoVZgLqFVP7Px3sva1nOrNx8rPPI1hJ+ZOg8maiPTxHZnBVLakSSLQy/sWeWyazO1RnrbxjrbgQtYKz0e3nwGpu1w13vfckFmUSBhHXH7AAS/HpKC4IH7G2GAk3+n8iSSN71sZzpxonQwVbopMZqLmbBm/7WPLcAAJRTvlE7NmNNLDESUBoGC+K2AHIKA+/lhdRVF4YcMvvqCBYFB5tj0oyCikftfjNbvjl9YPGqcRXk664YieWv/pz8U1FOENipbjXF9lFhgedG2Xanh/2FwHX5txYiHIJxJeLEKCXp5Sjt9XBvQsrryxLyX9l+zkLKm7bCAcrfk4h/YoqxecAI63isG9vnrS7o07iD/3mOAAFRgAAAAF6LCM+1uRpyaoyfzuNGBJK9DgBWIWtrPpu7KM8qsC/FXosIz/YIPhveZ8Z4IR0g/McAMQwzQoK5tScSE0DD3BwAAAAAAAAAAAAAAAEAAAAAAAAAAwEAAQAAAAAAAgAAAA==
diff --git a/tests/data_files/base64/mfl_1024.txt b/tests/data_files/base64/mfl_1024.txt
index 58dbe5f..b56044a 100644
--- a/tests/data_files/base64/mfl_1024.txt
+++ b/tests/data_files/base64/mfl_1024.txt
@@ -1,2 +1,2 @@
 // MFL=1024
-AhUAAH8AAA4AAABtAAAAAF6K+GLMqAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACHeeQKPVt9RpB8nLTB6C2AhxRzB0r/OBbXbMPm6jb1rkR+qrXZAUFRvGfGxlqqGWwAAACAAAAAAAAAAAAAAAIAAV6K+GJIXNnpKTr9HZQW6WEH7YSYhhRRqOO6xvf8QL6/Xor4YhOxOJYk23w3AwDvVAofeWnVAfJnExe5ipdSxnAAAAAAAAAAAAAAAAEAAAAAAAAAAwAAAQAAAAAAAgAAAA===
\ No newline at end of file
+AhUAAH8AAA4AAABtAAAAAF6K+GLMqAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACHeeQKPVt9RpB8nLTB6C2AhxRzB0r/OBbXbMPm6jb1rkR+qrXZAUFRvGfGxlqqGWwAAACAAAAAAAAAAAAAAAIAAV6K+GJIXNnpKTr9HZQW6WEH7YSYhhRRqOO6xvf8QL6/Xor4YhOxOJYk23w3AwDvVAofeWnVAfJnExe5ipdSxnAAAAAAAAAAAAAAAAEAAAAAAAAAAwAAAQAAAAAAAgAAAA===
diff --git a/tests/data_files/base64/mtu_10000.txt b/tests/data_files/base64/mtu_10000.txt
index dc7c975..6764539 100644
--- a/tests/data_files/base64/mtu_10000.txt
+++ b/tests/data_files/base64/mtu_10000.txt
@@ -1,2 +1,2 @@
 // MTU=10000
-AhUAAH8AAA4AAABtAAAAAF6LDkzMqAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABx06kxYooMLGPyUMoB46EF2zTJzmZEM4le5aKihcHpFEfgrX/eWQZFWa7cak79ihwAAACAAAAAAAAAAAAAAAAAAV6LDkz9bigMk9q0WiDmgYhX8ppbfgbtMCfruvVQNiFWXosOTJ3R2+J+TaSChmjtS8sD+y1Zruhe/SJE7y9D+5YAAAAAAAAAAAAAAAEAAAAAAAAAAwAAAQAAAAAAAicQAA==
\ No newline at end of file
+AhUAAH8AAA4AAABtAAAAAF6LDkzMqAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABx06kxYooMLGPyUMoB46EF2zTJzmZEM4le5aKihcHpFEfgrX/eWQZFWa7cak79ihwAAACAAAAAAAAAAAAAAAAAAV6LDkz9bigMk9q0WiDmgYhX8ppbfgbtMCfruvVQNiFWXosOTJ3R2+J+TaSChmjtS8sD+y1Zruhe/SJE7y9D+5YAAAAAAAAAAAAAAAEAAAAAAAAAAwAAAQAAAAAAAicQAA==
diff --git a/tests/data_files/base64/srv_ciphersuite.txt b/tests/data_files/base64/srv_ciphersuite.txt
index 5ddca63..7e93906 100644
--- a/tests/data_files/base64/srv_ciphersuite.txt
+++ b/tests/data_files/base64/srv_ciphersuite.txt
@@ -1,2 +1,2 @@
 // TLS-RSA-WITH-AES-256-CCM-8
-AhUAAH8AAA4AAABtAAAAAF6K4ynAoQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAADLBIQUrrPh7jxYz9e55cJvfpOkuBf2ZiVovlYa1Dkwbimp5q/CoWIn48C0x3Yj6N0AAACAAAAAAAAAAAAAAAAAAV6K4yksMvMV19qRq+eNokGn0j9Q5tjE88EK8jfM7gksXorjKR6zhXhttFGIFkNNAmmKuuDQGVmX1yCoHiJFonUAAAAAAAAAAAAAAAEAAAAAAAAAAwAAAQAAAAAAAgAAAA==
\ No newline at end of file
+AhUAAH8AAA4AAABtAAAAAF6K4ynAoQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAADLBIQUrrPh7jxYz9e55cJvfpOkuBf2ZiVovlYa1Dkwbimp5q/CoWIn48C0x3Yj6N0AAACAAAAAAAAAAAAAAAAAAV6K4yksMvMV19qRq+eNokGn0j9Q5tjE88EK8jfM7gksXorjKR6zhXhttFGIFkNNAmmKuuDQGVmX1yCoHiJFonUAAAAAAAAAAAAAAAEAAAAAAAAAAwAAAQAAAAAAAgAAAA==
diff --git a/tests/data_files/base64/srv_min_cfg.txt b/tests/data_files/base64/srv_min_cfg.txt
index 8be0288..77272f5 100644
--- a/tests/data_files/base64/srv_min_cfg.txt
+++ b/tests/data_files/base64/srv_min_cfg.txt
@@ -1,2 +1,2 @@
 // Minimal configuration
-AhUAAAMAAAAAAABjAAAAAF6LZlLMqAAgUGktPmpSPbzRPipeCpYJtp5SNIIjTr3R121WF9AeWN4tmKbRhhv+yPMjY0yWPrHLy7lLLhwNFBwCD6eQ0ULZZ15Fi2Rhae/4ZkAR0BN2iCMAAACAAAAAXotmUkMC6aU6s7O5InjmEEeg4ySLZkNDf0Ut/s06/cBei2ZS+kkKS3sJso2u418jlrlKiesyUOW+xXwOD8bYZQAAAQAAAAAAAgAA
\ No newline at end of file
+AhUAAAMAAAAAAABjAAAAAF6LZlLMqAAgUGktPmpSPbzRPipeCpYJtp5SNIIjTr3R121WF9AeWN4tmKbRhhv+yPMjY0yWPrHLy7lLLhwNFBwCD6eQ0ULZZ15Fi2Rhae/4ZkAR0BN2iCMAAACAAAAAXotmUkMC6aU6s7O5InjmEEeg4ySLZkNDf0Ut/s06/cBei2ZS+kkKS3sJso2u418jlrlKiesyUOW+xXwOD8bYZQAAAQAAAAAAAgAA
diff --git a/tests/data_files/base64/srv_no_alpn.txt b/tests/data_files/base64/srv_no_alpn.txt
index afc51f9..10ddd0c 100644
--- a/tests/data_files/base64/srv_no_alpn.txt
+++ b/tests/data_files/base64/srv_no_alpn.txt
@@ -1,2 +1,2 @@
 // Without MBEDTLS_SSL_ALPN
-AhUAAH8AAAYAAABtAAAAAF6LDSzMqAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB1lCUO8B/805UzCOLZzWDAEA8anfLpbuWTrnFSR2puZktvEiR8nXdATN0yKS94oSAAAACAAAAAAAAAAAAAAAAAAV6LDSwWt0QWgmNg4Zv2yYhf4Pdexpi/QTIqWyD2AQVjXosNLLK1vz/upFHrJlizjH5uSBUJCpQZJczrBgxBmGoAAAAAAAAAAAAAAAEAAAAAAAAAAwAAAQAAAAAAAgAA
\ No newline at end of file
+AhUAAH8AAAYAAABtAAAAAF6LDSzMqAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB1lCUO8B/805UzCOLZzWDAEA8anfLpbuWTrnFSR2puZktvEiR8nXdATN0yKS94oSAAAACAAAAAAAAAAAAAAAAAAV6LDSwWt0QWgmNg4Zv2yYhf4Pdexpi/QTIqWyD2AQVjXosNLLK1vz/upFHrJlizjH5uSBUJCpQZJczrBgxBmGoAAAAAAAAAAAAAAAEAAAAAAAAAAwAAAQAAAAAAAgAA
diff --git a/tests/data_files/base64/srv_no_mfl.txt b/tests/data_files/base64/srv_no_mfl.txt
index c684ec7..e254403 100644
--- a/tests/data_files/base64/srv_no_mfl.txt
+++ b/tests/data_files/base64/srv_no_mfl.txt
@@ -1,2 +1,2 @@
 // Without MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
-AhUAAHcAAA4AAABsAAAAAF6LDLPMqAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA0fzGzO1ysljMgZr4gduigvRXr2AK5X8j8c6vHTOpc2ncFS3UN2ojwD2tOaM3+/XIAAACAAAAAAAAAAAAAAAABXosMs1xs+Mj8BIL6v01qtHWV7w+psxGwLctaGSSL0aZeiwyzskPeDCL0isOzh+JoPgzS/mVtMc0GykGpZaFBugAAAAAAAAAAAAAAAQAAAAAAAAADAAABAAAAAAACAAAA
\ No newline at end of file
+AhUAAHcAAA4AAABsAAAAAF6LDLPMqAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA0fzGzO1ysljMgZr4gduigvRXr2AK5X8j8c6vHTOpc2ncFS3UN2ojwD2tOaM3+/XIAAACAAAAAAAAAAAAAAAABXosMs1xs+Mj8BIL6v01qtHWV7w+psxGwLctaGSSL0aZeiwyzskPeDCL0isOzh+JoPgzS/mVtMc0GykGpZaFBugAAAAAAAAAAAAAAAQAAAAAAAAADAAABAAAAAAACAAAA
diff --git a/tests/data_files/base64/v2.19.1.txt b/tests/data_files/base64/v2.19.1.txt
index b910e33..c07bd9d 100644
--- a/tests/data_files/base64/v2.19.1.txt
+++ b/tests/data_files/base64/v2.19.1.txt
@@ -1,2 +1,2 @@
-// Context creaded by MbedTLS v.2.19.1 
-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
\ No newline at end of file
+// Context creaded by MbedTLS v.2.19.1
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
diff --git a/tests/data_files/bitstring-in-dn.pem b/tests/data_files/bitstring-in-dn.pem
index 1a98aa3..c50bd66 100644
--- a/tests/data_files/bitstring-in-dn.pem
+++ b/tests/data_files/bitstring-in-dn.pem
@@ -1,51 +1,51 @@
------BEGIN CERTIFICATE-----
-MIIEATCCAumgAwIBAgIBAjANBgkqhkiG9w0BAQUFADBxMRMwEQYDVQQDDApUZXN0
-IENBIDAxMREwDwYDVQQIDAhFY25pdm9ycDELMAkGA1UEBhMCWFgxHjAcBgkqhkiG
-9w0BCQEWD3RjYUBleGFtcGxlLmNvbTEaMBgGA1UECgwRVGVzdCBDQSBBdXRob3Jp
-dHkwHhcNMTUwMzExMTIwNjUxWhcNMjUwMzA4MTIwNjUxWjCBmzELMAkGA1UEBhMC
-WFgxDDAKBgNVBAoMA3RjYTERMA8GA1UECAwIRWNuaXZvcnAxDDAKBgNVBAsMA1RD
-QTEPMA0GA1UEAwwGQ2xpZW50MSEwHwYJKoZIhvcNAQkBFhJjbGllbnRAZXhhbXBs
-ZS5jb20xEzARBgNVBAUTCjcxMDEwMTIyNTUxFDASBgNVBC0DCwA3MTAxMDEyMjU1
-MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnQS0JLb8Dqy8V2mszkWk
-V8c/NPQcG3ivueXZHqOT9JTiPqrigGcLHtlmlaJ0aUUxix7q60aOds041TFyeknT
-SUFYY4ppOhiP+fOpWKPv4ZMwhSI2XzcgYhQSNHV0lIG1we9RAAfumomDMq7oMJhb
-EGf0ihibbwZXPUwBlm10GaB4K93PNY8Bz4ekBxzQ1WJkQ5LGsQnVZSuLnvp5dWSe
-J2axxyY4hPXR30jzEyZvy4kv4nzAu5lqZ5XKLrRO4TKwZrtr+CCPVkPJRE36rWYt
-tQaJEEpNOo0ZPpTtG6F8/tGh5r8jFx/f6wG+nyANJJ98kEP8i6TPjRrg+697mLcd
-iQIDAQABo3kwdzAJBgNVHRMEAjAAMDYGA1UdHwQvMC0wK6ApoCeGJWh0dHA6Ly9j
-cmwuZXhhbXBsZS5jb20vdGVzdF9jYV8wMS5jcmwwEwYDVR0lBAwwCgYIKwYBBQUH
-AwIwHQYDVR0RBBYwFIESY2xpZW50QGV4YW1wbGUuY29tMA0GCSqGSIb3DQEBBQUA
-A4IBAQBySELCnU8/PtGIG3dwhJENOSU5R7w8jpRXxHCuSBR+W6nuUCISz+z+EdF/
-A7AOJDASuS+4gkrSSmQhGFpf7E5VbF8trVZhLAZrXqKMcUreKH6v0I8MAUXmIs3G
-tqiBGf7pSYJN9DvVOOgANjdy6THuUzYv5qSvBZ4pNYEfHSlMNrV7niynd8dgPOML
-pA7GUfv5k2mMkMbSD15pTMgcavrBKYgyqcvF1C3qghfoL5+i38H8sKzF8hy7wHtE
-ESHtBq20RYA3m0UcA0e64GcanO2Ps/AQVBc7qMeHbqnqj3uUhtTkQcMUWnMgy1NR
-5RbzoLMOxq7hoOCyIaQeM/wgxeGE
------END CERTIFICATE-----
------BEGIN RSA PRIVATE KEY-----
-MIIEpAIBAAKCAQEAnQS0JLb8Dqy8V2mszkWkV8c/NPQcG3ivueXZHqOT9JTiPqri
-gGcLHtlmlaJ0aUUxix7q60aOds041TFyeknTSUFYY4ppOhiP+fOpWKPv4ZMwhSI2
-XzcgYhQSNHV0lIG1we9RAAfumomDMq7oMJhbEGf0ihibbwZXPUwBlm10GaB4K93P
-NY8Bz4ekBxzQ1WJkQ5LGsQnVZSuLnvp5dWSeJ2axxyY4hPXR30jzEyZvy4kv4nzA
-u5lqZ5XKLrRO4TKwZrtr+CCPVkPJRE36rWYttQaJEEpNOo0ZPpTtG6F8/tGh5r8j
-Fx/f6wG+nyANJJ98kEP8i6TPjRrg+697mLcdiQIDAQABAoIBAF7i3MnjGmbz080v
-OxJb23iAG54wdlvTjr3UPGTbjSmcXyxnsADQRFQcJHYAekCzY8EiqewL80OvuMx8
-2SU1P81hA70Dg5tsBHWT3Z6HUwsKG6QYjKr1cUhTwLyazhyAVgogSN6v7GzO9M3I
-DOBw8Xb0mz5oqGVre4S7TapN8n8ZG5oWm0XKGACXy0KbzY0KvWdkUzumFQ8X/ARE
-FsWyu+O69EbMqZRUKu45SrcubsdVGjOwseZHkmp5V6pc6Q/OrTHZqXJtDva5UIRq
-+Lof5scy9jiwwRnM/klvh23mz0ySU4YA3645m5KqyWR4YJCR1MnMANmXUSeYWfYz
-19+R1gECgYEAzm83lI7eIhTH38H0/jFpf3R7vNjPX3TR5waa4EXsCxhTOpoL89mR
-iNmzH0aOC4OR8rz/9PCnwmtH1lyQ4r/RokBmCp3pBxeWSlenFfV3rLCeEDo0Q/OL
-SX5DL4IbZD0VmNDt606WS7AEv93GhpN03Anw6kgHQUm1l030PR9DYZECgYEAwrgO
-/RyB/Ehw7smlysZb2sn1lvd6z8fg+pcu8ZNRKODaYCCOb8p1lnHrnIQdEmjhlmVp
-HAEuJ5jxCb+lyruV+dlx+0W/p6lHtKr0iBHG8EFkHnjN6Y+59Qu0HfSm0pZw7Ftr
-QcUDPuDJkTVUAvrZqciWlwzTWCC9KYXtasT+AHkCgYEAnP80dAUbpyvKvr/RxShr
-JYW/PWZegChmIp+BViOXWvDLC3xwrqm+5yc59QVBrjwH2WYn+26zB0dzwPFxNyHP
-GuiDMnvZ54zmve9foXGn7Gv+KjU53pvwSJqAGjeHAXr7W9c5uoVwBGv/kLPn8h1e
-+KGO2X6iFeMq+cFNiNan9iECgYBj+oGnsKWFVeS2ls8LyMGNGzmAZF2opiZ8RHgU
-DeIULS+zP8Qi3j92GdQyLxuGQlfiEvvfJzP9nOfWa5LC/4JIIUAHFo8LlT1+JHEe
-FJKi9dBkXP7NN8DxcyruXpnxctFUarQttuytslmMt2cFiKuOI7I+qJUzoMu/sEZx
-FeidcQKBgQCuralmtbl4nxjn3aR/ZgFTAKCL9WaJPh5hFJ9q4UuWxJdBX5z3Ey3/
-70ehLKYPumjmZtXynzz4BTWj1W9X+tgj/499uzV6LdQERGjT6WVy8xR9RELWW0an
-N9N1IAc4qTSjbI4EIMwMBSAoFfCux/jfDkG4g+RDnpV92sqxz2CtKg==
------END RSA PRIVATE KEY-----
\ No newline at end of file
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
+-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----
diff --git a/tests/data_files/test-ca.server1.opensslconf b/tests/data_files/test-ca.server1.opensslconf
index 4a5072e..209b0ff 100644
--- a/tests/data_files/test-ca.server1.opensslconf
+++ b/tests/data_files/test-ca.server1.opensslconf
@@ -1,6 +1,6 @@
  [ ca ]
  default_ca             = test-ca
- 
+
  [ test-ca ]
  certificate            = test-ca.crt
  private_key            = test-ca.key
diff --git a/tests/scripts/all.sh b/tests/scripts/all.sh
index cbafe1d..bd41f4b 100755
--- a/tests/scripts/all.sh
+++ b/tests/scripts/all.sh
@@ -625,6 +625,18 @@
     record_status tests/scripts/check-files.py
 }
 
+component_check_changelog () {
+    msg "Check: changelog entries" # < 1s
+    rm -f ChangeLog.new
+    record_status scripts/assemble_changelog.py -o ChangeLog.new
+    if [ -e ChangeLog.new ]; then
+        # Show the diff for information. It isn't an error if the diff is
+        # non-empty.
+        diff -u ChangeLog ChangeLog.new || true
+        rm ChangeLog.new
+    fi
+}
+
 component_check_names () {
     msg "Check: declared and exported names (builds the library)" # < 3s
     record_status tests/scripts/check-names.sh -v
diff --git a/tests/scripts/check-files.py b/tests/scripts/check-files.py
index e8abd75..62b526a 100755
--- a/tests/scripts/check-files.py
+++ b/tests/scripts/check-files.py
@@ -14,6 +14,8 @@
 import argparse
 import logging
 import codecs
+import re
+import subprocess
 import sys
 
 
@@ -23,28 +25,48 @@
     To implement a checker that processes a file as a whole, inherit from
     this class and implement `check_file_for_issue` and define ``heading``.
 
-    ``files_exemptions``: files whose name ends with a string in this set
+    ``suffix_exemptions``: files whose name ends with a string in this set
      will not be checked.
 
+    ``path_exemptions``: files whose path (relative to the root of the source
+    tree) matches this regular expression will not be checked. This can be
+    ``None`` to match no path. Paths are normalized and converted to ``/``
+    separators before matching.
+
     ``heading``: human-readable description of the issue
     """
 
-    files_exemptions = frozenset()
+    suffix_exemptions = frozenset()
+    path_exemptions = None
     # heading must be defined in derived classes.
     # pylint: disable=no-member
 
     def __init__(self):
         self.files_with_issues = {}
 
+    @staticmethod
+    def normalize_path(filepath):
+        """Normalize ``filepath`` with / as the directory separator."""
+        filepath = os.path.normpath(filepath)
+        # On Windows, we may have backslashes to separate directories.
+        # We need slashes to match exemption lists.
+        seps = os.path.sep
+        if os.path.altsep is not None:
+            seps += os.path.altsep
+        return '/'.join(filepath.split(seps))
+
     def should_check_file(self, filepath):
         """Whether the given file name should be checked.
 
-        Files whose name ends with a string listed in ``self.files_exemptions``
-        will not be checked.
+        Files whose name ends with a string listed in ``self.suffix_exemptions``
+        or whose path matches ``self.path_exemptions`` will not be checked.
         """
-        for files_exemption in self.files_exemptions:
+        for files_exemption in self.suffix_exemptions:
             if filepath.endswith(files_exemption):
                 return False
+        if self.path_exemptions and \
+           re.match(self.path_exemptions, self.normalize_path(filepath)):
+            return False
         return True
 
     def check_file_for_issue(self, filepath):
@@ -73,6 +95,17 @@
                     logger.info(filename)
             logger.info("")
 
+BINARY_FILE_PATH_RE_LIST = [
+    r'docs/.*\.pdf\Z',
+    r'programs/fuzz/corpuses/[^.]+\Z',
+    r'tests/data_files/[^.]+\Z',
+    r'tests/data_files/.*\.(crt|csr|db|der|key|pubkey)\Z',
+    r'tests/data_files/.*\.req\.[^/]+\Z',
+    r'tests/data_files/.*malformed[^/]+\Z',
+    r'tests/data_files/format_pkcs12\.fmt\Z',
+]
+BINARY_FILE_PATH_RE = re.compile('|'.join(BINARY_FILE_PATH_RE_LIST))
+
 class LineIssueTracker(FileIssueTracker):
     """Base class for line-by-line issue tracking.
 
@@ -80,6 +113,9 @@
     this class and implement `line_with_issue`.
     """
 
+    # Exclude binary files.
+    path_exemptions = BINARY_FILE_PATH_RE
+
     def issue_with_line(self, line, filepath):
         """Check the specified line for the issue that this class is for.
 
@@ -103,7 +139,7 @@
 
 def is_windows_file(filepath):
     _root, ext = os.path.splitext(filepath)
-    return ext in ('.bat', '.dsp', '.sln', '.vcxproj')
+    return ext in ('.bat', '.dsp', '.dsw', '.sln', '.vcxproj')
 
 
 class PermissionIssueTracker(FileIssueTracker):
@@ -126,9 +162,18 @@
 
     heading = "Missing newline at end of file:"
 
+    path_exemptions = BINARY_FILE_PATH_RE
+
     def check_file_for_issue(self, filepath):
         with open(filepath, "rb") as f:
-            if not f.read().endswith(b"\n"):
+            try:
+                f.seek(-1, 2)
+            except OSError:
+                # This script only works on regular files. If we can't seek
+                # 1 before the end, it means that this position is before
+                # the beginning of the file, i.e. that the file is empty.
+                return
+            if f.read(1) != b"\n":
                 self.files_with_issues[filepath] = None
 
 
@@ -138,7 +183,8 @@
 
     heading = "UTF-8 BOM present:"
 
-    files_exemptions = frozenset([".vcxproj", ".sln"])
+    suffix_exemptions = frozenset([".vcxproj", ".sln"])
+    path_exemptions = BINARY_FILE_PATH_RE
 
     def check_file_for_issue(self, filepath):
         with open(filepath, "rb") as f:
@@ -152,6 +198,8 @@
     heading = "Non-Unix line endings:"
 
     def should_check_file(self, filepath):
+        if not super().should_check_file(filepath):
+            return False
         return not is_windows_file(filepath)
 
     def issue_with_line(self, line, _filepath):
@@ -164,6 +212,8 @@
     heading = "Non-Windows line endings:"
 
     def should_check_file(self, filepath):
+        if not super().should_check_file(filepath):
+            return False
         return is_windows_file(filepath)
 
     def issue_with_line(self, line, _filepath):
@@ -174,7 +224,7 @@
     """Track lines with trailing whitespace."""
 
     heading = "Trailing whitespace:"
-    files_exemptions = frozenset([".dsp", ".md"])
+    suffix_exemptions = frozenset([".dsp", ".md"])
 
     def issue_with_line(self, line, _filepath):
         return line.rstrip(b"\r\n") != line.rstrip()
@@ -184,7 +234,8 @@
     """Track lines with tabs."""
 
     heading = "Tabs present:"
-    files_exemptions = frozenset([
+    suffix_exemptions = frozenset([
+        ".pem", # some openssl dumps have tabs
         ".sln",
         "/Makefile",
         "/Makefile.inc",
@@ -223,32 +274,6 @@
         self.check_repo_path()
         self.logger = None
         self.setup_logger(log_file)
-        self.extensions_to_check = (
-            ".bat",
-            ".c",
-            ".data",
-            ".dsp",
-            ".function",
-            ".h",
-            ".md",
-            ".pl",
-            ".py",
-            ".sh",
-            ".sln",
-            ".vcxproj",
-            "/CMakeLists.txt",
-            "/ChangeLog",
-            "/Makefile",
-            "/Makefile.inc",
-        )
-        self.excluded_directories = [
-            '.git',
-            'mbed-os',
-        ]
-        self.excluded_paths = list(map(os.path.normpath, [
-            'cov-int',
-            'examples',
-        ]))
         self.issues_to_check = [
             PermissionIssueTracker(),
             EndOfFileNewlineIssueTracker(),
@@ -275,23 +300,22 @@
             console = logging.StreamHandler()
             self.logger.addHandler(console)
 
-    def prune_branch(self, root, d):
-        if d in self.excluded_directories:
-            return True
-        if os.path.normpath(os.path.join(root, d)) in self.excluded_paths:
-            return True
-        return False
+    @staticmethod
+    def collect_files():
+        bytes_output = subprocess.check_output(['git', 'ls-files', '-z'])
+        bytes_filepaths = bytes_output.split(b'\0')[:-1]
+        ascii_filepaths = map(lambda fp: fp.decode('ascii'), bytes_filepaths)
+        # Prepend './' to files in the top-level directory so that
+        # something like `'/Makefile' in fp` matches in the top-level
+        # directory as well as in subdirectories.
+        return [fp if os.path.dirname(fp) else os.path.join(os.curdir, fp)
+                for fp in ascii_filepaths]
 
     def check_files(self):
-        for root, dirs, files in os.walk("."):
-            dirs[:] = sorted(d for d in dirs if not self.prune_branch(root, d))
-            for filename in sorted(files):
-                filepath = os.path.join(root, filename)
-                if not filepath.endswith(self.extensions_to_check):
-                    continue
-                for issue_to_check in self.issues_to_check:
-                    if issue_to_check.should_check_file(filepath):
-                        issue_to_check.check_file_for_issue(filepath)
+        for issue_to_check in self.issues_to_check:
+            for filepath in self.collect_files():
+                if issue_to_check.should_check_file(filepath):
+                    issue_to_check.check_file_for_issue(filepath)
 
     def output_issues(self):
         integrity_return_code = 0
diff --git a/tests/suites/test_suite_psa_crypto_persistent_key.function b/tests/suites/test_suite_psa_crypto_persistent_key.function
index 4edc697..e2d87ef 100644
--- a/tests/suites/test_suite_psa_crypto_persistent_key.function
+++ b/tests/suites/test_suite_psa_crypto_persistent_key.function
@@ -1,4 +1,12 @@
 /* BEGIN_HEADER */
+
+/* The tests in this module verify the contents of key store files. They
+ * access internal key storage functions directly. Some of the tests depend
+ * on the the storage format. On the other hand, these tests treat the storage
+ * subsystem as a black box, and in particular have no reliance on the
+ * internals of the ITS implementation.
+ */
+
 #include <stdint.h>
 
 #include "psa_crypto_helpers.h"
@@ -9,6 +17,10 @@
 #define PSA_KEY_STORAGE_MAGIC_HEADER "PSA\0KEY"
 #define PSA_KEY_STORAGE_MAGIC_HEADER_LENGTH ( sizeof( PSA_KEY_STORAGE_MAGIC_HEADER ) )
 
+/* Enforce the storage format for keys. The storage format is not a public
+ * documented interface, but it must be preserved between versions so that
+ * upgrades work smoothly, so it's a stable interface nonetheless.
+ */
 typedef struct {
     uint8_t magic[PSA_KEY_STORAGE_MAGIC_HEADER_LENGTH];
     uint8_t version[4];
diff --git a/tests/suites/test_suite_psa_its.function b/tests/suites/test_suite_psa_its.function
index a1d39bf..04a735a 100644
--- a/tests/suites/test_suite_psa_its.function
+++ b/tests/suites/test_suite_psa_its.function
@@ -1,4 +1,10 @@
 /* BEGIN_HEADER */
+
+/* This test file is specific to the ITS implementation in PSA Crypto
+ * on top of stdio. It expects to know what the stdio name of a file is
+ * based on its keystore name.
+ */
+
 #include "../library/psa_crypto_its.h"
 
 #include "psa_helpers.h"
diff --git a/visualc/VS2010/mbedTLS.vcxproj b/visualc/VS2010/mbedTLS.vcxproj
index 07e046a..e48b801 100644
--- a/visualc/VS2010/mbedTLS.vcxproj
+++ b/visualc/VS2010/mbedTLS.vcxproj
@@ -240,6 +240,7 @@
     <ClInclude Include="..\..\include\psa\crypto_struct.h" />
     <ClInclude Include="..\..\include\psa\crypto_types.h" />
     <ClInclude Include="..\..\include\psa\crypto_values.h" />
+    <ClInclude Include="..\..\library\common.h" />
     <ClInclude Include="..\..\library\psa_crypto_core.h" />
     <ClInclude Include="..\..\library\psa_crypto_invasive.h" />
     <ClInclude Include="..\..\library\psa_crypto_its.h" />