Crypto: Add support for Hash functionalities
This patch introduces support for the Hash functionalities
exposed by the PSA Crypto API, and adds a set of tests to
the Regression test suite to validate the API functions.
Change-Id: I4169b7a1a7a04140d557edef4e9d86a9c6ae0f50
Signed-off-by: Antonio de Angelis <antonio.deangelis@arm.com>
diff --git a/secure_fw/services/crypto/tfm_crypto_api.h b/secure_fw/services/crypto/tfm_crypto_api.h
index c415c09..9b575a5 100644
--- a/secure_fw/services/crypto/tfm_crypto_api.h
+++ b/secure_fw/services/crypto/tfm_crypto_api.h
@@ -221,12 +221,70 @@
/**
* \brief Aborts a cipher operation, clears the operation context provided
*
- * \param[in] operation Cipher operation context
+ * \param[in] operation Cipher operation context
*
* \return Returns values as described in \ref tfm_crypto_err_t
*/
enum tfm_crypto_err_t tfm_crypto_cipher_abort(
psa_cipher_operation_t *operation);
+/**
+ * \brief Starts a hash operation with the provided algorithm
+ *
+ * \param[in] operation Hash operation context
+ * \param[in] alg Algorithm chosen as hash
+ *
+ * \return Returns values as described in \ref tfm_crypto_err_t
+ */
+enum tfm_crypto_err_t tfm_crypto_hash_start(psa_hash_operation_t *operation,
+ psa_algorithm_t alg);
+/**
+ * \brief Adds a new input chunk to the data for which the final hash value
+ * will be computed
+ *
+ * \param[in] operation Hash operation context
+ * \param[in] input Buffer containing the input data
+ * \param[in] input_length Size of the provided input data
+ *
+ * \return Returns values as described in \ref tfm_crypto_err_t
+ */
+enum tfm_crypto_err_t tfm_crypto_hash_update(psa_hash_operation_t *operation,
+ const uint8_t *input,
+ size_t input_length);
+/**
+ * \brief Finalises a hash context operation producing the final hash value
+ *
+ * \param[in] operation Hash operation context
+ * \param[out] hash Buffer containing hash data
+ * \param[in] hash_size Size of the hash buffer
+ * \param[out] hash_length Size of the produced hash
+ *
+ * \return Returns values as described in \ref tfm_crypto_err_t
+ */
+enum tfm_crypto_err_t tfm_crypto_hash_finish(psa_hash_operation_t *operation,
+ uint8_t *hash,
+ size_t hash_size,
+ size_t *hash_length);
+/**
+ * \brief Finalises a hash context operation, verifying that the final hash
+ * value matches the one provided as input
+ *
+ * \param[in] operation Hash operation context
+ * \param[in] hash Buffer containing the provided hash value
+ * \param[in] hash_length Size of the provided hash value
+ *
+ * \return Returns values as described in \ref tfm_crypto_err_t
+ */
+enum tfm_crypto_err_t tfm_crypto_hash_verify(psa_hash_operation_t *operation,
+ const uint8_t *hash,
+ size_t hash_length);
+/**
+ * \brief Aborts a hash operation, clears the operation context provided
+ *
+ * \param[in] operation Hash operation context
+ *
+ * \return Returns values as described in \ref tfm_crypto_err_t
+ */
+enum tfm_crypto_err_t tfm_crypto_hash_abort(psa_hash_operation_t *operation);
#ifdef __cplusplus
}