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psa: Export "internally" psa_sign/verify_hash_internal

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Export psa_sign/verify_hash_internal from psa_crypto.c
to make it available to the driver wrapper.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
This commit is contained in:
Ronald Cron 2020-12-08 17:37:27 +01:00
parent 9f17aa48c2
commit 67b1eb309b
2 changed files with 78 additions and 2 deletions
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4
library/psa_crypto.c
View file

@ -3341,7 +3341,7 @@ cleanup:
#endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) ||
* defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA) */
static psa_status_t psa_sign_hash_internal(
psa_status_t psa_sign_hash_internal(
const psa_key_attributes_t *attributes,
const uint8_t *key_buffer, size_t key_buffer_size,
psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
@ -3487,7 +3487,7 @@ exit:
return( ( status == PSA_SUCCESS ) ? unlock_status : status );
}
static psa_status_t psa_verify_hash_internal(
psa_status_t psa_verify_hash_internal(
const psa_key_attributes_t *attributes,
const uint8_t *key_buffer, size_t key_buffer_size,
psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,

76
library/psa_crypto_core.h
View file

@ -324,4 +324,80 @@ psa_status_t psa_generate_key_internal( const psa_key_attributes_t *attributes,
size_t key_buffer_size,
size_t *key_buffer_length );
/** Sign an already-calculated hash with a private key.
*
* \note The signature of this function is that of a PSA driver
* sign_hash entry point. This function behaves as a sign_hash
* entry point as defined in the PSA driver interface specification for
* transparent drivers.
*
* \param[in] attributes The attributes of the key to use for the
* operation.
* \param[in] key_buffer The buffer containing the key context.
* format.
* \param[in] key_buffer_size Size of the \p key_buffer buffer in bytes.
* \param[in] alg A signature algorithm that is compatible with
* the type of the key.
* \param[in] hash The hash or message to sign.
* \param[in] hash_length Size of the \p hash buffer in bytes.
* \param[out] signature Buffer where the signature is to be written.
* \param[in] signature_size Size of the \p signature buffer in bytes.
* \param[out] signature_length On success, the number of bytes
* that make up the returned signature value.
*
* \retval #PSA_SUCCESS
* \retval #PSA_ERROR_BUFFER_TOO_SMALL
* The size of the \p signature buffer is too small. You can
* determine a sufficient buffer size by calling
* #PSA_SIGN_OUTPUT_SIZE(\c key_type, \c key_bits, \p alg)
* where \c key_type and \c key_bits are the type and bit-size
* respectively of the key.
* \retval #PSA_ERROR_NOT_SUPPORTED
* \retval #PSA_ERROR_INVALID_ARGUMENT
* \retval #PSA_ERROR_INSUFFICIENT_MEMORY
* \retval #PSA_ERROR_CORRUPTION_DETECTED
* \retval #PSA_ERROR_INSUFFICIENT_ENTROPY
*/
psa_status_t psa_sign_hash_internal(
const psa_key_attributes_t *attributes,
const uint8_t *key_buffer, size_t key_buffer_size,
psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
uint8_t *signature, size_t signature_size, size_t *signature_length );
/**
* \brief Verify the signature a hash or short message using a public key.
*
* \note The signature of this function is that of a PSA driver
* verify_hash entry point. This function behaves as a verify_hash
* entry point as defined in the PSA driver interface specification for
* transparent drivers.
*
* \param[in] attributes The attributes of the key to use for the
* operation.
* \param[in] key_buffer The buffer containing the key context.
* format.
* \param[in] key_buffer_size Size of the \p key_buffer buffer in bytes.
* \param[in] alg A signature algorithm that is compatible with
* the type of the key.
* \param[in] hash The hash or message whose signature is to be
* verified.
* \param[in] hash_length Size of the \p hash buffer in bytes.
* \param[in] signature Buffer containing the signature to verify.
* \param[in] signature_length Size of the \p signature buffer in bytes.
*
* \retval #PSA_SUCCESS
* The signature is valid.
* \retval #PSA_ERROR_INVALID_SIGNATURE
* The calculation was performed successfully, but the passed
* signature is not a valid signature.
* \retval #PSA_ERROR_NOT_SUPPORTED
* \retval #PSA_ERROR_INVALID_ARGUMENT
* \retval #PSA_ERROR_INSUFFICIENT_MEMORY
*/
psa_status_t psa_verify_hash_internal(
const psa_key_attributes_t *attributes,
const uint8_t *key_buffer, size_t key_buffer_size,
psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
const uint8_t *signature, size_t signature_length );
#endif /* PSA_CRYPTO_CORE_H */