diff --git a/library/psa_crypto_core.h b/library/psa_crypto_core.h index 29b3b94bfe..4c38a7566f 100644 --- a/library/psa_crypto_core.h +++ b/library/psa_crypto_core.h @@ -854,4 +854,34 @@ psa_status_t mbedtls_psa_verify_hash_complete( psa_status_t mbedtls_psa_verify_hash_abort( mbedtls_psa_verify_hash_interruptible_operation_t *operation); +/** Copy from an input buffer to a local copy. + * + * \param[in] input Pointer to input buffer. + * \param[in] input_len Length of the input buffer. + * \param[out] input_copy Pointer to a local copy in which to store the input data. + * \param[out] input_copy_len Length of the local copy buffer. + * \return #PSA_SUCCESS, if the buffer was successfully + * copied. + * \return #PSA_ERROR_BUFFER_TOO_SMALL, if the local copy + * is too small to hold contents of the + * input buffer. + */ +psa_status_t psa_crypto_copy_input(const uint8_t *input, size_t input_len, + uint8_t *input_copy, size_t input_copy_len); + +/** Copy from a local output buffer into a user-supplied one. + * + * \param[in] output_copy Pointer to a local buffer containing the output. + * \param[in] output_copy_len Length of the local buffer. + * \param[out] output Pointer to user-supplied output buffer. + * \param[out] output_len Length of the user-supplied output buffer. + * \return #PSA_SUCCESS, if the buffer was successfully + * copied. + * \return #PSA_ERROR_BUFFER_TOO_SMALL, if the + * user-supplied output buffer is too small to + * hold the contents of the local buffer. + */ +psa_status_t psa_crypto_copy_output(const uint8_t *output_copy, size_t output_copy_len, + uint8_t *output, size_t output_len); + #endif /* PSA_CRYPTO_CORE_H */