mbedtls/library/psa_crypto_rsa.h
Ronald Cron 2091eed609 psa: driver: Reduce the scope of test driver entry points
Define test driver entry points that provide an alternative
to Mbed TLS driver entry points only when the PSA configuration
is used. Their purpose is only to test the PSA configuration
thus there is no good reason to use them out of this scope.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-11-30 13:24:47 +01:00

251 lines
11 KiB
C

/*
* PSA RSA layer on top of Mbed TLS crypto
*/
/*
* Copyright The Mbed TLS Contributors
* 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.
*/
#ifndef PSA_CRYPTO_RSA_H
#define PSA_CRYPTO_RSA_H
#include <psa/crypto.h>
#include <mbedtls/rsa.h>
/** Load the contents of a key buffer into an internal RSA representation
*
* \param[in] type The type of key contained in \p data.
* \param[in] data The buffer from which to load the representation.
* \param[in] data_length The size in bytes of \p data.
* \param[out] p_rsa Returns a pointer to an RSA context on success.
* The caller is responsible for freeing both the
* contents of the context and the context itself
* when done.
*/
psa_status_t mbedtls_psa_rsa_load_representation( psa_key_type_t type,
const uint8_t *data,
size_t data_length,
mbedtls_rsa_context **p_rsa );
/** Import an RSA key in binary format.
*
* \note The signature of this function is that of a PSA driver
* import_key entry point. This function behaves as an import_key
* entry point as defined in the PSA driver interface specification for
* transparent drivers.
*
* \param[in] attributes The attributes for the key to import.
* \param[in] data The buffer containing the key data in import
* format.
* \param[in] data_length Size of the \p data buffer in bytes.
* \param[out] key_buffer The buffer containing the key data in output
* format.
* \param[in] key_buffer_size Size of the \p key_buffer buffer in bytes. This
* size is greater or equal to \p data_length.
* \param[out] key_buffer_length The length of the data written in \p
* key_buffer in bytes.
* \param[out] bits The key size in number of bits.
*
* \retval #PSA_SUCCESS The RSA key was imported successfully.
* \retval #PSA_ERROR_INVALID_ARGUMENT
* The key data is not correctly formatted.
* \retval #PSA_ERROR_NOT_SUPPORTED
* \retval #PSA_ERROR_INSUFFICIENT_MEMORY
* \retval #PSA_ERROR_CORRUPTION_DETECTED
*/
psa_status_t mbedtls_psa_rsa_import_key(
const psa_key_attributes_t *attributes,
const uint8_t *data, size_t data_length,
uint8_t *key_buffer, size_t key_buffer_size,
size_t *key_buffer_length, size_t *bits );
/** Export an RSA key to export representation
*
* \param[in] type The type of key (public/private) to export
* \param[in] rsa The internal RSA representation from which to export
* \param[out] data The buffer to export to
* \param[in] data_size The length of the buffer to export to
* \param[out] data_length The amount of bytes written to \p data
*/
psa_status_t mbedtls_psa_rsa_export_key( psa_key_type_t type,
mbedtls_rsa_context *rsa,
uint8_t *data,
size_t data_size,
size_t *data_length );
/** Export a public RSA key or the public part of an RSA key pair in binary
* format.
*
* \note The signature of this function is that of a PSA driver
* export_public_key entry point. This function behaves as an
* export_public_key entry point as defined in the PSA driver interface
* specification.
*
* \param[in] attributes The attributes for the key to export.
* \param[in] key_buffer Material or context of the key to export.
* \param[in] key_buffer_size Size of the \p key_buffer buffer in bytes.
* \param[out] data Buffer where the key data is to be written.
* \param[in] data_size Size of the \p data buffer in bytes.
* \param[out] data_length On success, the number of bytes written in
* \p data.
*
* \retval #PSA_SUCCESS The RSA public key was exported successfully.
* \retval #PSA_ERROR_NOT_SUPPORTED
* \retval #PSA_ERROR_COMMUNICATION_FAILURE
* \retval #PSA_ERROR_HARDWARE_FAILURE
* \retval #PSA_ERROR_CORRUPTION_DETECTED
* \retval #PSA_ERROR_STORAGE_FAILURE
* \retval #PSA_ERROR_INSUFFICIENT_MEMORY
*/
psa_status_t mbedtls_psa_rsa_export_public_key(
const psa_key_attributes_t *attributes,
const uint8_t *key_buffer, size_t key_buffer_size,
uint8_t *data, size_t data_size, size_t *data_length );
/**
* \brief Generate an RSA key.
*
* \note The signature of the function is that of a PSA driver generate_key
* entry point.
*
* \param[in] attributes The attributes for the RSA key to generate.
* \param[out] key_buffer Buffer where the key data is to be written.
* \param[in] key_buffer_size Size of \p key_buffer in bytes.
* \param[out] key_buffer_length On success, the number of bytes written in
* \p key_buffer.
*
* \retval #PSA_SUCCESS
* The key was successfully generated.
* \retval #PSA_ERROR_NOT_SUPPORTED
* Key length or type not supported.
* \retval #PSA_ERROR_BUFFER_TOO_SMALL
* The size of \p key_buffer is too small.
*/
psa_status_t mbedtls_psa_rsa_generate_key(
const psa_key_attributes_t *attributes,
uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length );
/** Sign an already-calculated hash with an RSA 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 RSA key to use for the
* operation.
* \param[in] key_buffer The buffer containing the RSA 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
* an RSA 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 PSA_KEY_TYPE_RSA_KEY_PAIR, \c key_bits,
* \p alg) where \c key_bits is the bit-size of the RSA 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 mbedtls_psa_rsa_sign_hash(
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 RSA 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 RSA key to use for the
* operation.
* \param[in] key_buffer The buffer containing the RSA 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
* an RSA 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 mbedtls_psa_rsa_verify_hash(
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 );
/*
* BEYOND THIS POINT, TEST DRIVER ENTRY POINTS ONLY.
*/
#if defined(PSA_CRYPTO_DRIVER_TEST) && defined(MBEDTLS_PSA_CRYPTO_CONFIG)
psa_status_t mbedtls_transparent_test_driver_rsa_import_key(
const psa_key_attributes_t *attributes,
const uint8_t *data, size_t data_length,
uint8_t *key_buffer, size_t key_buffer_size,
size_t *key_buffer_length, size_t *bits );
psa_status_t mbedtls_transparent_test_driver_rsa_export_public_key(
const psa_key_attributes_t *attributes,
const uint8_t *key_buffer, size_t key_buffer_size,
uint8_t *data, size_t data_size, size_t *data_length );
psa_status_t mbedtls_transparent_test_driver_rsa_generate_key(
const psa_key_attributes_t *attributes,
uint8_t *key, size_t key_size, size_t *key_length );
psa_status_t mbedtls_transparent_test_driver_rsa_sign_hash(
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 );
psa_status_t mbedtls_transparent_test_driver_rsa_verify_hash(
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_DRIVER_TEST && MBEDTLS_PSA_CRYPTO_CONFIG */
#endif /* PSA_CRYPTO_RSA_H */