mirror of
https://github.com/Mbed-TLS/mbedtls.git
synced 2025-10-26 00:37:41 +03:00
268 lines
13 KiB
C
268 lines
13 KiB
C
/*
|
|
* PSA ECP layer on top of Mbed TLS crypto
|
|
*/
|
|
/*
|
|
* Copyright The Mbed TLS Contributors
|
|
* SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
|
|
*/
|
|
|
|
#ifndef PSA_CRYPTO_ECP_H
|
|
#define PSA_CRYPTO_ECP_H
|
|
|
|
#include <psa/crypto.h>
|
|
#include <mbedtls/ecp.h>
|
|
|
|
/** Load the contents of a key buffer into an internal ECP representation
|
|
*
|
|
* \param[in] type The type of key contained in \p data.
|
|
* \param[in] curve_bits The nominal bit-size of the curve.
|
|
* It must be consistent with the representation
|
|
* passed in \p data.
|
|
* This can be 0, in which case the bit-size
|
|
* is inferred from \p data_length (which is possible
|
|
* for all key types and representation formats
|
|
* formats that are currently supported or will
|
|
* be in the foreseeable future).
|
|
* \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_ecp Returns a pointer to an ECP 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_ecp_load_representation(psa_key_type_t type,
|
|
size_t curve_bits,
|
|
const uint8_t *data,
|
|
size_t data_length,
|
|
mbedtls_ecp_keypair **p_ecp);
|
|
|
|
/** Load the public part of an internal ECP, if required.
|
|
*
|
|
* \param ecp The ECP context to load the public part for.
|
|
*
|
|
* \return PSA_SUCCESS on success, otherwise an MPI error.
|
|
*/
|
|
|
|
psa_status_t mbedtls_psa_ecp_load_public_part(mbedtls_ecp_keypair *ecp);
|
|
|
|
/** Import an ECP 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 ECP key was imported successfully.
|
|
* \retval #PSA_ERROR_INVALID_ARGUMENT
|
|
* The key data is not correctly formatted.
|
|
* \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription
|
|
* \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription
|
|
* \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription
|
|
*/
|
|
psa_status_t mbedtls_psa_ecp_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 ECP key to export representation
|
|
*
|
|
* \param[in] type The type of key (public/private) to export
|
|
* \param[in] ecp The internal ECP 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_ecp_export_key(psa_key_type_t type,
|
|
mbedtls_ecp_keypair *ecp,
|
|
uint8_t *data,
|
|
size_t data_size,
|
|
size_t *data_length);
|
|
|
|
/** Export an ECP public key or the public part of an ECP 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 ECP public key was exported successfully.
|
|
* \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription
|
|
* \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription
|
|
* \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription
|
|
* \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription
|
|
* \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription
|
|
* \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription
|
|
*/
|
|
psa_status_t mbedtls_psa_ecp_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 ECP key.
|
|
*
|
|
* \note The signature of the function is that of a PSA driver generate_key
|
|
* entry point.
|
|
*
|
|
* \param[in] attributes The attributes for the ECP 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_ecp_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 ECDSA.
|
|
*
|
|
* \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 ECC key to use for the
|
|
* operation.
|
|
* \param[in] key_buffer The buffer containing the ECC key context.
|
|
* format.
|
|
* \param[in] key_buffer_size Size of the \p key_buffer buffer in bytes.
|
|
* \param[in] alg Randomized or deterministic ECDSA algorithm.
|
|
* \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 \emptydescription
|
|
* \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_ECC_KEY_PAIR, \c key_bits,
|
|
* \p alg) where \c key_bits is the bit-size of the ECC key.
|
|
* \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription
|
|
* \retval #PSA_ERROR_INVALID_ARGUMENT \emptydescription
|
|
* \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription
|
|
* \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription
|
|
* \retval #PSA_ERROR_INSUFFICIENT_ENTROPY \emptydescription
|
|
*/
|
|
psa_status_t mbedtls_psa_ecdsa_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 an ECDSA hash or short message signature.
|
|
*
|
|
* \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 ECC key to use for the
|
|
* operation.
|
|
* \param[in] key_buffer The buffer containing the ECC key context.
|
|
* format.
|
|
* \param[in] key_buffer_size Size of the \p key_buffer buffer in bytes.
|
|
* \param[in] alg Randomized or deterministic ECDSA algorithm.
|
|
* \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 \emptydescription
|
|
* \retval #PSA_ERROR_INVALID_ARGUMENT \emptydescription
|
|
* \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription
|
|
*/
|
|
psa_status_t mbedtls_psa_ecdsa_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);
|
|
|
|
|
|
/** Perform a key agreement and return the raw ECDH shared secret.
|
|
*
|
|
* \note The signature of this function is that of a PSA driver
|
|
* key_agreement entry point. This function behaves as a key_agreement
|
|
* 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 private key
|
|
* context.
|
|
* \param[in] key_buffer_size Size of the \p key_buffer buffer in
|
|
* bytes.
|
|
* \param[in] alg A key agreement algorithm that is
|
|
* compatible with the type of the key.
|
|
* \param[in] peer_key The buffer containing the key context
|
|
* of the peer's public key.
|
|
* \param[in] peer_key_length Size of the \p peer_key buffer in
|
|
* bytes.
|
|
* \param[out] shared_secret The buffer to which the shared secret
|
|
* is to be written.
|
|
* \param[in] shared_secret_size Size of the \p shared_secret buffer in
|
|
* bytes.
|
|
* \param[out] shared_secret_length On success, the number of bytes that make
|
|
* up the returned shared secret.
|
|
* \retval #PSA_SUCCESS
|
|
* Success. Shared secret successfully calculated.
|
|
* \retval #PSA_ERROR_INVALID_HANDLE \emptydescription
|
|
* \retval #PSA_ERROR_NOT_PERMITTED \emptydescription
|
|
* \retval #PSA_ERROR_INVALID_ARGUMENT
|
|
* \p alg is not a key agreement algorithm, or
|
|
* \p private_key is not compatible with \p alg,
|
|
* or \p peer_key is not valid for \p alg or not compatible with
|
|
* \p private_key.
|
|
* \retval #PSA_ERROR_BUFFER_TOO_SMALL
|
|
* \p shared_secret_size is too small
|
|
* \retval #PSA_ERROR_NOT_SUPPORTED
|
|
* \p alg is not a supported key agreement algorithm.
|
|
* \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription
|
|
* \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription
|
|
*/
|
|
psa_status_t mbedtls_psa_key_agreement_ecdh(
|
|
const psa_key_attributes_t *attributes,
|
|
const uint8_t *key_buffer, size_t key_buffer_size,
|
|
psa_algorithm_t alg, const uint8_t *peer_key, size_t peer_key_length,
|
|
uint8_t *shared_secret, size_t shared_secret_size,
|
|
size_t *shared_secret_length);
|
|
#endif /* PSA_CRYPTO_ECP_H */
|