psa_crypto_ecp.c | Explore in Territory

/*
 *  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
 */

#include "common.h"

#if defined(MBEDTLS_PSA_CRYPTO_C)

#include <psa/crypto.h>
#include "psa_crypto_core.h"
#include "psa_crypto_ecp.h"
#include "psa_crypto_random_impl.h"
#include "mbedtls/psa_util.h"

#include <stdlib.h>
#include <string.h>
#include "mbedtls/platform.h"

#include <mbedtls/ecdsa.h>
#include <mbedtls/ecdh.h>
#include <mbedtls/ecp.h>
#include <mbedtls/error.h>

#if defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_BASIC) || \
    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_IMPORT) || \
    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_EXPORT) || \
    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_PUBLIC_KEY) || \
    defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) || \
    defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA) || \
    defined(MBEDTLS_PSA_BUILTIN_ALG_ECDH)
/* Helper function to verify if the provided EC's family and key bit size are valid.
 *
 * Note: "bits" parameter is used both as input and output and it might be updated
 *       in case provided input value is not multiple of 8 ("sloppy" bits).
 */
static int check_ecc_parameters(psa_ecc_family_t family, size_t *bits)
{ … }

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)
{ … }
#endif /* defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_BASIC) ||
        * defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_IMPORT) ||
        * defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_EXPORT) ||
        * defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_PUBLIC_KEY) ||
        * defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) ||
        * defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA) ||
        * defined(MBEDTLS_PSA_BUILTIN_ALG_ECDH) */

#if defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_IMPORT) || \
    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_EXPORT) || \
    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_PUBLIC_KEY)

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)
{ … }

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)
{ … }

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)
{ … }
#endif /* defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_IMPORT) ||
        * defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_EXPORT) ||
        * defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_PUBLIC_KEY) */

#if defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_GENERATE)
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)
{ … }
#endif /* MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_GENERATE */

/****************************************************************/
/* ECDSA sign/verify */
/****************************************************************/

#if defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) || \
    defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA)
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)
{ … }

psa_status_t mbedtls_psa_ecp_load_public_part(mbedtls_ecp_keypair *ecp)
{ … }

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)
{ … }

#endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) || \
        * defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA) */

/****************************************************************/
/* ECDH Key Agreement */
/****************************************************************/

#if defined(MBEDTLS_PSA_BUILTIN_ALG_ECDH)
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 /* MBEDTLS_PSA_BUILTIN_ALG_ECDH */


#endif /* MBEDTLS_PSA_CRYPTO_C */
godot/thirdparty/mbedtls/library/psa_crypto_ecp.c
