31 #ifndef MBEDTLS_ECDSA_H 32 #define MBEDTLS_ECDSA_H 51 #if MBEDTLS_ECP_MAX_BYTES > 124 52 #error "MBEDTLS_ECP_MAX_BYTES bigger than expected, please fix MBEDTLS_ECDSA_MAX_LEN" 55 #define MBEDTLS_ECDSA_MAX_LEN ( 3 + 2 * ( 3 + MBEDTLS_ECP_MAX_BYTES ) ) 93 const mbedtls_mpi *d,
const unsigned char *buf,
size_t blen,
94 int (*f_rng)(
void *,
unsigned char *,
size_t),
void *p_rng );
96 #if defined(MBEDTLS_ECDSA_DETERMINISTIC) 125 const mbedtls_mpi *d,
const unsigned char *buf,
size_t blen,
154 const unsigned char *buf,
size_t blen,
199 const unsigned char *hash,
size_t hlen,
200 unsigned char *sig,
size_t *slen,
201 int (*f_rng)(
void *,
unsigned char *,
size_t),
204 #if defined(MBEDTLS_ECDSA_DETERMINISTIC) 205 #if ! defined(MBEDTLS_DEPRECATED_REMOVED) 206 #if defined(MBEDTLS_DEPRECATED_WARNING) 207 #define MBEDTLS_DEPRECATED __attribute__((deprecated)) 209 #define MBEDTLS_DEPRECATED 251 const unsigned char *hash,
size_t hlen,
252 unsigned char *sig,
size_t *slen,
254 #undef MBEDTLS_DEPRECATED 283 const unsigned char *hash,
size_t hlen,
284 const unsigned char *sig,
size_t slen );
301 int (*f_rng)(
void *,
unsigned char *,
size_t),
void *p_rng );
void mbedtls_ecdsa_free(mbedtls_ecdsa_context *ctx)
This function frees an ECDSA context.
Elliptic curves over GF(p)
void mbedtls_ecdsa_init(mbedtls_ecdsa_context *ctx)
This function initializes an ECDSA context.
int mbedtls_ecdsa_verify(mbedtls_ecp_group *grp, const unsigned char *buf, size_t blen, const mbedtls_ecp_point *Q, const mbedtls_mpi *r, const mbedtls_mpi *s)
This function verifies the ECDSA signature of a previously-hashed message.
int mbedtls_ecdsa_sign(mbedtls_ecp_group *grp, mbedtls_mpi *r, mbedtls_mpi *s, const mbedtls_mpi *d, const unsigned char *buf, size_t blen, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng)
This function computes the ECDSA signature of a previously-hashed message.
int mbedtls_ecdsa_from_keypair(mbedtls_ecdsa_context *ctx, const mbedtls_ecp_keypair *key)
This function sets an ECDSA context from an EC key pair.
int mbedtls_ecdsa_sign_det(mbedtls_ecp_group *grp, mbedtls_mpi *r, mbedtls_mpi *s, const mbedtls_mpi *d, const unsigned char *buf, size_t blen, mbedtls_md_type_t md_alg)
This function computes the ECDSA signature of a previously-hashed message, deterministic version...
mbedtls_ecp_keypair mbedtls_ecdsa_context
The ECDSA context structure.
int mbedtls_ecdsa_genkey(mbedtls_ecdsa_context *ctx, mbedtls_ecp_group_id gid, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng)
This function generates an ECDSA keypair on the given curve.
The generic message-digest wrapper.
int mbedtls_ecdsa_write_signature_det(mbedtls_ecdsa_context *ctx, const unsigned char *hash, size_t hlen, unsigned char *sig, size_t *slen, mbedtls_md_type_t md_alg) MBEDTLS_DEPRECATED
This function computes an ECDSA signature and writes it to a buffer, serialized as defined in RFC-449...
int mbedtls_ecdsa_read_signature(mbedtls_ecdsa_context *ctx, const unsigned char *hash, size_t hlen, const unsigned char *sig, size_t slen)
This function reads and verifies an ECDSA signature.
ECP point structure (jacobian coordinates)
mbedtls_md_type_t
Enumeration of supported message digests.
#define MBEDTLS_DEPRECATED
int mbedtls_ecdsa_write_signature(mbedtls_ecdsa_context *ctx, mbedtls_md_type_t md_alg, const unsigned char *hash, size_t hlen, unsigned char *sig, size_t *slen, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng)
This function computes the ECDSA signature and writes it to a buffer, serialized as defined in RFC-44...