58 #ifndef MBEDTLS_ECDSA_H
59 #define MBEDTLS_ECDSA_H
61 #if !defined(MBEDTLS_CONFIG_FILE)
64 #include MBEDTLS_CONFIG_FILE
84 #if MBEDTLS_ECP_MAX_BYTES > 124
85 #error "MBEDTLS_ECP_MAX_BYTES bigger than expected, please fix MBEDTLS_ECDSA_MAX_LEN"
88 #define MBEDTLS_ECDSA_MAX_LEN ( 3 + 2 * ( 3 + MBEDTLS_ECP_MAX_BYTES ) )
126 const mbedtls_mpi *d,
const unsigned char *buf,
size_t blen,
127 int (*f_rng)(
void *,
unsigned char *,
size_t),
void *p_rng );
129 #if defined(MBEDTLS_ECDSA_DETERMINISTIC)
173 const unsigned char *buf,
size_t blen,
216 const unsigned char *buf,
size_t blen,
218 int (*f_rng_blind)(
void *,
unsigned char *,
248 const unsigned char *buf,
size_t blen,
293 const unsigned char *hash,
size_t hlen,
294 unsigned char *sig,
size_t *slen,
295 int (*f_rng)(
void *,
unsigned char *,
size_t),
298 #if defined(MBEDTLS_ECDSA_DETERMINISTIC)
299 #if ! defined(MBEDTLS_DEPRECATED_REMOVED)
300 #if defined(MBEDTLS_DEPRECATED_WARNING)
301 #define MBEDTLS_DEPRECATED __attribute__((deprecated))
303 #define MBEDTLS_DEPRECATED
345 const unsigned char *hash,
size_t hlen,
346 unsigned char *sig,
size_t *slen,
348 #undef MBEDTLS_DEPRECATED
377 const unsigned char *hash,
size_t hlen,
378 const unsigned char *sig,
size_t slen );
395 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)
Configuration options (set of defines)
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_ext(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, int(*f_rng_blind)(void *, unsigned char *, size_t), void *p_rng_blind)
This function computes the ECDSA signature of a previously-hashed message, deterministic version...
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...