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32 #ifndef MBEDTLS_ECDSA_H
33 #define MBEDTLS_ECDSA_H
35 #if !defined(MBEDTLS_CONFIG_FILE)
38 #include MBEDTLS_CONFIG_FILE
61 #define MBEDTLS_ECDSA_MAX_SIG_LEN( bits ) \
62 ( ( ( bits ) >= 61 * 8 ? 3 : 2 ) + \
63 2 * ( ( ( bits ) >= 127 * 8 ? 3 : 2 ) + \
64 ( ( bits ) + 8 ) / 8 ) )
67 #define MBEDTLS_ECDSA_MAX_LEN MBEDTLS_ECDSA_MAX_SIG_LEN( MBEDTLS_ECP_MAX_BITS )
82 #if defined(MBEDTLS_ECP_RESTARTABLE)
89 typedef struct mbedtls_ecdsa_restart_ver mbedtls_ecdsa_restart_ver_ctx;
96 typedef struct mbedtls_ecdsa_restart_sig mbedtls_ecdsa_restart_sig_ctx;
98 #if defined(MBEDTLS_ECDSA_DETERMINISTIC)
104 typedef struct mbedtls_ecdsa_restart_det mbedtls_ecdsa_restart_det_ctx;
114 mbedtls_ecdsa_restart_ver_ctx *ver;
115 mbedtls_ecdsa_restart_sig_ctx *sig;
116 #if defined(MBEDTLS_ECDSA_DETERMINISTIC)
117 mbedtls_ecdsa_restart_det_ctx *det;
175 const mbedtls_mpi *d,
const unsigned char *buf,
size_t blen,
176 int (*f_rng)(
void *,
unsigned char *,
size_t),
void *p_rng );
178 #if defined(MBEDTLS_ECDSA_DETERMINISTIC)
179 #if ! defined(MBEDTLS_DEPRECATED_REMOVED)
180 #if defined(MBEDTLS_DEPRECATED_WARNING)
181 #define MBEDTLS_DEPRECATED __attribute__((deprecated))
183 #define MBEDTLS_DEPRECATED
235 const unsigned char *buf,
size_t blen,
237 #undef MBEDTLS_DEPRECATED
281 const unsigned char *buf,
size_t blen,
283 int (*f_rng_blind)(
void *,
unsigned char *,
size_t),
320 const unsigned char *buf,
size_t blen,
374 const unsigned char *hash,
size_t hlen,
375 unsigned char *sig,
size_t *slen,
376 int (*f_rng)(
void *,
unsigned char *,
size_t),
420 const unsigned char *hash,
size_t hlen,
421 unsigned char *sig,
size_t *slen,
422 int (*f_rng)(
void *,
unsigned char *,
size_t),
426 #if defined(MBEDTLS_ECDSA_DETERMINISTIC)
427 #if ! defined(MBEDTLS_DEPRECATED_REMOVED)
428 #if defined(MBEDTLS_DEPRECATED_WARNING)
429 #define MBEDTLS_DEPRECATED __attribute__((deprecated))
431 #define MBEDTLS_DEPRECATED
477 const unsigned char *hash,
size_t hlen,
478 unsigned char *sig,
size_t *slen,
480 #undef MBEDTLS_DEPRECATED
512 const unsigned char *hash,
size_t hlen,
513 const unsigned char *sig,
size_t slen );
547 const unsigned char *hash,
size_t hlen,
548 const unsigned char *sig,
size_t slen,
568 int (*f_rng)(
void *,
unsigned char *,
size_t),
void *p_rng );
605 #if defined(MBEDTLS_ECP_RESTARTABLE)
mbedtls_md_type_t
Supported message digests.
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.
This file provides an API for Elliptic Curves over GF(P) (ECP).
#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...
This file contains the generic message-digest wrapper.
void mbedtls_ecp_restart_ctx
void mbedtls_ecdsa_restart_ctx
int mbedtls_ecdsa_from_keypair(mbedtls_ecdsa_context *ctx, const mbedtls_ecp_keypair *key)
This function sets up an ECDSA context from an EC key pair.
void mbedtls_ecdsa_init(mbedtls_ecdsa_context *ctx)
This function initializes an ECDSA context.
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.
int mbedtls_ecdsa_can_do(mbedtls_ecp_group_id gid)
This function checks whether a given group can be used for ECDSA.
void mbedtls_ecdsa_free(mbedtls_ecdsa_context *ctx)
This function frees an ECDSA context.
The ECP key-pair structure.
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_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_read_signature_restartable(mbedtls_ecdsa_context *ctx, const unsigned char *hash, size_t hlen, const unsigned char *sig, size_t slen, mbedtls_ecdsa_restart_ctx *rs_ctx)
This function reads and verifies an ECDSA signature, in a restartable way.
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.
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) MBEDTLS_DEPRECATED
This function computes the ECDSA signature of a previously-hashed message, deterministic version.
Configuration options (set of defines)
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...
The ECP point structure, in Jacobian coordinates.
mbedtls_ecp_keypair mbedtls_ecdsa_context
The ECDSA context structure.
int mbedtls_ecdsa_write_signature_restartable(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, mbedtls_ecdsa_restart_ctx *rs_ctx)
This function computes the ECDSA signature and writes it to a buffer, in a restartable way.