18#ifndef MBEDTLS_ECDSA_H
19#define MBEDTLS_ECDSA_H
21#if !defined(MBEDTLS_CONFIG_FILE)
24#include MBEDTLS_CONFIG_FILE
47#define MBEDTLS_ECDSA_MAX_SIG_LEN(bits) \
48 ( ((bits) >= 61 * 8 ? 3 : 2) + \
49 2 * (((bits) >= 127 * 8 ? 3 : 2) + \
53#define MBEDTLS_ECDSA_MAX_LEN MBEDTLS_ECDSA_MAX_SIG_LEN(MBEDTLS_ECP_MAX_BITS)
68#if defined(MBEDTLS_ECP_RESTARTABLE)
75typedef struct mbedtls_ecdsa_restart_ver mbedtls_ecdsa_restart_ver_ctx;
82typedef struct mbedtls_ecdsa_restart_sig mbedtls_ecdsa_restart_sig_ctx;
84#if defined(MBEDTLS_ECDSA_DETERMINISTIC)
90typedef struct mbedtls_ecdsa_restart_det mbedtls_ecdsa_restart_det_ctx;
99 mbedtls_ecdsa_restart_ver_ctx *ver;
100 mbedtls_ecdsa_restart_sig_ctx *sig;
101#if defined(MBEDTLS_ECDSA_DETERMINISTIC)
102 mbedtls_ecdsa_restart_det_ctx *det;
160 const mbedtls_mpi *d,
const unsigned char *buf,
size_t blen,
161 int (*f_rng)(
void *,
unsigned char *,
size_t),
void *p_rng);
163#if defined(MBEDTLS_ECDSA_DETERMINISTIC)
164#if !defined(MBEDTLS_DEPRECATED_REMOVED)
165#if defined(MBEDTLS_DEPRECATED_WARNING)
166#define MBEDTLS_DEPRECATED __attribute__((deprecated))
168#define MBEDTLS_DEPRECATED
220 const unsigned char *buf,
size_t blen,
222#undef MBEDTLS_DEPRECATED
267 const unsigned char *buf,
size_t blen,
269 int (*f_rng_blind)(
void *,
unsigned char *,
size_t),
304 const unsigned char *buf,
size_t blen,
358 const unsigned char *hash,
size_t hlen,
359 unsigned char *sig,
size_t *slen,
360 int (*f_rng)(
void *,
unsigned char *,
size_t),
404 const unsigned char *hash,
size_t hlen,
405 unsigned char *sig,
size_t *slen,
406 int (*f_rng)(
void *,
unsigned char *,
size_t),
410#if defined(MBEDTLS_ECDSA_DETERMINISTIC)
411#if !defined(MBEDTLS_DEPRECATED_REMOVED)
412#if defined(MBEDTLS_DEPRECATED_WARNING)
413#define MBEDTLS_DEPRECATED __attribute__((deprecated))
415#define MBEDTLS_DEPRECATED
461 const unsigned char *hash,
size_t hlen,
462 unsigned char *sig,
size_t *slen,
464#undef MBEDTLS_DEPRECATED
496 const unsigned char *hash,
size_t hlen,
497 const unsigned char *sig,
size_t slen);
531 const unsigned char *hash,
size_t hlen,
532 const unsigned char *sig,
size_t slen,
552 int (*f_rng)(
void *,
unsigned char *,
size_t),
void *p_rng);
589#if defined(MBEDTLS_ECP_RESTARTABLE)
Configuration options (set of defines)
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.
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.
void mbedtls_ecdsa_free(mbedtls_ecdsa_context *ctx)
This function frees an ECDSA context.
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_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.
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.
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...
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_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.
mbedtls_ecp_keypair mbedtls_ecdsa_context
The ECDSA context structure.
#define MBEDTLS_DEPRECATED
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_can_do(mbedtls_ecp_group_id gid)
This function checks whether a given group can be used for ECDSA.
void mbedtls_ecdsa_restart_ctx
void mbedtls_ecdsa_init(mbedtls_ecdsa_context *ctx)
This function initializes an ECDSA context.
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).
void mbedtls_ecp_restart_ctx
This file contains the generic message-digest wrapper.
mbedtls_md_type_t
Supported message digests.
The ECP key-pair structure.
The ECP point structure, in Jacobian coordinates.