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64 #if !defined(MBEDTLS_CONFIG_FILE)
67 #include MBEDTLS_CONFIG_FILE
75 #define MBEDTLS_ERR_ECP_BAD_INPUT_DATA -0x4F80
76 #define MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL -0x4F00
77 #define MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE -0x4E80
78 #define MBEDTLS_ERR_ECP_VERIFY_FAILED -0x4E00
79 #define MBEDTLS_ERR_ECP_ALLOC_FAILED -0x4D80
80 #define MBEDTLS_ERR_ECP_RANDOM_FAILED -0x4D00
81 #define MBEDTLS_ERR_ECP_INVALID_KEY -0x4C80
82 #define MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH -0x4C00
85 #define MBEDTLS_ERR_ECP_HW_ACCEL_FAILED -0x4B80
87 #define MBEDTLS_ERR_ECP_IN_PROGRESS -0x4B00
125 #define MBEDTLS_ECP_DP_MAX 12
157 #if !defined(MBEDTLS_ECP_ALT)
231 #if !defined(MBEDTLS_ECP_MAX_BITS)
235 #define MBEDTLS_ECP_MAX_BITS 521
238 #define MBEDTLS_ECP_MAX_BYTES ( ( MBEDTLS_ECP_MAX_BITS + 7 ) / 8 )
239 #define MBEDTLS_ECP_MAX_PT_LEN ( 2 * MBEDTLS_ECP_MAX_BYTES + 1 )
241 #if !defined(MBEDTLS_ECP_WINDOW_SIZE)
261 #define MBEDTLS_ECP_WINDOW_SIZE 6
264 #if !defined(MBEDTLS_ECP_FIXED_POINT_OPTIM)
276 #define MBEDTLS_ECP_FIXED_POINT_OPTIM 1
285 #if defined(MBEDTLS_ECP_RESTARTABLE)
292 typedef struct mbedtls_ecp_restart_mul mbedtls_ecp_restart_mul_ctx;
299 typedef struct mbedtls_ecp_restart_muladd mbedtls_ecp_restart_muladd_ctx;
308 mbedtls_ecp_restart_mul_ctx *rsm;
309 mbedtls_ecp_restart_muladd_ctx *ma;
315 #define MBEDTLS_ECP_OPS_CHK 3
316 #define MBEDTLS_ECP_OPS_DBL 8
317 #define MBEDTLS_ECP_OPS_ADD 11
318 #define MBEDTLS_ECP_OPS_INV 120
331 int mbedtls_ecp_check_budget( const mbedtls_ecp_group *grp,
336 #define MBEDTLS_ECP_BUDGET( ops ) \
337 MBEDTLS_MPI_CHK( mbedtls_ecp_check_budget( grp, rs_ctx, \
338 (unsigned) (ops) ) );
342 #define MBEDTLS_ECP_BUDGET( ops )
368 #define MBEDTLS_ECP_PF_UNCOMPRESSED 0
369 #define MBEDTLS_ECP_PF_COMPRESSED 1
374 #define MBEDTLS_ECP_TLS_NAMED_CURVE 3
376 #if defined(MBEDTLS_ECP_RESTARTABLE)
434 void mbedtls_ecp_set_max_ops(
unsigned max_ops );
442 int mbedtls_ecp_restart_is_enabled(
void );
547 #if defined(MBEDTLS_ECP_RESTARTABLE)
643 const char *x,
const char *y );
666 int format,
size_t *olen,
667 unsigned char *buf,
size_t buflen );
693 const unsigned char *buf,
size_t ilen );
715 const unsigned char **buf,
size_t len );
741 int format,
size_t *olen,
742 unsigned char *buf,
size_t blen );
781 const unsigned char **buf,
size_t len );
802 const unsigned char **buf,
824 unsigned char *buf,
size_t blen );
864 int (*f_rng)(
void *,
unsigned char *,
size_t),
void *p_rng );
898 int (*f_rng)(
void *,
unsigned char *,
size_t),
void *p_rng,
1043 int (*f_rng)(
void *,
unsigned char *,
size_t),
1076 int (*f_rng)(
void *,
unsigned char *,
size_t),
1104 int (*f_rng)(
void *,
unsigned char *,
size_t),
1121 int (*f_rng)(
void *,
unsigned char *,
size_t),
1144 #if defined(MBEDTLS_SELF_TEST)
void mbedtls_ecp_group_free(mbedtls_ecp_group *grp)
This function frees the components of an ECP group.
@ MBEDTLS_ECP_DP_SECP224K1
void mbedtls_ecp_point_init(mbedtls_ecp_point *pt)
This function initializes a point as zero.
const mbedtls_ecp_curve_info * mbedtls_ecp_curve_info_from_tls_id(uint16_t tls_id)
This function retrieves curve information from a TLS NamedCurve value.
@ MBEDTLS_ECP_DP_SECP224R1
int mbedtls_ecp_gen_keypair_base(mbedtls_ecp_group *grp, const mbedtls_ecp_point *G, mbedtls_mpi *d, mbedtls_ecp_point *Q, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng)
This function generates a keypair with a configurable base point.
mbedtls_ecp_group_id grp_id
int mbedtls_ecp_check_privkey(const mbedtls_ecp_group *grp, const mbedtls_mpi *d)
This function checks that an mbedtls_mpi is a valid private key for this curve.
void mbedtls_ecp_restart_ctx
@ MBEDTLS_ECP_DP_SECP384R1
int mbedtls_ecp_muladd(mbedtls_ecp_group *grp, mbedtls_ecp_point *R, const mbedtls_mpi *m, const mbedtls_ecp_point *P, const mbedtls_mpi *n, const mbedtls_ecp_point *Q)
This function performs multiplication and addition of two points by integers: R = m * P + n * Q.
@ MBEDTLS_ECP_DP_SECP256R1
int mbedtls_ecp_set_zero(mbedtls_ecp_point *pt)
This function sets a point to the point at infinity.
int mbedtls_ecp_tls_write_group(const mbedtls_ecp_group *grp, size_t *olen, unsigned char *buf, size_t blen)
This function exports an elliptic curve as a TLS ECParameters record as defined in RFC 4492,...
int mbedtls_ecp_group_copy(mbedtls_ecp_group *dst, const mbedtls_ecp_group *src)
This function copies the contents of group src into group dst.
int mbedtls_ecp_point_cmp(const mbedtls_ecp_point *P, const mbedtls_ecp_point *Q)
This function compares two points.
int mbedtls_ecp_tls_write_point(const mbedtls_ecp_group *grp, const mbedtls_ecp_point *pt, int format, size_t *olen, unsigned char *buf, size_t blen)
This function exports a point as a TLS ECPoint record defined in RFC 4492, Section 5....
struct mbedtls_ecp_point mbedtls_ecp_point
The ECP point structure, in Jacobian coordinates.
@ MBEDTLS_ECP_DP_CURVE448
void mbedtls_ecp_point_free(mbedtls_ecp_point *pt)
This function frees the components of a point.
int mbedtls_ecp_tls_read_point(const mbedtls_ecp_group *grp, mbedtls_ecp_point *pt, const unsigned char **buf, size_t len)
This function imports a point from a TLS ECPoint record.
Multi-precision integer library.
const mbedtls_ecp_group_id * mbedtls_ecp_grp_id_list(void)
This function retrieves the list of internal group identifiers of all supported curves in the order o...
int mbedtls_ecp_gen_privkey(const mbedtls_ecp_group *grp, mbedtls_mpi *d, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng)
This function generates a private key.
int mbedtls_ecp_muladd_restartable(mbedtls_ecp_group *grp, mbedtls_ecp_point *R, const mbedtls_mpi *m, const mbedtls_ecp_point *P, const mbedtls_mpi *n, const mbedtls_ecp_point *Q, mbedtls_ecp_restart_ctx *rs_ctx)
This function performs multiplication and addition of two points by integers: R = m * P + n * Q in a ...
int mbedtls_ecp_tls_read_group_id(mbedtls_ecp_group_id *grp, const unsigned char **buf, size_t len)
This function extracts an elliptic curve group ID from a TLS ECParameters record as defined in RFC 44...
int(* t_pre)(mbedtls_ecp_point *, void *)
int mbedtls_ecp_copy(mbedtls_ecp_point *P, const mbedtls_ecp_point *Q)
This function copies the contents of point Q into point P.
int mbedtls_ecp_check_pub_priv(const mbedtls_ecp_keypair *pub, const mbedtls_ecp_keypair *prv)
This function checks that the keypair objects pub and prv have the same group and the same public poi...
The ECP key-pair structure.
@ MBEDTLS_ECP_DP_CURVE25519
int mbedtls_ecp_group_load(mbedtls_ecp_group *grp, mbedtls_ecp_group_id id)
This function sets up an ECP group context from a standardized set of domain parameters.
@ MBEDTLS_ECP_DP_SECP256K1
int mbedtls_ecp_check_pubkey(const mbedtls_ecp_group *grp, const mbedtls_ecp_point *pt)
This function checks that a point is a valid public key on this curve.
int mbedtls_ecp_mul(mbedtls_ecp_group *grp, mbedtls_ecp_point *R, const mbedtls_mpi *m, const mbedtls_ecp_point *P, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng)
This function performs a scalar multiplication of a point by an integer: R = m * P.
int mbedtls_ecp_gen_key(mbedtls_ecp_group_id grp_id, mbedtls_ecp_keypair *key, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng)
This function generates an ECP key.
int mbedtls_ecp_mul_restartable(mbedtls_ecp_group *grp, mbedtls_ecp_point *R, const mbedtls_mpi *m, const mbedtls_ecp_point *P, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng, mbedtls_ecp_restart_ctx *rs_ctx)
This function performs multiplication of a point by an integer: R = m * P in a restartable way.
@ MBEDTLS_ECP_DP_SECP192K1
int(* modp)(mbedtls_mpi *)
int mbedtls_ecp_self_test(int verbose)
The ECP checkup routine.
void mbedtls_ecp_keypair_free(mbedtls_ecp_keypair *key)
This function frees the components of a key pair.
struct mbedtls_ecp_curve_info mbedtls_ecp_curve_info
@ MBEDTLS_ECP_DP_SECP521R1
int(* t_post)(mbedtls_ecp_point *, void *)
@ MBEDTLS_ECP_DP_SECP192R1
struct mbedtls_ecp_group mbedtls_ecp_group
The ECP group structure.
const mbedtls_ecp_curve_info * mbedtls_ecp_curve_list(void)
This function retrieves the information defined in mbedtls_ecp_curve_info() for all supported curves ...
int mbedtls_ecp_point_read_binary(const mbedtls_ecp_group *grp, mbedtls_ecp_point *P, const unsigned char *buf, size_t ilen)
This function imports a point from unsigned binary data.
int mbedtls_ecp_is_zero(mbedtls_ecp_point *pt)
This function checks if a point is the point at infinity.
int mbedtls_ecp_gen_keypair(mbedtls_ecp_group *grp, mbedtls_mpi *d, mbedtls_ecp_point *Q, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng)
This function generates an ECP keypair.
Configuration options (set of defines)
void mbedtls_ecp_group_init(mbedtls_ecp_group *grp)
This function initializes an ECP group context without loading any domain parameters.
void mbedtls_ecp_keypair_init(mbedtls_ecp_keypair *key)
This function initializes a key pair as an invalid one.
struct mbedtls_ecp_keypair mbedtls_ecp_keypair
The ECP key-pair structure.
int mbedtls_ecp_point_write_binary(const mbedtls_ecp_group *grp, const mbedtls_ecp_point *P, int format, size_t *olen, unsigned char *buf, size_t buflen)
This function exports a point into unsigned binary data.
The ECP point structure, in Jacobian coordinates.
int mbedtls_ecp_tls_read_group(mbedtls_ecp_group *grp, const unsigned char **buf, size_t len)
This function sets up an ECP group context from a TLS ECParameters record as defined in RFC 4492,...
const mbedtls_ecp_curve_info * mbedtls_ecp_curve_info_from_grp_id(mbedtls_ecp_group_id grp_id)
This function retrieves curve information from an internal group identifier.
int mbedtls_ecp_point_read_string(mbedtls_ecp_point *P, int radix, const char *x, const char *y)
This function imports a non-zero point from two ASCII strings.
const mbedtls_ecp_curve_info * mbedtls_ecp_curve_info_from_name(const char *name)
This function retrieves curve information from a human-readable name.