Bitcoin ABC 0.26.3
P2P Digital Currency
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secp256k1_recovery.h
Go to the documentation of this file.
1#ifndef SECP256K1_RECOVERY_H
2#define SECP256K1_RECOVERY_H
3
4#include "secp256k1.h"
5
6#ifdef __cplusplus
7extern "C" {
8#endif
9
24typedef struct {
25 unsigned char data[65];
27
39 const unsigned char *input64,
40 int recid
42
54
65 unsigned char *output64,
66 int *recid,
69
84 const unsigned char *msghash32,
85 const unsigned char *seckey,
87 const void *ndata
89
100 const secp256k1_context* ctx,
101 secp256k1_pubkey *pubkey,
103 const unsigned char *msghash32
105
106#ifdef __cplusplus
107}
108#endif
109
110#endif /* SECP256K1_RECOVERY_H */
secp256k1_context * ctx
SchnorrSig sig
T GetRand(T nMax=std::numeric_limits< T >::max()) noexcept
Generate a uniform random integer of type T in the range [0..nMax) nMax defaults to std::numeric_limi...
Definition random.h:85
#define SECP256K1_ARG_NONNULL(_x)
Definition secp256k1.h:158
#define SECP256K1_API
Definition secp256k1.h:143
int(* secp256k1_nonce_function)(unsigned char *nonce32, const unsigned char *msg32, const unsigned char *key32, const unsigned char *algo16, void *data, unsigned int attempt)
A pointer to a function to deterministically generate a nonce.
Definition secp256k1.h:103
#define SECP256K1_WARN_UNUSED_RESULT
Warning attributes NONNULL is not used if SECP256K1_BUILD is set to avoid the compiler optimizing out...
Definition secp256k1.h:153
SECP256K1_API int secp256k1_ecdsa_recoverable_signature_serialize_compact(const secp256k1_context *ctx, unsigned char *output64, int *recid, const secp256k1_ecdsa_recoverable_signature *sig) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4)
Serialize an ECDSA signature in compact format (64 bytes + recovery id).
Definition main_impl.h:60
SECP256K1_API int secp256k1_ecdsa_recoverable_signature_parse_compact(const secp256k1_context *ctx, secp256k1_ecdsa_recoverable_signature *sig, const unsigned char *input64, int recid) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3)
Parse a compact ECDSA signature (64 bytes + recovery id).
Definition main_impl.h:38
SECP256K1_API int secp256k1_ecdsa_sign_recoverable(const secp256k1_context *ctx, secp256k1_ecdsa_recoverable_signature *sig, const unsigned char *msghash32, const unsigned char *seckey, secp256k1_nonce_function noncefp, const void *ndata) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4)
Create a recoverable ECDSA signature.
Definition main_impl.h:123
SECP256K1_API int secp256k1_ecdsa_recoverable_signature_convert(const secp256k1_context *ctx, secp256k1_ecdsa_signature *sig, const secp256k1_ecdsa_recoverable_signature *sigin) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3)
Convert a recoverable signature into a normal signature.
Definition main_impl.h:74
SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ecdsa_recover(const secp256k1_context *ctx, secp256k1_pubkey *pubkey, const secp256k1_ecdsa_recoverable_signature *sig, const unsigned char *msghash32) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4)
Recover an ECDSA public key from a signature.
Definition main_impl.h:138
Opaque data structured that holds a parsed ECDSA signature, supporting pubkey recovery.
Opaque data structured that holds a parsed ECDSA signature.
Definition secp256k1.h:83
Opaque data structure that holds a parsed and valid public key.
Definition secp256k1.h:70