Bitcoin Core  22.99.0
P2P Digital Currency
secp256k1_schnorrsig.h
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1 #ifndef SECP256K1_SCHNORRSIG_H
2 #define SECP256K1_SCHNORRSIG_H
3 
4 #include "secp256k1.h"
5 #include "secp256k1_extrakeys.h"
6 
7 #ifdef __cplusplus
8 extern "C" {
9 #endif
10 
42  unsigned char *nonce32,
43  const unsigned char *msg,
44  size_t msglen,
45  const unsigned char *key32,
46  const unsigned char *xonly_pk32,
47  const unsigned char *algo,
48  size_t algolen,
49  void *data
50 );
51 
65 
82 typedef struct {
83  unsigned char magic[4];
85  void* ndata;
87 
88 #define SECP256K1_SCHNORRSIG_EXTRAPARAMS_MAGIC { 0xda, 0x6f, 0xb3, 0x8c }
89 #define SECP256K1_SCHNORRSIG_EXTRAPARAMS_INIT {\
90  SECP256K1_SCHNORRSIG_EXTRAPARAMS_MAGIC,\
91  NULL,\
92  NULL\
93 }
94 
119  const secp256k1_context* ctx,
120  unsigned char *sig64,
121  const unsigned char *msg32,
122  const secp256k1_keypair *keypair,
123  unsigned char *aux_rand32
125 
140  const secp256k1_context* ctx,
141  unsigned char *sig64,
142  const unsigned char *msg,
143  size_t msglen,
144  const secp256k1_keypair *keypair,
147 
159  const secp256k1_context* ctx,
160  const unsigned char *sig64,
161  const unsigned char *msg,
162  size_t msglen,
163  const secp256k1_xonly_pubkey *pubkey
165 
166 #ifdef __cplusplus
167 }
168 #endif
169 
170 #endif /* SECP256K1_SCHNORRSIG_H */
secp256k1_schnorrsig_extraparams::ndata
void * ndata
Definition: secp256k1_schnorrsig.h:85
secp256k1_context_struct
Definition: secp256k1.c:75
secp256k1_schnorrsig_sign_custom
SECP256K1_API int secp256k1_schnorrsig_sign_custom(const secp256k1_context *ctx, unsigned char *sig64, const unsigned char *msg, size_t msglen, const secp256k1_keypair *keypair, secp256k1_schnorrsig_extraparams *extraparams) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(5)
Create a Schnorr signature with a more flexible API.
Definition: main_impl.h:192
secp256k1_schnorrsig_sign
SECP256K1_API int secp256k1_schnorrsig_sign(const secp256k1_context *ctx, unsigned char *sig64, const unsigned char *msg32, const secp256k1_keypair *keypair, unsigned char *aux_rand32) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4)
Create a Schnorr signature.
Definition: main_impl.h:188
secp256k1_schnorrsig_verify
SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_schnorrsig_verify(const secp256k1_context *ctx, const unsigned char *sig64, const unsigned char *msg, size_t msglen, const secp256k1_xonly_pubkey *pubkey) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(5)
Verify a Schnorr signature.
Definition: main_impl.h:207
secp256k1_keypair
Opaque data structure that holds a keypair consisting of a secret and a public key.
Definition: secp256k1_extrakeys.h:33
SECP256K1_API
#define SECP256K1_API
Definition: secp256k1.h:154
secp256k1.h
SECP256K1_WARN_UNUSED_RESULT
#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:164
secp256k1_nonce_function_hardened
int(* secp256k1_nonce_function_hardened)(unsigned char *nonce32, const unsigned char *msg, size_t msglen, const unsigned char *key32, const unsigned char *xonly_pk32, const unsigned char *algo, size_t algolen, void *data)
This module implements a variant of Schnorr signatures compliant with Bitcoin Improvement Proposal 34...
Definition: secp256k1_schnorrsig.h:41
SECP256K1_ARG_NONNULL
#define SECP256K1_ARG_NONNULL(_x)
Definition: secp256k1.h:169
secp256k1_schnorrsig_extraparams::noncefp
secp256k1_nonce_function_hardened noncefp
Definition: secp256k1_schnorrsig.h:84
secp256k1_extrakeys.h
ctx
static secp256k1_context * ctx
Definition: tests.c:42
secp256k1_nonce_function_bip340
const SECP256K1_API secp256k1_nonce_function_hardened secp256k1_nonce_function_bip340
An implementation of the nonce generation function as defined in Bitcoin Improvement Proposal 340 "Sc...
Definition: main_impl.h:92
secp256k1_xonly_pubkey
Opaque data structure that holds a parsed and valid "x-only" public key.
Definition: secp256k1_extrakeys.h:22
secp256k1_schnorrsig_extraparams
Data structure that contains additional arguments for schnorrsig_sign_custom.
Definition: secp256k1_schnorrsig.h:82