highperfocused/bitcoin
1
0
Fork 0
mirror of https://github.com/bitcoin/bitcoin.git synced 2025-11-13 07:28:59 +01:00
Code Issues Packages Projects Releases Wiki Activity

Fifth step in converting to C: ecdsa

Browse Source
This commit is contained in:
Pieter Wuille
2013-04-01 07:21:05 +02:00
parent b1483f874c
commit d41e93a5e2
5 changed files with 107 additions and 114 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
src/ecdsa.h
View File

@@ -1,30 +1,22 @@
#ifndef _SECP256K1_ECDSA_
#define _SECP256K1_ECDSA_
namespace secp256k1 {
#include "num.h"
class Signature {
private:
secp256k1_num_t r,s;
extern "C" {
public:
Signature() {
secp256k1_num_init(&r);
secp256k1_num_init(&s);
}
~Signature() {
secp256k1_num_free(&r);
secp256k1_num_free(&s);
}
typedef struct {
secp256k1_num_t r, s;
} secp256k1_ecdsa_sig_t;
bool Parse(const unsigned char *sig, int size);
bool Serialize(unsigned char *sig, int *size);
bool RecomputeR(secp256k1_num_t &r2, const secp256k1_gej_t &pubkey, const secp256k1_num_t &message) const;
bool Verify(const secp256k1_gej_t &pubkey, const secp256k1_num_t &message) const;
bool Sign(const secp256k1_num_t &seckey, const secp256k1_num_t &message, const secp256k1_num_t &nonce);
void SetRS(const secp256k1_num_t &rin, const secp256k1_num_t &sin);
std::string ToString() const;
};
void static secp256k1_ecdsa_sig_init(secp256k1_ecdsa_sig_t *r);
void static secp256k1_ecdsa_sig_free(secp256k1_ecdsa_sig_t *r);
int static secp256k1_ecdsa_pubkey_parse(secp256k1_gej_t *elem, const unsigned char *pub, int size);
int static secp256k1_ecdsa_sig_parse(secp256k1_ecdsa_sig_t *r, const unsigned char *sig, int size);
int static secp256k1_ecdsa_sig_serialize(unsigned char *sig, int *size, const secp256k1_ecdsa_sig_t *a);
int static secp256k1_ecdsa_sig_sign(secp256k1_ecdsa_sig_t *sig, const secp256k1_num_t *seckey, const secp256k1_num_t *message, const secp256k1_num_t *nonce);
void static secp256k1_ecdsa_sig_set_rs(secp256k1_ecdsa_sig_t *sig, const secp256k1_num_t *r, const secp256k1_num_t *s);
}