secp256k1_recovery.h

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#ifndef SECP256K1_RECOVERY_H
#define SECP256K1_RECOVERY_H
 
#include "secp256k1.h"
 
#ifdef __cplusplus
extern "C" {
#endif

typedef struct {
    unsigned char data[65];
} secp256k1_ecdsa_recoverable_signature;

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);

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);

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);

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);

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);
 
#ifdef __cplusplus
}
#endif
 
#endif /* SECP256K1_RECOVERY_H */