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src/secp256k1/include/secp256k1_recovery.h
| Show First 20 Lines • Show All 65 Lines • ▼ Show 20 Lines | SECP256K1_API int secp256k1_ecdsa_recoverable_signature_serialize_compact( | ||||
| int *recid, | int *recid, | ||||
| const secp256k1_ecdsa_recoverable_signature* sig | const secp256k1_ecdsa_recoverable_signature* sig | ||||
| ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4); | ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4); | ||||
| /** Create a recoverable ECDSA signature. | /** Create a recoverable ECDSA signature. | ||||
| * | * | ||||
| * Returns: 1: signature created | * Returns: 1: signature created | ||||
| * 0: the nonce generation function failed, or the secret key was invalid. | * 0: the nonce generation function failed, or the secret key was invalid. | ||||
| * Args: ctx: pointer to a context object, initialized for signing (cannot be NULL) | * Args: ctx: pointer to a context object, initialized for signing (cannot be NULL) | ||||
| * Out: sig: pointer to an array where the signature will be placed (cannot be NULL) | * Out: sig: pointer to an array where the signature will be placed (cannot be NULL) | ||||
| * In: msg32: the 32-byte message hash being signed (cannot be NULL) | * In: msghash32: the 32-byte message hash being signed (cannot be NULL) | ||||
| * seckey: pointer to a 32-byte secret key (cannot be NULL) | * seckey: pointer to a 32-byte secret key (cannot be NULL) | ||||
| * noncefp:pointer to a nonce generation function. If NULL, secp256k1_nonce_function_default is used | * noncefp: pointer to a nonce generation function. If NULL, secp256k1_nonce_function_default is used | ||||
| * ndata: pointer to arbitrary data used by the nonce generation function (can be NULL) | * ndata: pointer to arbitrary data used by the nonce generation function (can be NULL) | ||||
| */ | */ | ||||
| SECP256K1_API int secp256k1_ecdsa_sign_recoverable( | SECP256K1_API int secp256k1_ecdsa_sign_recoverable( | ||||
| const secp256k1_context* ctx, | const secp256k1_context* ctx, | ||||
| secp256k1_ecdsa_recoverable_signature *sig, | secp256k1_ecdsa_recoverable_signature *sig, | ||||
| const unsigned char *msg32, | const unsigned char *msghash32, | ||||
| const unsigned char *seckey, | const unsigned char *seckey, | ||||
| secp256k1_nonce_function noncefp, | secp256k1_nonce_function noncefp, | ||||
| const void *ndata | const void *ndata | ||||
| ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4); | ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4); | ||||
| /** Recover an ECDSA public key from a signature. | /** Recover an ECDSA public key from a signature. | ||||
| * | * | ||||
| * Returns: 1: public key successfully recovered (which guarantees a correct signature). | * Returns: 1: public key successfully recovered (which guarantees a correct signature). | ||||
| * 0: otherwise. | * 0: otherwise. | ||||
| * Args: ctx: pointer to a context object, initialized for verification (cannot be NULL) | * Args: ctx: pointer to a context object, initialized for verification (cannot be NULL) | ||||
| * Out: pubkey: pointer to the recovered public key (cannot be NULL) | * Out: pubkey: pointer to the recovered public key (cannot be NULL) | ||||
| * In: sig: pointer to initialized signature that supports pubkey recovery (cannot be NULL) | * In: sig: pointer to initialized signature that supports pubkey recovery (cannot be NULL) | ||||
| * msg32: the 32-byte message hash assumed to be signed (cannot be NULL) | * msghash32: the 32-byte message hash assumed to be signed (cannot be NULL) | ||||
| */ | */ | ||||
| SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ecdsa_recover( | SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ecdsa_recover( | ||||
| const secp256k1_context* ctx, | const secp256k1_context* ctx, | ||||
| secp256k1_pubkey *pubkey, | secp256k1_pubkey *pubkey, | ||||
| const secp256k1_ecdsa_recoverable_signature *sig, | const secp256k1_ecdsa_recoverable_signature *sig, | ||||
| const unsigned char *msg32 | const unsigned char *msghash32 | ||||
| ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4); | ) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4); | ||||
| #ifdef __cplusplus | #ifdef __cplusplus | ||||
| } | } | ||||
| #endif | #endif | ||||
| #endif /* SECP256K1_RECOVERY_H */ | #endif /* SECP256K1_RECOVERY_H */ | ||||