Differential D2457 Diff 8183 src/secp256k1/src/modules/schnorr/main_impl.h

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src/secp256k1/src/modules/schnorr/main_impl.h

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	int secp256k1_schnorr_sign(			int secp256k1_schnorr_sign(
	const secp256k1_context *ctx,			const secp256k1_context *ctx,
	unsigned char *sig64,			unsigned char *sig64,
	const unsigned char *msg32,			const unsigned char *msg32,
	const unsigned char *seckey,			const unsigned char *seckey,
	secp256k1_nonce_function noncefp,			secp256k1_nonce_function noncefp,
	const void *ndata			const void *ndata
	) {			) {
	secp256k1_scalar sec, non;			secp256k1_scalar sec;
	secp256k1_pubkey pubkey;			secp256k1_pubkey pubkey;
	secp256k1_ge p;			secp256k1_ge p;
	int ret = 0;			int ret = 0;
	VERIFY_CHECK(ctx != NULL);			VERIFY_CHECK(ctx != NULL);
	ARG_CHECK(secp256k1_ecmult_gen_context_is_built(&ctx->ecmult_gen_ctx));			ARG_CHECK(secp256k1_ecmult_gen_context_is_built(&ctx->ecmult_gen_ctx));
	ARG_CHECK(msg32 != NULL);			ARG_CHECK(msg32 != NULL);
	ARG_CHECK(sig64 != NULL);			ARG_CHECK(sig64 != NULL);
	ARG_CHECK(seckey != NULL);			ARG_CHECK(seckey != NULL);

	if (!secp256k1_ec_pubkey_create(ctx, &pubkey, seckey)) {			if (!secp256k1_ec_pubkey_create(ctx, &pubkey, seckey)) {
	return 0;			return 0;
	}			}

	if (!secp256k1_schnorr_sig_generate_k(&non, msg32, seckey, noncefp, ndata)) {
	secp256k1_scalar_clear(&non);
	return 0;
	}

	secp256k1_pubkey_load(ctx, &p, &pubkey);			secp256k1_pubkey_load(ctx, &p, &pubkey);
	secp256k1_scalar_set_b32(&sec, seckey, NULL);			secp256k1_scalar_set_b32(&sec, seckey, NULL);
	ret = secp256k1_schnorr_sig_sign(&ctx->ecmult_gen_ctx, sig64, &sec, &p, &non, msg32);			ret = secp256k1_schnorr_sig_sign(&ctx->ecmult_gen_ctx, sig64, msg32, &sec, &p, noncefp, ndata);
	if (!ret) {			if (!ret) {
	memset(sig64, 0, 64);			memset(sig64, 0, 64);
	}			}

	secp256k1_scalar_clear(&non);
	secp256k1_scalar_clear(&sec);			secp256k1_scalar_clear(&sec);
	return ret;			return ret;
	}			}

	#endif			#endif