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C++ secp256k1_scalar_set_b32函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中secp256k1_scalar_set_b32函数的典型用法代码示例。如果您正苦于以下问题：C++ secp256k1_scalar_set_b32函数的具体用法？C++ secp256k1_scalar_set_b32怎么用？C++ secp256k1_scalar_set_b32使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了secp256k1_scalar_set_b32函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: bench_setup

void bench_setup(void* arg) {
    bench_inv_t *data = (bench_inv_t*)arg;

    static const unsigned char init_x[32] = {
        0x02, 0x03, 0x05, 0x07, 0x0b, 0x0d, 0x11, 0x13,
        0x17, 0x1d, 0x1f, 0x25, 0x29, 0x2b, 0x2f, 0x35,
        0x3b, 0x3d, 0x43, 0x47, 0x49, 0x4f, 0x53, 0x59,
        0x61, 0x65, 0x67, 0x6b, 0x6d, 0x71, 0x7f, 0x83
    };

    static const unsigned char init_y[32] = {
        0x82, 0x83, 0x85, 0x87, 0x8b, 0x8d, 0x81, 0x83,
        0x97, 0xad, 0xaf, 0xb5, 0xb9, 0xbb, 0xbf, 0xc5,
        0xdb, 0xdd, 0xe3, 0xe7, 0xe9, 0xef, 0xf3, 0xf9,
        0x11, 0x15, 0x17, 0x1b, 0x1d, 0xb1, 0xbf, 0xd3
    };

    secp256k1_scalar_set_b32(&data->scalar_x, init_x, NULL);
    secp256k1_scalar_set_b32(&data->scalar_y, init_y, NULL);
    secp256k1_fe_set_b32(&data->fe_x, init_x);
    secp256k1_fe_set_b32(&data->fe_y, init_y);
    CHECK(secp256k1_ge_set_xo_var(&data->ge_x, &data->fe_x, 0));
    CHECK(secp256k1_ge_set_xo_var(&data->ge_y, &data->fe_y, 1));
    secp256k1_gej_set_ge(&data->gej_x, &data->ge_x);
    secp256k1_gej_set_ge(&data->gej_y, &data->ge_y);
    memcpy(data->data, init_x, 32);
    memcpy(data->data + 32, init_y, 32);
}
开发者ID:stealthylabs，项目名称:secp256k1，代码行数:28，代码来源:bench_internal.c


示例2: secp256k1_ecdsa_recover_compact

int secp256k1_ecdsa_recover_compact(const secp256k1_context_t* ctx, const unsigned char *msg32, const unsigned char *sig64, unsigned char *pubkey, int *pubkeylen, int compressed, int recid) {
    secp256k1_ge_t q;
    secp256k1_ecdsa_sig_t sig;
    secp256k1_scalar_t m;
    int ret = 0;
    int overflow = 0;
    DEBUG_CHECK(ctx != NULL);
    DEBUG_CHECK(secp256k1_ecmult_context_is_built(&ctx->ecmult_ctx));
    DEBUG_CHECK(msg32 != NULL);
    DEBUG_CHECK(sig64 != NULL);
    DEBUG_CHECK(pubkey != NULL);
    DEBUG_CHECK(pubkeylen != NULL);
    DEBUG_CHECK(recid >= 0 && recid <= 3);

    secp256k1_scalar_set_b32(&sig.r, sig64, &overflow);
    if (!overflow) {
        secp256k1_scalar_set_b32(&sig.s, sig64 + 32, &overflow);
        if (!overflow) {
            secp256k1_scalar_set_b32(&m, msg32, NULL);

            if (secp256k1_ecdsa_sig_recover(&ctx->ecmult_ctx, &sig, &q, &m, recid)) {
                ret = secp256k1_eckey_pubkey_serialize(&q, pubkey, pubkeylen, compressed);
            }
        }
    }
    return ret;
}
开发者ID:TheAltcoinBoard，项目名称:XAB，代码行数:27，代码来源:secp256k1.c


示例3: secp256k1_ecdsa_signature_load

static void secp256k1_ecdsa_signature_load(const secp256k1_context* ctx, secp256k1_scalar* r, secp256k1_scalar* s, const secp256k1_ecdsa_signature* sig) {
    (void)ctx;
    if (sizeof(secp256k1_scalar) == 32) {
        /* When the secp256k1_scalar type is exactly 32 byte, use its
         * representation inside secp256k1_ecdsa_signature, as conversion is very fast.
         * Note that secp256k1_ecdsa_signature_save must use the same representation. */
        memcpy(r, &sig->data[0], 32);
        memcpy(s, &sig->data[32], 32);
    } else {
        secp256k1_scalar_set_b32(r, &sig->data[0], NULL);
        secp256k1_scalar_set_b32(s, &sig->data[32], NULL);
    }
}
开发者ID:apoelstra，项目名称:secp256k1，代码行数:13，代码来源:secp256k1.c


示例4: secp256k1_ecdsa_verify

int secp256k1_ecdsa_verify(const secp256k1_context_t* ctx, const unsigned char *msg32, const unsigned char *sig, int siglen, const unsigned char *pubkey, int pubkeylen) {
    secp256k1_ge_t q;
    secp256k1_ecdsa_sig_t s;
    secp256k1_scalar_t m;
    int ret = -3;
    DEBUG_CHECK(ctx != NULL);
    DEBUG_CHECK(secp256k1_ecmult_context_is_built(&ctx->ecmult_ctx));
    DEBUG_CHECK(msg32 != NULL);
    DEBUG_CHECK(sig != NULL);
    DEBUG_CHECK(pubkey != NULL);

    secp256k1_scalar_set_b32(&m, msg32, NULL);

    if (secp256k1_eckey_pubkey_parse(&q, pubkey, pubkeylen)) {
        if (secp256k1_ecdsa_sig_parse(&s, sig, siglen)) {
            if (secp256k1_ecdsa_sig_verify(&ctx->ecmult_ctx, &s, &q, &m)) {
                /* success is 1, all other values are fail */
                ret = 1;
            } else {
                ret = 0;
            }
        } else {
            ret = -2;
        }
    } else {
        ret = -1;
    }

    return ret;
}
开发者ID:TheAltcoinBoard，项目名称:XAB，代码行数:30，代码来源:secp256k1.c


示例5: test_ecdsa_openssl

void test_ecdsa_openssl(void) {
    secp256k1_scalar_t key, msg;
    unsigned char message[32];
    secp256k1_rand256_test(message);
    secp256k1_scalar_set_b32(&msg, message, NULL);
    random_scalar_order_test(&key);
    secp256k1_gej_t qj;
    secp256k1_ecmult_gen(&qj, &key);
    secp256k1_ge_t q;
    secp256k1_ge_set_gej(&q, &qj);
    EC_KEY *ec_key = get_openssl_key(&key);
    CHECK(ec_key);
    unsigned char signature[80];
    unsigned int sigsize = 80;
    CHECK(ECDSA_sign(0, message, sizeof(message), signature, &sigsize, ec_key));
    secp256k1_ecdsa_sig_t sig;
    CHECK(secp256k1_ecdsa_sig_parse(&sig, signature, sigsize));
    CHECK(secp256k1_ecdsa_sig_verify(&sig, &q, &msg));
    secp256k1_scalar_t one;
    secp256k1_scalar_set_int(&one, 1);
    secp256k1_scalar_t msg2;
    secp256k1_scalar_add(&msg2, &msg, &one);
    CHECK(!secp256k1_ecdsa_sig_verify(&sig, &q, &msg2));

    random_sign(&sig, &key, &msg, NULL);
    int secp_sigsize = 80;
    CHECK(secp256k1_ecdsa_sig_serialize(signature, &secp_sigsize, &sig));
    CHECK(ECDSA_verify(0, message, sizeof(message), signature, secp_sigsize, ec_key) == 1);

    EC_KEY_free(ec_key);
}
开发者ID:13XeNuS37，项目名称:bitcoin，代码行数:31，代码来源:tests.c


示例6: run_scalar_tests

void run_scalar_tests(void) {
    for (int i = 0; i < 128 * count; i++) {
        scalar_test();
    }

    {
        /* (-1)+1 should be zero. */
        secp256k1_scalar_t s, o;
        secp256k1_scalar_set_int(&s, 1);
        secp256k1_scalar_negate(&o, &s);
        secp256k1_scalar_add(&o, &o, &s);
        CHECK(secp256k1_scalar_is_zero(&o));
    }

#ifndef USE_NUM_NONE
    {
        /* A scalar with value of the curve order should be 0. */
        secp256k1_num_t order;
        secp256k1_scalar_order_get_num(&order);
        unsigned char bin[32];
        secp256k1_num_get_bin(bin, 32, &order);
        secp256k1_scalar_t zero;
        int overflow = 0;
        secp256k1_scalar_set_b32(&zero, bin, &overflow);
        CHECK(overflow == 1);
        CHECK(secp256k1_scalar_is_zero(&zero));
    }
#endif
}
开发者ID:13XeNuS37，项目名称:bitcoin，代码行数:29，代码来源:tests.c


示例7: secp256k1_ec_pubkey_tweak_mul

int secp256k1_ec_pubkey_tweak_mul(const secp256k1_context_t* ctx, unsigned char *pubkey, int pubkeylen, const unsigned char *tweak) {
    secp256k1_ge_t p;
    secp256k1_scalar_t factor;
    int ret = 0;
    int overflow = 0;
    DEBUG_CHECK(ctx != NULL);
    DEBUG_CHECK(secp256k1_ecmult_context_is_built(&ctx->ecmult_ctx));
    DEBUG_CHECK(pubkey != NULL);
    DEBUG_CHECK(tweak != NULL);

    secp256k1_scalar_set_b32(&factor, tweak, &overflow);
    if (!overflow) {
        ret = secp256k1_eckey_pubkey_parse(&p, pubkey, pubkeylen);
        if (ret) {
            ret = secp256k1_eckey_pubkey_tweak_mul(&ctx->ecmult_ctx, &p, &factor);
        }
        if (ret) {
            int oldlen = pubkeylen;
            ret = secp256k1_eckey_pubkey_serialize(&p, pubkey, &pubkeylen, oldlen <= 33);
            VERIFY_CHECK(pubkeylen == oldlen);
        }
    }

    return ret;
}
开发者ID:TheAltcoinBoard，项目名称:XAB，代码行数:25，代码来源:secp256k1.c


示例8: secp256k1_ecdsa_sign_compact

int secp256k1_ecdsa_sign_compact(const secp256k1_context_t* ctx, const unsigned char *msg32, unsigned char *sig64, const unsigned char *seckey, secp256k1_nonce_function_t noncefp, const void* noncedata, int *recid) {
    secp256k1_ecdsa_sig_t sig;
    secp256k1_scalar_t sec, non, msg;
    int ret = 0;
    int overflow = 0;
    unsigned int count = 0;
    DEBUG_CHECK(ctx != NULL);
    DEBUG_CHECK(secp256k1_ecmult_gen_context_is_built(&ctx->ecmult_gen_ctx));
    DEBUG_CHECK(msg32 != NULL);
    DEBUG_CHECK(sig64 != NULL);
    DEBUG_CHECK(seckey != NULL);
    if (noncefp == NULL) {
        noncefp = secp256k1_nonce_function_default;
    }

    secp256k1_scalar_set_b32(&sec, seckey, &overflow);
    /* Fail if the secret key is invalid. */
    if (!overflow && !secp256k1_scalar_is_zero(&sec)) {
        secp256k1_scalar_set_b32(&msg, msg32, NULL);
        while (1) {
            unsigned char nonce32[32];
            ret = noncefp(nonce32, msg32, seckey, count, noncedata);
            if (!ret) {
                break;
            }
            secp256k1_scalar_set_b32(&non, nonce32, &overflow);
            memset(nonce32, 0, 32);
            if (!secp256k1_scalar_is_zero(&non) && !overflow) {
                if (secp256k1_ecdsa_sig_sign(&ctx->ecmult_gen_ctx, &sig, &sec, &msg, &non, recid)) {
                    break;
                }
            }
            count++;
        }
        if (ret) {
            secp256k1_scalar_get_b32(sig64, &sig.r);
            secp256k1_scalar_get_b32(sig64 + 32, &sig.s);
        }
        secp256k1_scalar_clear(&msg);
        secp256k1_scalar_clear(&non);
        secp256k1_scalar_clear(&sec);
    }
    if (!ret) {
        memset(sig64, 0, 64);
    }
    return ret;
}
开发者ID:TheAltcoinBoard，项目名称:XAB，代码行数:47，代码来源:secp256k1.c


示例9: ASSERT

bool Sec256Dsa::VerifyHashSig(RCSpan hash, const Sec256Signature& sig) {
	ASSERT(hash.size() == 32);
	secp256k1_scalar msg;
	int over;
	secp256k1_scalar_set_b32(&msg, hash.data(), &over);
	ASSERT(!over);
	return ::secp256k1_ecdsa_sig_verify(g_sec256Ctx.MultCtx(), &sig.m_r, &sig.m_s, &m_pubkey, &msg);
}
开发者ID:ufasoft，项目名称:coin，代码行数:8，代码来源:secp256k1-envelop.cpp


示例10: secp256k1_ecdsa_sign

int secp256k1_ecdsa_sign(const secp256k1_context* ctx, secp256k1_ecdsa_signature *signature, const unsigned char *msg32, const unsigned char *seckey, secp256k1_nonce_function noncefp, const void* noncedata) {
    secp256k1_scalar r, s;
    secp256k1_scalar sec, non, msg;
    int ret = 0;
    int overflow = 0;
    VERIFY_CHECK(ctx != NULL);
    ARG_CHECK(secp256k1_ecmult_gen_context_is_built(&ctx->ecmult_gen_ctx));
    ARG_CHECK(msg32 != NULL);
    ARG_CHECK(signature != NULL);
    ARG_CHECK(seckey != NULL);
    if (noncefp == NULL) {
        noncefp = secp256k1_nonce_function_default;
    }

    secp256k1_scalar_set_b32(&sec, seckey, &overflow);
    /* Fail if the secret key is invalid. */
    if (!overflow && !secp256k1_scalar_is_zero(&sec)) {
        unsigned char nonce32[32];
        unsigned int count = 0;
        secp256k1_scalar_set_b32(&msg, msg32, NULL);
        while (1) {
            ret = noncefp(nonce32, msg32, seckey, NULL, (void*)noncedata, count);
            if (!ret) {
                break;
            }
            secp256k1_scalar_set_b32(&non, nonce32, &overflow);
            if (!overflow && !secp256k1_scalar_is_zero(&non)) {
                if (secp256k1_ecdsa_sig_sign(&ctx->ecmult_gen_ctx, &r, &s, &sec, &msg, &non, NULL)) {
                    break;
                }
            }
            count++;
        }
        memset(nonce32, 0, 32);
        secp256k1_scalar_clear(&msg);
        secp256k1_scalar_clear(&non);
        secp256k1_scalar_clear(&sec);
    }
    if (ret) {
        secp256k1_ecdsa_signature_save(signature, &r, &s);
    } else {
        memset(signature, 0, sizeof(*signature));
    }
    return ret;
}
开发者ID:apoelstra，项目名称:secp256k1，代码行数:45，代码来源:secp256k1.c


示例11: r_from_k

void r_from_k(secp256k1_scalar *r, const secp256k1_ge *group, int k) {
    secp256k1_fe x;
    unsigned char x_bin[32];
    k %= EXHAUSTIVE_TEST_ORDER;
    x = group[k].x;
    secp256k1_fe_normalize(&x);
    secp256k1_fe_get_b32(x_bin, &x);
    secp256k1_scalar_set_b32(r, x_bin, NULL);
}
开发者ID:bitcoin-core，项目名称:secp256k1，代码行数:9，代码来源:tests_exhaustive.c


示例12: secp256k1_ec_privkey_negate

int secp256k1_ec_privkey_negate(const secp256k1_context* ctx, unsigned char *seckey) {
    secp256k1_scalar sec;
    VERIFY_CHECK(ctx != NULL);
    ARG_CHECK(seckey != NULL);

    secp256k1_scalar_set_b32(&sec, seckey, NULL);
    secp256k1_scalar_negate(&sec, &sec);
    secp256k1_scalar_get_b32(seckey, &sec);

    return 1;
}
开发者ID:apoelstra，项目名称:secp256k1，代码行数:11，代码来源:secp256k1.c


示例13: secp256k1_ecdsa_signature_parse_compact

int secp256k1_ecdsa_signature_parse_compact(const secp256k1_context* ctx, secp256k1_ecdsa_signature* sig, const unsigned char *input64) {
    secp256k1_scalar r, s;
    int ret = 1;
    int overflow = 0;

    VERIFY_CHECK(ctx != NULL);
    ARG_CHECK(sig != NULL);
    ARG_CHECK(input64 != NULL);

    secp256k1_scalar_set_b32(&r, &input64[0], &overflow);
    ret &= !overflow;
    secp256k1_scalar_set_b32(&s, &input64[32], &overflow);
    ret &= !overflow;
    if (ret) {
        secp256k1_ecdsa_signature_save(sig, &r, &s);
    } else {
        memset(sig, 0, sizeof(*sig));
    }
    return ret;
}
开发者ID:apoelstra，项目名称:secp256k1，代码行数:20，代码来源:secp256k1.c


示例14: random_scalar_order

void random_scalar_order(secp256k1_scalar_t *num) {
    do {
        unsigned char b32[32];
        secp256k1_rand256(b32);
        int overflow = 0;
        secp256k1_scalar_set_b32(num, b32, &overflow);
        if (overflow || secp256k1_scalar_is_zero(num))
            continue;
        break;
    } while(1);
}
开发者ID:13XeNuS37，项目名称:bitcoin，代码行数:11，代码来源:tests.c


示例15: secp256k1_ec_privkey_tweak_mul

int secp256k1_ec_privkey_tweak_mul(const secp256k1_context_t* ctx, unsigned char *seckey, const unsigned char *tweak) {
    secp256k1_scalar_t factor;
    secp256k1_scalar_t sec;
    int ret = 0;
    int overflow = 0;
    DEBUG_CHECK(ctx != NULL);
    DEBUG_CHECK(seckey != NULL);
    DEBUG_CHECK(tweak != NULL);
    (void)ctx;

    secp256k1_scalar_set_b32(&factor, tweak, &overflow);
    secp256k1_scalar_set_b32(&sec, seckey, NULL);
    ret = secp256k1_eckey_privkey_tweak_mul(&sec, &factor) && !overflow;
    if (ret) {
        secp256k1_scalar_get_b32(seckey, &sec);
    }

    secp256k1_scalar_clear(&sec);
    secp256k1_scalar_clear(&factor);
    return ret;
}
开发者ID:TheAltcoinBoard，项目名称:XAB，代码行数:21，代码来源:secp256k1.c


示例16: secp256k1_ec_privkey_tweak_mul

int secp256k1_ec_privkey_tweak_mul(const secp256k1_context* ctx, unsigned char *seckey, const unsigned char *tweak) {
    secp256k1_scalar factor;
    secp256k1_scalar sec;
    int ret = 0;
    int overflow = 0;
    VERIFY_CHECK(ctx != NULL);
    ARG_CHECK(seckey != NULL);
    ARG_CHECK(tweak != NULL);

    secp256k1_scalar_set_b32(&factor, tweak, &overflow);
    secp256k1_scalar_set_b32(&sec, seckey, NULL);
    ret = !overflow && secp256k1_eckey_privkey_tweak_mul(&sec, &factor);
    memset(seckey, 0, 32);
    if (ret) {
        secp256k1_scalar_get_b32(seckey, &sec);
    }

    secp256k1_scalar_clear(&sec);
    secp256k1_scalar_clear(&factor);
    return ret;
}
开发者ID:apoelstra，项目名称:secp256k1，代码行数:21，代码来源:secp256k1.c


示例17: secp256k1_ec_seckey_verify

int secp256k1_ec_seckey_verify(const secp256k1_context* ctx, const unsigned char *seckey) {
    secp256k1_scalar sec;
    int ret;
    int overflow;
    VERIFY_CHECK(ctx != NULL);
    ARG_CHECK(seckey != NULL);

    secp256k1_scalar_set_b32(&sec, seckey, &overflow);
    ret = !overflow && !secp256k1_scalar_is_zero(&sec);
    secp256k1_scalar_clear(&sec);
    return ret;
}
开发者ID:apoelstra，项目名称:secp256k1，代码行数:12，代码来源:secp256k1.c


示例18: secp256k1_ec_seckey_verify

int secp256k1_ec_seckey_verify(const secp256k1_context_t* ctx, const unsigned char *seckey) {
    secp256k1_scalar_t sec;
    int ret;
    int overflow;
    DEBUG_CHECK(ctx != NULL);
    DEBUG_CHECK(seckey != NULL);
    (void)ctx;

    secp256k1_scalar_set_b32(&sec, seckey, &overflow);
    ret = !secp256k1_scalar_is_zero(&sec) && !overflow;
    secp256k1_scalar_clear(&sec);
    return ret;
}
开发者ID:TheAltcoinBoard，项目名称:XAB，代码行数:13，代码来源:secp256k1.c


示例19: secp256k1_ec_privkey_tweak_add

int secp256k1_ec_privkey_tweak_add(const secp256k1_context* ctx, unsigned char *seckey, const unsigned char *tweak) {
    secp256k1_scalar term;
    secp256k1_scalar sec;
    int ret = 0;
    int overflow = 0;
    VERIFY_CHECK(ctx != NULL);
    ARG_CHECK(seckey != NULL);
    ARG_CHECK(tweak != NULL);
    (void)ctx;

    secp256k1_scalar_set_b32(&term, tweak, &overflow);
    secp256k1_scalar_set_b32(&sec, seckey, NULL);

    ret = !overflow && secp256k1_eckey_privkey_tweak_add(&sec, &term);
    if (ret) {
        secp256k1_scalar_get_b32(seckey, &sec);
    }

    secp256k1_scalar_clear(&sec);
    secp256k1_scalar_clear(&term);
    return ret;
}
开发者ID:aussiehash，项目名称:supervanitygen，代码行数:22，代码来源:secp256k1.c


示例20: secp256k1_ec_privkey_export

int secp256k1_ec_privkey_export(const secp256k1_context* ctx, unsigned char *privkey, size_t *privkeylen, const unsigned char *seckey, unsigned int flags) {
    secp256k1_scalar key;
    int ret = 0;
    VERIFY_CHECK(ctx != NULL);
    ARG_CHECK(seckey != NULL);
    ARG_CHECK(privkey != NULL);
    ARG_CHECK(privkeylen != NULL);
    ARG_CHECK(secp256k1_ecmult_gen_context_is_built(&ctx->ecmult_gen_ctx));

    secp256k1_scalar_set_b32(&key, seckey, NULL);
    ret = secp256k1_eckey_privkey_serialize(&ctx->ecmult_gen_ctx, privkey, privkeylen, &key, flags);
    secp256k1_scalar_clear(&key);
    return ret;
}
开发者ID:aussiehash，项目名称:supervanitygen，代码行数:14，代码来源:secp256k1.c



注：本文中的secp256k1_scalar_set_b32函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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