mirror of
https://github.com/guanzhi/GmSSL.git
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126 lines
2.6 KiB
C
126 lines
2.6 KiB
C
/*
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* Copyright 2014-2026 The GmSSL Project. All Rights Reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the License); you may
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* not use this file except in compliance with the License.
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <gmssl/bn.h>
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#include <gmssl/hex.h>
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#include <gmssl/rand.h>
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#include <gmssl/error.h>
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#include <gmssl/ecdsa.h>
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/*
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d 0x5
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xP 0x51590b7a515140d2d784c85608668fdfef8c82fd1f5be52421554a0dc3d033ed
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yP 0xe0c17da8904a727d8ae1bf36bf8a79260d012f00d4d80888d1d0bb44fda16da4
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x1 0x5ecbe4d1a6330a44c8f7ef951d4bf165e6c6b721efada985fb41661bc6e7fd6c
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r 0x5ecbe4d1a6330a44c8f7ef951d4bf165e6c6b721efada985fb41661bc6e7fd6c
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s 0x48a928086a55111cf99d39f886293cff41a8dda957c43b0851846697f76199ef
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x1 0x5ecbe4d1a6330a44c8f7ef951d4bf165e6c6b721efada985fb41661bc6e7fd6c
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v 0x5ecbe4d1a6330a44c8f7ef951d4bf165e6c6b721efada985fb41661bc6e7fd6c
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*/
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// 这个签名是没有问题的，看来验证签名是有问题的
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static int test_ecdsa(void)
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{
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SECP256R1_KEY key;
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ECDSA_SIGNATURE sig;
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uint8_t dgst[32];
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secp256r1_t d;
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secp256r1_t k;
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// d = 5
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bn_set_word(d, 5, 8);
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secp256r1_key_set_private_key(&key, d);
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secp256r1_key_generate(&key);
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secp256r1_private_key_print(stderr, 0, 0, "private_key", &key);
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// k = 3
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bn_set_word(k, 3, 8);
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// e = 2
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memset(dgst, 0, 31);
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dgst[31] = 2;
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/*
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if (ecdsa_do_sign_ex(&key, k, dgst, &sig) != 1) {
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error_print();
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return -1;
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}
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*/
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if (ecdsa_do_sign(&key, dgst, &sig) != 1) {
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error_print();
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return -1;
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}
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secp256r1_print(stderr, 0, 0, "r", sig.r);
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secp256r1_print(stderr, 0, 0, "s", sig.s);
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if (ecdsa_do_verify(&key, dgst, &sig) != 1) {
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error_print();
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return -1;
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}
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printf("%s() ok\n", __FUNCTION__);
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return 1;
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}
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static int test_ecdsa_verify_infinity(void)
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{
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SECP256R1_KEY key;
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ECDSA_SIGNATURE sig;
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secp256r1_t d;
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uint8_t dgst[32];
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size_t dgstlen;
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if (secp256r1_set_one(d) != 1
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|| secp256r1_key_set_private_key(&key, d) != 1
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|| secp256r1_set_one(sig.r) != 1
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|| secp256r1_set_one(sig.s) != 1) {
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error_print();
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return -1;
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}
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// e = n - 1, so u1 * G + u2 * Q = (n - 1)G + G = O for Q = G
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if (hex_to_bytes("FFFFFFFF00000000FFFFFFFFFFFFFFFFBCE6FAADA7179E84F3B9CAC2FC632550",
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64, dgst, &dgstlen) != 1
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|| dgstlen != sizeof(dgst)) {
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error_print();
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return -1;
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}
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if (ecdsa_do_verify(&key, dgst, &sig) != 0) {
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error_print();
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return -1;
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}
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printf("%s() ok\n", __FUNCTION__);
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return 1;
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}
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int main(void)
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{
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if (test_ecdsa() != 1) goto err;
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if (test_ecdsa_verify_infinity() != 1) goto err;
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printf("%s all tests passed\n", __FILE__);
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return 0;
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err:
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error_print();
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return 1;
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}
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