mirror of
https://github.com/guanzhi/GmSSL.git
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99 lines
2.3 KiB
C
99 lines
2.3 KiB
C
/*
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* cc -Wall -I ../../include/ sm2test.c ../../libcrypto.a
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*/
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#include <stdio.h>
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#include <string.h>
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#include <strings.h>
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#include <openssl/sm2.h>
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#include <openssl/evp.h>
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#include <openssl/rand.h>
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static int test_sm2_sign(void)
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{
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int rv;
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EC_KEY *ec_key = NULL;
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unsigned char dgst[32];
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ECDSA_SIG *sig = NULL;
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unsigned char sigbuf[128];
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unsigned int siglen;
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ec_key = EC_KEY_new_by_curve_name(NID_sm2p256v1);
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OPENSSL_assert(ec_key);
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rv = EC_KEY_generate_key(ec_key);
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OPENSSL_assert(rv == 1);
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RAND_bytes(dgst, sizeof(dgst));
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sig = SM2_do_sign(dgst, (int)sizeof(dgst), ec_key);
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OPENSSL_assert(sig);
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rv = SM2_do_verify(dgst, (int)sizeof(dgst), sig, ec_key);
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OPENSSL_assert(rv == 1);
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rv = SM2_sign(0, dgst, sizeof(dgst), sigbuf, &siglen, ec_key);
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OPENSSL_assert(rv == 1);
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rv = SM2_verify(0, dgst, sizeof(dgst), sigbuf, siglen, ec_key);
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OPENSSL_assert(rv == 1);
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EC_KEY_free(ec_key);
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ECDSA_SIG_free(sig);
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printf("%s() success\n", __FUNCTION__);
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return 0;
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}
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static int test_sm2_enc(void)
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{
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int rv;
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EC_KEY *ec_key = NULL;
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char *msg = "Hello world!";
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SM2_CIPHERTEXT_VALUE *cv = NULL;
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unsigned char ctbuf[512];
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unsigned char ptbuf[512];
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size_t len, len2;
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BIO *bio = BIO_new_fp(stdout, BIO_NOCLOSE);
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ec_key = EC_KEY_new_by_curve_name(NID_sm2p256v1);
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OPENSSL_assert(ec_key);
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rv = EC_KEY_generate_key(ec_key);
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OPENSSL_assert(rv == 1);
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cv = SM2_do_encrypt(EVP_sm3(), EVP_sm3(), (unsigned char *)msg, (size_t)strlen(msg), ec_key);
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OPENSSL_assert(cv);
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SM2_CIPHERTEXT_VALUE_print(bio, EC_KEY_get0_group(ec_key), cv, 0, 0);
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bzero(ptbuf, sizeof(ptbuf));
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len = sizeof(ptbuf);
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rv = SM2_do_decrypt(EVP_sm3(), EVP_sm3(), cv, ptbuf, &len, ec_key);
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OPENSSL_assert(rv == 1);
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len = sizeof(ctbuf);
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rv = SM2_encrypt(EVP_sm3(), EVP_sm3(),
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SM2_DEFAULT_POINT_CONVERSION_FORM,
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(unsigned char *)msg, (size_t)strlen(msg), ctbuf, &len, ec_key);
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OPENSSL_assert(rv == 1);
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bzero(ptbuf, sizeof(ptbuf));
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len2 = sizeof(ptbuf);
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rv = SM2_decrypt(EVP_sm3(), EVP_sm3(),
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SM2_DEFAULT_POINT_CONVERSION_FORM,
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ctbuf, len, ptbuf, &len2, ec_key);
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OPENSSL_assert(rv == 1);
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/*
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printf("original plaintext: %s\n", msg);
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printf("decrypted plaintext: %s\n", ptbuf);
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*/
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printf("%s() success\n", __FUNCTION__);
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return 0;
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}
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int main(int argc, char **argv)
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{
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test_sm2_sign();
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test_sm2_enc();
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return 0;
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}
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