mirror of
https://github.com/guanzhi/GmSSL.git
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54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
/*
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* Copyright 2022 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 <gmssl/sm9.h>
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#include <gmssl/error.h>
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int main(void)
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{
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SM9_SIGN_MASTER_KEY sign_master;
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SM9_SIGN_MASTER_KEY sign_master_public;
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SM9_SIGN_KEY sign_key;
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SM9_SIGN_CTX sign_ctx;
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const char *id = "Alice";
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uint8_t sig[SM9_SIGNATURE_SIZE];
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size_t siglen;
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uint8_t buf[512];
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uint8_t *p = buf;
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const uint8_t *cp = buf;
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size_t len;
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int ret;
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sm9_sign_master_key_generate(&sign_master);
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sm9_sign_master_key_extract_key(&sign_master, id, strlen(id), &sign_key);
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sm9_sign_init(&sign_ctx);
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sm9_sign_update(&sign_ctx, (uint8_t *)"hello world", strlen("hello world"));
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sm9_sign_finish(&sign_ctx, &sign_key, sig, &siglen);
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format_bytes(stdout, 0, 0, "signature", sig, siglen);
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sm9_sign_master_public_key_to_der(&sign_master, &p, &len);
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sm9_sign_master_public_key_from_der(&sign_master_public, &cp, &len);
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sm9_verify_init(&sign_ctx);
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sm9_verify_update(&sign_ctx, (uint8_t *)"hello world", strlen("hello world"));
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ret = sm9_verify_finish(&sign_ctx, sig, siglen, &sign_master_public, id, strlen(id));
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printf("verify %s\n", ret == 1 ? "success" : "failure");
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return 0;
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}
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