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https://github.com/guanzhi/GmSSL.git
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40 lines
951 B
C
40 lines
951 B
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/sm2.h>
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#include <gmssl/error.h>
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int main(void)
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{
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SM2_KEY sm2_key;
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SM2_KEY pub_key;
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unsigned char plaintext[SM2_MAX_PLAINTEXT_SIZE];
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unsigned char ciphertext[SM2_MAX_CIPHERTEXT_SIZE];
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size_t len;
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sm2_key_generate(&sm2_key);
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memcpy(&pub_key, &sm2_key, sizeof(SM2_POINT));
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sm2_encrypt(&pub_key, (uint8_t *)"hello world", strlen("hello world"), ciphertext, &len);
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format_bytes(stdout, 0, 0, "ciphertext", ciphertext, len);
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if (sm2_decrypt(&sm2_key, ciphertext, len, plaintext, &len) != 1) {
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fprintf(stderr, "error\n");
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return 1;
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}
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plaintext[len] = 0;
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printf("plaintext: %s\n", plaintext);
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return 0;
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}
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