mirror of
https://github.com/guanzhi/GmSSL.git
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33 lines
626 B
C
33 lines
626 B
C
#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <gmssl/mem.h>
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#include <gmssl/sm2.h>
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int main(void)
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{
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SM2_KEY sm2_key;
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char *password = "123456";
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unsigned char buf[512];
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unsigned char *p;
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size_t len;
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printf("Read SM2 private key file (PEM) from stdin ...\n");
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if (sm2_private_key_info_decrypt_from_pem(&sm2_key, password, stdin) != 1) {
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fprintf(stderr, "error\n");
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return 1;
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}
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p = buf;
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len = 0;
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if (sm2_private_key_to_der(&sm2_key, &p, &len) != 1) {
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fprintf(stderr, "error\n");
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return 1;
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}
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fwrite(buf, 1, len, stdout);
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gmssl_secure_clear(&sm2_key, sizeof(sm2_key));
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return 0;
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}
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