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Create demo_sm2_public_key_digest.c (#1430)

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intruders
2023-03-14 22:23:00 +08:00
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parent 352ddc1739
commit 2167dda613
1 changed files with 41 additions and 0 deletions
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demos/src/demo_sm2_public_key_digest.c Normal file
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/*
* Copyright 2014-2022 The GmSSL Project. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
*
* http://www.apache.org/licenses/LICENSE-2.0
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <gmssl/mem.h>
#include <gmssl/sm2.h>
#include <gmssl/sm3.h>
int main(void){
SM2_KEY sm2_key;
uint8_t dgst[32];
int i;
printf("Read SM2 public key file (PEM) from stdin ...\n");
if (sm2_public_key_info_from_pem(&sm2_key, stdin) != 1) {
fprintf(stderr, "error\n");
return 1;
}
if (sm2_public_key_digest(&sm2_key, dgst) != 1) {
fprintf(stderr, "error\n");
return 1;
}
for (i = 0; i < sizeof(dgst); i++) {
printf("%02x", dgst[i]);
}
printf("\n");
gmssl_secure_clear(&sm2_key, sizeof(sm2_key));
return 0;
}