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Add ZUC demo

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This commit is contained in:
Zhi Guan
2022-08-01 15:59:23 +08:00
parent ec94c930b3
commit 858f8f8833
2 changed files with 49 additions and 0 deletions
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8
demos/zuc/Makefile Normal file
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all:
cc zuc_demo.c -lgmssl -o zuc_encrypt_demo
cc zuc_demo.c -lgmssl -o zuc_decrypt_demo
clean:
rm -fr zuc_encrypt_demo
rm -fr zuc_decrypt_demo

41
demos/zuc/zuc_demo.c Normal file
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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <gmssl/zuc.h>
int main(void)
{
ZUC_CTX zuc_ctx;
unsigned char key[16] = {
0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,
0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,
};
unsigned char iv[16] = {
0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,
0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,
};
unsigned char inbuf[1024];
unsigned char outbuf[1024 + 32];
ssize_t inlen;
size_t outlen;
if (zuc_encrypt_init(&zuc_ctx, key, iv) != 1) {
fprintf(stderr, "%s %d: error\n", __FILE__, __LINE__);
return 1;
}
while ((inlen = fread(inbuf, 1, sizeof(inbuf), stdin)) > 0) {
if (zuc_encrypt_update(&zuc_ctx, inbuf, inlen, outbuf, &outlen) != 1) {
fprintf(stderr, "%s %d: error\n", __FILE__, __LINE__);
return 1;
}
fwrite(outbuf, 1, outlen, stdout);
}
if (zuc_encrypt_finish(&zuc_ctx, outbuf, &outlen) != 1) {
fprintf(stderr, "%s %d: error\n", __FILE__, __LINE__);
return 1;
}
fwrite(outbuf, 1, outlen, stdout);
return 0;
}