libsodium/test/default/auth2.c

/* "Test Case AUTH256-4" from RFC 4868 */

#define TEST_NAME "auth2"
#include "cmptest.h"

unsigned char key[32] = {
 0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08
,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0x10
,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18
,0x19,0x1a,0x1b,0x1c,0x1d,0x1e,0x1f,0x20
} ;

unsigned char c[50] = {
 0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd
,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd
,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd
,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd
,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd
,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd
,0xcd,0xcd
} ;

unsigned char a[32];

int main(void)
{
    int i;

    crypto_auth_hmacsha256(a,c,sizeof c,key);
    for (i = 0;i < 32;++i) {
        printf(",0x%02x",(unsigned int) a[i]);
        if (i % 8 == 7) printf("\n");
    }
    return 0;
}