libsodium/test/default/auth.c

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#include <stdio.h>
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#define TEST_NAME "auth"
#include "cmptest.h"
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/* "Test Case 2" from RFC 4231 */
unsigned char key[32] = "Jefe";
unsigned char c[28] = "what do ya want for nothing?";
unsigned char a[32];
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int main(void)
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{
int i;
crypto_auth_hmacsha512256(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;
}