libsodium/test/core1.c

#include <stdio.h>
#include "crypto_core_hsalsa20.h"

unsigned char shared[32] = {
 0x4a,0x5d,0x9d,0x5b,0xa4,0xce,0x2d,0xe1
,0x72,0x8e,0x3b,0xf4,0x80,0x35,0x0f,0x25
,0xe0,0x7e,0x21,0xc9,0x47,0xd1,0x9e,0x33
,0x76,0xf0,0x9b,0x3c,0x1e,0x16,0x17,0x42
} ;

unsigned char zero[32] = { 0 };

unsigned char c[16] = {
 0x65,0x78,0x70,0x61,0x6e,0x64,0x20,0x33
,0x32,0x2d,0x62,0x79,0x74,0x65,0x20,0x6b
} ;

unsigned char firstkey[32];

int main(void)
{
  int i;
  crypto_core_hsalsa20(firstkey,zero,shared,c);
  for (i = 0;i < 32;++i) {
    if (i > 0) printf(","); else printf(" ");
    printf("0x%02x",(unsigned int) firstkey[i]);
    if (i % 8 == 7) printf("\n");
  }
  return 0;
}