serval-dna/nacl/nacl-20110221/tests/scalarmult7.cpp

#include <string>
using std::string;
#include <stdio.h>
#include "crypto_scalarmult_curve25519.h"

char alicesk_bytes[32] = {
 0x77,0x07,0x6d,0x0a,0x73,0x18,0xa5,0x7d
,0x3c,0x16,0xc1,0x72,0x51,0xb2,0x66,0x45
,0xdf,0x4c,0x2f,0x87,0xeb,0xc0,0x99,0x2a
,0xb1,0x77,0xfb,0xa5,0x1d,0xb9,0x2c,0x2a
} ;

char bobpk_bytes[32] = {
 0xde,0x9e,0xdb,0x7d,0x7b,0x7d,0xc1,0xb4
,0xd3,0x5b,0x61,0xc2,0xec,0xe4,0x35,0x37
,0x3f,0x83,0x43,0xc8,0x5b,0x78,0x67,0x4d
,0xad,0xfc,0x7e,0x14,0x6f,0x88,0x2b,0x4f
} ;

main()
{
  int i;
  string alicesk(alicesk_bytes,sizeof alicesk_bytes);
  string bobpk(bobpk_bytes,sizeof bobpk_bytes);
  string k = crypto_scalarmult_curve25519(alicesk,bobpk);
  for (i = 0;i < k.size();++i) {
    if (i > 0) printf(","); else printf(" ");
    printf("0x%02x",(unsigned int) (unsigned char) k[i]);
    if (i % 8 == 7) printf("\n");
  }
  return 0;
}