danicoin/src/crypto/crypto_ops_builder/ref10CommentedCombined/keypair.c
2015-10-26 18:00:53 +02:00

23 lines
415 B
C

#include <string.h>
#include "randombytes.h"
#include "crypto_sign.h"
#include "crypto_hash_sha512.h"
#include "ge.h"
int crypto_sign_keypair(unsigned char *pk,unsigned char *sk)
{
unsigned char az[64];
ge_p3 A;
randombytes(sk,32);
crypto_hash_sha512(az,sk,32);
az[0] &= 248;
az[31] &= 63;
az[31] |= 64;
ge_scalarmult_base(&A,az);
ge_p3_tobytes(pk,&A);
memmove(sk + 32,pk,32);
return 0;
}