24 lines
414 B
C
24 lines
414 B
C
#include "ed25519.h"
|
|
#include "sha512.h"
|
|
#include "ge.h"
|
|
|
|
int ed25519_sign_keypair(unsigned char *pk, unsigned char *sk, unsigned char *seed)
|
|
{
|
|
unsigned char h[64];
|
|
ge_p3 A;
|
|
int i;
|
|
|
|
sha512(h,seed,32);
|
|
h[0] &= 248;
|
|
h[31] &= 63;
|
|
h[31] |= 64;
|
|
|
|
ge_scalarmult_base(&A,h);
|
|
ge_p3_tobytes(pk,&A);
|
|
|
|
for (i = 0;i < 32;++i) sk[i] = seed[i];
|
|
for (i = 0;i < 32;++i) sk[32 + i] = pk[i];
|
|
|
|
return 0;
|
|
}
|