perform cheap checks first
[tinc] / src / ed25519 / keypair.c
1 #include "ed25519.h"
2 #include "sha512.h"
3 #include "ge.h"
4
5
6 void ed25519_create_keypair(unsigned char *public_key, unsigned char *private_key, const unsigned char *seed) {
7         ge_p3 A;
8
9         sha512(seed, 32, private_key);
10         private_key[0] &= 248;
11         private_key[31] &= 63;
12         private_key[31] |= 64;
13
14         ge_scalarmult_base(&A, private_key);
15         ge_p3_tobytes(public_key, &A);
16 }