1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950 |
- /* Modified for Tor: new API, 32-byte secret keys. */
- #include <string.h>
- #include "randombytes.h"
- #include "crypto_sign.h"
- #include "crypto_hash_sha512.h"
- #include "ge.h"
- int
- crypto_sign_seckey(unsigned char *sk)
- {
- unsigned char seed[32];
- randombytes(seed,32);
- crypto_sign_seckey_expand(sk, seed);
- memwipe(seed, 0, 32);
- return 0;
- }
- int crypto_sign_seckey_expand(unsigned char *sk, const unsigned char *skseed)
- {
- crypto_hash_sha512(sk,skseed,32);
- sk[0] &= 248;
- sk[31] &= 63;
- sk[31] |= 64;
- return 0;
- }
- int crypto_sign_pubkey(unsigned char *pk,const unsigned char *sk)
- {
- ge_p3 A;
- ge_scalarmult_base(&A,sk);
- ge_p3_tobytes(pk,&A);
- return 0;
- }
- int crypto_sign_keypair(unsigned char *pk,unsigned char *sk)
- {
- crypto_sign_seckey(sk);
- crypto_sign_pubkey(pk, sk);
- return 0;
- }
|