crypto/openssh/ge25519.h

   1 /* $OpenBSD: ge25519.h,v 1.4 2015/02/16 18:26:26 miod Exp $ */
   2
   3 /*
   4  * Public Domain, Authors: Daniel J. Bernstein, Niels Duif, Tanja Lange,
   5  * Peter Schwabe, Bo-Yin Yang.
   6  * Copied from supercop-20130419/crypto_sign/ed25519/ref/ge25519.h
   7  */
   8
   9 #ifndef GE25519_H
  10 #define GE25519_H
  11
  12 #include "fe25519.h"
  13 #include "sc25519.h"
  14
  15 #define ge25519                           crypto_sign_ed25519_ref_ge25519
  16 #define ge25519_base                      crypto_sign_ed25519_ref_ge25519_base
  17 #define ge25519_unpackneg_vartime         crypto_sign_ed25519_ref_unpackneg_vartime
  18 #define ge25519_pack                      crypto_sign_ed25519_ref_pack
  19 #define ge25519_isneutral_vartime         crypto_sign_ed25519_ref_isneutral_vartime
  20 #define ge25519_double_scalarmult_vartime crypto_sign_ed25519_ref_double_scalarmult_vartime
  21 #define ge25519_scalarmult_base           crypto_sign_ed25519_ref_scalarmult_base
  22
  23 typedef struct
  24 {
  25   fe25519 x;
  26   fe25519 y;
  27   fe25519 z;
  28   fe25519 t;
  29 } ge25519;
  30
  31 extern const ge25519 ge25519_base;
  32
  33 int ge25519_unpackneg_vartime(ge25519 *r, const unsigned char p[32]);
  34
  35 void ge25519_pack(unsigned char r[32], const ge25519 *p);
  36
  37 int ge25519_isneutral_vartime(const ge25519 *p);
  38
  39 void ge25519_double_scalarmult_vartime(ge25519 *r, const ge25519 *p1, const sc25519 *s1, const ge25519 *p2, const sc25519 *s2);
  40
  41 void ge25519_scalarmult_base(ge25519 *r, const sc25519 *s);
  42
  43 #endif