openssh/sc25519.h
Damien Miller 8a56dc2b6b - markus@cvs.openbsd.org 2013/12/09 11:03:45
[blocks.c ed25519.c fe25519.c fe25519.h ge25519.c ge25519.h]
     [ge25519_base.data hash.c sc25519.c sc25519.h verify.c]
     Add Authors for the public domain ed25519/nacl code.
     see also http://nacl.cr.yp.to/features.html
        All of the NaCl software is in the public domain.
     and http://ed25519.cr.yp.to/software.html
        The Ed25519 software is in the public domain.
2013-12-18 17:48:11 +11:00

81 lines
2.8 KiB
C

/* $OpenBSD: sc25519.h,v 1.3 2013/12/09 11:03:45 markus Exp $ */
/*
* Public Domain, Authors: Daniel J. Bernstein, Niels Duif, Tanja Lange,
* Peter Schwabe, Bo-Yin Yang.
* Copied from supercop-20130419/crypto_sign/ed25519/ref/sc25519.h
*/
#ifndef SC25519_H
#define SC25519_H
#include "crypto_api.h"
#define sc25519 crypto_sign_ed25519_ref_sc25519
#define shortsc25519 crypto_sign_ed25519_ref_shortsc25519
#define sc25519_from32bytes crypto_sign_ed25519_ref_sc25519_from32bytes
#define shortsc25519_from16bytes crypto_sign_ed25519_ref_shortsc25519_from16bytes
#define sc25519_from64bytes crypto_sign_ed25519_ref_sc25519_from64bytes
#define sc25519_from_shortsc crypto_sign_ed25519_ref_sc25519_from_shortsc
#define sc25519_to32bytes crypto_sign_ed25519_ref_sc25519_to32bytes
#define sc25519_iszero_vartime crypto_sign_ed25519_ref_sc25519_iszero_vartime
#define sc25519_isshort_vartime crypto_sign_ed25519_ref_sc25519_isshort_vartime
#define sc25519_lt_vartime crypto_sign_ed25519_ref_sc25519_lt_vartime
#define sc25519_add crypto_sign_ed25519_ref_sc25519_add
#define sc25519_sub_nored crypto_sign_ed25519_ref_sc25519_sub_nored
#define sc25519_mul crypto_sign_ed25519_ref_sc25519_mul
#define sc25519_mul_shortsc crypto_sign_ed25519_ref_sc25519_mul_shortsc
#define sc25519_window3 crypto_sign_ed25519_ref_sc25519_window3
#define sc25519_window5 crypto_sign_ed25519_ref_sc25519_window5
#define sc25519_2interleave2 crypto_sign_ed25519_ref_sc25519_2interleave2
typedef struct
{
crypto_uint32 v[32];
}
sc25519;
typedef struct
{
crypto_uint32 v[16];
}
shortsc25519;
void sc25519_from32bytes(sc25519 *r, const unsigned char x[32]);
void shortsc25519_from16bytes(shortsc25519 *r, const unsigned char x[16]);
void sc25519_from64bytes(sc25519 *r, const unsigned char x[64]);
void sc25519_from_shortsc(sc25519 *r, const shortsc25519 *x);
void sc25519_to32bytes(unsigned char r[32], const sc25519 *x);
int sc25519_iszero_vartime(const sc25519 *x);
int sc25519_isshort_vartime(const sc25519 *x);
int sc25519_lt_vartime(const sc25519 *x, const sc25519 *y);
void sc25519_add(sc25519 *r, const sc25519 *x, const sc25519 *y);
void sc25519_sub_nored(sc25519 *r, const sc25519 *x, const sc25519 *y);
void sc25519_mul(sc25519 *r, const sc25519 *x, const sc25519 *y);
void sc25519_mul_shortsc(sc25519 *r, const sc25519 *x, const shortsc25519 *y);
/* Convert s into a representation of the form \sum_{i=0}^{84}r[i]2^3
* with r[i] in {-4,...,3}
*/
void sc25519_window3(signed char r[85], const sc25519 *s);
/* Convert s into a representation of the form \sum_{i=0}^{50}r[i]2^5
* with r[i] in {-16,...,15}
*/
void sc25519_window5(signed char r[51], const sc25519 *s);
void sc25519_2interleave2(unsigned char r[127], const sc25519 *s1, const sc25519 *s2);
#endif