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Revision 1.3, Mon Dec 9 11:03:45 2013 UTC (10 years, 5 months ago) by markus
Branch: MAIN
CVS Tags: OPENBSD_7_2_BASE, OPENBSD_7_2, OPENBSD_7_1_BASE, OPENBSD_7_1, OPENBSD_7_0_BASE, OPENBSD_7_0, OPENBSD_6_9_BASE, OPENBSD_6_9, OPENBSD_6_8_BASE, OPENBSD_6_8, OPENBSD_6_7_BASE, OPENBSD_6_7, OPENBSD_6_6_BASE, OPENBSD_6_6, OPENBSD_6_5_BASE, OPENBSD_6_5, OPENBSD_6_4_BASE, OPENBSD_6_4, OPENBSD_6_3_BASE, OPENBSD_6_3, OPENBSD_6_2_BASE, OPENBSD_6_2, OPENBSD_6_1_BASE, OPENBSD_6_1, OPENBSD_6_0_BASE, OPENBSD_6_0, OPENBSD_5_9_BASE, OPENBSD_5_9, OPENBSD_5_8_BASE, OPENBSD_5_8, OPENBSD_5_7_BASE, OPENBSD_5_7, OPENBSD_5_6_BASE, OPENBSD_5_6, OPENBSD_5_5_BASE, OPENBSD_5_5
Changes since 1.2: +6 -2 lines 

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.

/* $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