|
libssh
0.7.2
|
00001 /* $OpenBSD: sc25519.h,v 1.3 2013/12/09 11:03:45 markus Exp $ */ 00002 00003 /* 00004 * Public Domain, Authors: Daniel J. Bernstein, Niels Duif, Tanja Lange, 00005 * Peter Schwabe, Bo-Yin Yang. 00006 * Copied from supercop-20130419/crypto_sign/ed25519/ref/sc25519.h 00007 */ 00008 00009 #ifndef SC25519_H 00010 #define SC25519_H 00011 00012 #define sc25519 crypto_sign_ed25519_ref_sc25519 00013 #define shortsc25519 crypto_sign_ed25519_ref_shortsc25519 00014 #define sc25519_from32bytes crypto_sign_ed25519_ref_sc25519_from32bytes 00015 #define shortsc25519_from16bytes crypto_sign_ed25519_ref_shortsc25519_from16bytes 00016 #define sc25519_from64bytes crypto_sign_ed25519_ref_sc25519_from64bytes 00017 #define sc25519_from_shortsc crypto_sign_ed25519_ref_sc25519_from_shortsc 00018 #define sc25519_to32bytes crypto_sign_ed25519_ref_sc25519_to32bytes 00019 #define sc25519_iszero_vartime crypto_sign_ed25519_ref_sc25519_iszero_vartime 00020 #define sc25519_isshort_vartime crypto_sign_ed25519_ref_sc25519_isshort_vartime 00021 #define sc25519_lt_vartime crypto_sign_ed25519_ref_sc25519_lt_vartime 00022 #define sc25519_add crypto_sign_ed25519_ref_sc25519_add 00023 #define sc25519_sub_nored crypto_sign_ed25519_ref_sc25519_sub_nored 00024 #define sc25519_mul crypto_sign_ed25519_ref_sc25519_mul 00025 #define sc25519_mul_shortsc crypto_sign_ed25519_ref_sc25519_mul_shortsc 00026 #define sc25519_window3 crypto_sign_ed25519_ref_sc25519_window3 00027 #define sc25519_window5 crypto_sign_ed25519_ref_sc25519_window5 00028 #define sc25519_2interleave2 crypto_sign_ed25519_ref_sc25519_2interleave2 00029 00030 typedef struct { 00031 uint32_t v[32]; 00032 } sc25519; 00033 00034 typedef struct { 00035 uint32_t v[16]; 00036 } shortsc25519; 00037 00038 void sc25519_from32bytes(sc25519 *r, const unsigned char x[32]); 00039 00040 void shortsc25519_from16bytes(shortsc25519 *r, const unsigned char x[16]); 00041 00042 void sc25519_from64bytes(sc25519 *r, const unsigned char x[64]); 00043 00044 void sc25519_from_shortsc(sc25519 *r, const shortsc25519 *x); 00045 00046 void sc25519_to32bytes(unsigned char r[32], const sc25519 *x); 00047 00048 int sc25519_iszero_vartime(const sc25519 *x); 00049 00050 int sc25519_isshort_vartime(const sc25519 *x); 00051 00052 int sc25519_lt_vartime(const sc25519 *x, const sc25519 *y); 00053 00054 void sc25519_add(sc25519 *r, const sc25519 *x, const sc25519 *y); 00055 00056 void sc25519_sub_nored(sc25519 *r, const sc25519 *x, const sc25519 *y); 00057 00058 void sc25519_mul(sc25519 *r, const sc25519 *x, const sc25519 *y); 00059 00060 void sc25519_mul_shortsc(sc25519 *r, const sc25519 *x, const shortsc25519 *y); 00061 00062 /* Convert s into a representation of the form \sum_{i=0}^{84}r[i]2^3 00063 * with r[i] in {-4,...,3} 00064 */ 00065 void sc25519_window3(signed char r[85], const sc25519 *s); 00066 00067 /* Convert s into a representation of the form \sum_{i=0}^{50}r[i]2^5 00068 * with r[i] in {-16,...,15} 00069 */ 00070 void sc25519_window5(signed char r[51], const sc25519 *s); 00071 00072 void sc25519_2interleave2(unsigned char r[127], const sc25519 *s1, const sc25519 *s2); 00073 00074 #endif
1.7.5.1