diff options
author | tpashkin <tpashkin@yandex-team.ru> | 2022-02-10 16:46:42 +0300 |
---|---|---|
committer | Daniil Cherednik <dcherednik@yandex-team.ru> | 2022-02-10 16:46:42 +0300 |
commit | 656921707c02b816d730f31c1fdc1d615adbfe00 (patch) | |
tree | 49e222ea1c5804306084bb3ae065bb702625360f /contrib/libs/openssl/crypto/des/des_local.h | |
parent | 5475379a04e37df30085bd1724f1c57e3f40996f (diff) | |
download | ydb-656921707c02b816d730f31c1fdc1d615adbfe00.tar.gz |
Restoring authorship annotation for <tpashkin@yandex-team.ru>. Commit 2 of 2.
Diffstat (limited to 'contrib/libs/openssl/crypto/des/des_local.h')
-rw-r--r-- | contrib/libs/openssl/crypto/des/des_local.h | 452 |
1 files changed, 226 insertions, 226 deletions
diff --git a/contrib/libs/openssl/crypto/des/des_local.h b/contrib/libs/openssl/crypto/des/des_local.h index c9018239d9..0f58a1c9ae 100644 --- a/contrib/libs/openssl/crypto/des/des_local.h +++ b/contrib/libs/openssl/crypto/des/des_local.h @@ -1,226 +1,226 @@ -/* - * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. - * - * Licensed under the OpenSSL license (the "License"). You may not use - * this file except in compliance with the License. You can obtain a copy - * in the file LICENSE in the source distribution or at - * https://www.openssl.org/source/license.html - */ - -#ifndef OSSL_CRYPTO_DES_LOCAL_H -# define OSSL_CRYPTO_DES_LOCAL_H - -# include <openssl/e_os2.h> - -# include <stdio.h> -# include <stdlib.h> -# include <string.h> - -# include <openssl/des.h> - -# ifdef OPENSSL_BUILD_SHLIBCRYPTO -# undef OPENSSL_EXTERN -# define OPENSSL_EXTERN OPENSSL_EXPORT -# endif - -# define ITERATIONS 16 -# define HALF_ITERATIONS 8 - -# define c2l(c,l) (l =((DES_LONG)(*((c)++))) , \ - l|=((DES_LONG)(*((c)++)))<< 8L, \ - l|=((DES_LONG)(*((c)++)))<<16L, \ - l|=((DES_LONG)(*((c)++)))<<24L) - -/* NOTE - c is not incremented as per c2l */ -# define c2ln(c,l1,l2,n) { \ - c+=n; \ - l1=l2=0; \ - switch (n) { \ - case 8: l2 =((DES_LONG)(*(--(c))))<<24L; \ - /* fall thru */ \ - case 7: l2|=((DES_LONG)(*(--(c))))<<16L; \ - /* fall thru */ \ - case 6: l2|=((DES_LONG)(*(--(c))))<< 8L; \ - /* fall thru */ \ - case 5: l2|=((DES_LONG)(*(--(c)))); \ - /* fall thru */ \ - case 4: l1 =((DES_LONG)(*(--(c))))<<24L; \ - /* fall thru */ \ - case 3: l1|=((DES_LONG)(*(--(c))))<<16L; \ - /* fall thru */ \ - case 2: l1|=((DES_LONG)(*(--(c))))<< 8L; \ - /* fall thru */ \ - case 1: l1|=((DES_LONG)(*(--(c)))); \ - } \ - } - -# define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \ - *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \ - *((c)++)=(unsigned char)(((l)>>16L)&0xff), \ - *((c)++)=(unsigned char)(((l)>>24L)&0xff)) - -/* - * replacements for htonl and ntohl since I have no idea what to do when - * faced with machines with 8 byte longs. - */ - -# define n2l(c,l) (l =((DES_LONG)(*((c)++)))<<24L, \ - l|=((DES_LONG)(*((c)++)))<<16L, \ - l|=((DES_LONG)(*((c)++)))<< 8L, \ - l|=((DES_LONG)(*((c)++)))) - -# define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24L)&0xff), \ - *((c)++)=(unsigned char)(((l)>>16L)&0xff), \ - *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \ - *((c)++)=(unsigned char)(((l) )&0xff)) - -/* NOTE - c is not incremented as per l2c */ -# define l2cn(l1,l2,c,n) { \ - c+=n; \ - switch (n) { \ - case 8: *(--(c))=(unsigned char)(((l2)>>24L)&0xff); \ - /* fall thru */ \ - case 7: *(--(c))=(unsigned char)(((l2)>>16L)&0xff); \ - /* fall thru */ \ - case 6: *(--(c))=(unsigned char)(((l2)>> 8L)&0xff); \ - /* fall thru */ \ - case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \ - /* fall thru */ \ - case 4: *(--(c))=(unsigned char)(((l1)>>24L)&0xff); \ - /* fall thru */ \ - case 3: *(--(c))=(unsigned char)(((l1)>>16L)&0xff); \ - /* fall thru */ \ - case 2: *(--(c))=(unsigned char)(((l1)>> 8L)&0xff); \ - /* fall thru */ \ - case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \ - } \ - } - -# if defined(_MSC_VER) -# define ROTATE(a,n) (_lrotr(a,n)) -# elif defined(__ICC) -# define ROTATE(a,n) (_rotr(a,n)) -# elif defined(__GNUC__) && __GNUC__>=2 && !defined(__STRICT_ANSI__) && !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_NO_INLINE_ASM) && !defined(PEDANTIC) -# if defined(__i386) || defined(__i386__) || defined(__x86_64) || defined(__x86_64__) -# define ROTATE(a,n) ({ register unsigned int ret; \ - asm ("rorl %1,%0" \ - : "=r"(ret) \ - : "I"(n),"0"(a) \ - : "cc"); \ - ret; \ - }) -# endif -# endif -# ifndef ROTATE -# define ROTATE(a,n) (((a)>>(n))+((a)<<(32-(n)))) -# endif - -/* - * Don't worry about the LOAD_DATA() stuff, that is used by fcrypt() to add - * it's little bit to the front - */ - -# ifdef DES_FCRYPT - -# define LOAD_DATA_tmp(R,S,u,t,E0,E1) \ - { DES_LONG tmp; LOAD_DATA(R,S,u,t,E0,E1,tmp); } - -# define LOAD_DATA(R,S,u,t,E0,E1,tmp) \ - t=R^(R>>16L); \ - u=t&E0; t&=E1; \ - tmp=(u<<16); u^=R^s[S ]; u^=tmp; \ - tmp=(t<<16); t^=R^s[S+1]; t^=tmp -# else -# define LOAD_DATA_tmp(a,b,c,d,e,f) LOAD_DATA(a,b,c,d,e,f,g) -# define LOAD_DATA(R,S,u,t,E0,E1,tmp) \ - u=R^s[S ]; \ - t=R^s[S+1] -# endif - -/* - * It recently occurred to me that 0^0^0^0^0^0^0 == 0, so there is no reason - * to not xor all the sub items together. This potentially saves a register - * since things can be xored directly into L - */ - -# define D_ENCRYPT(LL,R,S) { \ - LOAD_DATA_tmp(R,S,u,t,E0,E1); \ - t=ROTATE(t,4); \ - LL^= \ - DES_SPtrans[0][(u>> 2L)&0x3f]^ \ - DES_SPtrans[2][(u>>10L)&0x3f]^ \ - DES_SPtrans[4][(u>>18L)&0x3f]^ \ - DES_SPtrans[6][(u>>26L)&0x3f]^ \ - DES_SPtrans[1][(t>> 2L)&0x3f]^ \ - DES_SPtrans[3][(t>>10L)&0x3f]^ \ - DES_SPtrans[5][(t>>18L)&0x3f]^ \ - DES_SPtrans[7][(t>>26L)&0x3f]; } - - /*- - * IP and FP - * The problem is more of a geometric problem that random bit fiddling. - 0 1 2 3 4 5 6 7 62 54 46 38 30 22 14 6 - 8 9 10 11 12 13 14 15 60 52 44 36 28 20 12 4 - 16 17 18 19 20 21 22 23 58 50 42 34 26 18 10 2 - 24 25 26 27 28 29 30 31 to 56 48 40 32 24 16 8 0 - - 32 33 34 35 36 37 38 39 63 55 47 39 31 23 15 7 - 40 41 42 43 44 45 46 47 61 53 45 37 29 21 13 5 - 48 49 50 51 52 53 54 55 59 51 43 35 27 19 11 3 - 56 57 58 59 60 61 62 63 57 49 41 33 25 17 9 1 - - The output has been subject to swaps of the form - 0 1 -> 3 1 but the odd and even bits have been put into - 2 3 2 0 - different words. The main trick is to remember that - t=((l>>size)^r)&(mask); - r^=t; - l^=(t<<size); - can be used to swap and move bits between words. - - So l = 0 1 2 3 r = 16 17 18 19 - 4 5 6 7 20 21 22 23 - 8 9 10 11 24 25 26 27 - 12 13 14 15 28 29 30 31 - becomes (for size == 2 and mask == 0x3333) - t = 2^16 3^17 -- -- l = 0 1 16 17 r = 2 3 18 19 - 6^20 7^21 -- -- 4 5 20 21 6 7 22 23 - 10^24 11^25 -- -- 8 9 24 25 10 11 24 25 - 14^28 15^29 -- -- 12 13 28 29 14 15 28 29 - - Thanks for hints from Richard Outerbridge - he told me IP&FP - could be done in 15 xor, 10 shifts and 5 ands. - When I finally started to think of the problem in 2D - I first got ~42 operations without xors. When I remembered - how to use xors :-) I got it to its final state. - */ -# define PERM_OP(a,b,t,n,m) ((t)=((((a)>>(n))^(b))&(m)),\ - (b)^=(t),\ - (a)^=((t)<<(n))) - -# define IP(l,r) \ - { \ - register DES_LONG tt; \ - PERM_OP(r,l,tt, 4,0x0f0f0f0fL); \ - PERM_OP(l,r,tt,16,0x0000ffffL); \ - PERM_OP(r,l,tt, 2,0x33333333L); \ - PERM_OP(l,r,tt, 8,0x00ff00ffL); \ - PERM_OP(r,l,tt, 1,0x55555555L); \ - } - -# define FP(l,r) \ - { \ - register DES_LONG tt; \ - PERM_OP(l,r,tt, 1,0x55555555L); \ - PERM_OP(r,l,tt, 8,0x00ff00ffL); \ - PERM_OP(l,r,tt, 2,0x33333333L); \ - PERM_OP(r,l,tt,16,0x0000ffffL); \ - PERM_OP(l,r,tt, 4,0x0f0f0f0fL); \ - } - -extern const DES_LONG DES_SPtrans[8][64]; - -void fcrypt_body(DES_LONG *out, DES_key_schedule *ks, - DES_LONG Eswap0, DES_LONG Eswap1); - -#endif +/* + * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#ifndef OSSL_CRYPTO_DES_LOCAL_H +# define OSSL_CRYPTO_DES_LOCAL_H + +# include <openssl/e_os2.h> + +# include <stdio.h> +# include <stdlib.h> +# include <string.h> + +# include <openssl/des.h> + +# ifdef OPENSSL_BUILD_SHLIBCRYPTO +# undef OPENSSL_EXTERN +# define OPENSSL_EXTERN OPENSSL_EXPORT +# endif + +# define ITERATIONS 16 +# define HALF_ITERATIONS 8 + +# define c2l(c,l) (l =((DES_LONG)(*((c)++))) , \ + l|=((DES_LONG)(*((c)++)))<< 8L, \ + l|=((DES_LONG)(*((c)++)))<<16L, \ + l|=((DES_LONG)(*((c)++)))<<24L) + +/* NOTE - c is not incremented as per c2l */ +# define c2ln(c,l1,l2,n) { \ + c+=n; \ + l1=l2=0; \ + switch (n) { \ + case 8: l2 =((DES_LONG)(*(--(c))))<<24L; \ + /* fall thru */ \ + case 7: l2|=((DES_LONG)(*(--(c))))<<16L; \ + /* fall thru */ \ + case 6: l2|=((DES_LONG)(*(--(c))))<< 8L; \ + /* fall thru */ \ + case 5: l2|=((DES_LONG)(*(--(c)))); \ + /* fall thru */ \ + case 4: l1 =((DES_LONG)(*(--(c))))<<24L; \ + /* fall thru */ \ + case 3: l1|=((DES_LONG)(*(--(c))))<<16L; \ + /* fall thru */ \ + case 2: l1|=((DES_LONG)(*(--(c))))<< 8L; \ + /* fall thru */ \ + case 1: l1|=((DES_LONG)(*(--(c)))); \ + } \ + } + +# define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \ + *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \ + *((c)++)=(unsigned char)(((l)>>16L)&0xff), \ + *((c)++)=(unsigned char)(((l)>>24L)&0xff)) + +/* + * replacements for htonl and ntohl since I have no idea what to do when + * faced with machines with 8 byte longs. + */ + +# define n2l(c,l) (l =((DES_LONG)(*((c)++)))<<24L, \ + l|=((DES_LONG)(*((c)++)))<<16L, \ + l|=((DES_LONG)(*((c)++)))<< 8L, \ + l|=((DES_LONG)(*((c)++)))) + +# define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24L)&0xff), \ + *((c)++)=(unsigned char)(((l)>>16L)&0xff), \ + *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \ + *((c)++)=(unsigned char)(((l) )&0xff)) + +/* NOTE - c is not incremented as per l2c */ +# define l2cn(l1,l2,c,n) { \ + c+=n; \ + switch (n) { \ + case 8: *(--(c))=(unsigned char)(((l2)>>24L)&0xff); \ + /* fall thru */ \ + case 7: *(--(c))=(unsigned char)(((l2)>>16L)&0xff); \ + /* fall thru */ \ + case 6: *(--(c))=(unsigned char)(((l2)>> 8L)&0xff); \ + /* fall thru */ \ + case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \ + /* fall thru */ \ + case 4: *(--(c))=(unsigned char)(((l1)>>24L)&0xff); \ + /* fall thru */ \ + case 3: *(--(c))=(unsigned char)(((l1)>>16L)&0xff); \ + /* fall thru */ \ + case 2: *(--(c))=(unsigned char)(((l1)>> 8L)&0xff); \ + /* fall thru */ \ + case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \ + } \ + } + +# if defined(_MSC_VER) +# define ROTATE(a,n) (_lrotr(a,n)) +# elif defined(__ICC) +# define ROTATE(a,n) (_rotr(a,n)) +# elif defined(__GNUC__) && __GNUC__>=2 && !defined(__STRICT_ANSI__) && !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_NO_INLINE_ASM) && !defined(PEDANTIC) +# if defined(__i386) || defined(__i386__) || defined(__x86_64) || defined(__x86_64__) +# define ROTATE(a,n) ({ register unsigned int ret; \ + asm ("rorl %1,%0" \ + : "=r"(ret) \ + : "I"(n),"0"(a) \ + : "cc"); \ + ret; \ + }) +# endif +# endif +# ifndef ROTATE +# define ROTATE(a,n) (((a)>>(n))+((a)<<(32-(n)))) +# endif + +/* + * Don't worry about the LOAD_DATA() stuff, that is used by fcrypt() to add + * it's little bit to the front + */ + +# ifdef DES_FCRYPT + +# define LOAD_DATA_tmp(R,S,u,t,E0,E1) \ + { DES_LONG tmp; LOAD_DATA(R,S,u,t,E0,E1,tmp); } + +# define LOAD_DATA(R,S,u,t,E0,E1,tmp) \ + t=R^(R>>16L); \ + u=t&E0; t&=E1; \ + tmp=(u<<16); u^=R^s[S ]; u^=tmp; \ + tmp=(t<<16); t^=R^s[S+1]; t^=tmp +# else +# define LOAD_DATA_tmp(a,b,c,d,e,f) LOAD_DATA(a,b,c,d,e,f,g) +# define LOAD_DATA(R,S,u,t,E0,E1,tmp) \ + u=R^s[S ]; \ + t=R^s[S+1] +# endif + +/* + * It recently occurred to me that 0^0^0^0^0^0^0 == 0, so there is no reason + * to not xor all the sub items together. This potentially saves a register + * since things can be xored directly into L + */ + +# define D_ENCRYPT(LL,R,S) { \ + LOAD_DATA_tmp(R,S,u,t,E0,E1); \ + t=ROTATE(t,4); \ + LL^= \ + DES_SPtrans[0][(u>> 2L)&0x3f]^ \ + DES_SPtrans[2][(u>>10L)&0x3f]^ \ + DES_SPtrans[4][(u>>18L)&0x3f]^ \ + DES_SPtrans[6][(u>>26L)&0x3f]^ \ + DES_SPtrans[1][(t>> 2L)&0x3f]^ \ + DES_SPtrans[3][(t>>10L)&0x3f]^ \ + DES_SPtrans[5][(t>>18L)&0x3f]^ \ + DES_SPtrans[7][(t>>26L)&0x3f]; } + + /*- + * IP and FP + * The problem is more of a geometric problem that random bit fiddling. + 0 1 2 3 4 5 6 7 62 54 46 38 30 22 14 6 + 8 9 10 11 12 13 14 15 60 52 44 36 28 20 12 4 + 16 17 18 19 20 21 22 23 58 50 42 34 26 18 10 2 + 24 25 26 27 28 29 30 31 to 56 48 40 32 24 16 8 0 + + 32 33 34 35 36 37 38 39 63 55 47 39 31 23 15 7 + 40 41 42 43 44 45 46 47 61 53 45 37 29 21 13 5 + 48 49 50 51 52 53 54 55 59 51 43 35 27 19 11 3 + 56 57 58 59 60 61 62 63 57 49 41 33 25 17 9 1 + + The output has been subject to swaps of the form + 0 1 -> 3 1 but the odd and even bits have been put into + 2 3 2 0 + different words. The main trick is to remember that + t=((l>>size)^r)&(mask); + r^=t; + l^=(t<<size); + can be used to swap and move bits between words. + + So l = 0 1 2 3 r = 16 17 18 19 + 4 5 6 7 20 21 22 23 + 8 9 10 11 24 25 26 27 + 12 13 14 15 28 29 30 31 + becomes (for size == 2 and mask == 0x3333) + t = 2^16 3^17 -- -- l = 0 1 16 17 r = 2 3 18 19 + 6^20 7^21 -- -- 4 5 20 21 6 7 22 23 + 10^24 11^25 -- -- 8 9 24 25 10 11 24 25 + 14^28 15^29 -- -- 12 13 28 29 14 15 28 29 + + Thanks for hints from Richard Outerbridge - he told me IP&FP + could be done in 15 xor, 10 shifts and 5 ands. + When I finally started to think of the problem in 2D + I first got ~42 operations without xors. When I remembered + how to use xors :-) I got it to its final state. + */ +# define PERM_OP(a,b,t,n,m) ((t)=((((a)>>(n))^(b))&(m)),\ + (b)^=(t),\ + (a)^=((t)<<(n))) + +# define IP(l,r) \ + { \ + register DES_LONG tt; \ + PERM_OP(r,l,tt, 4,0x0f0f0f0fL); \ + PERM_OP(l,r,tt,16,0x0000ffffL); \ + PERM_OP(r,l,tt, 2,0x33333333L); \ + PERM_OP(l,r,tt, 8,0x00ff00ffL); \ + PERM_OP(r,l,tt, 1,0x55555555L); \ + } + +# define FP(l,r) \ + { \ + register DES_LONG tt; \ + PERM_OP(l,r,tt, 1,0x55555555L); \ + PERM_OP(r,l,tt, 8,0x00ff00ffL); \ + PERM_OP(l,r,tt, 2,0x33333333L); \ + PERM_OP(r,l,tt,16,0x0000ffffL); \ + PERM_OP(l,r,tt, 4,0x0f0f0f0fL); \ + } + +extern const DES_LONG DES_SPtrans[8][64]; + +void fcrypt_body(DES_LONG *out, DES_key_schedule *ks, + DES_LONG Eswap0, DES_LONG Eswap1); + +#endif |