1e1051a39Sopenharmony_ci/* 2e1051a39Sopenharmony_ci * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. 3e1051a39Sopenharmony_ci * 4e1051a39Sopenharmony_ci * Licensed under the Apache License 2.0 (the "License"). You may not use 5e1051a39Sopenharmony_ci * this file except in compliance with the License. You can obtain a copy 6e1051a39Sopenharmony_ci * in the file LICENSE in the source distribution or at 7e1051a39Sopenharmony_ci * https://www.openssl.org/source/license.html 8e1051a39Sopenharmony_ci */ 9e1051a39Sopenharmony_ci 10e1051a39Sopenharmony_ci#ifndef OSSL_CRYPTO_BF_LOCAL_H 11e1051a39Sopenharmony_ci# define OSSL_CRYPTO_BF_LOCAL_H 12e1051a39Sopenharmony_ci# include <openssl/opensslconf.h> 13e1051a39Sopenharmony_ci 14e1051a39Sopenharmony_ci/* NOTE - c is not incremented as per n2l */ 15e1051a39Sopenharmony_ci# define n2ln(c,l1,l2,n) { \ 16e1051a39Sopenharmony_ci c+=n; \ 17e1051a39Sopenharmony_ci l1=l2=0; \ 18e1051a39Sopenharmony_ci switch (n) { \ 19e1051a39Sopenharmony_ci case 8: l2 =((unsigned long)(*(--(c)))) ; \ 20e1051a39Sopenharmony_ci /* fall thru */ \ 21e1051a39Sopenharmony_ci case 7: l2|=((unsigned long)(*(--(c))))<< 8; \ 22e1051a39Sopenharmony_ci /* fall thru */ \ 23e1051a39Sopenharmony_ci case 6: l2|=((unsigned long)(*(--(c))))<<16; \ 24e1051a39Sopenharmony_ci /* fall thru */ \ 25e1051a39Sopenharmony_ci case 5: l2|=((unsigned long)(*(--(c))))<<24; \ 26e1051a39Sopenharmony_ci /* fall thru */ \ 27e1051a39Sopenharmony_ci case 4: l1 =((unsigned long)(*(--(c)))) ; \ 28e1051a39Sopenharmony_ci /* fall thru */ \ 29e1051a39Sopenharmony_ci case 3: l1|=((unsigned long)(*(--(c))))<< 8; \ 30e1051a39Sopenharmony_ci /* fall thru */ \ 31e1051a39Sopenharmony_ci case 2: l1|=((unsigned long)(*(--(c))))<<16; \ 32e1051a39Sopenharmony_ci /* fall thru */ \ 33e1051a39Sopenharmony_ci case 1: l1|=((unsigned long)(*(--(c))))<<24; \ 34e1051a39Sopenharmony_ci } \ 35e1051a39Sopenharmony_ci } 36e1051a39Sopenharmony_ci 37e1051a39Sopenharmony_ci/* NOTE - c is not incremented as per l2n */ 38e1051a39Sopenharmony_ci# define l2nn(l1,l2,c,n) { \ 39e1051a39Sopenharmony_ci c+=n; \ 40e1051a39Sopenharmony_ci switch (n) { \ 41e1051a39Sopenharmony_ci case 8: *(--(c))=(unsigned char)(((l2) )&0xff); \ 42e1051a39Sopenharmony_ci /* fall thru */ \ 43e1051a39Sopenharmony_ci case 7: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \ 44e1051a39Sopenharmony_ci /* fall thru */ \ 45e1051a39Sopenharmony_ci case 6: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \ 46e1051a39Sopenharmony_ci /* fall thru */ \ 47e1051a39Sopenharmony_ci case 5: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \ 48e1051a39Sopenharmony_ci /* fall thru */ \ 49e1051a39Sopenharmony_ci case 4: *(--(c))=(unsigned char)(((l1) )&0xff); \ 50e1051a39Sopenharmony_ci /* fall thru */ \ 51e1051a39Sopenharmony_ci case 3: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \ 52e1051a39Sopenharmony_ci /* fall thru */ \ 53e1051a39Sopenharmony_ci case 2: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \ 54e1051a39Sopenharmony_ci /* fall thru */ \ 55e1051a39Sopenharmony_ci case 1: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \ 56e1051a39Sopenharmony_ci } \ 57e1051a39Sopenharmony_ci } 58e1051a39Sopenharmony_ci 59e1051a39Sopenharmony_ci# undef n2l 60e1051a39Sopenharmony_ci# define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24L, \ 61e1051a39Sopenharmony_ci l|=((unsigned long)(*((c)++)))<<16L, \ 62e1051a39Sopenharmony_ci l|=((unsigned long)(*((c)++)))<< 8L, \ 63e1051a39Sopenharmony_ci l|=((unsigned long)(*((c)++)))) 64e1051a39Sopenharmony_ci 65e1051a39Sopenharmony_ci# undef l2n 66e1051a39Sopenharmony_ci# define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24L)&0xff), \ 67e1051a39Sopenharmony_ci *((c)++)=(unsigned char)(((l)>>16L)&0xff), \ 68e1051a39Sopenharmony_ci *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \ 69e1051a39Sopenharmony_ci *((c)++)=(unsigned char)(((l) )&0xff)) 70e1051a39Sopenharmony_ci 71e1051a39Sopenharmony_ci/* 72e1051a39Sopenharmony_ci * This is actually a big endian algorithm, the most significant byte is used 73e1051a39Sopenharmony_ci * to lookup array 0 74e1051a39Sopenharmony_ci */ 75e1051a39Sopenharmony_ci 76e1051a39Sopenharmony_ci# define BF_ENC(LL,R,S,P) ( \ 77e1051a39Sopenharmony_ci LL^=P, \ 78e1051a39Sopenharmony_ci LL^=((( S[ ((R>>24)&0xff)] + \ 79e1051a39Sopenharmony_ci S[0x0100+((R>>16)&0xff)])^ \ 80e1051a39Sopenharmony_ci S[0x0200+((R>> 8)&0xff)])+ \ 81e1051a39Sopenharmony_ci S[0x0300+((R )&0xff)])&0xffffffffU \ 82e1051a39Sopenharmony_ci ) 83e1051a39Sopenharmony_ci 84e1051a39Sopenharmony_ci#endif 85