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- /* FFdecsa -- fast decsa algorithm
- *
- * Copyright (C) 2003-2004 fatih89r
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-
- struct group_t{
- unsigned char s1,s2,s3,s4,s5,s6,s7,s8;
- };
- typedef struct group_t group;
-
- #define GROUP_PARALLELISM 64
-
- group static inline FF0(){
- group res;
- res.s1=0x0;
- res.s2=0x0;
- res.s3=0x0;
- res.s4=0x0;
- res.s5=0x0;
- res.s6=0x0;
- res.s7=0x0;
- res.s8=0x0;
- return res;
- }
-
- group static inline FF1(){
- group res;
- res.s1=0xff;
- res.s2=0xff;
- res.s3=0xff;
- res.s4=0xff;
- res.s5=0xff;
- res.s6=0xff;
- res.s7=0xff;
- res.s8=0xff;
- return res;
- }
-
- group static inline FFAND(group a,group b){
- group res;
- res.s1=a.s1&b.s1;
- res.s2=a.s2&b.s2;
- res.s3=a.s3&b.s3;
- res.s4=a.s4&b.s4;
- res.s5=a.s5&b.s5;
- res.s6=a.s6&b.s6;
- res.s7=a.s7&b.s7;
- res.s8=a.s8&b.s8;
- return res;
- }
-
- group static inline FFOR(group a,group b){
- group res;
- res.s1=a.s1|b.s1;
- res.s2=a.s2|b.s2;
- res.s3=a.s3|b.s3;
- res.s4=a.s4|b.s4;
- res.s5=a.s5|b.s5;
- res.s6=a.s6|b.s6;
- res.s7=a.s7|b.s7;
- res.s8=a.s8|b.s8;
- return res;
- }
-
- group static inline FFXOR(group a,group b){
- group res;
- res.s1=a.s1^b.s1;
- res.s2=a.s2^b.s2;
- res.s3=a.s3^b.s3;
- res.s4=a.s4^b.s4;
- res.s5=a.s5^b.s5;
- res.s6=a.s6^b.s6;
- res.s7=a.s7^b.s7;
- res.s8=a.s8^b.s8;
- return res;
- }
-
- group static inline FFNOT(group a){
- group res;
- res.s1=~a.s1;
- res.s2=~a.s2;
- res.s3=~a.s3;
- res.s4=~a.s4;
- res.s5=~a.s5;
- res.s6=~a.s6;
- res.s7=~a.s7;
- res.s8=~a.s8;
- return res;
- }
-
-
- /* 64 rows of 64 bits */
-
- void static inline FFTABLEIN(unsigned char *tab, int g, unsigned char *data){
- *(((int *)tab)+2*g)=*((int *)data);
- *(((int *)tab)+2*g+1)=*(((int *)data)+1);
- }
-
- void static inline FFTABLEOUT(unsigned char *data, unsigned char *tab, int g){
- *((int *)data)=*(((int *)tab)+2*g);
- *(((int *)data)+1)=*(((int *)tab)+2*g+1);
- }
-
- void static inline FFTABLEOUTXORNBY(int n, unsigned char *data, unsigned char *tab, int g){
- int j;
- for(j=0;j<n;j++){
- *(data+j)^=*(tab+8*g+j);
- }
- }
-
- struct batch_t{
- unsigned char s1,s2,s3,s4,s5,s6,s7,s8;
- };
- typedef struct batch_t batch;
-
- #define BYTES_PER_BATCH 8
-
- batch static inline B_FFAND(batch a,batch b){
- batch res;
- res.s1=a.s1&b.s1;
- res.s2=a.s2&b.s2;
- res.s3=a.s3&b.s3;
- res.s4=a.s4&b.s4;
- res.s5=a.s5&b.s5;
- res.s6=a.s6&b.s6;
- res.s7=a.s7&b.s7;
- res.s8=a.s8&b.s8;
- return res;
- }
-
- batch static inline B_FFOR(batch a,batch b){
- batch res;
- res.s1=a.s1|b.s1;
- res.s2=a.s2|b.s2;
- res.s3=a.s3|b.s3;
- res.s4=a.s4|b.s4;
- res.s5=a.s5|b.s5;
- res.s6=a.s6|b.s6;
- res.s7=a.s7|b.s7;
- res.s8=a.s8|b.s8;
- return res;
- }
-
- batch static inline B_FFXOR(batch a,batch b){
- batch res;
- res.s1=a.s1^b.s1;
- res.s2=a.s2^b.s2;
- res.s3=a.s3^b.s3;
- res.s4=a.s4^b.s4;
- res.s5=a.s5^b.s5;
- res.s6=a.s6^b.s6;
- res.s7=a.s7^b.s7;
- res.s8=a.s8^b.s8;
- return res;
- }
-
-
- batch static inline B_FFN_ALL_29(){
- batch res;
- res.s1=0x29;
- res.s2=0x29;
- res.s3=0x29;
- res.s4=0x29;
- res.s5=0x29;
- res.s6=0x29;
- res.s7=0x29;
- res.s8=0x29;
- return res;
- }
- batch static inline B_FFN_ALL_02(){
- batch res;
- res.s1=0x02;
- res.s2=0x02;
- res.s3=0x02;
- res.s4=0x02;
- res.s5=0x02;
- res.s6=0x02;
- res.s7=0x02;
- res.s8=0x02;
- return res;
- }
- batch static inline B_FFN_ALL_04(){
- batch res;
- res.s1=0x04;
- res.s2=0x04;
- res.s3=0x04;
- res.s4=0x04;
- res.s5=0x04;
- res.s6=0x04;
- res.s7=0x04;
- res.s8=0x04;
- return res;
- }
- batch static inline B_FFN_ALL_10(){
- batch res;
- res.s1=0x10;
- res.s2=0x10;
- res.s3=0x10;
- res.s4=0x10;
- res.s5=0x10;
- res.s6=0x10;
- res.s7=0x10;
- res.s8=0x10;
- return res;
- }
- batch static inline B_FFN_ALL_40(){
- batch res;
- res.s1=0x40;
- res.s2=0x40;
- res.s3=0x40;
- res.s4=0x40;
- res.s5=0x40;
- res.s6=0x40;
- res.s7=0x40;
- res.s8=0x40;
- return res;
- }
- batch static inline B_FFN_ALL_80(){
- batch res;
- res.s1=0x80;
- res.s2=0x80;
- res.s3=0x80;
- res.s4=0x80;
- res.s5=0x80;
- res.s6=0x80;
- res.s7=0x80;
- res.s8=0x80;
- return res;
- }
-
- batch static inline B_FFSH8L(batch a,int n){
- batch res;
- res.s1=a.s1<<n;
- res.s2=a.s2<<n;
- res.s3=a.s3<<n;
- res.s4=a.s4<<n;
- res.s5=a.s5<<n;
- res.s6=a.s6<<n;
- res.s7=a.s7<<n;
- res.s8=a.s8<<n;
- return res;
- }
-
- batch static inline B_FFSH8R(batch a,int n){
- batch res;
- res.s1=a.s1>>n;
- res.s2=a.s2>>n;
- res.s3=a.s3>>n;
- res.s4=a.s4>>n;
- res.s5=a.s5>>n;
- res.s6=a.s6>>n;
- res.s7=a.s7>>n;
- res.s8=a.s8>>n;
- return res;
- }
-
-
- void static inline M_EMPTY(void){
- }
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