1656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* crypto/rc2/rc2_cbc.c */ 2656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * All rights reserved. 4656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 5656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This package is an SSL implementation written 6656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * by Eric Young (eay@cryptsoft.com). 7656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * The implementation was written so as to conform with Netscapes SSL. 8656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 9656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This library is free for commercial and non-commercial use as long as 10656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the following conditions are aheared to. The following conditions 11656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * apply to all code found in this distribution, be it the RC4, RSA, 12656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * included with this distribution is covered by the same copyright terms 14656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 16656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Copyright remains Eric Young's, and as such any Copyright notices in 17656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the code are not to be removed. 18656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * If this package is used in a product, Eric Young should be given attribution 19656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * as the author of the parts of the library used. 20656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This can be in the form of a textual message at program startup or 21656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * in documentation (online or textual) provided with the package. 22656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 23656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Redistribution and use in source and binary forms, with or without 24656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * modification, are permitted provided that the following conditions 25656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * are met: 26656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 1. Redistributions of source code must retain the copyright 27656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer. 28656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 29656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer in the 30656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * documentation and/or other materials provided with the distribution. 31656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 3. All advertising materials mentioning features or use of this software 32656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * must display the following acknowledgement: 33656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes cryptographic software written by 34656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Eric Young (eay@cryptsoft.com)" 35656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * The word 'cryptographic' can be left out if the rouines from the library 36656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * being used are not cryptographic related :-). 37656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 4. If you include any Windows specific code (or a derivative thereof) from 38656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the apps directory (application code) you must include an acknowledgement: 39656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 41656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * SUCH DAMAGE. 52656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 53656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * The licence and distribution terms for any publically available version or 54656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * derivative of this code cannot be changed. i.e. this code cannot simply be 55656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * copied and put under another distribution licence 56656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * [including the GNU Public Licence.] 57656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 58656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 59656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/rc2.h> 60656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include "rc2_locl.h" 61656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 62656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectvoid RC2_cbc_encrypt(const unsigned char *in, unsigned char *out, long length, 63656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project RC2_KEY *ks, unsigned char *iv, int encrypt) 64656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 65656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project register unsigned long tin0,tin1; 66656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project register unsigned long tout0,tout1,xor0,xor1; 67656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project register long l=length; 68656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned long tin[2]; 69656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 70656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (encrypt) 71656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 72656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project c2l(iv,tout0); 73656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project c2l(iv,tout1); 74656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project iv-=8; 75656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (l-=8; l>=0; l-=8) 76656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 77656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project c2l(in,tin0); 78656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project c2l(in,tin1); 79656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project tin0^=tout0; 80656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project tin1^=tout1; 81656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project tin[0]=tin0; 82656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project tin[1]=tin1; 83656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project RC2_encrypt(tin,ks); 84656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project tout0=tin[0]; l2c(tout0,out); 85656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project tout1=tin[1]; l2c(tout1,out); 86656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 87656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (l != -8) 88656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 89656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project c2ln(in,tin0,tin1,l+8); 90656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project tin0^=tout0; 91656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project tin1^=tout1; 92656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project tin[0]=tin0; 93656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project tin[1]=tin1; 94656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project RC2_encrypt(tin,ks); 95656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project tout0=tin[0]; l2c(tout0,out); 96656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project tout1=tin[1]; l2c(tout1,out); 97656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 98656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project l2c(tout0,iv); 99656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project l2c(tout1,iv); 100656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 101656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 102656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 103656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project c2l(iv,xor0); 104656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project c2l(iv,xor1); 105656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project iv-=8; 106656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (l-=8; l>=0; l-=8) 107656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 108656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project c2l(in,tin0); tin[0]=tin0; 109656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project c2l(in,tin1); tin[1]=tin1; 110656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project RC2_decrypt(tin,ks); 111656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project tout0=tin[0]^xor0; 112656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project tout1=tin[1]^xor1; 113656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project l2c(tout0,out); 114656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project l2c(tout1,out); 115656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xor0=tin0; 116656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xor1=tin1; 117656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 118656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (l != -8) 119656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 120656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project c2l(in,tin0); tin[0]=tin0; 121656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project c2l(in,tin1); tin[1]=tin1; 122656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project RC2_decrypt(tin,ks); 123656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project tout0=tin[0]^xor0; 124656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project tout1=tin[1]^xor1; 125656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project l2cn(tout0,tout1,out,l+8); 126656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xor0=tin0; 127656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xor1=tin1; 128656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 129656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project l2c(xor0,iv); 130656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project l2c(xor1,iv); 131656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 132656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project tin0=tin1=tout0=tout1=xor0=xor1=0; 133656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project tin[0]=tin[1]=0; 134656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 135656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 136656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectvoid RC2_encrypt(unsigned long *d, RC2_KEY *key) 137656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 138656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int i,n; 139656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project register RC2_INT *p0,*p1; 140656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project register RC2_INT x0,x1,x2,x3,t; 141656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned long l; 142656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 143656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project l=d[0]; 144656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project x0=(RC2_INT)l&0xffff; 145656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project x1=(RC2_INT)(l>>16L); 146656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project l=d[1]; 147656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project x2=(RC2_INT)l&0xffff; 148656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project x3=(RC2_INT)(l>>16L); 149656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 150656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n=3; 151656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i=5; 152656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 153656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p0=p1= &(key->data[0]); 154656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (;;) 155656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 156656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project t=(x0+(x1& ~x3)+(x2&x3)+ *(p0++))&0xffff; 157656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project x0=(t<<1)|(t>>15); 158656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project t=(x1+(x2& ~x0)+(x3&x0)+ *(p0++))&0xffff; 159656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project x1=(t<<2)|(t>>14); 160656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project t=(x2+(x3& ~x1)+(x0&x1)+ *(p0++))&0xffff; 161656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project x2=(t<<3)|(t>>13); 162656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project t=(x3+(x0& ~x2)+(x1&x2)+ *(p0++))&0xffff; 163656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project x3=(t<<5)|(t>>11); 164656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 165656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (--i == 0) 166656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 167656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (--n == 0) break; 168656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i=(n == 2)?6:5; 169656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 170656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project x0+=p1[x3&0x3f]; 171656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project x1+=p1[x0&0x3f]; 172656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project x2+=p1[x1&0x3f]; 173656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project x3+=p1[x2&0x3f]; 174656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 175656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 176656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 177656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project d[0]=(unsigned long)(x0&0xffff)|((unsigned long)(x1&0xffff)<<16L); 178656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project d[1]=(unsigned long)(x2&0xffff)|((unsigned long)(x3&0xffff)<<16L); 179656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 180656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 181656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectvoid RC2_decrypt(unsigned long *d, RC2_KEY *key) 182656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 183656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int i,n; 184656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project register RC2_INT *p0,*p1; 185656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project register RC2_INT x0,x1,x2,x3,t; 186656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned long l; 187656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 188656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project l=d[0]; 189656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project x0=(RC2_INT)l&0xffff; 190656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project x1=(RC2_INT)(l>>16L); 191656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project l=d[1]; 192656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project x2=(RC2_INT)l&0xffff; 193656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project x3=(RC2_INT)(l>>16L); 194656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 195656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n=3; 196656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i=5; 197656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 198656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p0= &(key->data[63]); 199656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project p1= &(key->data[0]); 200656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (;;) 201656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 202656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project t=((x3<<11)|(x3>>5))&0xffff; 203656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project x3=(t-(x0& ~x2)-(x1&x2)- *(p0--))&0xffff; 204656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project t=((x2<<13)|(x2>>3))&0xffff; 205656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project x2=(t-(x3& ~x1)-(x0&x1)- *(p0--))&0xffff; 206656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project t=((x1<<14)|(x1>>2))&0xffff; 207656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project x1=(t-(x2& ~x0)-(x3&x0)- *(p0--))&0xffff; 208656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project t=((x0<<15)|(x0>>1))&0xffff; 209656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project x0=(t-(x1& ~x3)-(x2&x3)- *(p0--))&0xffff; 210656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 211656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (--i == 0) 212656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 213656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (--n == 0) break; 214656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i=(n == 2)?6:5; 215656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 216656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project x3=(x3-p1[x2&0x3f])&0xffff; 217656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project x2=(x2-p1[x1&0x3f])&0xffff; 218656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project x1=(x1-p1[x0&0x3f])&0xffff; 219656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project x0=(x0-p1[x3&0x3f])&0xffff; 220656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 221656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 222656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 223656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project d[0]=(unsigned long)(x0&0xffff)|((unsigned long)(x1&0xffff)<<16L); 224656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project d[1]=(unsigned long)(x2&0xffff)|((unsigned long)(x3&0xffff)<<16L); 225656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 226656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 227