001: /* CVS ID: $Id: Helper.java,v 1.1.1.1 2002/10/02 18:42:49 wastl Exp $ */
002: package net.wastl.webmail.misc;
003:
004: import javax.mail.*;
005: import java.net.*;
006: import java.math.*;
007: import java.util.*;
008: import net.wastl.webmail.server.http.HTTPRequestHeader;
009:
010: /*
011: * Helper.java
012: *
013: * Created: Tue Sep 7 13:03:44 1999
014: *
015: * Copyright (C) 1999-2000 Sebastian Schaffert
016: *
017: * This program is free software; you can redistribute it and/or
018: * modify it under the terms of the GNU General Public License
019: * as published by the Free Software Foundation; either version 2
020: * of the License, or (at your option) any later version.
021: *
022: * This program is distributed in the hope that it will be useful,
023: * but WITHOUT ANY WARRANTY; without even the implied warranty of
024: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
025: * GNU General Public License for more details.
026: *
027: * You should have received a copy of the GNU General Public License
028: * along with this program; if not, write to the Free Software
029: * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
030: */
031: /**
032: * Miscellaneous helper routines.
033: *
034: * Created: Tue Sep 7 13:03:44 1999
035: *
036: * @author Sebastian Schaffert
037: * @version
038: */
039:
040: public class Helper {
041:
042: public Helper() {
043:
044: }
045:
046: private static final int ITERATIONS = 16;
047:
048: private static final int con_salt[] = { 0x00, 0x00, 0x00, 0x00,
049: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
050: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
051: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
052: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
053: 0x00, 0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
054: 0x08, 0x09, 0x0A, 0x0B, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A,
055: 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13, 0x14,
056: 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E,
057: 0x1F, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x20, 0x21, 0x22,
058: 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C,
059: 0x2D, 0x2E, 0x2F, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36,
060: 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F, 0x00,
061: 0x00, 0x00, 0x00, 0x00, };
062:
063: private static final boolean shifts2[] = { false, false, true,
064: true, true, true, true, true, false, true, true, true,
065: true, true, true, false };
066:
067: private static final int skb[][] = {
068: {
069: /* for C bits (numbered as per FIPS 46) 1 2 3 4 5 6 */
070: 0x00000000, 0x00000010, 0x20000000, 0x20000010, 0x00010000,
071: 0x00010010, 0x20010000, 0x20010010, 0x00000800,
072: 0x00000810, 0x20000800, 0x20000810, 0x00010800,
073: 0x00010810, 0x20010800, 0x20010810, 0x00000020,
074: 0x00000030, 0x20000020, 0x20000030, 0x00010020,
075: 0x00010030, 0x20010020, 0x20010030, 0x00000820,
076: 0x00000830, 0x20000820, 0x20000830, 0x00010820,
077: 0x00010830, 0x20010820, 0x20010830, 0x00080000,
078: 0x00080010, 0x20080000, 0x20080010, 0x00090000,
079: 0x00090010, 0x20090000, 0x20090010, 0x00080800,
080: 0x00080810, 0x20080800, 0x20080810, 0x00090800,
081: 0x00090810, 0x20090800, 0x20090810, 0x00080020,
082: 0x00080030, 0x20080020, 0x20080030, 0x00090020,
083: 0x00090030, 0x20090020, 0x20090030, 0x00080820,
084: 0x00080830, 0x20080820, 0x20080830, 0x00090820,
085: 0x00090830, 0x20090820, 0x20090830, },
086: {
087: /* for C bits (numbered as per FIPS 46) 7 8 10 11 12 13 */
088: 0x00000000, 0x02000000, 0x00002000, 0x02002000, 0x00200000,
089: 0x02200000, 0x00202000, 0x02202000, 0x00000004,
090: 0x02000004, 0x00002004, 0x02002004, 0x00200004,
091: 0x02200004, 0x00202004, 0x02202004, 0x00000400,
092: 0x02000400, 0x00002400, 0x02002400, 0x00200400,
093: 0x02200400, 0x00202400, 0x02202400, 0x00000404,
094: 0x02000404, 0x00002404, 0x02002404, 0x00200404,
095: 0x02200404, 0x00202404, 0x02202404, 0x10000000,
096: 0x12000000, 0x10002000, 0x12002000, 0x10200000,
097: 0x12200000, 0x10202000, 0x12202000, 0x10000004,
098: 0x12000004, 0x10002004, 0x12002004, 0x10200004,
099: 0x12200004, 0x10202004, 0x12202004, 0x10000400,
100: 0x12000400, 0x10002400, 0x12002400, 0x10200400,
101: 0x12200400, 0x10202400, 0x12202400, 0x10000404,
102: 0x12000404, 0x10002404, 0x12002404, 0x10200404,
103: 0x12200404, 0x10202404, 0x12202404, },
104: {
105: /* for C bits (numbered as per FIPS 46) 14 15 16 17 19 20 */
106: 0x00000000, 0x00000001, 0x00040000, 0x00040001, 0x01000000,
107: 0x01000001, 0x01040000, 0x01040001, 0x00000002,
108: 0x00000003, 0x00040002, 0x00040003, 0x01000002,
109: 0x01000003, 0x01040002, 0x01040003, 0x00000200,
110: 0x00000201, 0x00040200, 0x00040201, 0x01000200,
111: 0x01000201, 0x01040200, 0x01040201, 0x00000202,
112: 0x00000203, 0x00040202, 0x00040203, 0x01000202,
113: 0x01000203, 0x01040202, 0x01040203, 0x08000000,
114: 0x08000001, 0x08040000, 0x08040001, 0x09000000,
115: 0x09000001, 0x09040000, 0x09040001, 0x08000002,
116: 0x08000003, 0x08040002, 0x08040003, 0x09000002,
117: 0x09000003, 0x09040002, 0x09040003, 0x08000200,
118: 0x08000201, 0x08040200, 0x08040201, 0x09000200,
119: 0x09000201, 0x09040200, 0x09040201, 0x08000202,
120: 0x08000203, 0x08040202, 0x08040203, 0x09000202,
121: 0x09000203, 0x09040202, 0x09040203, },
122: {
123: /* for C bits (numbered as per FIPS 46) 21 23 24 26 27 28 */
124: 0x00000000, 0x00100000, 0x00000100, 0x00100100, 0x00000008,
125: 0x00100008, 0x00000108, 0x00100108, 0x00001000,
126: 0x00101000, 0x00001100, 0x00101100, 0x00001008,
127: 0x00101008, 0x00001108, 0x00101108, 0x04000000,
128: 0x04100000, 0x04000100, 0x04100100, 0x04000008,
129: 0x04100008, 0x04000108, 0x04100108, 0x04001000,
130: 0x04101000, 0x04001100, 0x04101100, 0x04001008,
131: 0x04101008, 0x04001108, 0x04101108, 0x00020000,
132: 0x00120000, 0x00020100, 0x00120100, 0x00020008,
133: 0x00120008, 0x00020108, 0x00120108, 0x00021000,
134: 0x00121000, 0x00021100, 0x00121100, 0x00021008,
135: 0x00121008, 0x00021108, 0x00121108, 0x04020000,
136: 0x04120000, 0x04020100, 0x04120100, 0x04020008,
137: 0x04120008, 0x04020108, 0x04120108, 0x04021000,
138: 0x04121000, 0x04021100, 0x04121100, 0x04021008,
139: 0x04121008, 0x04021108, 0x04121108, },
140: {
141: /* for D bits (numbered as per FIPS 46) 1 2 3 4 5 6 */
142: 0x00000000, 0x10000000, 0x00010000, 0x10010000, 0x00000004,
143: 0x10000004, 0x00010004, 0x10010004, 0x20000000,
144: 0x30000000, 0x20010000, 0x30010000, 0x20000004,
145: 0x30000004, 0x20010004, 0x30010004, 0x00100000,
146: 0x10100000, 0x00110000, 0x10110000, 0x00100004,
147: 0x10100004, 0x00110004, 0x10110004, 0x20100000,
148: 0x30100000, 0x20110000, 0x30110000, 0x20100004,
149: 0x30100004, 0x20110004, 0x30110004, 0x00001000,
150: 0x10001000, 0x00011000, 0x10011000, 0x00001004,
151: 0x10001004, 0x00011004, 0x10011004, 0x20001000,
152: 0x30001000, 0x20011000, 0x30011000, 0x20001004,
153: 0x30001004, 0x20011004, 0x30011004, 0x00101000,
154: 0x10101000, 0x00111000, 0x10111000, 0x00101004,
155: 0x10101004, 0x00111004, 0x10111004, 0x20101000,
156: 0x30101000, 0x20111000, 0x30111000, 0x20101004,
157: 0x30101004, 0x20111004, 0x30111004, },
158: {
159: /* for D bits (numbered as per FIPS 46) 8 9 11 12 13 14 */
160: 0x00000000, 0x08000000, 0x00000008, 0x08000008, 0x00000400,
161: 0x08000400, 0x00000408, 0x08000408, 0x00020000,
162: 0x08020000, 0x00020008, 0x08020008, 0x00020400,
163: 0x08020400, 0x00020408, 0x08020408, 0x00000001,
164: 0x08000001, 0x00000009, 0x08000009, 0x00000401,
165: 0x08000401, 0x00000409, 0x08000409, 0x00020001,
166: 0x08020001, 0x00020009, 0x08020009, 0x00020401,
167: 0x08020401, 0x00020409, 0x08020409, 0x02000000,
168: 0x0A000000, 0x02000008, 0x0A000008, 0x02000400,
169: 0x0A000400, 0x02000408, 0x0A000408, 0x02020000,
170: 0x0A020000, 0x02020008, 0x0A020008, 0x02020400,
171: 0x0A020400, 0x02020408, 0x0A020408, 0x02000001,
172: 0x0A000001, 0x02000009, 0x0A000009, 0x02000401,
173: 0x0A000401, 0x02000409, 0x0A000409, 0x02020001,
174: 0x0A020001, 0x02020009, 0x0A020009, 0x02020401,
175: 0x0A020401, 0x02020409, 0x0A020409, },
176: {
177: /* for D bits (numbered as per FIPS 46) 16 17 18 19 20 21 */
178: 0x00000000, 0x00000100, 0x00080000, 0x00080100, 0x01000000,
179: 0x01000100, 0x01080000, 0x01080100, 0x00000010,
180: 0x00000110, 0x00080010, 0x00080110, 0x01000010,
181: 0x01000110, 0x01080010, 0x01080110, 0x00200000,
182: 0x00200100, 0x00280000, 0x00280100, 0x01200000,
183: 0x01200100, 0x01280000, 0x01280100, 0x00200010,
184: 0x00200110, 0x00280010, 0x00280110, 0x01200010,
185: 0x01200110, 0x01280010, 0x01280110, 0x00000200,
186: 0x00000300, 0x00080200, 0x00080300, 0x01000200,
187: 0x01000300, 0x01080200, 0x01080300, 0x00000210,
188: 0x00000310, 0x00080210, 0x00080310, 0x01000210,
189: 0x01000310, 0x01080210, 0x01080310, 0x00200200,
190: 0x00200300, 0x00280200, 0x00280300, 0x01200200,
191: 0x01200300, 0x01280200, 0x01280300, 0x00200210,
192: 0x00200310, 0x00280210, 0x00280310, 0x01200210,
193: 0x01200310, 0x01280210, 0x01280310, },
194: {
195: /* for D bits (numbered as per FIPS 46) 22 23 24 25 27 28 */
196: 0x00000000, 0x04000000, 0x00040000, 0x04040000, 0x00000002,
197: 0x04000002, 0x00040002, 0x04040002, 0x00002000,
198: 0x04002000, 0x00042000, 0x04042000, 0x00002002,
199: 0x04002002, 0x00042002, 0x04042002, 0x00000020,
200: 0x04000020, 0x00040020, 0x04040020, 0x00000022,
201: 0x04000022, 0x00040022, 0x04040022, 0x00002020,
202: 0x04002020, 0x00042020, 0x04042020, 0x00002022,
203: 0x04002022, 0x00042022, 0x04042022, 0x00000800,
204: 0x04000800, 0x00040800, 0x04040800, 0x00000802,
205: 0x04000802, 0x00040802, 0x04040802, 0x00002800,
206: 0x04002800, 0x00042800, 0x04042800, 0x00002802,
207: 0x04002802, 0x00042802, 0x04042802, 0x00000820,
208: 0x04000820, 0x00040820, 0x04040820, 0x00000822,
209: 0x04000822, 0x00040822, 0x04040822, 0x00002820,
210: 0x04002820, 0x00042820, 0x04042820, 0x00002822,
211: 0x04002822, 0x00042822, 0x04042822, }, };
212:
213: private static final int SPtrans[][] = {
214: {
215: /* nibble 0 */
216: 0x00820200, 0x00020000, 0x80800000, 0x80820200, 0x00800000,
217: 0x80020200, 0x80020000, 0x80800000, 0x80020200,
218: 0x00820200, 0x00820000, 0x80000200, 0x80800200,
219: 0x00800000, 0x00000000, 0x80020000, 0x00020000,
220: 0x80000000, 0x00800200, 0x00020200, 0x80820200,
221: 0x00820000, 0x80000200, 0x00800200, 0x80000000,
222: 0x00000200, 0x00020200, 0x80820000, 0x00000200,
223: 0x80800200, 0x80820000, 0x00000000, 0x00000000,
224: 0x80820200, 0x00800200, 0x80020000, 0x00820200,
225: 0x00020000, 0x80000200, 0x00800200, 0x80820000,
226: 0x00000200, 0x00020200, 0x80800000, 0x80020200,
227: 0x80000000, 0x80800000, 0x00820000, 0x80820200,
228: 0x00020200, 0x00820000, 0x80800200, 0x00800000,
229: 0x80000200, 0x80020000, 0x00000000, 0x00020000,
230: 0x00800000, 0x80800200, 0x00820200, 0x80000000,
231: 0x80820000, 0x00000200, 0x80020200, },
232: {
233: /* nibble 1 */
234: 0x10042004, 0x00000000, 0x00042000, 0x10040000, 0x10000004,
235: 0x00002004, 0x10002000, 0x00042000, 0x00002000,
236: 0x10040004, 0x00000004, 0x10002000, 0x00040004,
237: 0x10042000, 0x10040000, 0x00000004, 0x00040000,
238: 0x10002004, 0x10040004, 0x00002000, 0x00042004,
239: 0x10000000, 0x00000000, 0x00040004, 0x10002004,
240: 0x00042004, 0x10042000, 0x10000004, 0x10000000,
241: 0x00040000, 0x00002004, 0x10042004, 0x00040004,
242: 0x10042000, 0x10002000, 0x00042004, 0x10042004,
243: 0x00040004, 0x10000004, 0x00000000, 0x10000000,
244: 0x00002004, 0x00040000, 0x10040004, 0x00002000,
245: 0x10000000, 0x00042004, 0x10002004, 0x10042000,
246: 0x00002000, 0x00000000, 0x10000004, 0x00000004,
247: 0x10042004, 0x00042000, 0x10040000, 0x10040004,
248: 0x00040000, 0x00002004, 0x10002000, 0x10002004,
249: 0x00000004, 0x10040000, 0x00042000, },
250: {
251: /* nibble 2 */
252: 0x41000000, 0x01010040, 0x00000040, 0x41000040, 0x40010000,
253: 0x01000000, 0x41000040, 0x00010040, 0x01000040,
254: 0x00010000, 0x01010000, 0x40000000, 0x41010040,
255: 0x40000040, 0x40000000, 0x41010000, 0x00000000,
256: 0x40010000, 0x01010040, 0x00000040, 0x40000040,
257: 0x41010040, 0x00010000, 0x41000000, 0x41010000,
258: 0x01000040, 0x40010040, 0x01010000, 0x00010040,
259: 0x00000000, 0x01000000, 0x40010040, 0x01010040,
260: 0x00000040, 0x40000000, 0x00010000, 0x40000040,
261: 0x40010000, 0x01010000, 0x41000040, 0x00000000,
262: 0x01010040, 0x00010040, 0x41010000, 0x40010000,
263: 0x01000000, 0x41010040, 0x40000000, 0x40010040,
264: 0x41000000, 0x01000000, 0x41010040, 0x00010000,
265: 0x01000040, 0x41000040, 0x00010040, 0x01000040,
266: 0x00000000, 0x41010000, 0x40000040, 0x41000000,
267: 0x40010040, 0x00000040, 0x01010000, },
268: {
269: /* nibble 3 */
270: 0x00100402, 0x04000400, 0x00000002, 0x04100402, 0x00000000,
271: 0x04100000, 0x04000402, 0x00100002, 0x04100400,
272: 0x04000002, 0x04000000, 0x00000402, 0x04000002,
273: 0x00100402, 0x00100000, 0x04000000, 0x04100002,
274: 0x00100400, 0x00000400, 0x00000002, 0x00100400,
275: 0x04000402, 0x04100000, 0x00000400, 0x00000402,
276: 0x00000000, 0x00100002, 0x04100400, 0x04000400,
277: 0x04100002, 0x04100402, 0x00100000, 0x04100002,
278: 0x00000402, 0x00100000, 0x04000002, 0x00100400,
279: 0x04000400, 0x00000002, 0x04100000, 0x04000402,
280: 0x00000000, 0x00000400, 0x00100002, 0x00000000,
281: 0x04100002, 0x04100400, 0x00000400, 0x04000000,
282: 0x04100402, 0x00100402, 0x00100000, 0x04100402,
283: 0x00000002, 0x04000400, 0x00100402, 0x00100002,
284: 0x00100400, 0x04100000, 0x04000402, 0x00000402,
285: 0x04000000, 0x04000002, 0x04100400, },
286: {
287: /* nibble 4 */
288: 0x02000000, 0x00004000, 0x00000100, 0x02004108, 0x02004008,
289: 0x02000100, 0x00004108, 0x02004000, 0x00004000,
290: 0x00000008, 0x02000008, 0x00004100, 0x02000108,
291: 0x02004008, 0x02004100, 0x00000000, 0x00004100,
292: 0x02000000, 0x00004008, 0x00000108, 0x02000100,
293: 0x00004108, 0x00000000, 0x02000008, 0x00000008,
294: 0x02000108, 0x02004108, 0x00004008, 0x02004000,
295: 0x00000100, 0x00000108, 0x02004100, 0x02004100,
296: 0x02000108, 0x00004008, 0x02004000, 0x00004000,
297: 0x00000008, 0x02000008, 0x02000100, 0x02000000,
298: 0x00004100, 0x02004108, 0x00000000, 0x00004108,
299: 0x02000000, 0x00000100, 0x00004008, 0x02000108,
300: 0x00000100, 0x00000000, 0x02004108, 0x02004008,
301: 0x02004100, 0x00000108, 0x00004000, 0x00004100,
302: 0x02004008, 0x02000100, 0x00000108, 0x00000008,
303: 0x00004108, 0x02004000, 0x02000008, },
304: {
305: /* nibble 5 */
306: 0x20000010, 0x00080010, 0x00000000, 0x20080800, 0x00080010,
307: 0x00000800, 0x20000810, 0x00080000, 0x00000810,
308: 0x20080810, 0x00080800, 0x20000000, 0x20000800,
309: 0x20000010, 0x20080000, 0x00080810, 0x00080000,
310: 0x20000810, 0x20080010, 0x00000000, 0x00000800,
311: 0x00000010, 0x20080800, 0x20080010, 0x20080810,
312: 0x20080000, 0x20000000, 0x00000810, 0x00000010,
313: 0x00080800, 0x00080810, 0x20000800, 0x00000810,
314: 0x20000000, 0x20000800, 0x00080810, 0x20080800,
315: 0x00080010, 0x00000000, 0x20000800, 0x20000000,
316: 0x00000800, 0x20080010, 0x00080000, 0x00080010,
317: 0x20080810, 0x00080800, 0x00000010, 0x20080810,
318: 0x00080800, 0x00080000, 0x20000810, 0x20000010,
319: 0x20080000, 0x00080810, 0x00000000, 0x00000800,
320: 0x20000010, 0x20000810, 0x20080800, 0x20080000,
321: 0x00000810, 0x00000010, 0x20080010, },
322: {
323: /* nibble 6 */
324: 0x00001000, 0x00000080, 0x00400080, 0x00400001, 0x00401081,
325: 0x00001001, 0x00001080, 0x00000000, 0x00400000,
326: 0x00400081, 0x00000081, 0x00401000, 0x00000001,
327: 0x00401080, 0x00401000, 0x00000081, 0x00400081,
328: 0x00001000, 0x00001001, 0x00401081, 0x00000000,
329: 0x00400080, 0x00400001, 0x00001080, 0x00401001,
330: 0x00001081, 0x00401080, 0x00000001, 0x00001081,
331: 0x00401001, 0x00000080, 0x00400000, 0x00001081,
332: 0x00401000, 0x00401001, 0x00000081, 0x00001000,
333: 0x00000080, 0x00400000, 0x00401001, 0x00400081,
334: 0x00001081, 0x00001080, 0x00000000, 0x00000080,
335: 0x00400001, 0x00000001, 0x00400080, 0x00000000,
336: 0x00400081, 0x00400080, 0x00001080, 0x00000081,
337: 0x00001000, 0x00401081, 0x00400000, 0x00401080,
338: 0x00000001, 0x00001001, 0x00401081, 0x00400001,
339: 0x00401080, 0x00401000, 0x00001001, },
340: {
341: /* nibble 7 */
342: 0x08200020, 0x08208000, 0x00008020, 0x00000000, 0x08008000,
343: 0x00200020, 0x08200000, 0x08208020, 0x00000020,
344: 0x08000000, 0x00208000, 0x00008020, 0x00208020,
345: 0x08008020, 0x08000020, 0x08200000, 0x00008000,
346: 0x00208020, 0x00200020, 0x08008000, 0x08208020,
347: 0x08000020, 0x00000000, 0x00208000, 0x08000000,
348: 0x00200000, 0x08008020, 0x08200020, 0x00200000,
349: 0x00008000, 0x08208000, 0x00000020, 0x00200000,
350: 0x00008000, 0x08000020, 0x08208020, 0x00008020,
351: 0x08000000, 0x00000000, 0x00208000, 0x08200020,
352: 0x08008020, 0x08008000, 0x00200020, 0x08208000,
353: 0x00000020, 0x00200020, 0x08008000, 0x08208020,
354: 0x00200000, 0x08200000, 0x08000020, 0x00208000,
355: 0x00008020, 0x08008020, 0x08200000, 0x00000020,
356: 0x08208000, 0x00208020, 0x00000000, 0x08000000,
357: 0x08200020, 0x00008000, 0x00208020 } };
358:
359: private static final int cov_2char[] = { 0x2E, 0x2F, 0x30, 0x31,
360: 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x41, 0x42,
361: 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C,
362: 0x4D, 0x4E, 0x4F, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56,
363: 0x57, 0x58, 0x59, 0x5A, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66,
364: 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70,
365: 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A };
366:
367: private static final int byteToUnsigned(byte b) {
368: int value = (int) b;
369:
370: return (value >= 0 ? value : value + 256);
371: }
372:
373: private static int fourBytesToInt(byte b[], int offset) {
374: int value;
375:
376: value = byteToUnsigned(b[offset++]);
377: value |= (byteToUnsigned(b[offset++]) << 8);
378: value |= (byteToUnsigned(b[offset++]) << 16);
379: value |= (byteToUnsigned(b[offset++]) << 24);
380:
381: return (value);
382: }
383:
384: private static final void intToFourBytes(int iValue, byte b[],
385: int offset) {
386: b[offset++] = (byte) ((iValue) & 0xff);
387: b[offset++] = (byte) ((iValue >>> 8) & 0xff);
388: b[offset++] = (byte) ((iValue >>> 16) & 0xff);
389: b[offset++] = (byte) ((iValue >>> 24) & 0xff);
390: }
391:
392: private static final void PERM_OP(int a, int b, int n, int m,
393: int results[]) {
394: int t;
395:
396: t = ((a >>> n) ^ b) & m;
397: a ^= t << n;
398: b ^= t;
399:
400: results[0] = a;
401: results[1] = b;
402: }
403:
404: private static final int HPERM_OP(int a, int n, int m) {
405: int t;
406:
407: t = ((a << (16 - n)) ^ a) & m;
408: a = a ^ t ^ (t >>> (16 - n));
409:
410: return (a);
411: }
412:
413: private static int[] des_set_key(byte key[]) {
414: int schedule[] = new int[ITERATIONS * 2];
415:
416: int c = fourBytesToInt(key, 0);
417: int d = fourBytesToInt(key, 4);
418:
419: int results[] = new int[2];
420:
421: PERM_OP(d, c, 4, 0x0f0f0f0f, results);
422: d = results[0];
423: c = results[1];
424:
425: c = HPERM_OP(c, -2, 0xcccc0000);
426: d = HPERM_OP(d, -2, 0xcccc0000);
427:
428: PERM_OP(d, c, 1, 0x55555555, results);
429: d = results[0];
430: c = results[1];
431:
432: PERM_OP(c, d, 8, 0x00ff00ff, results);
433: c = results[0];
434: d = results[1];
435:
436: PERM_OP(d, c, 1, 0x55555555, results);
437: d = results[0];
438: c = results[1];
439:
440: d = (((d & 0x000000ff) << 16) | (d & 0x0000ff00)
441: | ((d & 0x00ff0000) >>> 16) | ((c & 0xf0000000) >>> 4));
442: c &= 0x0fffffff;
443:
444: int s, t;
445: int j = 0;
446:
447: for (int i = 0; i < ITERATIONS; i++) {
448: if (shifts2[i]) {
449: c = (c >>> 2) | (c << 26);
450: d = (d >>> 2) | (d << 26);
451: } else {
452: c = (c >>> 1) | (c << 27);
453: d = (d >>> 1) | (d << 27);
454: }
455:
456: c &= 0x0fffffff;
457: d &= 0x0fffffff;
458:
459: s = skb[0][(c) & 0x3f]
460: | skb[1][((c >>> 6) & 0x03) | ((c >>> 7) & 0x3c)]
461: | skb[2][((c >>> 13) & 0x0f) | ((c >>> 14) & 0x30)]
462: | skb[3][((c >>> 20) & 0x01) | ((c >>> 21) & 0x06)
463: | ((c >>> 22) & 0x38)];
464:
465: t = skb[4][(d) & 0x3f]
466: | skb[5][((d >>> 7) & 0x03) | ((d >>> 8) & 0x3c)]
467: | skb[6][(d >>> 15) & 0x3f]
468: | skb[7][((d >>> 21) & 0x0f) | ((d >>> 22) & 0x30)];
469:
470: schedule[j++] = ((t << 16) | (s & 0x0000ffff)) & 0xffffffff;
471: s = ((s >>> 16) | (t & 0xffff0000));
472:
473: s = (s << 4) | (s >>> 28);
474: schedule[j++] = s & 0xffffffff;
475: }
476: return (schedule);
477: }
478:
479: private static final int D_ENCRYPT(int L, int R, int S, int E0,
480: int E1, int s[]) {
481: int t, u, v;
482:
483: v = R ^ (R >>> 16);
484: u = v & E0;
485: v = v & E1;
486: u = (u ^ (u << 16)) ^ R ^ s[S];
487: t = (v ^ (v << 16)) ^ R ^ s[S + 1];
488: t = (t >>> 4) | (t << 28);
489:
490: L ^= SPtrans[1][(t) & 0x3f] | SPtrans[3][(t >>> 8) & 0x3f]
491: | SPtrans[5][(t >>> 16) & 0x3f]
492: | SPtrans[7][(t >>> 24) & 0x3f]
493: | SPtrans[0][(u) & 0x3f] | SPtrans[2][(u >>> 8) & 0x3f]
494: | SPtrans[4][(u >>> 16) & 0x3f]
495: | SPtrans[6][(u >>> 24) & 0x3f];
496:
497: return (L);
498: }
499:
500: private static final int[] body(int schedule[], int Eswap0,
501: int Eswap1) {
502: int left = 0;
503: int right = 0;
504: int t = 0;
505:
506: for (int j = 0; j < 25; j++) {
507: for (int i = 0; i < ITERATIONS * 2; i += 4) {
508: left = D_ENCRYPT(left, right, i, Eswap0, Eswap1,
509: schedule);
510: right = D_ENCRYPT(right, left, i + 2, Eswap0, Eswap1,
511: schedule);
512: }
513: t = left;
514: left = right;
515: right = t;
516: }
517:
518: t = right;
519:
520: right = (left >>> 1) | (left << 31);
521: left = (t >>> 1) | (t << 31);
522:
523: left &= 0xffffffff;
524: right &= 0xffffffff;
525:
526: int results[] = new int[2];
527:
528: PERM_OP(right, left, 1, 0x55555555, results);
529: right = results[0];
530: left = results[1];
531:
532: PERM_OP(left, right, 8, 0x00ff00ff, results);
533: left = results[0];
534: right = results[1];
535:
536: PERM_OP(right, left, 2, 0x33333333, results);
537: right = results[0];
538: left = results[1];
539:
540: PERM_OP(left, right, 16, 0x0000ffff, results);
541: left = results[0];
542: right = results[1];
543:
544: PERM_OP(right, left, 4, 0x0f0f0f0f, results);
545: right = results[0];
546: left = results[1];
547:
548: int out[] = new int[2];
549:
550: out[0] = left;
551: out[1] = right;
552:
553: return (out);
554: }
555:
556: /**
557: * Perform a Unix crypt() operation
558: */
559: public static final String crypt(String salt, String original) {
560: while (salt.length() < 2)
561: salt += "A";
562:
563: StringBuffer buffer = new StringBuffer(" ");
564:
565: char charZero = salt.charAt(0);
566: char charOne = salt.charAt(1);
567:
568: buffer.setCharAt(0, charZero);
569: buffer.setCharAt(1, charOne);
570:
571: int Eswap0 = con_salt[(int) charZero];
572: int Eswap1 = con_salt[(int) charOne] << 4;
573:
574: byte key[] = new byte[8];
575:
576: for (int i = 0; i < key.length; i++)
577: key[i] = (byte) 0;
578:
579: for (int i = 0; i < key.length && i < original.length(); i++) {
580: int iChar = (int) original.charAt(i);
581:
582: key[i] = (byte) (iChar << 1);
583: }
584:
585: int schedule[] = des_set_key(key);
586: int out[] = body(schedule, Eswap0, Eswap1);
587:
588: byte b[] = new byte[9];
589:
590: intToFourBytes(out[0], b, 0);
591: intToFourBytes(out[1], b, 4);
592: b[8] = 0;
593:
594: for (int i = 2, y = 0, u = 0x80; i < 13; i++) {
595: for (int j = 0, c = 0; j < 6; j++) {
596: c <<= 1;
597:
598: if (((int) b[y] & u) != 0)
599: c |= 1;
600:
601: u >>>= 1;
602:
603: if (u == 0) {
604: y++;
605: u = 0x80;
606: }
607: buffer.setCharAt(i, (char) cov_2char[c]);
608: }
609: }
610: return (buffer.toString());
611: }
612:
613: public static String joinAddress(Address[] a) {
614: String s = "";
615: if (a != null) {
616: for (int i = 0; i < a.length; i++) {
617: s += a[i].toString() + ", ";
618: }
619: if (s.length() >= 2) {
620: s = s.substring(0, s.length() - 2);
621: }
622: } else {
623: s = "";
624: }
625: return s;
626: }
627:
628: /**
629: * Calculate session-ID for a session.
630: *
631: * @param a Adress of the remote host
632: * @param h Requestheader of the remote user agent
633: * @returns Session-ID
634: */
635: public static String calcSessionCode(InetAddress a,
636: HTTPRequestHeader h) {
637: String temp = a.toString().replace('\n', ' ')
638: + h.getHeader("User-Agent").replace('\n', ' ');
639: temp = "" + Long.toHexString(Math.abs(temp.hashCode()));
640: if (h.getContent("login") != null
641: && !h.getContent("login").equals("")
642: && h.getPath().startsWith("/login")) {
643: temp += Long.toHexString(Math.abs(h.getContent("login")
644: .hashCode()));
645: temp += Long.toHexString(System.currentTimeMillis());
646: } else if (h.getPath().startsWith("/admin/login")) {
647: temp += "admin";
648: }
649:
650: return temp;
651: }
652:
653: public static void main(String[] args) {
654: System.err.println(Helper.crypt("AA", args[1]));
655: String crypted = encryptTEA(args[1]);
656: System.err.println("DES-Crypted: " + crypted);
657: System.err.println("DES-Decrypted: " + decryptTEA(crypted));
658: }
659:
660: private static String str_key = "39e858f86df9b909a8c87cb8d9ad599";
661:
662: public static String encryptTEA(String src) {
663: byte[] key = new BigInteger(str_key, 16).toByteArray();
664: TEA tea = new TEA(key);
665: byte plainSource[] = src.getBytes();
666: int enc[] = tea.encode(plainSource, plainSource.length);
667:
668: String s = "";
669: for (int i = 0; i < enc.length; i++) {
670: s += Integer.toHexString((byte) (enc[i] >>> 24) + 128)
671: .toUpperCase()
672: + ":";
673: s += Integer.toHexString((byte) (enc[i] >>> 16) + 128)
674: .toUpperCase()
675: + ":";
676: s += Integer.toHexString((byte) (enc[i] >>> 8) + 128)
677: .toUpperCase()
678: + ":";
679: s += Integer.toHexString((byte) (enc[i]) + 128)
680: .toUpperCase()
681: + ":";
682: }
683: // System.err.println("encryptTEA: Returning "+s);
684: return s;
685: }
686:
687: public static String decryptTEA(String src) {
688: StringTokenizer tok = new StringTokenizer(src, ": ");
689: byte[] key = new BigInteger(str_key, 16).toByteArray();
690: TEA tea = new TEA(key);
691: byte inb[] = new byte[tok.countTokens()];
692: for (int i = 0; i < inb.length && tok.hasMoreTokens(); i++) {
693: String s = tok.nextToken();
694: try {
695: inb[i] = (byte) (Integer.parseInt(s, 16) - 128);
696: } catch (NumberFormatException ex) {
697: System.err.println("Could not convert string '" + s
698: + "' to byte.");
699: }
700: }
701: byte dec[] = tea.decode(inb, inb.length);
702: String s = new String(dec);
703: // System.err.println("encryptTEA: Returning "+s);
704: return s;
705: }
706:
707: /**
708: * Here we figure out which quote level this line has, simply by counting how many
709: * ">" are in front of the line, ignoring all whitespaces.
710: */
711: public static int getQuoteLevel(String token) {
712: int current_quotelevel = 0;
713: for (int i = 0; i < token.length()
714: && (token.substring(i).startsWith(">") || token
715: .substring(i).startsWith(" ")); i++) {
716: if (token.substring(i).startsWith(">"))
717: current_quotelevel++;
718: }
719: return current_quotelevel;
720: }
721:
722: protected static int findFittingBreakPos(String line, int linesize) {
723: int pos;
724: for (pos = linesize; pos > 0; pos--) {
725: switch (line.charAt(pos)) {
726: case ' ':
727: case '\n':
728: case '\t':
729: case '.':
730: case ',':
731: case ';':
732: case ':':
733: case '!':
734: case '?':
735: return pos + 1;
736: }
737: }
738: return linesize + 1;
739: }
740:
741: public static Enumeration breakLine(String line, int linesize, int quotelevel) {
742: if(line.length() <= linesize) {
743: final String s=line;
744: return new Enumeration() {
745: int count=0;
746: public boolean hasMoreElements() {
747: return count == 0;
748: }
749:
750: public Object nextElement() {
751: count++;
752: if(count==1) return s;
753: else return null;
754: }
755: };
756: } else {
757: int breakpos=findFittingBreakPos(line,linesize);
758: final String first=line.substring(0,breakpos);
759: String rest="";
760: for(int i=0;i<quotelevel;i++) rest+=">";
761: rest+=line.substring(breakpos);
762: final Enumeration enum=breakLine(rest,linesize,quotelevel);
763: return new Enumeration() {
764: int count=0;
765: public boolean hasMoreElements() {
766: return count < 1 || enum.hasMoreElements();
767: }
768:
769: public Object nextElement() {
770: count++;
771: if(count == 1) {
772: return first;
773: } else {
774: return enum.nextElement();
775: }
776: }
777: };
778: }
779: }
780:
781: } // Helper
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