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/gnu/javax/crypto/cipher/Blowfish.java

https://github.com/penberg/classpath
Java | 611 lines | 511 code | 20 blank | 80 comment | 11 complexity | 0434e5f89b5154bdfd4d469a2ff0eca9 MD5 | raw file
  1. /* Blowfish.java --
  2. Copyright (C) 2001, 2002, 2006 Free Software Foundation, Inc.
  3. This file is a part of GNU Classpath.
  4. GNU Classpath is free software; you can redistribute it and/or modify
  5. it under the terms of the GNU General Public License as published by
  6. the Free Software Foundation; either version 2 of the License, or (at
  7. your option) any later version.
  8. GNU Classpath is distributed in the hope that it will be useful, but
  9. WITHOUT ANY WARRANTY; without even the implied warranty of
  10. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  11. General Public License for more details.
  12. You should have received a copy of the GNU General Public License
  13. along with GNU Classpath; if not, write to the Free Software
  14. Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
  15. USA
  16. Linking this library statically or dynamically with other modules is
  17. making a combined work based on this library. Thus, the terms and
  18. conditions of the GNU General Public License cover the whole
  19. combination.
  20. As a special exception, the copyright holders of this library give you
  21. permission to link this library with independent modules to produce an
  22. executable, regardless of the license terms of these independent
  23. modules, and to copy and distribute the resulting executable under
  24. terms of your choice, provided that you also meet, for each linked
  25. independent module, the terms and conditions of the license of that
  26. module. An independent module is a module which is not derived from
  27. or based on this library. If you modify this library, you may extend
  28. this exception to your version of the library, but you are not
  29. obligated to do so. If you do not wish to do so, delete this
  30. exception statement from your version. */
  31. // --------------------------------------------------------------------------
  32. //
  33. // Based on the C implementation from the GNU Privacy Guard.
  34. //
  35. // --------------------------------------------------------------------------
  36. package gnu.javax.crypto.cipher;
  37. import gnu.java.security.Registry;
  38. import gnu.java.security.util.Sequence;
  39. import gnu.java.security.util.Util;
  40. import java.util.Collections;
  41. import java.util.Iterator;
  42. /**
  43. * Blowfish is a 16-round, 64-bit Feistel cipher designed by Bruce Schneier. It
  44. * accepts a variable-length key of up to 448 bits.
  45. * <p>
  46. * References:
  47. * <ol>
  48. * <li>Schneier, Bruce: <i>Applied Cryptography</i>, Second Edition, 336--339,
  49. * 647--654 (1996 Bruce Schneier).</li>
  50. * <li><a href="http://www.counterpane.com/blowfish.html">The Blowfish
  51. * Encryption Algorithm.</a></li>
  52. * </ol>
  53. */
  54. public class Blowfish
  55. extends BaseCipher
  56. {
  57. private static final int DEFAULT_BLOCK_SIZE = 8;
  58. private static final int DEFAULT_KEY_SIZE = 8;
  59. private static final int MAX_KEY_LENGTH = 56;
  60. /** Initial value of the p-array. */
  61. private static final int[] P = {
  62. 0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344, 0xa4093822, 0x299f31d0,
  63. 0x082efa98, 0xec4e6c89, 0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c,
  64. 0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917, 0x9216d5d9, 0x8979fb1b };
  65. /** Initial value of S-box 1. */
  66. static final int[] KS0 = {
  67. 0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7, 0xb8e1afed, 0x6a267e96,
  68. 0xba7c9045, 0xf12c7f99, 0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16,
  69. 0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e, 0x0d95748f, 0x728eb658,
  70. 0x718bcd58, 0x82154aee, 0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013,
  71. 0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef, 0x8e79dcb0, 0x603a180e,
  72. 0x6c9e0e8b, 0xb01e8a3e, 0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60,
  73. 0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440, 0x55ca396a, 0x2aab10b6,
  74. 0xb4cc5c34, 0x1141e8ce, 0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a,
  75. 0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e, 0xafd6ba33, 0x6c24cf5c,
  76. 0x7a325381, 0x28958677, 0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193,
  77. 0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032, 0xef845d5d, 0xe98575b1,
  78. 0xdc262302, 0xeb651b88, 0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239,
  79. 0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e, 0x21c66842, 0xf6e96c9a,
  80. 0x670c9c61, 0xabd388f0, 0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3,
  81. 0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98, 0xa1f1651d, 0x39af0176,
  82. 0x66ca593e, 0x82430e88, 0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe,
  83. 0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6, 0x4ed3aa62, 0x363f7706,
  84. 0x1bfedf72, 0x429b023d, 0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b,
  85. 0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7, 0xe3fe501a, 0xb6794c3b,
  86. 0x976ce0bd, 0x04c006ba, 0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463,
  87. 0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f, 0x6dfc511f, 0x9b30952c,
  88. 0xcc814544, 0xaf5ebd09, 0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3,
  89. 0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb, 0x5579c0bd, 0x1a60320a,
  90. 0xd6a100c6, 0x402c7279, 0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8,
  91. 0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab, 0x323db5fa, 0xfd238760,
  92. 0x53317b48, 0x3e00df82, 0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db,
  93. 0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573, 0x695b27b0, 0xbbca58c8,
  94. 0xe1ffa35d, 0xb8f011a0, 0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b,
  95. 0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790, 0xe1ddf2da, 0xa4cb7e33,
  96. 0x62fb1341, 0xcee4c6e8, 0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4,
  97. 0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0, 0xd08ed1d0, 0xafc725e0,
  98. 0x8e3c5b2f, 0x8e7594b7, 0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c,
  99. 0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad, 0x2f2f2218, 0xbe0e1777,
  100. 0xea752dfe, 0x8b021fa1, 0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299,
  101. 0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9, 0x165fa266, 0x80957705,
  102. 0x93cc7314, 0x211a1477, 0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf,
  103. 0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49, 0x00250e2d, 0x2071b35e,
  104. 0x226800bb, 0x57b8e0af, 0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa,
  105. 0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5, 0x83260376, 0x6295cfa9,
  106. 0x11c81968, 0x4e734a41, 0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915,
  107. 0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400, 0x08ba6fb5, 0x571be91f,
  108. 0xf296ec6b, 0x2a0dd915, 0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664,
  109. 0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a };
  110. /** Initial value of S-box 2. */
  111. private static final int[] KS1 = {
  112. 0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623, 0xad6ea6b0, 0x49a7df7d,
  113. 0x9cee60b8, 0x8fedb266, 0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1,
  114. 0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e, 0x3f54989a, 0x5b429d65,
  115. 0x6b8fe4d6, 0x99f73fd6, 0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1,
  116. 0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e, 0x09686b3f, 0x3ebaefc9,
  117. 0x3c971814, 0x6b6a70a1, 0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737,
  118. 0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8, 0xb03ada37, 0xf0500c0d,
  119. 0xf01c1f04, 0x0200b3ff, 0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd,
  120. 0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701, 0x3ae5e581, 0x37c2dadc,
  121. 0xc8b57634, 0x9af3dda7, 0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41,
  122. 0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331, 0x4e548b38, 0x4f6db908,
  123. 0x6f420d03, 0xf60a04bf, 0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af,
  124. 0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e, 0x5512721f, 0x2e6b7124,
  125. 0x501adde6, 0x9f84cd87, 0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c,
  126. 0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2, 0xef1c1847, 0x3215d908,
  127. 0xdd433b37, 0x24c2ba16, 0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd,
  128. 0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b, 0x043556f1, 0xd7a3c76b,
  129. 0x3c11183b, 0x5924a509, 0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e,
  130. 0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3, 0x771fe71c, 0x4e3d06fa,
  131. 0x2965dcb9, 0x99e71d0f, 0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a,
  132. 0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4, 0xf2f74ea7, 0x361d2b3d,
  133. 0x1939260f, 0x19c27960, 0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66,
  134. 0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28, 0xc332ddef, 0xbe6c5aa5,
  135. 0x65582185, 0x68ab9802, 0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84,
  136. 0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510, 0x13cca830, 0xeb61bd96,
  137. 0x0334fe1e, 0xaa0363cf, 0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14,
  138. 0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e, 0x648b1eaf, 0x19bdf0ca,
  139. 0xa02369b9, 0x655abb50, 0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7,
  140. 0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8, 0xf837889a, 0x97e32d77,
  141. 0x11ed935f, 0x16681281, 0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99,
  142. 0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696, 0xcdb30aeb, 0x532e3054,
  143. 0x8fd948e4, 0x6dbc3128, 0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73,
  144. 0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0, 0x45eee2b6, 0xa3aaabea,
  145. 0xdb6c4f15, 0xfacb4fd0, 0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105,
  146. 0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250, 0xcf62a1f2, 0x5b8d2646,
  147. 0xfc8883a0, 0xc1c7b6a3, 0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285,
  148. 0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00, 0x58428d2a, 0x0c55f5ea,
  149. 0x1dadf43e, 0x233f7061, 0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb,
  150. 0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e, 0xa6078084, 0x19f8509e,
  151. 0xe8efd855, 0x61d99735, 0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc,
  152. 0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9, 0xdb73dbd3, 0x105588cd,
  153. 0x675fda79, 0xe3674340, 0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20,
  154. 0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7 };
  155. /** Initial value of S-box 3. */
  156. private static final int[] KS2 = {
  157. 0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934, 0x411520f7, 0x7602d4f7,
  158. 0xbcf46b2e, 0xd4a20068, 0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af,
  159. 0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840, 0x4d95fc1d, 0x96b591af,
  160. 0x70f4ddd3, 0x66a02f45, 0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504,
  161. 0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a, 0x28507825, 0x530429f4,
  162. 0x0a2c86da, 0xe9b66dfb, 0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee,
  163. 0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6, 0xaace1e7c, 0xd3375fec,
  164. 0xce78a399, 0x406b2a42, 0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b,
  165. 0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2, 0x3a6efa74, 0xdd5b4332,
  166. 0x6841e7f7, 0xca7820fb, 0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527,
  167. 0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b, 0x55a867bc, 0xa1159a58,
  168. 0xcca92963, 0x99e1db33, 0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c,
  169. 0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3, 0x95c11548, 0xe4c66d22,
  170. 0x48c1133f, 0xc70f86dc, 0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17,
  171. 0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564, 0x257b7834, 0x602a9c60,
  172. 0xdff8e8a3, 0x1f636c1b, 0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115,
  173. 0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922, 0x85b2a20e, 0xe6ba0d99,
  174. 0xde720c8c, 0x2da2f728, 0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0,
  175. 0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e, 0x0a476341, 0x992eff74,
  176. 0x3a6f6eab, 0xf4f8fd37, 0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d,
  177. 0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804, 0xf1290dc7, 0xcc00ffa3,
  178. 0xb5390f92, 0x690fed0b, 0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3,
  179. 0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb, 0x37392eb3, 0xcc115979,
  180. 0x8026e297, 0xf42e312d, 0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c,
  181. 0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350, 0x1a6b1018, 0x11caedfa,
  182. 0x3d25bdd8, 0xe2e1c3c9, 0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a,
  183. 0x64af674e, 0xda86a85f, 0xbebfe988, 0x64e4c3fe, 0x9dbc8057, 0xf0f7c086,
  184. 0x60787bf8, 0x6003604d, 0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc,
  185. 0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f, 0x77a057be, 0xbde8ae24,
  186. 0x55464299, 0xbf582e61, 0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2,
  187. 0x5366f9c3, 0xc8b38e74, 0xb475f255, 0x46fcd9b9, 0x7aeb2661, 0x8b1ddf84,
  188. 0x846a0e79, 0x915f95e2, 0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c,
  189. 0xb90bace1, 0xbb8205d0, 0x11a86248, 0x7574a99e, 0xb77f19b6, 0xe0a9dc09,
  190. 0x662d09a1, 0xc4324633, 0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10,
  191. 0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169, 0xdcb7da83, 0x573906fe,
  192. 0xa1e2ce9b, 0x4fcd7f52, 0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027,
  193. 0x9af88c27, 0x773f8641, 0xc3604c06, 0x61a806b5, 0xf0177a28, 0xc0f586e0,
  194. 0x006058aa, 0x30dc7d62, 0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634,
  195. 0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76, 0x6f05e409, 0x4b7c0188,
  196. 0x39720a3d, 0x7c927c24, 0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc,
  197. 0xed545578, 0x08fca5b5, 0xd83d7cd3, 0x4dad0fc4, 0x1e50ef5e, 0xb161e6f8,
  198. 0xa28514d9, 0x6c51133c, 0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837,
  199. 0xd79a3234, 0x92638212, 0x670efa8e, 0x406000e0 };
  200. /** Initial value of S-box 4. */
  201. private static final int[] KS3 = {
  202. 0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b, 0x5cb0679e, 0x4fa33742,
  203. 0xd3822740, 0x99bc9bbe, 0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b,
  204. 0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4, 0x5748ab2f, 0xbc946e79,
  205. 0xc6a376d2, 0x6549c2c8, 0x530ff8ee, 0x468dde7d, 0xd5730a1d, 0x4cd04dc6,
  206. 0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304, 0xa1fad5f0, 0x6a2d519a,
  207. 0x63ef8ce2, 0x9a86ee22, 0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4,
  208. 0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6, 0x2826a2f9, 0xa73a3ae1,
  209. 0x4ba99586, 0xef5562e9, 0xc72fefd3, 0xf752f7da, 0x3f046f69, 0x77fa0a59,
  210. 0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593, 0xe990fd5a, 0x9e34d797,
  211. 0x2cf0b7d9, 0x022b8b51, 0x96d5ac3a, 0x017da67d, 0xd1cf3ed6, 0x7c7d2d28,
  212. 0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c, 0xe029ac71, 0xe019a5e6,
  213. 0x47b0acfd, 0xed93fa9b, 0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28,
  214. 0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c, 0x15056dd4, 0x88f46dba,
  215. 0x03a16125, 0x0564f0bd, 0xc3eb9e15, 0x3c9057a2, 0x97271aec, 0xa93a072a,
  216. 0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319, 0x7533d928, 0xb155fdf5,
  217. 0x03563482, 0x8aba3cbb, 0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f,
  218. 0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991, 0xea7a90c2, 0xfb3e7bce,
  219. 0x5121ce64, 0x774fbe32, 0xa8b6e37e, 0xc3293d46, 0x48de5369, 0x6413e680,
  220. 0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166, 0xb39a460a, 0x6445c0dd,
  221. 0x586cdecf, 0x1c20c8ae, 0x5bbef7dd, 0x1b588d40, 0xccd2017f, 0x6bb4e3bb,
  222. 0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5, 0x72eacea8, 0xfa6484bb,
  223. 0x8d6612ae, 0xbf3c6f47, 0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370,
  224. 0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d, 0x4040cb08, 0x4eb4e2cc,
  225. 0x34d2466a, 0x0115af84, 0xe1b00428, 0x95983a1d, 0x06b89fb4, 0xce6ea048,
  226. 0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8, 0x611560b1, 0xe7933fdc,
  227. 0xbb3a792b, 0x344525bd, 0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9,
  228. 0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7, 0x1a908749, 0xd44fbd9a,
  229. 0xd0dadecb, 0xd50ada38, 0x0339c32a, 0xc6913667, 0x8df9317c, 0xe0b12b4f,
  230. 0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c, 0xbf97222c, 0x15e6fc2a,
  231. 0x0f91fc71, 0x9b941525, 0xfae59361, 0xceb69ceb, 0xc2a86459, 0x12baa8d1,
  232. 0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442, 0xe0ec6e0e, 0x1698db3b,
  233. 0x4c98a0be, 0x3278e964, 0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e,
  234. 0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8, 0xdf359f8d, 0x9b992f2e,
  235. 0xe60b6f47, 0x0fe3f11d, 0xe54cda54, 0x1edad891, 0xce6279cf, 0xcd3e7e6f,
  236. 0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299, 0xf523f357, 0xa6327623,
  237. 0x93a83531, 0x56cccd02, 0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc,
  238. 0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614, 0xe6c6c7bd, 0x327a140a,
  239. 0x45e1d006, 0xc3f27b9a, 0xc9aa53fd, 0x62a80f00, 0xbb25bfe2, 0x35bdd2f6,
  240. 0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b, 0x53113ec0, 0x1640e3d3,
  241. 0x38abbd60, 0x2547adf0, 0xba38209c, 0xf746ce76, 0x77afa1c5, 0x20756060,
  242. 0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e, 0x1948c25c, 0x02fb8a8c,
  243. 0x01c36ae4, 0xd6ebe1f9, 0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f,
  244. 0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6 };
  245. /** Cache of the self test. */
  246. private static Boolean valid;
  247. /**
  248. * Test vector, as published in
  249. * href="http://www.counterpane.com/vectors.txt">http://www.counterpane.com/vectors.txt</a>.
  250. *
  251. * KEY=0000000000000000
  252. * PT=0000000000000000
  253. * CT=4EF997456198DD78
  254. */
  255. private static final byte[] TV_KEY = Util.toBytesFromString("0000000000000000");
  256. private static final byte[] TV_CT = Util.toBytesFromString("4EF997456198DD78");
  257. public Blowfish()
  258. {
  259. super(Registry.BLOWFISH_CIPHER, DEFAULT_BLOCK_SIZE, DEFAULT_KEY_SIZE);
  260. }
  261. public Object clone()
  262. {
  263. Blowfish result = new Blowfish();
  264. result.currentBlockSize = currentBlockSize;
  265. return result;
  266. }
  267. public Iterator keySizes()
  268. {
  269. return new Sequence(8, MAX_KEY_LENGTH, 8).iterator();
  270. }
  271. public Iterator blockSizes()
  272. {
  273. return Collections.singleton(Integer.valueOf(DEFAULT_BLOCK_SIZE)).iterator();
  274. }
  275. public Object makeKey(byte[] k, int bs)
  276. {
  277. Context ctx = new Context();
  278. System.arraycopy(P, 0, ctx.p, 0, P.length);
  279. System.arraycopy(KS0, 0, ctx.s0, 0, KS0.length);
  280. System.arraycopy(KS1, 0, ctx.s1, 0, KS1.length);
  281. System.arraycopy(KS2, 0, ctx.s2, 0, KS2.length);
  282. System.arraycopy(KS3, 0, ctx.s3, 0, KS3.length);
  283. // XOR the key with the P-box
  284. int l = 0;
  285. for (int i = 0; i < ctx.p.length; i++)
  286. {
  287. int data = 0;
  288. for (int j = 0; j < 4; j++)
  289. {
  290. data = (data << 8) | (k[l++] & 0xff);
  291. if (l >= k.length)
  292. l = 0;
  293. }
  294. ctx.p[i] ^= data;
  295. }
  296. // We swap the left and right words here only, so we can avoid
  297. // swapping altogether during encryption/decryption.
  298. int t;
  299. Block x = new Block();
  300. x.left = x.right = 0;
  301. for (int i = 0; i < ctx.p.length; i += 2)
  302. {
  303. blowfishEncrypt(x, ctx);
  304. ctx.p[i] = x.right;
  305. ctx.p[i + 1] = x.left;
  306. t = x.right;
  307. x.right = x.left;
  308. x.left = t;
  309. }
  310. for (int i = 0; i < ctx.s0.length; i += 2)
  311. {
  312. blowfishEncrypt(x, ctx);
  313. ctx.s0[i] = x.right;
  314. ctx.s0[i + 1] = x.left;
  315. t = x.right;
  316. x.right = x.left;
  317. x.left = t;
  318. }
  319. for (int i = 0; i < ctx.s1.length; i += 2)
  320. {
  321. blowfishEncrypt(x, ctx);
  322. ctx.s1[i] = x.right;
  323. ctx.s1[i + 1] = x.left;
  324. t = x.right;
  325. x.right = x.left;
  326. x.left = t;
  327. }
  328. for (int i = 0; i < ctx.s2.length; i += 2)
  329. {
  330. blowfishEncrypt(x, ctx);
  331. ctx.s2[i] = x.right;
  332. ctx.s2[i + 1] = x.left;
  333. t = x.right;
  334. x.right = x.left;
  335. x.left = t;
  336. }
  337. for (int i = 0; i < ctx.s3.length; i += 2)
  338. {
  339. blowfishEncrypt(x, ctx);
  340. ctx.s3[i] = x.right;
  341. ctx.s3[i + 1] = x.left;
  342. t = x.right;
  343. x.right = x.left;
  344. x.left = t;
  345. }
  346. x.left = x.right = 0;
  347. return ctx;
  348. }
  349. public void encrypt(byte[] in, int i, byte[] out, int o, Object k, int bs)
  350. {
  351. Block x = new Block();
  352. x.left = (in[i ] & 0xff) << 24
  353. | (in[i + 1] & 0xff) << 16
  354. | (in[i + 2] & 0xff) << 8
  355. | (in[i + 3] & 0xff);
  356. x.right = (in[i + 4] & 0xff) << 24
  357. | (in[i + 5] & 0xff) << 16
  358. | (in[i + 6] & 0xff) << 8
  359. | (in[i + 7] & 0xff);
  360. blowfishEncrypt(x, (Context) k);
  361. out[o ] = (byte)(x.right >>> 24);
  362. out[o + 1] = (byte)(x.right >>> 16);
  363. out[o + 2] = (byte)(x.right >>> 8);
  364. out[o + 3] = (byte) x.right;
  365. out[o + 4] = (byte)(x.left >>> 24);
  366. out[o + 5] = (byte)(x.left >>> 16);
  367. out[o + 6] = (byte)(x.left >>> 8);
  368. out[o + 7] = (byte) x.left;
  369. x.left = x.right = 0;
  370. }
  371. public void decrypt(byte[] in, int i, byte[] out, int o, Object k, int bs)
  372. {
  373. Block x = new Block();
  374. x.left = (in[i ] & 0xff) << 24
  375. | (in[i + 1] & 0xff) << 16
  376. | (in[i + 2] & 0xff) << 8
  377. | (in[i + 3] & 0xff);
  378. x.right = (in[i + 4] & 0xff) << 24
  379. | (in[i + 5] & 0xff) << 16
  380. | (in[i + 6] & 0xff) << 8
  381. | (in[i + 7] & 0xff);
  382. blowfishDecrypt(x, (Context) k);
  383. out[o ] = (byte)(x.right >>> 24);
  384. out[o + 1] = (byte)(x.right >>> 16);
  385. out[o + 2] = (byte)(x.right >>> 8);
  386. out[o + 3] = (byte) x.right;
  387. out[o + 4] = (byte)(x.left >>> 24);
  388. out[o + 5] = (byte)(x.left >>> 16);
  389. out[o + 6] = (byte)(x.left >>> 8);
  390. out[o + 7] = (byte) x.left;
  391. x.left = x.right = 0;
  392. }
  393. /** Encrypt a single pair of 32-bit integers. */
  394. private void blowfishEncrypt(Block x, Context ctx)
  395. {
  396. int[] p = ctx.p;
  397. int[] s0 = ctx.s0, s1 = ctx.s1, s2 = ctx.s2, s3 = ctx.s3;
  398. x.left ^= p[0];
  399. x.right ^= ((s0[x.left >>> 24 ]
  400. + s1[x.left >>> 16 & 0xff])
  401. ^ s2[x.left >>> 8 & 0xff])
  402. + s3[x.left & 0xff] ^ p[1];
  403. x.left ^= ((s0[x.right >>> 24 ]
  404. + s1[x.right >>> 16 & 0xff])
  405. ^ s2[x.right >>> 8 & 0xff])
  406. + s3[x.right & 0xff] ^ p[2];
  407. x.right ^= ((s0[x.left >>> 24 ]
  408. + s1[x.left >>> 16 & 0xff])
  409. ^ s2[x.left >>> 8 & 0xff])
  410. + s3[x.left & 0xff] ^ p[3];
  411. x.left ^= ((s0[x.right >>> 24 ]
  412. + s1[x.right >>> 16 & 0xff])
  413. ^ s2[x.right >>> 8 & 0xff])
  414. + s3[x.right & 0xff] ^ p[4];
  415. x.right ^= ((s0[x.left >>> 24 ]
  416. + s1[x.left >>> 16 & 0xff])
  417. ^ s2[x.left >>> 8 & 0xff])
  418. + s3[x.left & 0xff] ^ p[5];
  419. x.left ^= ((s0[x.right >>> 24 ]
  420. + s1[x.right >>> 16 & 0xff])
  421. ^ s2[x.right >>> 8 & 0xff])
  422. + s3[x.right & 0xff] ^ p[6];
  423. x.right ^= ((s0[x.left >>> 24 ]
  424. + s1[x.left >>> 16 & 0xff])
  425. ^ s2[x.left >>> 8 & 0xff])
  426. + s3[x.left & 0xff] ^ p[7];
  427. x.left ^= ((s0[x.right >>> 24 ]
  428. + s1[x.right >>> 16 & 0xff])
  429. ^ s2[x.right >>> 8 & 0xff])
  430. + s3[x.right & 0xff] ^ p[8];
  431. x.right ^= ((s0[x.left >>> 24 ]
  432. + s1[x.left >>> 16 & 0xff])
  433. ^ s2[x.left >>> 8 & 0xff])
  434. + s3[x.left & 0xff] ^ p[9];
  435. x.left ^= ((s0[x.right >>> 24 ]
  436. + s1[x.right >>> 16 & 0xff])
  437. ^ s2[x.right >>> 8 & 0xff])
  438. + s3[x.right & 0xff] ^ p[10];
  439. x.right ^= ((s0[x.left >>> 24 ]
  440. + s1[x.left >>> 16 & 0xff])
  441. ^ s2[x.left >>> 8 & 0xff])
  442. + s3[x.left & 0xff] ^ p[11];
  443. x.left ^= ((s0[x.right >>> 24 ]
  444. + s1[x.right >>> 16 & 0xff])
  445. ^ s2[x.right >>> 8 & 0xff])
  446. + s3[x.right & 0xff] ^ p[12];
  447. x.right ^= ((s0[x.left >>> 24 ]
  448. + s1[x.left >>> 16 & 0xff])
  449. ^ s2[x.left >>> 8 & 0xff])
  450. + s3[x.left & 0xff] ^ p[13];
  451. x.left ^= ((s0[x.right >>> 24 ]
  452. + s1[x.right >>> 16 & 0xff])
  453. ^ s2[x.right >>> 8 & 0xff])
  454. + s3[x.right & 0xff] ^ p[14];
  455. x.right ^= ((s0[x.left >>> 24 ]
  456. + s1[x.left >>> 16 & 0xff])
  457. ^ s2[x.left >>> 8 & 0xff])
  458. + s3[x.left & 0xff] ^ p[15];
  459. x.left ^= ((s0[x.right >>> 24 ]
  460. + s1[x.right >>> 16 & 0xff])
  461. ^ s2[x.right >>> 8 & 0xff])
  462. + s3[x.right & 0xff] ^ p[16];
  463. x.right ^= p[17];
  464. }
  465. /** Decrypt a single pair of 32-bit integers. */
  466. private void blowfishDecrypt(Block x, Context ctx)
  467. {
  468. int[] p = ctx.p;
  469. int[] s0 = ctx.s0, s1 = ctx.s1, s2 = ctx.s2, s3 = ctx.s3;
  470. x.left ^= p[17];
  471. x.right ^= ((s0[x.left >>> 24 ]
  472. + s1[x.left >>> 16 & 0xff])
  473. ^ s2[x.left >>> 8 & 0xff])
  474. + s3[x.left & 0xff] ^ p[16];
  475. x.left ^= ((s0[x.right >>> 24 ]
  476. + s1[x.right >>> 16 & 0xff])
  477. ^ s2[x.right >>> 8 & 0xff])
  478. + s3[x.right & 0xff] ^ p[15];
  479. x.right ^= ((s0[x.left >>> 24 ]
  480. + s1[x.left >>> 16 & 0xff])
  481. ^ s2[x.left >>> 8 & 0xff])
  482. + s3[x.left & 0xff] ^ p[14];
  483. x.left ^= ((s0[x.right >>> 24 ]
  484. + s1[x.right >>> 16 & 0xff])
  485. ^ s2[x.right >>> 8 & 0xff])
  486. + s3[x.right & 0xff] ^ p[13];
  487. x.right ^= ((s0[x.left >>> 24 ]
  488. + s1[x.left >>> 16 & 0xff])
  489. ^ s2[x.left >>> 8 & 0xff])
  490. + s3[x.left & 0xff] ^ p[12];
  491. x.left ^= ((s0[x.right >>> 24 ]
  492. + s1[x.right >>> 16 & 0xff])
  493. ^ s2[x.right >>> 8 & 0xff])
  494. + s3[x.right & 0xff] ^ p[11];
  495. x.right ^= ((s0[x.left >>> 24 ]
  496. + s1[x.left >>> 16 & 0xff])
  497. ^ s2[x.left >>> 8 & 0xff])
  498. + s3[x.left & 0xff] ^ p[10];
  499. x.left ^= ((s0[x.right >>> 24 ]
  500. + s1[x.right >>> 16 & 0xff])
  501. ^ s2[x.right >>> 8 & 0xff])
  502. + s3[x.right & 0xff] ^ p[9];
  503. x.right ^= ((s0[x.left >>> 24]
  504. + s1[x.left >>> 16 & 0xff])
  505. ^ s2[x.left >>> 8 & 0xff])
  506. + s3[x.left & 0xff] ^ p[8];
  507. x.left ^= ((s0[x.right >>> 24 ]
  508. + s1[x.right >>> 16 & 0xff])
  509. ^ s2[x.right >>> 8 & 0xff])
  510. + s3[x.right & 0xff] ^ p[7];
  511. x.right ^= ((s0[x.left >>> 24 ]
  512. + s1[x.left >>> 16 & 0xff])
  513. ^ s2[x.left >>> 8 & 0xff])
  514. + s3[x.left & 0xff] ^ p[6];
  515. x.left ^= ((s0[x.right >>> 24 ]
  516. + s1[x.right >>> 16 & 0xff])
  517. ^ s2[x.right >>> 8 & 0xff])
  518. + s3[x.right & 0xff] ^ p[5];
  519. x.right ^= ((s0[x.left >>> 24 ]
  520. + s1[x.left >>> 16 & 0xff])
  521. ^ s2[x.left >>> 8 & 0xff])
  522. + s3[x.left & 0xff] ^ p[4];
  523. x.left ^= ((s0[x.right >>> 24 ]
  524. + s1[x.right >>> 16 & 0xff])
  525. ^ s2[x.right >>> 8 & 0xff])
  526. + s3[x.right & 0xff] ^ p[3];
  527. x.right ^= ((s0[x.left >>> 24 ]
  528. + s1[x.left >>> 16 & 0xff])
  529. ^ s2[x.left >>> 8 & 0xff])
  530. + s3[x.left & 0xff] ^ p[2];
  531. x.left ^= ((s0[x.right >>> 24 ]
  532. + s1[x.right >>> 16 & 0xff])
  533. ^ s2[x.right >>> 8 & 0xff])
  534. + s3[x.right & 0xff] ^ p[1];
  535. x.right ^= p[0];
  536. }
  537. public boolean selfTest()
  538. {
  539. if (valid == null)
  540. {
  541. boolean result = super.selfTest(); // symmetry
  542. if (result)
  543. result = testKat(TV_KEY, TV_CT);
  544. valid = Boolean.valueOf(result);
  545. }
  546. return valid.booleanValue();
  547. }
  548. /** A simple wrapper for the P- and S-boxes. */
  549. private class Context
  550. implements Cloneable
  551. {
  552. /** The P-array. */
  553. int[] p, s0, s1, s2, s3;
  554. /** Default 0-arguments constructor. */
  555. Context()
  556. {
  557. p = new int[18];
  558. s0 = new int[256];
  559. s1 = new int[256];
  560. s2 = new int[256];
  561. s3 = new int[256];
  562. }
  563. /**
  564. * Private constructor for cloneing.
  565. *
  566. * @param that The instance being cloned.
  567. */
  568. private Context(Context that)
  569. {
  570. this.p = (int[]) that.p.clone();
  571. this.s0 = (int[]) that.s0.clone();
  572. this.s1 = (int[]) that.s1.clone();
  573. this.s2 = (int[]) that.s2.clone();
  574. this.s3 = (int[]) that.s3.clone();
  575. }
  576. public Object clone()
  577. {
  578. return new Context(this);
  579. }
  580. }
  581. private class Block
  582. {
  583. int left, right;
  584. }
  585. }