camellia_generic.c 34 KB

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  1. // SPDX-License-Identifier: GPL-2.0-or-later
  2. /*
  3. * Copyright (C) 2006
  4. * NTT (Nippon Telegraph and Telephone Corporation).
  5. */
  6. /*
  7. * Algorithm Specification
  8. * https://info.isl.ntt.co.jp/crypt/eng/camellia/specifications.html
  9. */
  10. #include <linux/crypto.h>
  11. #include <linux/errno.h>
  12. #include <linux/init.h>
  13. #include <linux/kernel.h>
  14. #include <linux/module.h>
  15. #include <linux/bitops.h>
  16. #include <asm/unaligned.h>
  17. static const u32 camellia_sp1110[256] = {
  18. 0x70707000, 0x82828200, 0x2c2c2c00, 0xececec00,
  19. 0xb3b3b300, 0x27272700, 0xc0c0c000, 0xe5e5e500,
  20. 0xe4e4e400, 0x85858500, 0x57575700, 0x35353500,
  21. 0xeaeaea00, 0x0c0c0c00, 0xaeaeae00, 0x41414100,
  22. 0x23232300, 0xefefef00, 0x6b6b6b00, 0x93939300,
  23. 0x45454500, 0x19191900, 0xa5a5a500, 0x21212100,
  24. 0xededed00, 0x0e0e0e00, 0x4f4f4f00, 0x4e4e4e00,
  25. 0x1d1d1d00, 0x65656500, 0x92929200, 0xbdbdbd00,
  26. 0x86868600, 0xb8b8b800, 0xafafaf00, 0x8f8f8f00,
  27. 0x7c7c7c00, 0xebebeb00, 0x1f1f1f00, 0xcecece00,
  28. 0x3e3e3e00, 0x30303000, 0xdcdcdc00, 0x5f5f5f00,
  29. 0x5e5e5e00, 0xc5c5c500, 0x0b0b0b00, 0x1a1a1a00,
  30. 0xa6a6a600, 0xe1e1e100, 0x39393900, 0xcacaca00,
  31. 0xd5d5d500, 0x47474700, 0x5d5d5d00, 0x3d3d3d00,
  32. 0xd9d9d900, 0x01010100, 0x5a5a5a00, 0xd6d6d600,
  33. 0x51515100, 0x56565600, 0x6c6c6c00, 0x4d4d4d00,
  34. 0x8b8b8b00, 0x0d0d0d00, 0x9a9a9a00, 0x66666600,
  35. 0xfbfbfb00, 0xcccccc00, 0xb0b0b000, 0x2d2d2d00,
  36. 0x74747400, 0x12121200, 0x2b2b2b00, 0x20202000,
  37. 0xf0f0f000, 0xb1b1b100, 0x84848400, 0x99999900,
  38. 0xdfdfdf00, 0x4c4c4c00, 0xcbcbcb00, 0xc2c2c200,
  39. 0x34343400, 0x7e7e7e00, 0x76767600, 0x05050500,
  40. 0x6d6d6d00, 0xb7b7b700, 0xa9a9a900, 0x31313100,
  41. 0xd1d1d100, 0x17171700, 0x04040400, 0xd7d7d700,
  42. 0x14141400, 0x58585800, 0x3a3a3a00, 0x61616100,
  43. 0xdedede00, 0x1b1b1b00, 0x11111100, 0x1c1c1c00,
  44. 0x32323200, 0x0f0f0f00, 0x9c9c9c00, 0x16161600,
  45. 0x53535300, 0x18181800, 0xf2f2f200, 0x22222200,
  46. 0xfefefe00, 0x44444400, 0xcfcfcf00, 0xb2b2b200,
  47. 0xc3c3c300, 0xb5b5b500, 0x7a7a7a00, 0x91919100,
  48. 0x24242400, 0x08080800, 0xe8e8e800, 0xa8a8a800,
  49. 0x60606000, 0xfcfcfc00, 0x69696900, 0x50505000,
  50. 0xaaaaaa00, 0xd0d0d000, 0xa0a0a000, 0x7d7d7d00,
  51. 0xa1a1a100, 0x89898900, 0x62626200, 0x97979700,
  52. 0x54545400, 0x5b5b5b00, 0x1e1e1e00, 0x95959500,
  53. 0xe0e0e000, 0xffffff00, 0x64646400, 0xd2d2d200,
  54. 0x10101000, 0xc4c4c400, 0x00000000, 0x48484800,
  55. 0xa3a3a300, 0xf7f7f700, 0x75757500, 0xdbdbdb00,
  56. 0x8a8a8a00, 0x03030300, 0xe6e6e600, 0xdadada00,
  57. 0x09090900, 0x3f3f3f00, 0xdddddd00, 0x94949400,
  58. 0x87878700, 0x5c5c5c00, 0x83838300, 0x02020200,
  59. 0xcdcdcd00, 0x4a4a4a00, 0x90909000, 0x33333300,
  60. 0x73737300, 0x67676700, 0xf6f6f600, 0xf3f3f300,
  61. 0x9d9d9d00, 0x7f7f7f00, 0xbfbfbf00, 0xe2e2e200,
  62. 0x52525200, 0x9b9b9b00, 0xd8d8d800, 0x26262600,
  63. 0xc8c8c800, 0x37373700, 0xc6c6c600, 0x3b3b3b00,
  64. 0x81818100, 0x96969600, 0x6f6f6f00, 0x4b4b4b00,
  65. 0x13131300, 0xbebebe00, 0x63636300, 0x2e2e2e00,
  66. 0xe9e9e900, 0x79797900, 0xa7a7a700, 0x8c8c8c00,
  67. 0x9f9f9f00, 0x6e6e6e00, 0xbcbcbc00, 0x8e8e8e00,
  68. 0x29292900, 0xf5f5f500, 0xf9f9f900, 0xb6b6b600,
  69. 0x2f2f2f00, 0xfdfdfd00, 0xb4b4b400, 0x59595900,
  70. 0x78787800, 0x98989800, 0x06060600, 0x6a6a6a00,
  71. 0xe7e7e700, 0x46464600, 0x71717100, 0xbababa00,
  72. 0xd4d4d400, 0x25252500, 0xababab00, 0x42424200,
  73. 0x88888800, 0xa2a2a200, 0x8d8d8d00, 0xfafafa00,
  74. 0x72727200, 0x07070700, 0xb9b9b900, 0x55555500,
  75. 0xf8f8f800, 0xeeeeee00, 0xacacac00, 0x0a0a0a00,
  76. 0x36363600, 0x49494900, 0x2a2a2a00, 0x68686800,
  77. 0x3c3c3c00, 0x38383800, 0xf1f1f100, 0xa4a4a400,
  78. 0x40404000, 0x28282800, 0xd3d3d300, 0x7b7b7b00,
  79. 0xbbbbbb00, 0xc9c9c900, 0x43434300, 0xc1c1c100,
  80. 0x15151500, 0xe3e3e300, 0xadadad00, 0xf4f4f400,
  81. 0x77777700, 0xc7c7c700, 0x80808000, 0x9e9e9e00,
  82. };
  83. static const u32 camellia_sp0222[256] = {
  84. 0x00e0e0e0, 0x00050505, 0x00585858, 0x00d9d9d9,
  85. 0x00676767, 0x004e4e4e, 0x00818181, 0x00cbcbcb,
  86. 0x00c9c9c9, 0x000b0b0b, 0x00aeaeae, 0x006a6a6a,
  87. 0x00d5d5d5, 0x00181818, 0x005d5d5d, 0x00828282,
  88. 0x00464646, 0x00dfdfdf, 0x00d6d6d6, 0x00272727,
  89. 0x008a8a8a, 0x00323232, 0x004b4b4b, 0x00424242,
  90. 0x00dbdbdb, 0x001c1c1c, 0x009e9e9e, 0x009c9c9c,
  91. 0x003a3a3a, 0x00cacaca, 0x00252525, 0x007b7b7b,
  92. 0x000d0d0d, 0x00717171, 0x005f5f5f, 0x001f1f1f,
  93. 0x00f8f8f8, 0x00d7d7d7, 0x003e3e3e, 0x009d9d9d,
  94. 0x007c7c7c, 0x00606060, 0x00b9b9b9, 0x00bebebe,
  95. 0x00bcbcbc, 0x008b8b8b, 0x00161616, 0x00343434,
  96. 0x004d4d4d, 0x00c3c3c3, 0x00727272, 0x00959595,
  97. 0x00ababab, 0x008e8e8e, 0x00bababa, 0x007a7a7a,
  98. 0x00b3b3b3, 0x00020202, 0x00b4b4b4, 0x00adadad,
  99. 0x00a2a2a2, 0x00acacac, 0x00d8d8d8, 0x009a9a9a,
  100. 0x00171717, 0x001a1a1a, 0x00353535, 0x00cccccc,
  101. 0x00f7f7f7, 0x00999999, 0x00616161, 0x005a5a5a,
  102. 0x00e8e8e8, 0x00242424, 0x00565656, 0x00404040,
  103. 0x00e1e1e1, 0x00636363, 0x00090909, 0x00333333,
  104. 0x00bfbfbf, 0x00989898, 0x00979797, 0x00858585,
  105. 0x00686868, 0x00fcfcfc, 0x00ececec, 0x000a0a0a,
  106. 0x00dadada, 0x006f6f6f, 0x00535353, 0x00626262,
  107. 0x00a3a3a3, 0x002e2e2e, 0x00080808, 0x00afafaf,
  108. 0x00282828, 0x00b0b0b0, 0x00747474, 0x00c2c2c2,
  109. 0x00bdbdbd, 0x00363636, 0x00222222, 0x00383838,
  110. 0x00646464, 0x001e1e1e, 0x00393939, 0x002c2c2c,
  111. 0x00a6a6a6, 0x00303030, 0x00e5e5e5, 0x00444444,
  112. 0x00fdfdfd, 0x00888888, 0x009f9f9f, 0x00656565,
  113. 0x00878787, 0x006b6b6b, 0x00f4f4f4, 0x00232323,
  114. 0x00484848, 0x00101010, 0x00d1d1d1, 0x00515151,
  115. 0x00c0c0c0, 0x00f9f9f9, 0x00d2d2d2, 0x00a0a0a0,
  116. 0x00555555, 0x00a1a1a1, 0x00414141, 0x00fafafa,
  117. 0x00434343, 0x00131313, 0x00c4c4c4, 0x002f2f2f,
  118. 0x00a8a8a8, 0x00b6b6b6, 0x003c3c3c, 0x002b2b2b,
  119. 0x00c1c1c1, 0x00ffffff, 0x00c8c8c8, 0x00a5a5a5,
  120. 0x00202020, 0x00898989, 0x00000000, 0x00909090,
  121. 0x00474747, 0x00efefef, 0x00eaeaea, 0x00b7b7b7,
  122. 0x00151515, 0x00060606, 0x00cdcdcd, 0x00b5b5b5,
  123. 0x00121212, 0x007e7e7e, 0x00bbbbbb, 0x00292929,
  124. 0x000f0f0f, 0x00b8b8b8, 0x00070707, 0x00040404,
  125. 0x009b9b9b, 0x00949494, 0x00212121, 0x00666666,
  126. 0x00e6e6e6, 0x00cecece, 0x00ededed, 0x00e7e7e7,
  127. 0x003b3b3b, 0x00fefefe, 0x007f7f7f, 0x00c5c5c5,
  128. 0x00a4a4a4, 0x00373737, 0x00b1b1b1, 0x004c4c4c,
  129. 0x00919191, 0x006e6e6e, 0x008d8d8d, 0x00767676,
  130. 0x00030303, 0x002d2d2d, 0x00dedede, 0x00969696,
  131. 0x00262626, 0x007d7d7d, 0x00c6c6c6, 0x005c5c5c,
  132. 0x00d3d3d3, 0x00f2f2f2, 0x004f4f4f, 0x00191919,
  133. 0x003f3f3f, 0x00dcdcdc, 0x00797979, 0x001d1d1d,
  134. 0x00525252, 0x00ebebeb, 0x00f3f3f3, 0x006d6d6d,
  135. 0x005e5e5e, 0x00fbfbfb, 0x00696969, 0x00b2b2b2,
  136. 0x00f0f0f0, 0x00313131, 0x000c0c0c, 0x00d4d4d4,
  137. 0x00cfcfcf, 0x008c8c8c, 0x00e2e2e2, 0x00757575,
  138. 0x00a9a9a9, 0x004a4a4a, 0x00575757, 0x00848484,
  139. 0x00111111, 0x00454545, 0x001b1b1b, 0x00f5f5f5,
  140. 0x00e4e4e4, 0x000e0e0e, 0x00737373, 0x00aaaaaa,
  141. 0x00f1f1f1, 0x00dddddd, 0x00595959, 0x00141414,
  142. 0x006c6c6c, 0x00929292, 0x00545454, 0x00d0d0d0,
  143. 0x00787878, 0x00707070, 0x00e3e3e3, 0x00494949,
  144. 0x00808080, 0x00505050, 0x00a7a7a7, 0x00f6f6f6,
  145. 0x00777777, 0x00939393, 0x00868686, 0x00838383,
  146. 0x002a2a2a, 0x00c7c7c7, 0x005b5b5b, 0x00e9e9e9,
  147. 0x00eeeeee, 0x008f8f8f, 0x00010101, 0x003d3d3d,
  148. };
  149. static const u32 camellia_sp3033[256] = {
  150. 0x38003838, 0x41004141, 0x16001616, 0x76007676,
  151. 0xd900d9d9, 0x93009393, 0x60006060, 0xf200f2f2,
  152. 0x72007272, 0xc200c2c2, 0xab00abab, 0x9a009a9a,
  153. 0x75007575, 0x06000606, 0x57005757, 0xa000a0a0,
  154. 0x91009191, 0xf700f7f7, 0xb500b5b5, 0xc900c9c9,
  155. 0xa200a2a2, 0x8c008c8c, 0xd200d2d2, 0x90009090,
  156. 0xf600f6f6, 0x07000707, 0xa700a7a7, 0x27002727,
  157. 0x8e008e8e, 0xb200b2b2, 0x49004949, 0xde00dede,
  158. 0x43004343, 0x5c005c5c, 0xd700d7d7, 0xc700c7c7,
  159. 0x3e003e3e, 0xf500f5f5, 0x8f008f8f, 0x67006767,
  160. 0x1f001f1f, 0x18001818, 0x6e006e6e, 0xaf00afaf,
  161. 0x2f002f2f, 0xe200e2e2, 0x85008585, 0x0d000d0d,
  162. 0x53005353, 0xf000f0f0, 0x9c009c9c, 0x65006565,
  163. 0xea00eaea, 0xa300a3a3, 0xae00aeae, 0x9e009e9e,
  164. 0xec00ecec, 0x80008080, 0x2d002d2d, 0x6b006b6b,
  165. 0xa800a8a8, 0x2b002b2b, 0x36003636, 0xa600a6a6,
  166. 0xc500c5c5, 0x86008686, 0x4d004d4d, 0x33003333,
  167. 0xfd00fdfd, 0x66006666, 0x58005858, 0x96009696,
  168. 0x3a003a3a, 0x09000909, 0x95009595, 0x10001010,
  169. 0x78007878, 0xd800d8d8, 0x42004242, 0xcc00cccc,
  170. 0xef00efef, 0x26002626, 0xe500e5e5, 0x61006161,
  171. 0x1a001a1a, 0x3f003f3f, 0x3b003b3b, 0x82008282,
  172. 0xb600b6b6, 0xdb00dbdb, 0xd400d4d4, 0x98009898,
  173. 0xe800e8e8, 0x8b008b8b, 0x02000202, 0xeb00ebeb,
  174. 0x0a000a0a, 0x2c002c2c, 0x1d001d1d, 0xb000b0b0,
  175. 0x6f006f6f, 0x8d008d8d, 0x88008888, 0x0e000e0e,
  176. 0x19001919, 0x87008787, 0x4e004e4e, 0x0b000b0b,
  177. 0xa900a9a9, 0x0c000c0c, 0x79007979, 0x11001111,
  178. 0x7f007f7f, 0x22002222, 0xe700e7e7, 0x59005959,
  179. 0xe100e1e1, 0xda00dada, 0x3d003d3d, 0xc800c8c8,
  180. 0x12001212, 0x04000404, 0x74007474, 0x54005454,
  181. 0x30003030, 0x7e007e7e, 0xb400b4b4, 0x28002828,
  182. 0x55005555, 0x68006868, 0x50005050, 0xbe00bebe,
  183. 0xd000d0d0, 0xc400c4c4, 0x31003131, 0xcb00cbcb,
  184. 0x2a002a2a, 0xad00adad, 0x0f000f0f, 0xca00caca,
  185. 0x70007070, 0xff00ffff, 0x32003232, 0x69006969,
  186. 0x08000808, 0x62006262, 0x00000000, 0x24002424,
  187. 0xd100d1d1, 0xfb00fbfb, 0xba00baba, 0xed00eded,
  188. 0x45004545, 0x81008181, 0x73007373, 0x6d006d6d,
  189. 0x84008484, 0x9f009f9f, 0xee00eeee, 0x4a004a4a,
  190. 0xc300c3c3, 0x2e002e2e, 0xc100c1c1, 0x01000101,
  191. 0xe600e6e6, 0x25002525, 0x48004848, 0x99009999,
  192. 0xb900b9b9, 0xb300b3b3, 0x7b007b7b, 0xf900f9f9,
  193. 0xce00cece, 0xbf00bfbf, 0xdf00dfdf, 0x71007171,
  194. 0x29002929, 0xcd00cdcd, 0x6c006c6c, 0x13001313,
  195. 0x64006464, 0x9b009b9b, 0x63006363, 0x9d009d9d,
  196. 0xc000c0c0, 0x4b004b4b, 0xb700b7b7, 0xa500a5a5,
  197. 0x89008989, 0x5f005f5f, 0xb100b1b1, 0x17001717,
  198. 0xf400f4f4, 0xbc00bcbc, 0xd300d3d3, 0x46004646,
  199. 0xcf00cfcf, 0x37003737, 0x5e005e5e, 0x47004747,
  200. 0x94009494, 0xfa00fafa, 0xfc00fcfc, 0x5b005b5b,
  201. 0x97009797, 0xfe00fefe, 0x5a005a5a, 0xac00acac,
  202. 0x3c003c3c, 0x4c004c4c, 0x03000303, 0x35003535,
  203. 0xf300f3f3, 0x23002323, 0xb800b8b8, 0x5d005d5d,
  204. 0x6a006a6a, 0x92009292, 0xd500d5d5, 0x21002121,
  205. 0x44004444, 0x51005151, 0xc600c6c6, 0x7d007d7d,
  206. 0x39003939, 0x83008383, 0xdc00dcdc, 0xaa00aaaa,
  207. 0x7c007c7c, 0x77007777, 0x56005656, 0x05000505,
  208. 0x1b001b1b, 0xa400a4a4, 0x15001515, 0x34003434,
  209. 0x1e001e1e, 0x1c001c1c, 0xf800f8f8, 0x52005252,
  210. 0x20002020, 0x14001414, 0xe900e9e9, 0xbd00bdbd,
  211. 0xdd00dddd, 0xe400e4e4, 0xa100a1a1, 0xe000e0e0,
  212. 0x8a008a8a, 0xf100f1f1, 0xd600d6d6, 0x7a007a7a,
  213. 0xbb00bbbb, 0xe300e3e3, 0x40004040, 0x4f004f4f,
  214. };
  215. static const u32 camellia_sp4404[256] = {
  216. 0x70700070, 0x2c2c002c, 0xb3b300b3, 0xc0c000c0,
  217. 0xe4e400e4, 0x57570057, 0xeaea00ea, 0xaeae00ae,
  218. 0x23230023, 0x6b6b006b, 0x45450045, 0xa5a500a5,
  219. 0xeded00ed, 0x4f4f004f, 0x1d1d001d, 0x92920092,
  220. 0x86860086, 0xafaf00af, 0x7c7c007c, 0x1f1f001f,
  221. 0x3e3e003e, 0xdcdc00dc, 0x5e5e005e, 0x0b0b000b,
  222. 0xa6a600a6, 0x39390039, 0xd5d500d5, 0x5d5d005d,
  223. 0xd9d900d9, 0x5a5a005a, 0x51510051, 0x6c6c006c,
  224. 0x8b8b008b, 0x9a9a009a, 0xfbfb00fb, 0xb0b000b0,
  225. 0x74740074, 0x2b2b002b, 0xf0f000f0, 0x84840084,
  226. 0xdfdf00df, 0xcbcb00cb, 0x34340034, 0x76760076,
  227. 0x6d6d006d, 0xa9a900a9, 0xd1d100d1, 0x04040004,
  228. 0x14140014, 0x3a3a003a, 0xdede00de, 0x11110011,
  229. 0x32320032, 0x9c9c009c, 0x53530053, 0xf2f200f2,
  230. 0xfefe00fe, 0xcfcf00cf, 0xc3c300c3, 0x7a7a007a,
  231. 0x24240024, 0xe8e800e8, 0x60600060, 0x69690069,
  232. 0xaaaa00aa, 0xa0a000a0, 0xa1a100a1, 0x62620062,
  233. 0x54540054, 0x1e1e001e, 0xe0e000e0, 0x64640064,
  234. 0x10100010, 0x00000000, 0xa3a300a3, 0x75750075,
  235. 0x8a8a008a, 0xe6e600e6, 0x09090009, 0xdddd00dd,
  236. 0x87870087, 0x83830083, 0xcdcd00cd, 0x90900090,
  237. 0x73730073, 0xf6f600f6, 0x9d9d009d, 0xbfbf00bf,
  238. 0x52520052, 0xd8d800d8, 0xc8c800c8, 0xc6c600c6,
  239. 0x81810081, 0x6f6f006f, 0x13130013, 0x63630063,
  240. 0xe9e900e9, 0xa7a700a7, 0x9f9f009f, 0xbcbc00bc,
  241. 0x29290029, 0xf9f900f9, 0x2f2f002f, 0xb4b400b4,
  242. 0x78780078, 0x06060006, 0xe7e700e7, 0x71710071,
  243. 0xd4d400d4, 0xabab00ab, 0x88880088, 0x8d8d008d,
  244. 0x72720072, 0xb9b900b9, 0xf8f800f8, 0xacac00ac,
  245. 0x36360036, 0x2a2a002a, 0x3c3c003c, 0xf1f100f1,
  246. 0x40400040, 0xd3d300d3, 0xbbbb00bb, 0x43430043,
  247. 0x15150015, 0xadad00ad, 0x77770077, 0x80800080,
  248. 0x82820082, 0xecec00ec, 0x27270027, 0xe5e500e5,
  249. 0x85850085, 0x35350035, 0x0c0c000c, 0x41410041,
  250. 0xefef00ef, 0x93930093, 0x19190019, 0x21210021,
  251. 0x0e0e000e, 0x4e4e004e, 0x65650065, 0xbdbd00bd,
  252. 0xb8b800b8, 0x8f8f008f, 0xebeb00eb, 0xcece00ce,
  253. 0x30300030, 0x5f5f005f, 0xc5c500c5, 0x1a1a001a,
  254. 0xe1e100e1, 0xcaca00ca, 0x47470047, 0x3d3d003d,
  255. 0x01010001, 0xd6d600d6, 0x56560056, 0x4d4d004d,
  256. 0x0d0d000d, 0x66660066, 0xcccc00cc, 0x2d2d002d,
  257. 0x12120012, 0x20200020, 0xb1b100b1, 0x99990099,
  258. 0x4c4c004c, 0xc2c200c2, 0x7e7e007e, 0x05050005,
  259. 0xb7b700b7, 0x31310031, 0x17170017, 0xd7d700d7,
  260. 0x58580058, 0x61610061, 0x1b1b001b, 0x1c1c001c,
  261. 0x0f0f000f, 0x16160016, 0x18180018, 0x22220022,
  262. 0x44440044, 0xb2b200b2, 0xb5b500b5, 0x91910091,
  263. 0x08080008, 0xa8a800a8, 0xfcfc00fc, 0x50500050,
  264. 0xd0d000d0, 0x7d7d007d, 0x89890089, 0x97970097,
  265. 0x5b5b005b, 0x95950095, 0xffff00ff, 0xd2d200d2,
  266. 0xc4c400c4, 0x48480048, 0xf7f700f7, 0xdbdb00db,
  267. 0x03030003, 0xdada00da, 0x3f3f003f, 0x94940094,
  268. 0x5c5c005c, 0x02020002, 0x4a4a004a, 0x33330033,
  269. 0x67670067, 0xf3f300f3, 0x7f7f007f, 0xe2e200e2,
  270. 0x9b9b009b, 0x26260026, 0x37370037, 0x3b3b003b,
  271. 0x96960096, 0x4b4b004b, 0xbebe00be, 0x2e2e002e,
  272. 0x79790079, 0x8c8c008c, 0x6e6e006e, 0x8e8e008e,
  273. 0xf5f500f5, 0xb6b600b6, 0xfdfd00fd, 0x59590059,
  274. 0x98980098, 0x6a6a006a, 0x46460046, 0xbaba00ba,
  275. 0x25250025, 0x42420042, 0xa2a200a2, 0xfafa00fa,
  276. 0x07070007, 0x55550055, 0xeeee00ee, 0x0a0a000a,
  277. 0x49490049, 0x68680068, 0x38380038, 0xa4a400a4,
  278. 0x28280028, 0x7b7b007b, 0xc9c900c9, 0xc1c100c1,
  279. 0xe3e300e3, 0xf4f400f4, 0xc7c700c7, 0x9e9e009e,
  280. };
  281. #define CAMELLIA_MIN_KEY_SIZE 16
  282. #define CAMELLIA_MAX_KEY_SIZE 32
  283. #define CAMELLIA_BLOCK_SIZE 16
  284. #define CAMELLIA_TABLE_BYTE_LEN 272
  285. /*
  286. * NB: L and R below stand for 'left' and 'right' as in written numbers.
  287. * That is, in (xxxL,xxxR) pair xxxL holds most significant digits,
  288. * _not_ least significant ones!
  289. */
  290. /* key constants */
  291. #define CAMELLIA_SIGMA1L (0xA09E667FL)
  292. #define CAMELLIA_SIGMA1R (0x3BCC908BL)
  293. #define CAMELLIA_SIGMA2L (0xB67AE858L)
  294. #define CAMELLIA_SIGMA2R (0x4CAA73B2L)
  295. #define CAMELLIA_SIGMA3L (0xC6EF372FL)
  296. #define CAMELLIA_SIGMA3R (0xE94F82BEL)
  297. #define CAMELLIA_SIGMA4L (0x54FF53A5L)
  298. #define CAMELLIA_SIGMA4R (0xF1D36F1CL)
  299. #define CAMELLIA_SIGMA5L (0x10E527FAL)
  300. #define CAMELLIA_SIGMA5R (0xDE682D1DL)
  301. #define CAMELLIA_SIGMA6L (0xB05688C2L)
  302. #define CAMELLIA_SIGMA6R (0xB3E6C1FDL)
  303. /*
  304. * macros
  305. */
  306. #define ROLDQ(ll, lr, rl, rr, w0, w1, bits) ({ \
  307. w0 = ll; \
  308. ll = (ll << bits) + (lr >> (32 - bits)); \
  309. lr = (lr << bits) + (rl >> (32 - bits)); \
  310. rl = (rl << bits) + (rr >> (32 - bits)); \
  311. rr = (rr << bits) + (w0 >> (32 - bits)); \
  312. })
  313. #define ROLDQo32(ll, lr, rl, rr, w0, w1, bits) ({ \
  314. w0 = ll; \
  315. w1 = lr; \
  316. ll = (lr << (bits - 32)) + (rl >> (64 - bits)); \
  317. lr = (rl << (bits - 32)) + (rr >> (64 - bits)); \
  318. rl = (rr << (bits - 32)) + (w0 >> (64 - bits)); \
  319. rr = (w0 << (bits - 32)) + (w1 >> (64 - bits)); \
  320. })
  321. #define CAMELLIA_F(xl, xr, kl, kr, yl, yr, il, ir, t0, t1) ({ \
  322. il = xl ^ kl; \
  323. ir = xr ^ kr; \
  324. t0 = il >> 16; \
  325. t1 = ir >> 16; \
  326. yl = camellia_sp1110[(u8)(ir)] \
  327. ^ camellia_sp0222[(u8)(t1 >> 8)] \
  328. ^ camellia_sp3033[(u8)(t1)] \
  329. ^ camellia_sp4404[(u8)(ir >> 8)]; \
  330. yr = camellia_sp1110[(u8)(t0 >> 8)] \
  331. ^ camellia_sp0222[(u8)(t0)] \
  332. ^ camellia_sp3033[(u8)(il >> 8)] \
  333. ^ camellia_sp4404[(u8)(il)]; \
  334. yl ^= yr; \
  335. yr = ror32(yr, 8); \
  336. yr ^= yl; \
  337. })
  338. #define SUBKEY_L(INDEX) (subkey[(INDEX)*2])
  339. #define SUBKEY_R(INDEX) (subkey[(INDEX)*2 + 1])
  340. static void camellia_setup_tail(u32 *subkey, u32 *subL, u32 *subR, int max)
  341. {
  342. u32 dw, tl, tr;
  343. u32 kw4l, kw4r;
  344. /* absorb kw2 to other subkeys */
  345. /* round 2 */
  346. subL[3] ^= subL[1]; subR[3] ^= subR[1];
  347. /* round 4 */
  348. subL[5] ^= subL[1]; subR[5] ^= subR[1];
  349. /* round 6 */
  350. subL[7] ^= subL[1]; subR[7] ^= subR[1];
  351. subL[1] ^= subR[1] & ~subR[9];
  352. dw = subL[1] & subL[9];
  353. subR[1] ^= rol32(dw, 1); /* modified for FLinv(kl2) */
  354. /* round 8 */
  355. subL[11] ^= subL[1]; subR[11] ^= subR[1];
  356. /* round 10 */
  357. subL[13] ^= subL[1]; subR[13] ^= subR[1];
  358. /* round 12 */
  359. subL[15] ^= subL[1]; subR[15] ^= subR[1];
  360. subL[1] ^= subR[1] & ~subR[17];
  361. dw = subL[1] & subL[17];
  362. subR[1] ^= rol32(dw, 1); /* modified for FLinv(kl4) */
  363. /* round 14 */
  364. subL[19] ^= subL[1]; subR[19] ^= subR[1];
  365. /* round 16 */
  366. subL[21] ^= subL[1]; subR[21] ^= subR[1];
  367. /* round 18 */
  368. subL[23] ^= subL[1]; subR[23] ^= subR[1];
  369. if (max == 24) {
  370. /* kw3 */
  371. subL[24] ^= subL[1]; subR[24] ^= subR[1];
  372. /* absorb kw4 to other subkeys */
  373. kw4l = subL[25]; kw4r = subR[25];
  374. } else {
  375. subL[1] ^= subR[1] & ~subR[25];
  376. dw = subL[1] & subL[25];
  377. subR[1] ^= rol32(dw, 1); /* modified for FLinv(kl6) */
  378. /* round 20 */
  379. subL[27] ^= subL[1]; subR[27] ^= subR[1];
  380. /* round 22 */
  381. subL[29] ^= subL[1]; subR[29] ^= subR[1];
  382. /* round 24 */
  383. subL[31] ^= subL[1]; subR[31] ^= subR[1];
  384. /* kw3 */
  385. subL[32] ^= subL[1]; subR[32] ^= subR[1];
  386. /* absorb kw4 to other subkeys */
  387. kw4l = subL[33]; kw4r = subR[33];
  388. /* round 23 */
  389. subL[30] ^= kw4l; subR[30] ^= kw4r;
  390. /* round 21 */
  391. subL[28] ^= kw4l; subR[28] ^= kw4r;
  392. /* round 19 */
  393. subL[26] ^= kw4l; subR[26] ^= kw4r;
  394. kw4l ^= kw4r & ~subR[24];
  395. dw = kw4l & subL[24];
  396. kw4r ^= rol32(dw, 1); /* modified for FL(kl5) */
  397. }
  398. /* round 17 */
  399. subL[22] ^= kw4l; subR[22] ^= kw4r;
  400. /* round 15 */
  401. subL[20] ^= kw4l; subR[20] ^= kw4r;
  402. /* round 13 */
  403. subL[18] ^= kw4l; subR[18] ^= kw4r;
  404. kw4l ^= kw4r & ~subR[16];
  405. dw = kw4l & subL[16];
  406. kw4r ^= rol32(dw, 1); /* modified for FL(kl3) */
  407. /* round 11 */
  408. subL[14] ^= kw4l; subR[14] ^= kw4r;
  409. /* round 9 */
  410. subL[12] ^= kw4l; subR[12] ^= kw4r;
  411. /* round 7 */
  412. subL[10] ^= kw4l; subR[10] ^= kw4r;
  413. kw4l ^= kw4r & ~subR[8];
  414. dw = kw4l & subL[8];
  415. kw4r ^= rol32(dw, 1); /* modified for FL(kl1) */
  416. /* round 5 */
  417. subL[6] ^= kw4l; subR[6] ^= kw4r;
  418. /* round 3 */
  419. subL[4] ^= kw4l; subR[4] ^= kw4r;
  420. /* round 1 */
  421. subL[2] ^= kw4l; subR[2] ^= kw4r;
  422. /* kw1 */
  423. subL[0] ^= kw4l; subR[0] ^= kw4r;
  424. /* key XOR is end of F-function */
  425. SUBKEY_L(0) = subL[0] ^ subL[2];/* kw1 */
  426. SUBKEY_R(0) = subR[0] ^ subR[2];
  427. SUBKEY_L(2) = subL[3]; /* round 1 */
  428. SUBKEY_R(2) = subR[3];
  429. SUBKEY_L(3) = subL[2] ^ subL[4]; /* round 2 */
  430. SUBKEY_R(3) = subR[2] ^ subR[4];
  431. SUBKEY_L(4) = subL[3] ^ subL[5]; /* round 3 */
  432. SUBKEY_R(4) = subR[3] ^ subR[5];
  433. SUBKEY_L(5) = subL[4] ^ subL[6]; /* round 4 */
  434. SUBKEY_R(5) = subR[4] ^ subR[6];
  435. SUBKEY_L(6) = subL[5] ^ subL[7]; /* round 5 */
  436. SUBKEY_R(6) = subR[5] ^ subR[7];
  437. tl = subL[10] ^ (subR[10] & ~subR[8]);
  438. dw = tl & subL[8]; /* FL(kl1) */
  439. tr = subR[10] ^ rol32(dw, 1);
  440. SUBKEY_L(7) = subL[6] ^ tl; /* round 6 */
  441. SUBKEY_R(7) = subR[6] ^ tr;
  442. SUBKEY_L(8) = subL[8]; /* FL(kl1) */
  443. SUBKEY_R(8) = subR[8];
  444. SUBKEY_L(9) = subL[9]; /* FLinv(kl2) */
  445. SUBKEY_R(9) = subR[9];
  446. tl = subL[7] ^ (subR[7] & ~subR[9]);
  447. dw = tl & subL[9]; /* FLinv(kl2) */
  448. tr = subR[7] ^ rol32(dw, 1);
  449. SUBKEY_L(10) = tl ^ subL[11]; /* round 7 */
  450. SUBKEY_R(10) = tr ^ subR[11];
  451. SUBKEY_L(11) = subL[10] ^ subL[12]; /* round 8 */
  452. SUBKEY_R(11) = subR[10] ^ subR[12];
  453. SUBKEY_L(12) = subL[11] ^ subL[13]; /* round 9 */
  454. SUBKEY_R(12) = subR[11] ^ subR[13];
  455. SUBKEY_L(13) = subL[12] ^ subL[14]; /* round 10 */
  456. SUBKEY_R(13) = subR[12] ^ subR[14];
  457. SUBKEY_L(14) = subL[13] ^ subL[15]; /* round 11 */
  458. SUBKEY_R(14) = subR[13] ^ subR[15];
  459. tl = subL[18] ^ (subR[18] & ~subR[16]);
  460. dw = tl & subL[16]; /* FL(kl3) */
  461. tr = subR[18] ^ rol32(dw, 1);
  462. SUBKEY_L(15) = subL[14] ^ tl; /* round 12 */
  463. SUBKEY_R(15) = subR[14] ^ tr;
  464. SUBKEY_L(16) = subL[16]; /* FL(kl3) */
  465. SUBKEY_R(16) = subR[16];
  466. SUBKEY_L(17) = subL[17]; /* FLinv(kl4) */
  467. SUBKEY_R(17) = subR[17];
  468. tl = subL[15] ^ (subR[15] & ~subR[17]);
  469. dw = tl & subL[17]; /* FLinv(kl4) */
  470. tr = subR[15] ^ rol32(dw, 1);
  471. SUBKEY_L(18) = tl ^ subL[19]; /* round 13 */
  472. SUBKEY_R(18) = tr ^ subR[19];
  473. SUBKEY_L(19) = subL[18] ^ subL[20]; /* round 14 */
  474. SUBKEY_R(19) = subR[18] ^ subR[20];
  475. SUBKEY_L(20) = subL[19] ^ subL[21]; /* round 15 */
  476. SUBKEY_R(20) = subR[19] ^ subR[21];
  477. SUBKEY_L(21) = subL[20] ^ subL[22]; /* round 16 */
  478. SUBKEY_R(21) = subR[20] ^ subR[22];
  479. SUBKEY_L(22) = subL[21] ^ subL[23]; /* round 17 */
  480. SUBKEY_R(22) = subR[21] ^ subR[23];
  481. if (max == 24) {
  482. SUBKEY_L(23) = subL[22]; /* round 18 */
  483. SUBKEY_R(23) = subR[22];
  484. SUBKEY_L(24) = subL[24] ^ subL[23]; /* kw3 */
  485. SUBKEY_R(24) = subR[24] ^ subR[23];
  486. } else {
  487. tl = subL[26] ^ (subR[26] & ~subR[24]);
  488. dw = tl & subL[24]; /* FL(kl5) */
  489. tr = subR[26] ^ rol32(dw, 1);
  490. SUBKEY_L(23) = subL[22] ^ tl; /* round 18 */
  491. SUBKEY_R(23) = subR[22] ^ tr;
  492. SUBKEY_L(24) = subL[24]; /* FL(kl5) */
  493. SUBKEY_R(24) = subR[24];
  494. SUBKEY_L(25) = subL[25]; /* FLinv(kl6) */
  495. SUBKEY_R(25) = subR[25];
  496. tl = subL[23] ^ (subR[23] & ~subR[25]);
  497. dw = tl & subL[25]; /* FLinv(kl6) */
  498. tr = subR[23] ^ rol32(dw, 1);
  499. SUBKEY_L(26) = tl ^ subL[27]; /* round 19 */
  500. SUBKEY_R(26) = tr ^ subR[27];
  501. SUBKEY_L(27) = subL[26] ^ subL[28]; /* round 20 */
  502. SUBKEY_R(27) = subR[26] ^ subR[28];
  503. SUBKEY_L(28) = subL[27] ^ subL[29]; /* round 21 */
  504. SUBKEY_R(28) = subR[27] ^ subR[29];
  505. SUBKEY_L(29) = subL[28] ^ subL[30]; /* round 22 */
  506. SUBKEY_R(29) = subR[28] ^ subR[30];
  507. SUBKEY_L(30) = subL[29] ^ subL[31]; /* round 23 */
  508. SUBKEY_R(30) = subR[29] ^ subR[31];
  509. SUBKEY_L(31) = subL[30]; /* round 24 */
  510. SUBKEY_R(31) = subR[30];
  511. SUBKEY_L(32) = subL[32] ^ subL[31]; /* kw3 */
  512. SUBKEY_R(32) = subR[32] ^ subR[31];
  513. }
  514. }
  515. static void camellia_setup128(const unsigned char *key, u32 *subkey)
  516. {
  517. u32 kll, klr, krl, krr;
  518. u32 il, ir, t0, t1, w0, w1;
  519. u32 subL[26];
  520. u32 subR[26];
  521. /**
  522. * k == kll || klr || krl || krr (|| is concatenation)
  523. */
  524. kll = get_unaligned_be32(key);
  525. klr = get_unaligned_be32(key + 4);
  526. krl = get_unaligned_be32(key + 8);
  527. krr = get_unaligned_be32(key + 12);
  528. /* generate KL dependent subkeys */
  529. /* kw1 */
  530. subL[0] = kll; subR[0] = klr;
  531. /* kw2 */
  532. subL[1] = krl; subR[1] = krr;
  533. /* rotation left shift 15bit */
  534. ROLDQ(kll, klr, krl, krr, w0, w1, 15);
  535. /* k3 */
  536. subL[4] = kll; subR[4] = klr;
  537. /* k4 */
  538. subL[5] = krl; subR[5] = krr;
  539. /* rotation left shift 15+30bit */
  540. ROLDQ(kll, klr, krl, krr, w0, w1, 30);
  541. /* k7 */
  542. subL[10] = kll; subR[10] = klr;
  543. /* k8 */
  544. subL[11] = krl; subR[11] = krr;
  545. /* rotation left shift 15+30+15bit */
  546. ROLDQ(kll, klr, krl, krr, w0, w1, 15);
  547. /* k10 */
  548. subL[13] = krl; subR[13] = krr;
  549. /* rotation left shift 15+30+15+17 bit */
  550. ROLDQ(kll, klr, krl, krr, w0, w1, 17);
  551. /* kl3 */
  552. subL[16] = kll; subR[16] = klr;
  553. /* kl4 */
  554. subL[17] = krl; subR[17] = krr;
  555. /* rotation left shift 15+30+15+17+17 bit */
  556. ROLDQ(kll, klr, krl, krr, w0, w1, 17);
  557. /* k13 */
  558. subL[18] = kll; subR[18] = klr;
  559. /* k14 */
  560. subL[19] = krl; subR[19] = krr;
  561. /* rotation left shift 15+30+15+17+17+17 bit */
  562. ROLDQ(kll, klr, krl, krr, w0, w1, 17);
  563. /* k17 */
  564. subL[22] = kll; subR[22] = klr;
  565. /* k18 */
  566. subL[23] = krl; subR[23] = krr;
  567. /* generate KA */
  568. kll = subL[0]; klr = subR[0];
  569. krl = subL[1]; krr = subR[1];
  570. CAMELLIA_F(kll, klr,
  571. CAMELLIA_SIGMA1L, CAMELLIA_SIGMA1R,
  572. w0, w1, il, ir, t0, t1);
  573. krl ^= w0; krr ^= w1;
  574. CAMELLIA_F(krl, krr,
  575. CAMELLIA_SIGMA2L, CAMELLIA_SIGMA2R,
  576. kll, klr, il, ir, t0, t1);
  577. /* current status == (kll, klr, w0, w1) */
  578. CAMELLIA_F(kll, klr,
  579. CAMELLIA_SIGMA3L, CAMELLIA_SIGMA3R,
  580. krl, krr, il, ir, t0, t1);
  581. krl ^= w0; krr ^= w1;
  582. CAMELLIA_F(krl, krr,
  583. CAMELLIA_SIGMA4L, CAMELLIA_SIGMA4R,
  584. w0, w1, il, ir, t0, t1);
  585. kll ^= w0; klr ^= w1;
  586. /* generate KA dependent subkeys */
  587. /* k1, k2 */
  588. subL[2] = kll; subR[2] = klr;
  589. subL[3] = krl; subR[3] = krr;
  590. ROLDQ(kll, klr, krl, krr, w0, w1, 15);
  591. /* k5,k6 */
  592. subL[6] = kll; subR[6] = klr;
  593. subL[7] = krl; subR[7] = krr;
  594. ROLDQ(kll, klr, krl, krr, w0, w1, 15);
  595. /* kl1, kl2 */
  596. subL[8] = kll; subR[8] = klr;
  597. subL[9] = krl; subR[9] = krr;
  598. ROLDQ(kll, klr, krl, krr, w0, w1, 15);
  599. /* k9 */
  600. subL[12] = kll; subR[12] = klr;
  601. ROLDQ(kll, klr, krl, krr, w0, w1, 15);
  602. /* k11, k12 */
  603. subL[14] = kll; subR[14] = klr;
  604. subL[15] = krl; subR[15] = krr;
  605. ROLDQo32(kll, klr, krl, krr, w0, w1, 34);
  606. /* k15, k16 */
  607. subL[20] = kll; subR[20] = klr;
  608. subL[21] = krl; subR[21] = krr;
  609. ROLDQ(kll, klr, krl, krr, w0, w1, 17);
  610. /* kw3, kw4 */
  611. subL[24] = kll; subR[24] = klr;
  612. subL[25] = krl; subR[25] = krr;
  613. camellia_setup_tail(subkey, subL, subR, 24);
  614. }
  615. static void camellia_setup256(const unsigned char *key, u32 *subkey)
  616. {
  617. u32 kll, klr, krl, krr; /* left half of key */
  618. u32 krll, krlr, krrl, krrr; /* right half of key */
  619. u32 il, ir, t0, t1, w0, w1; /* temporary variables */
  620. u32 subL[34];
  621. u32 subR[34];
  622. /**
  623. * key = (kll || klr || krl || krr || krll || krlr || krrl || krrr)
  624. * (|| is concatenation)
  625. */
  626. kll = get_unaligned_be32(key);
  627. klr = get_unaligned_be32(key + 4);
  628. krl = get_unaligned_be32(key + 8);
  629. krr = get_unaligned_be32(key + 12);
  630. krll = get_unaligned_be32(key + 16);
  631. krlr = get_unaligned_be32(key + 20);
  632. krrl = get_unaligned_be32(key + 24);
  633. krrr = get_unaligned_be32(key + 28);
  634. /* generate KL dependent subkeys */
  635. /* kw1 */
  636. subL[0] = kll; subR[0] = klr;
  637. /* kw2 */
  638. subL[1] = krl; subR[1] = krr;
  639. ROLDQo32(kll, klr, krl, krr, w0, w1, 45);
  640. /* k9 */
  641. subL[12] = kll; subR[12] = klr;
  642. /* k10 */
  643. subL[13] = krl; subR[13] = krr;
  644. ROLDQ(kll, klr, krl, krr, w0, w1, 15);
  645. /* kl3 */
  646. subL[16] = kll; subR[16] = klr;
  647. /* kl4 */
  648. subL[17] = krl; subR[17] = krr;
  649. ROLDQ(kll, klr, krl, krr, w0, w1, 17);
  650. /* k17 */
  651. subL[22] = kll; subR[22] = klr;
  652. /* k18 */
  653. subL[23] = krl; subR[23] = krr;
  654. ROLDQo32(kll, klr, krl, krr, w0, w1, 34);
  655. /* k23 */
  656. subL[30] = kll; subR[30] = klr;
  657. /* k24 */
  658. subL[31] = krl; subR[31] = krr;
  659. /* generate KR dependent subkeys */
  660. ROLDQ(krll, krlr, krrl, krrr, w0, w1, 15);
  661. /* k3 */
  662. subL[4] = krll; subR[4] = krlr;
  663. /* k4 */
  664. subL[5] = krrl; subR[5] = krrr;
  665. ROLDQ(krll, krlr, krrl, krrr, w0, w1, 15);
  666. /* kl1 */
  667. subL[8] = krll; subR[8] = krlr;
  668. /* kl2 */
  669. subL[9] = krrl; subR[9] = krrr;
  670. ROLDQ(krll, krlr, krrl, krrr, w0, w1, 30);
  671. /* k13 */
  672. subL[18] = krll; subR[18] = krlr;
  673. /* k14 */
  674. subL[19] = krrl; subR[19] = krrr;
  675. ROLDQo32(krll, krlr, krrl, krrr, w0, w1, 34);
  676. /* k19 */
  677. subL[26] = krll; subR[26] = krlr;
  678. /* k20 */
  679. subL[27] = krrl; subR[27] = krrr;
  680. ROLDQo32(krll, krlr, krrl, krrr, w0, w1, 34);
  681. /* generate KA */
  682. kll = subL[0] ^ krll; klr = subR[0] ^ krlr;
  683. krl = subL[1] ^ krrl; krr = subR[1] ^ krrr;
  684. CAMELLIA_F(kll, klr,
  685. CAMELLIA_SIGMA1L, CAMELLIA_SIGMA1R,
  686. w0, w1, il, ir, t0, t1);
  687. krl ^= w0; krr ^= w1;
  688. CAMELLIA_F(krl, krr,
  689. CAMELLIA_SIGMA2L, CAMELLIA_SIGMA2R,
  690. kll, klr, il, ir, t0, t1);
  691. kll ^= krll; klr ^= krlr;
  692. CAMELLIA_F(kll, klr,
  693. CAMELLIA_SIGMA3L, CAMELLIA_SIGMA3R,
  694. krl, krr, il, ir, t0, t1);
  695. krl ^= w0 ^ krrl; krr ^= w1 ^ krrr;
  696. CAMELLIA_F(krl, krr,
  697. CAMELLIA_SIGMA4L, CAMELLIA_SIGMA4R,
  698. w0, w1, il, ir, t0, t1);
  699. kll ^= w0; klr ^= w1;
  700. /* generate KB */
  701. krll ^= kll; krlr ^= klr;
  702. krrl ^= krl; krrr ^= krr;
  703. CAMELLIA_F(krll, krlr,
  704. CAMELLIA_SIGMA5L, CAMELLIA_SIGMA5R,
  705. w0, w1, il, ir, t0, t1);
  706. krrl ^= w0; krrr ^= w1;
  707. CAMELLIA_F(krrl, krrr,
  708. CAMELLIA_SIGMA6L, CAMELLIA_SIGMA6R,
  709. w0, w1, il, ir, t0, t1);
  710. krll ^= w0; krlr ^= w1;
  711. /* generate KA dependent subkeys */
  712. ROLDQ(kll, klr, krl, krr, w0, w1, 15);
  713. /* k5 */
  714. subL[6] = kll; subR[6] = klr;
  715. /* k6 */
  716. subL[7] = krl; subR[7] = krr;
  717. ROLDQ(kll, klr, krl, krr, w0, w1, 30);
  718. /* k11 */
  719. subL[14] = kll; subR[14] = klr;
  720. /* k12 */
  721. subL[15] = krl; subR[15] = krr;
  722. /* rotation left shift 32bit */
  723. /* kl5 */
  724. subL[24] = klr; subR[24] = krl;
  725. /* kl6 */
  726. subL[25] = krr; subR[25] = kll;
  727. /* rotation left shift 49 from k11,k12 -> k21,k22 */
  728. ROLDQo32(kll, klr, krl, krr, w0, w1, 49);
  729. /* k21 */
  730. subL[28] = kll; subR[28] = klr;
  731. /* k22 */
  732. subL[29] = krl; subR[29] = krr;
  733. /* generate KB dependent subkeys */
  734. /* k1 */
  735. subL[2] = krll; subR[2] = krlr;
  736. /* k2 */
  737. subL[3] = krrl; subR[3] = krrr;
  738. ROLDQ(krll, krlr, krrl, krrr, w0, w1, 30);
  739. /* k7 */
  740. subL[10] = krll; subR[10] = krlr;
  741. /* k8 */
  742. subL[11] = krrl; subR[11] = krrr;
  743. ROLDQ(krll, krlr, krrl, krrr, w0, w1, 30);
  744. /* k15 */
  745. subL[20] = krll; subR[20] = krlr;
  746. /* k16 */
  747. subL[21] = krrl; subR[21] = krrr;
  748. ROLDQo32(krll, krlr, krrl, krrr, w0, w1, 51);
  749. /* kw3 */
  750. subL[32] = krll; subR[32] = krlr;
  751. /* kw4 */
  752. subL[33] = krrl; subR[33] = krrr;
  753. camellia_setup_tail(subkey, subL, subR, 32);
  754. }
  755. static void camellia_setup192(const unsigned char *key, u32 *subkey)
  756. {
  757. unsigned char kk[32];
  758. u32 krll, krlr, krrl, krrr;
  759. memcpy(kk, key, 24);
  760. memcpy((unsigned char *)&krll, key+16, 4);
  761. memcpy((unsigned char *)&krlr, key+20, 4);
  762. krrl = ~krll;
  763. krrr = ~krlr;
  764. memcpy(kk+24, (unsigned char *)&krrl, 4);
  765. memcpy(kk+28, (unsigned char *)&krrr, 4);
  766. camellia_setup256(kk, subkey);
  767. }
  768. /*
  769. * Encrypt/decrypt
  770. */
  771. #define CAMELLIA_FLS(ll, lr, rl, rr, kll, klr, krl, krr, t0, t1, t2, t3) ({ \
  772. t0 = kll; \
  773. t2 = krr; \
  774. t0 &= ll; \
  775. t2 |= rr; \
  776. rl ^= t2; \
  777. lr ^= rol32(t0, 1); \
  778. t3 = krl; \
  779. t1 = klr; \
  780. t3 &= rl; \
  781. t1 |= lr; \
  782. ll ^= t1; \
  783. rr ^= rol32(t3, 1); \
  784. })
  785. #define CAMELLIA_ROUNDSM(xl, xr, kl, kr, yl, yr, il, ir) ({ \
  786. yl ^= kl; \
  787. yr ^= kr; \
  788. ir = camellia_sp1110[(u8)xr]; \
  789. il = camellia_sp1110[(u8)(xl >> 24)]; \
  790. ir ^= camellia_sp0222[(u8)(xr >> 24)]; \
  791. il ^= camellia_sp0222[(u8)(xl >> 16)]; \
  792. ir ^= camellia_sp3033[(u8)(xr >> 16)]; \
  793. il ^= camellia_sp3033[(u8)(xl >> 8)]; \
  794. ir ^= camellia_sp4404[(u8)(xr >> 8)]; \
  795. il ^= camellia_sp4404[(u8)xl]; \
  796. ir ^= il; \
  797. yl ^= ir; \
  798. yr ^= ror32(il, 8) ^ ir; \
  799. })
  800. /* max = 24: 128bit encrypt, max = 32: 256bit encrypt */
  801. static void camellia_do_encrypt(const u32 *subkey, u32 *io, unsigned max)
  802. {
  803. u32 il, ir, t0, t1; /* temporary variables */
  804. /* pre whitening but absorb kw2 */
  805. io[0] ^= SUBKEY_L(0);
  806. io[1] ^= SUBKEY_R(0);
  807. /* main iteration */
  808. #define ROUNDS(i) ({ \
  809. CAMELLIA_ROUNDSM(io[0], io[1], \
  810. SUBKEY_L(i + 2), SUBKEY_R(i + 2), \
  811. io[2], io[3], il, ir); \
  812. CAMELLIA_ROUNDSM(io[2], io[3], \
  813. SUBKEY_L(i + 3), SUBKEY_R(i + 3), \
  814. io[0], io[1], il, ir); \
  815. CAMELLIA_ROUNDSM(io[0], io[1], \
  816. SUBKEY_L(i + 4), SUBKEY_R(i + 4), \
  817. io[2], io[3], il, ir); \
  818. CAMELLIA_ROUNDSM(io[2], io[3], \
  819. SUBKEY_L(i + 5), SUBKEY_R(i + 5), \
  820. io[0], io[1], il, ir); \
  821. CAMELLIA_ROUNDSM(io[0], io[1], \
  822. SUBKEY_L(i + 6), SUBKEY_R(i + 6), \
  823. io[2], io[3], il, ir); \
  824. CAMELLIA_ROUNDSM(io[2], io[3], \
  825. SUBKEY_L(i + 7), SUBKEY_R(i + 7), \
  826. io[0], io[1], il, ir); \
  827. })
  828. #define FLS(i) ({ \
  829. CAMELLIA_FLS(io[0], io[1], io[2], io[3], \
  830. SUBKEY_L(i + 0), SUBKEY_R(i + 0), \
  831. SUBKEY_L(i + 1), SUBKEY_R(i + 1), \
  832. t0, t1, il, ir); \
  833. })
  834. ROUNDS(0);
  835. FLS(8);
  836. ROUNDS(8);
  837. FLS(16);
  838. ROUNDS(16);
  839. if (max == 32) {
  840. FLS(24);
  841. ROUNDS(24);
  842. }
  843. #undef ROUNDS
  844. #undef FLS
  845. /* post whitening but kw4 */
  846. io[2] ^= SUBKEY_L(max);
  847. io[3] ^= SUBKEY_R(max);
  848. /* NB: io[0],[1] should be swapped with [2],[3] by caller! */
  849. }
  850. static void camellia_do_decrypt(const u32 *subkey, u32 *io, unsigned i)
  851. {
  852. u32 il, ir, t0, t1; /* temporary variables */
  853. /* pre whitening but absorb kw2 */
  854. io[0] ^= SUBKEY_L(i);
  855. io[1] ^= SUBKEY_R(i);
  856. /* main iteration */
  857. #define ROUNDS(i) ({ \
  858. CAMELLIA_ROUNDSM(io[0], io[1], \
  859. SUBKEY_L(i + 7), SUBKEY_R(i + 7), \
  860. io[2], io[3], il, ir); \
  861. CAMELLIA_ROUNDSM(io[2], io[3], \
  862. SUBKEY_L(i + 6), SUBKEY_R(i + 6), \
  863. io[0], io[1], il, ir); \
  864. CAMELLIA_ROUNDSM(io[0], io[1], \
  865. SUBKEY_L(i + 5), SUBKEY_R(i + 5), \
  866. io[2], io[3], il, ir); \
  867. CAMELLIA_ROUNDSM(io[2], io[3], \
  868. SUBKEY_L(i + 4), SUBKEY_R(i + 4), \
  869. io[0], io[1], il, ir); \
  870. CAMELLIA_ROUNDSM(io[0], io[1], \
  871. SUBKEY_L(i + 3), SUBKEY_R(i + 3), \
  872. io[2], io[3], il, ir); \
  873. CAMELLIA_ROUNDSM(io[2], io[3], \
  874. SUBKEY_L(i + 2), SUBKEY_R(i + 2), \
  875. io[0], io[1], il, ir); \
  876. })
  877. #define FLS(i) ({ \
  878. CAMELLIA_FLS(io[0], io[1], io[2], io[3], \
  879. SUBKEY_L(i + 1), SUBKEY_R(i + 1), \
  880. SUBKEY_L(i + 0), SUBKEY_R(i + 0), \
  881. t0, t1, il, ir); \
  882. })
  883. if (i == 32) {
  884. ROUNDS(24);
  885. FLS(24);
  886. }
  887. ROUNDS(16);
  888. FLS(16);
  889. ROUNDS(8);
  890. FLS(8);
  891. ROUNDS(0);
  892. #undef ROUNDS
  893. #undef FLS
  894. /* post whitening but kw4 */
  895. io[2] ^= SUBKEY_L(0);
  896. io[3] ^= SUBKEY_R(0);
  897. /* NB: 0,1 should be swapped with 2,3 by caller! */
  898. }
  899. struct camellia_ctx {
  900. int key_length;
  901. u32 key_table[CAMELLIA_TABLE_BYTE_LEN / sizeof(u32)];
  902. };
  903. static int
  904. camellia_set_key(struct crypto_tfm *tfm, const u8 *in_key,
  905. unsigned int key_len)
  906. {
  907. struct camellia_ctx *cctx = crypto_tfm_ctx(tfm);
  908. const unsigned char *key = (const unsigned char *)in_key;
  909. if (key_len != 16 && key_len != 24 && key_len != 32)
  910. return -EINVAL;
  911. cctx->key_length = key_len;
  912. switch (key_len) {
  913. case 16:
  914. camellia_setup128(key, cctx->key_table);
  915. break;
  916. case 24:
  917. camellia_setup192(key, cctx->key_table);
  918. break;
  919. case 32:
  920. camellia_setup256(key, cctx->key_table);
  921. break;
  922. }
  923. return 0;
  924. }
  925. static void camellia_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
  926. {
  927. const struct camellia_ctx *cctx = crypto_tfm_ctx(tfm);
  928. unsigned int max;
  929. u32 tmp[4];
  930. tmp[0] = get_unaligned_be32(in);
  931. tmp[1] = get_unaligned_be32(in + 4);
  932. tmp[2] = get_unaligned_be32(in + 8);
  933. tmp[3] = get_unaligned_be32(in + 12);
  934. if (cctx->key_length == 16)
  935. max = 24;
  936. else
  937. max = 32; /* for key lengths of 24 and 32 */
  938. camellia_do_encrypt(cctx->key_table, tmp, max);
  939. /* do_encrypt returns 0,1 swapped with 2,3 */
  940. put_unaligned_be32(tmp[2], out);
  941. put_unaligned_be32(tmp[3], out + 4);
  942. put_unaligned_be32(tmp[0], out + 8);
  943. put_unaligned_be32(tmp[1], out + 12);
  944. }
  945. static void camellia_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
  946. {
  947. const struct camellia_ctx *cctx = crypto_tfm_ctx(tfm);
  948. unsigned int max;
  949. u32 tmp[4];
  950. tmp[0] = get_unaligned_be32(in);
  951. tmp[1] = get_unaligned_be32(in + 4);
  952. tmp[2] = get_unaligned_be32(in + 8);
  953. tmp[3] = get_unaligned_be32(in + 12);
  954. if (cctx->key_length == 16)
  955. max = 24;
  956. else
  957. max = 32; /* for key lengths of 24 and 32 */
  958. camellia_do_decrypt(cctx->key_table, tmp, max);
  959. /* do_decrypt returns 0,1 swapped with 2,3 */
  960. put_unaligned_be32(tmp[2], out);
  961. put_unaligned_be32(tmp[3], out + 4);
  962. put_unaligned_be32(tmp[0], out + 8);
  963. put_unaligned_be32(tmp[1], out + 12);
  964. }
  965. static struct crypto_alg camellia_alg = {
  966. .cra_name = "camellia",
  967. .cra_driver_name = "camellia-generic",
  968. .cra_priority = 100,
  969. .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
  970. .cra_blocksize = CAMELLIA_BLOCK_SIZE,
  971. .cra_ctxsize = sizeof(struct camellia_ctx),
  972. .cra_module = THIS_MODULE,
  973. .cra_u = {
  974. .cipher = {
  975. .cia_min_keysize = CAMELLIA_MIN_KEY_SIZE,
  976. .cia_max_keysize = CAMELLIA_MAX_KEY_SIZE,
  977. .cia_setkey = camellia_set_key,
  978. .cia_encrypt = camellia_encrypt,
  979. .cia_decrypt = camellia_decrypt
  980. }
  981. }
  982. };
  983. static int __init camellia_init(void)
  984. {
  985. return crypto_register_alg(&camellia_alg);
  986. }
  987. static void __exit camellia_fini(void)
  988. {
  989. crypto_unregister_alg(&camellia_alg);
  990. }
  991. subsys_initcall(camellia_init);
  992. module_exit(camellia_fini);
  993. MODULE_DESCRIPTION("Camellia Cipher Algorithm");
  994. MODULE_LICENSE("GPL");
  995. MODULE_ALIAS_CRYPTO("camellia");
  996. MODULE_ALIAS_CRYPTO("camellia-generic");