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aria.c 44 KB

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  1. /*
  2. * Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
  3. * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
  4. *
  5. * Licensed under the OpenSSL license (the "License"). You may not use
  6. * this file except in compliance with the License. You can obtain a copy
  7. * in the file LICENSE in the source distribution or at
  8. * https://www.openssl.org/source/license.html
  9. */
  10. /*
  11. * Copyright (C) 2017 National Security Research Institute. All Rights Reserved.
  12. *
  13. * Information for ARIA
  14. * http://210.104.33.10/ARIA/index-e.html (English)
  15. * http://seed.kisa.or.kr/ (Korean)
  16. *
  17. * Public domain version is distributed above.
  18. */
  19. #include <openssl/e_os2.h>
  20. #include "internal/aria.h"
  21. #include <assert.h>
  22. #include <string.h>
  23. #ifndef OPENSSL_SMALL_FOOTPRINT
  24. /* Begin macro */
  25. /* rotation */
  26. #define rotl32(v, r) (((uint32_t)(v) << (r)) | ((uint32_t)(v) >> (32 - r)))
  27. #define rotr32(v, r) (((uint32_t)(v) >> (r)) | ((uint32_t)(v) << (32 - r)))
  28. #define bswap32(v) \
  29. (((v) << 24) ^ ((v) >> 24) ^ \
  30. (((v) & 0x0000ff00) << 8) ^ (((v) & 0x00ff0000) >> 8))
  31. #define GET_U8_BE(X, Y) ((uint8_t)((X) >> ((3 - Y) * 8)))
  32. #define GET_U32_BE(X, Y) ( \
  33. ((uint32_t)((const uint8_t *)(X))[Y * 4 ] << 24) ^ \
  34. ((uint32_t)((const uint8_t *)(X))[Y * 4 + 1] << 16) ^ \
  35. ((uint32_t)((const uint8_t *)(X))[Y * 4 + 2] << 8) ^ \
  36. ((uint32_t)((const uint8_t *)(X))[Y * 4 + 3] ) )
  37. #define PUT_U32_BE(DEST, IDX, VAL) \
  38. do { \
  39. ((uint8_t *)(DEST))[IDX * 4 ] = GET_U8_BE(VAL, 0); \
  40. ((uint8_t *)(DEST))[IDX * 4 + 1] = GET_U8_BE(VAL, 1); \
  41. ((uint8_t *)(DEST))[IDX * 4 + 2] = GET_U8_BE(VAL, 2); \
  42. ((uint8_t *)(DEST))[IDX * 4 + 3] = GET_U8_BE(VAL, 3); \
  43. } while(0)
  44. #define MAKE_U32(V0, V1, V2, V3) ( \
  45. ((uint32_t)((uint8_t)(V0)) << 24) | \
  46. ((uint32_t)((uint8_t)(V1)) << 16) | \
  47. ((uint32_t)((uint8_t)(V2)) << 8) | \
  48. ((uint32_t)((uint8_t)(V3)) ) )
  49. /* End Macro*/
  50. /* Key Constant
  51. * 128bit : 0, 1, 2
  52. * 192bit : 1, 2, 3(0)
  53. * 256bit : 2, 3(0), 4(1)
  54. */
  55. static const uint32_t Key_RC[5][4] = {
  56. { 0x517cc1b7, 0x27220a94, 0xfe13abe8, 0xfa9a6ee0 },
  57. { 0x6db14acc, 0x9e21c820, 0xff28b1d5, 0xef5de2b0 },
  58. { 0xdb92371d, 0x2126e970, 0x03249775, 0x04e8c90e },
  59. { 0x517cc1b7, 0x27220a94, 0xfe13abe8, 0xfa9a6ee0 },
  60. { 0x6db14acc, 0x9e21c820, 0xff28b1d5, 0xef5de2b0 }
  61. };
  62. /* 32bit expanded s-box */
  63. static const uint32_t S1[256] = {
  64. 0x00636363, 0x007c7c7c, 0x00777777, 0x007b7b7b,
  65. 0x00f2f2f2, 0x006b6b6b, 0x006f6f6f, 0x00c5c5c5,
  66. 0x00303030, 0x00010101, 0x00676767, 0x002b2b2b,
  67. 0x00fefefe, 0x00d7d7d7, 0x00ababab, 0x00767676,
  68. 0x00cacaca, 0x00828282, 0x00c9c9c9, 0x007d7d7d,
  69. 0x00fafafa, 0x00595959, 0x00474747, 0x00f0f0f0,
  70. 0x00adadad, 0x00d4d4d4, 0x00a2a2a2, 0x00afafaf,
  71. 0x009c9c9c, 0x00a4a4a4, 0x00727272, 0x00c0c0c0,
  72. 0x00b7b7b7, 0x00fdfdfd, 0x00939393, 0x00262626,
  73. 0x00363636, 0x003f3f3f, 0x00f7f7f7, 0x00cccccc,
  74. 0x00343434, 0x00a5a5a5, 0x00e5e5e5, 0x00f1f1f1,
  75. 0x00717171, 0x00d8d8d8, 0x00313131, 0x00151515,
  76. 0x00040404, 0x00c7c7c7, 0x00232323, 0x00c3c3c3,
  77. 0x00181818, 0x00969696, 0x00050505, 0x009a9a9a,
  78. 0x00070707, 0x00121212, 0x00808080, 0x00e2e2e2,
  79. 0x00ebebeb, 0x00272727, 0x00b2b2b2, 0x00757575,
  80. 0x00090909, 0x00838383, 0x002c2c2c, 0x001a1a1a,
  81. 0x001b1b1b, 0x006e6e6e, 0x005a5a5a, 0x00a0a0a0,
  82. 0x00525252, 0x003b3b3b, 0x00d6d6d6, 0x00b3b3b3,
  83. 0x00292929, 0x00e3e3e3, 0x002f2f2f, 0x00848484,
  84. 0x00535353, 0x00d1d1d1, 0x00000000, 0x00ededed,
  85. 0x00202020, 0x00fcfcfc, 0x00b1b1b1, 0x005b5b5b,
  86. 0x006a6a6a, 0x00cbcbcb, 0x00bebebe, 0x00393939,
  87. 0x004a4a4a, 0x004c4c4c, 0x00585858, 0x00cfcfcf,
  88. 0x00d0d0d0, 0x00efefef, 0x00aaaaaa, 0x00fbfbfb,
  89. 0x00434343, 0x004d4d4d, 0x00333333, 0x00858585,
  90. 0x00454545, 0x00f9f9f9, 0x00020202, 0x007f7f7f,
  91. 0x00505050, 0x003c3c3c, 0x009f9f9f, 0x00a8a8a8,
  92. 0x00515151, 0x00a3a3a3, 0x00404040, 0x008f8f8f,
  93. 0x00929292, 0x009d9d9d, 0x00383838, 0x00f5f5f5,
  94. 0x00bcbcbc, 0x00b6b6b6, 0x00dadada, 0x00212121,
  95. 0x00101010, 0x00ffffff, 0x00f3f3f3, 0x00d2d2d2,
  96. 0x00cdcdcd, 0x000c0c0c, 0x00131313, 0x00ececec,
  97. 0x005f5f5f, 0x00979797, 0x00444444, 0x00171717,
  98. 0x00c4c4c4, 0x00a7a7a7, 0x007e7e7e, 0x003d3d3d,
  99. 0x00646464, 0x005d5d5d, 0x00191919, 0x00737373,
  100. 0x00606060, 0x00818181, 0x004f4f4f, 0x00dcdcdc,
  101. 0x00222222, 0x002a2a2a, 0x00909090, 0x00888888,
  102. 0x00464646, 0x00eeeeee, 0x00b8b8b8, 0x00141414,
  103. 0x00dedede, 0x005e5e5e, 0x000b0b0b, 0x00dbdbdb,
  104. 0x00e0e0e0, 0x00323232, 0x003a3a3a, 0x000a0a0a,
  105. 0x00494949, 0x00060606, 0x00242424, 0x005c5c5c,
  106. 0x00c2c2c2, 0x00d3d3d3, 0x00acacac, 0x00626262,
  107. 0x00919191, 0x00959595, 0x00e4e4e4, 0x00797979,
  108. 0x00e7e7e7, 0x00c8c8c8, 0x00373737, 0x006d6d6d,
  109. 0x008d8d8d, 0x00d5d5d5, 0x004e4e4e, 0x00a9a9a9,
  110. 0x006c6c6c, 0x00565656, 0x00f4f4f4, 0x00eaeaea,
  111. 0x00656565, 0x007a7a7a, 0x00aeaeae, 0x00080808,
  112. 0x00bababa, 0x00787878, 0x00252525, 0x002e2e2e,
  113. 0x001c1c1c, 0x00a6a6a6, 0x00b4b4b4, 0x00c6c6c6,
  114. 0x00e8e8e8, 0x00dddddd, 0x00747474, 0x001f1f1f,
  115. 0x004b4b4b, 0x00bdbdbd, 0x008b8b8b, 0x008a8a8a,
  116. 0x00707070, 0x003e3e3e, 0x00b5b5b5, 0x00666666,
  117. 0x00484848, 0x00030303, 0x00f6f6f6, 0x000e0e0e,
  118. 0x00616161, 0x00353535, 0x00575757, 0x00b9b9b9,
  119. 0x00868686, 0x00c1c1c1, 0x001d1d1d, 0x009e9e9e,
  120. 0x00e1e1e1, 0x00f8f8f8, 0x00989898, 0x00111111,
  121. 0x00696969, 0x00d9d9d9, 0x008e8e8e, 0x00949494,
  122. 0x009b9b9b, 0x001e1e1e, 0x00878787, 0x00e9e9e9,
  123. 0x00cecece, 0x00555555, 0x00282828, 0x00dfdfdf,
  124. 0x008c8c8c, 0x00a1a1a1, 0x00898989, 0x000d0d0d,
  125. 0x00bfbfbf, 0x00e6e6e6, 0x00424242, 0x00686868,
  126. 0x00414141, 0x00999999, 0x002d2d2d, 0x000f0f0f,
  127. 0x00b0b0b0, 0x00545454, 0x00bbbbbb, 0x00161616
  128. };
  129. static const uint32_t S2[256] = {
  130. 0xe200e2e2, 0x4e004e4e, 0x54005454, 0xfc00fcfc,
  131. 0x94009494, 0xc200c2c2, 0x4a004a4a, 0xcc00cccc,
  132. 0x62006262, 0x0d000d0d, 0x6a006a6a, 0x46004646,
  133. 0x3c003c3c, 0x4d004d4d, 0x8b008b8b, 0xd100d1d1,
  134. 0x5e005e5e, 0xfa00fafa, 0x64006464, 0xcb00cbcb,
  135. 0xb400b4b4, 0x97009797, 0xbe00bebe, 0x2b002b2b,
  136. 0xbc00bcbc, 0x77007777, 0x2e002e2e, 0x03000303,
  137. 0xd300d3d3, 0x19001919, 0x59005959, 0xc100c1c1,
  138. 0x1d001d1d, 0x06000606, 0x41004141, 0x6b006b6b,
  139. 0x55005555, 0xf000f0f0, 0x99009999, 0x69006969,
  140. 0xea00eaea, 0x9c009c9c, 0x18001818, 0xae00aeae,
  141. 0x63006363, 0xdf00dfdf, 0xe700e7e7, 0xbb00bbbb,
  142. 0x00000000, 0x73007373, 0x66006666, 0xfb00fbfb,
  143. 0x96009696, 0x4c004c4c, 0x85008585, 0xe400e4e4,
  144. 0x3a003a3a, 0x09000909, 0x45004545, 0xaa00aaaa,
  145. 0x0f000f0f, 0xee00eeee, 0x10001010, 0xeb00ebeb,
  146. 0x2d002d2d, 0x7f007f7f, 0xf400f4f4, 0x29002929,
  147. 0xac00acac, 0xcf00cfcf, 0xad00adad, 0x91009191,
  148. 0x8d008d8d, 0x78007878, 0xc800c8c8, 0x95009595,
  149. 0xf900f9f9, 0x2f002f2f, 0xce00cece, 0xcd00cdcd,
  150. 0x08000808, 0x7a007a7a, 0x88008888, 0x38003838,
  151. 0x5c005c5c, 0x83008383, 0x2a002a2a, 0x28002828,
  152. 0x47004747, 0xdb00dbdb, 0xb800b8b8, 0xc700c7c7,
  153. 0x93009393, 0xa400a4a4, 0x12001212, 0x53005353,
  154. 0xff00ffff, 0x87008787, 0x0e000e0e, 0x31003131,
  155. 0x36003636, 0x21002121, 0x58005858, 0x48004848,
  156. 0x01000101, 0x8e008e8e, 0x37003737, 0x74007474,
  157. 0x32003232, 0xca00caca, 0xe900e9e9, 0xb100b1b1,
  158. 0xb700b7b7, 0xab00abab, 0x0c000c0c, 0xd700d7d7,
  159. 0xc400c4c4, 0x56005656, 0x42004242, 0x26002626,
  160. 0x07000707, 0x98009898, 0x60006060, 0xd900d9d9,
  161. 0xb600b6b6, 0xb900b9b9, 0x11001111, 0x40004040,
  162. 0xec00ecec, 0x20002020, 0x8c008c8c, 0xbd00bdbd,
  163. 0xa000a0a0, 0xc900c9c9, 0x84008484, 0x04000404,
  164. 0x49004949, 0x23002323, 0xf100f1f1, 0x4f004f4f,
  165. 0x50005050, 0x1f001f1f, 0x13001313, 0xdc00dcdc,
  166. 0xd800d8d8, 0xc000c0c0, 0x9e009e9e, 0x57005757,
  167. 0xe300e3e3, 0xc300c3c3, 0x7b007b7b, 0x65006565,
  168. 0x3b003b3b, 0x02000202, 0x8f008f8f, 0x3e003e3e,
  169. 0xe800e8e8, 0x25002525, 0x92009292, 0xe500e5e5,
  170. 0x15001515, 0xdd00dddd, 0xfd00fdfd, 0x17001717,
  171. 0xa900a9a9, 0xbf00bfbf, 0xd400d4d4, 0x9a009a9a,
  172. 0x7e007e7e, 0xc500c5c5, 0x39003939, 0x67006767,
  173. 0xfe00fefe, 0x76007676, 0x9d009d9d, 0x43004343,
  174. 0xa700a7a7, 0xe100e1e1, 0xd000d0d0, 0xf500f5f5,
  175. 0x68006868, 0xf200f2f2, 0x1b001b1b, 0x34003434,
  176. 0x70007070, 0x05000505, 0xa300a3a3, 0x8a008a8a,
  177. 0xd500d5d5, 0x79007979, 0x86008686, 0xa800a8a8,
  178. 0x30003030, 0xc600c6c6, 0x51005151, 0x4b004b4b,
  179. 0x1e001e1e, 0xa600a6a6, 0x27002727, 0xf600f6f6,
  180. 0x35003535, 0xd200d2d2, 0x6e006e6e, 0x24002424,
  181. 0x16001616, 0x82008282, 0x5f005f5f, 0xda00dada,
  182. 0xe600e6e6, 0x75007575, 0xa200a2a2, 0xef00efef,
  183. 0x2c002c2c, 0xb200b2b2, 0x1c001c1c, 0x9f009f9f,
  184. 0x5d005d5d, 0x6f006f6f, 0x80008080, 0x0a000a0a,
  185. 0x72007272, 0x44004444, 0x9b009b9b, 0x6c006c6c,
  186. 0x90009090, 0x0b000b0b, 0x5b005b5b, 0x33003333,
  187. 0x7d007d7d, 0x5a005a5a, 0x52005252, 0xf300f3f3,
  188. 0x61006161, 0xa100a1a1, 0xf700f7f7, 0xb000b0b0,
  189. 0xd600d6d6, 0x3f003f3f, 0x7c007c7c, 0x6d006d6d,
  190. 0xed00eded, 0x14001414, 0xe000e0e0, 0xa500a5a5,
  191. 0x3d003d3d, 0x22002222, 0xb300b3b3, 0xf800f8f8,
  192. 0x89008989, 0xde00dede, 0x71007171, 0x1a001a1a,
  193. 0xaf00afaf, 0xba00baba, 0xb500b5b5, 0x81008181
  194. };
  195. static const uint32_t X1[256] = {
  196. 0x52520052, 0x09090009, 0x6a6a006a, 0xd5d500d5,
  197. 0x30300030, 0x36360036, 0xa5a500a5, 0x38380038,
  198. 0xbfbf00bf, 0x40400040, 0xa3a300a3, 0x9e9e009e,
  199. 0x81810081, 0xf3f300f3, 0xd7d700d7, 0xfbfb00fb,
  200. 0x7c7c007c, 0xe3e300e3, 0x39390039, 0x82820082,
  201. 0x9b9b009b, 0x2f2f002f, 0xffff00ff, 0x87870087,
  202. 0x34340034, 0x8e8e008e, 0x43430043, 0x44440044,
  203. 0xc4c400c4, 0xdede00de, 0xe9e900e9, 0xcbcb00cb,
  204. 0x54540054, 0x7b7b007b, 0x94940094, 0x32320032,
  205. 0xa6a600a6, 0xc2c200c2, 0x23230023, 0x3d3d003d,
  206. 0xeeee00ee, 0x4c4c004c, 0x95950095, 0x0b0b000b,
  207. 0x42420042, 0xfafa00fa, 0xc3c300c3, 0x4e4e004e,
  208. 0x08080008, 0x2e2e002e, 0xa1a100a1, 0x66660066,
  209. 0x28280028, 0xd9d900d9, 0x24240024, 0xb2b200b2,
  210. 0x76760076, 0x5b5b005b, 0xa2a200a2, 0x49490049,
  211. 0x6d6d006d, 0x8b8b008b, 0xd1d100d1, 0x25250025,
  212. 0x72720072, 0xf8f800f8, 0xf6f600f6, 0x64640064,
  213. 0x86860086, 0x68680068, 0x98980098, 0x16160016,
  214. 0xd4d400d4, 0xa4a400a4, 0x5c5c005c, 0xcccc00cc,
  215. 0x5d5d005d, 0x65650065, 0xb6b600b6, 0x92920092,
  216. 0x6c6c006c, 0x70700070, 0x48480048, 0x50500050,
  217. 0xfdfd00fd, 0xeded00ed, 0xb9b900b9, 0xdada00da,
  218. 0x5e5e005e, 0x15150015, 0x46460046, 0x57570057,
  219. 0xa7a700a7, 0x8d8d008d, 0x9d9d009d, 0x84840084,
  220. 0x90900090, 0xd8d800d8, 0xabab00ab, 0x00000000,
  221. 0x8c8c008c, 0xbcbc00bc, 0xd3d300d3, 0x0a0a000a,
  222. 0xf7f700f7, 0xe4e400e4, 0x58580058, 0x05050005,
  223. 0xb8b800b8, 0xb3b300b3, 0x45450045, 0x06060006,
  224. 0xd0d000d0, 0x2c2c002c, 0x1e1e001e, 0x8f8f008f,
  225. 0xcaca00ca, 0x3f3f003f, 0x0f0f000f, 0x02020002,
  226. 0xc1c100c1, 0xafaf00af, 0xbdbd00bd, 0x03030003,
  227. 0x01010001, 0x13130013, 0x8a8a008a, 0x6b6b006b,
  228. 0x3a3a003a, 0x91910091, 0x11110011, 0x41410041,
  229. 0x4f4f004f, 0x67670067, 0xdcdc00dc, 0xeaea00ea,
  230. 0x97970097, 0xf2f200f2, 0xcfcf00cf, 0xcece00ce,
  231. 0xf0f000f0, 0xb4b400b4, 0xe6e600e6, 0x73730073,
  232. 0x96960096, 0xacac00ac, 0x74740074, 0x22220022,
  233. 0xe7e700e7, 0xadad00ad, 0x35350035, 0x85850085,
  234. 0xe2e200e2, 0xf9f900f9, 0x37370037, 0xe8e800e8,
  235. 0x1c1c001c, 0x75750075, 0xdfdf00df, 0x6e6e006e,
  236. 0x47470047, 0xf1f100f1, 0x1a1a001a, 0x71710071,
  237. 0x1d1d001d, 0x29290029, 0xc5c500c5, 0x89890089,
  238. 0x6f6f006f, 0xb7b700b7, 0x62620062, 0x0e0e000e,
  239. 0xaaaa00aa, 0x18180018, 0xbebe00be, 0x1b1b001b,
  240. 0xfcfc00fc, 0x56560056, 0x3e3e003e, 0x4b4b004b,
  241. 0xc6c600c6, 0xd2d200d2, 0x79790079, 0x20200020,
  242. 0x9a9a009a, 0xdbdb00db, 0xc0c000c0, 0xfefe00fe,
  243. 0x78780078, 0xcdcd00cd, 0x5a5a005a, 0xf4f400f4,
  244. 0x1f1f001f, 0xdddd00dd, 0xa8a800a8, 0x33330033,
  245. 0x88880088, 0x07070007, 0xc7c700c7, 0x31310031,
  246. 0xb1b100b1, 0x12120012, 0x10100010, 0x59590059,
  247. 0x27270027, 0x80800080, 0xecec00ec, 0x5f5f005f,
  248. 0x60600060, 0x51510051, 0x7f7f007f, 0xa9a900a9,
  249. 0x19190019, 0xb5b500b5, 0x4a4a004a, 0x0d0d000d,
  250. 0x2d2d002d, 0xe5e500e5, 0x7a7a007a, 0x9f9f009f,
  251. 0x93930093, 0xc9c900c9, 0x9c9c009c, 0xefef00ef,
  252. 0xa0a000a0, 0xe0e000e0, 0x3b3b003b, 0x4d4d004d,
  253. 0xaeae00ae, 0x2a2a002a, 0xf5f500f5, 0xb0b000b0,
  254. 0xc8c800c8, 0xebeb00eb, 0xbbbb00bb, 0x3c3c003c,
  255. 0x83830083, 0x53530053, 0x99990099, 0x61610061,
  256. 0x17170017, 0x2b2b002b, 0x04040004, 0x7e7e007e,
  257. 0xbaba00ba, 0x77770077, 0xd6d600d6, 0x26260026,
  258. 0xe1e100e1, 0x69690069, 0x14140014, 0x63630063,
  259. 0x55550055, 0x21210021, 0x0c0c000c, 0x7d7d007d
  260. };
  261. static const uint32_t X2[256] = {
  262. 0x30303000, 0x68686800, 0x99999900, 0x1b1b1b00,
  263. 0x87878700, 0xb9b9b900, 0x21212100, 0x78787800,
  264. 0x50505000, 0x39393900, 0xdbdbdb00, 0xe1e1e100,
  265. 0x72727200, 0x09090900, 0x62626200, 0x3c3c3c00,
  266. 0x3e3e3e00, 0x7e7e7e00, 0x5e5e5e00, 0x8e8e8e00,
  267. 0xf1f1f100, 0xa0a0a000, 0xcccccc00, 0xa3a3a300,
  268. 0x2a2a2a00, 0x1d1d1d00, 0xfbfbfb00, 0xb6b6b600,
  269. 0xd6d6d600, 0x20202000, 0xc4c4c400, 0x8d8d8d00,
  270. 0x81818100, 0x65656500, 0xf5f5f500, 0x89898900,
  271. 0xcbcbcb00, 0x9d9d9d00, 0x77777700, 0xc6c6c600,
  272. 0x57575700, 0x43434300, 0x56565600, 0x17171700,
  273. 0xd4d4d400, 0x40404000, 0x1a1a1a00, 0x4d4d4d00,
  274. 0xc0c0c000, 0x63636300, 0x6c6c6c00, 0xe3e3e300,
  275. 0xb7b7b700, 0xc8c8c800, 0x64646400, 0x6a6a6a00,
  276. 0x53535300, 0xaaaaaa00, 0x38383800, 0x98989800,
  277. 0x0c0c0c00, 0xf4f4f400, 0x9b9b9b00, 0xededed00,
  278. 0x7f7f7f00, 0x22222200, 0x76767600, 0xafafaf00,
  279. 0xdddddd00, 0x3a3a3a00, 0x0b0b0b00, 0x58585800,
  280. 0x67676700, 0x88888800, 0x06060600, 0xc3c3c300,
  281. 0x35353500, 0x0d0d0d00, 0x01010100, 0x8b8b8b00,
  282. 0x8c8c8c00, 0xc2c2c200, 0xe6e6e600, 0x5f5f5f00,
  283. 0x02020200, 0x24242400, 0x75757500, 0x93939300,
  284. 0x66666600, 0x1e1e1e00, 0xe5e5e500, 0xe2e2e200,
  285. 0x54545400, 0xd8d8d800, 0x10101000, 0xcecece00,
  286. 0x7a7a7a00, 0xe8e8e800, 0x08080800, 0x2c2c2c00,
  287. 0x12121200, 0x97979700, 0x32323200, 0xababab00,
  288. 0xb4b4b400, 0x27272700, 0x0a0a0a00, 0x23232300,
  289. 0xdfdfdf00, 0xefefef00, 0xcacaca00, 0xd9d9d900,
  290. 0xb8b8b800, 0xfafafa00, 0xdcdcdc00, 0x31313100,
  291. 0x6b6b6b00, 0xd1d1d100, 0xadadad00, 0x19191900,
  292. 0x49494900, 0xbdbdbd00, 0x51515100, 0x96969600,
  293. 0xeeeeee00, 0xe4e4e400, 0xa8a8a800, 0x41414100,
  294. 0xdadada00, 0xffffff00, 0xcdcdcd00, 0x55555500,
  295. 0x86868600, 0x36363600, 0xbebebe00, 0x61616100,
  296. 0x52525200, 0xf8f8f800, 0xbbbbbb00, 0x0e0e0e00,
  297. 0x82828200, 0x48484800, 0x69696900, 0x9a9a9a00,
  298. 0xe0e0e000, 0x47474700, 0x9e9e9e00, 0x5c5c5c00,
  299. 0x04040400, 0x4b4b4b00, 0x34343400, 0x15151500,
  300. 0x79797900, 0x26262600, 0xa7a7a700, 0xdedede00,
  301. 0x29292900, 0xaeaeae00, 0x92929200, 0xd7d7d700,
  302. 0x84848400, 0xe9e9e900, 0xd2d2d200, 0xbababa00,
  303. 0x5d5d5d00, 0xf3f3f300, 0xc5c5c500, 0xb0b0b000,
  304. 0xbfbfbf00, 0xa4a4a400, 0x3b3b3b00, 0x71717100,
  305. 0x44444400, 0x46464600, 0x2b2b2b00, 0xfcfcfc00,
  306. 0xebebeb00, 0x6f6f6f00, 0xd5d5d500, 0xf6f6f600,
  307. 0x14141400, 0xfefefe00, 0x7c7c7c00, 0x70707000,
  308. 0x5a5a5a00, 0x7d7d7d00, 0xfdfdfd00, 0x2f2f2f00,
  309. 0x18181800, 0x83838300, 0x16161600, 0xa5a5a500,
  310. 0x91919100, 0x1f1f1f00, 0x05050500, 0x95959500,
  311. 0x74747400, 0xa9a9a900, 0xc1c1c100, 0x5b5b5b00,
  312. 0x4a4a4a00, 0x85858500, 0x6d6d6d00, 0x13131300,
  313. 0x07070700, 0x4f4f4f00, 0x4e4e4e00, 0x45454500,
  314. 0xb2b2b200, 0x0f0f0f00, 0xc9c9c900, 0x1c1c1c00,
  315. 0xa6a6a600, 0xbcbcbc00, 0xececec00, 0x73737300,
  316. 0x90909000, 0x7b7b7b00, 0xcfcfcf00, 0x59595900,
  317. 0x8f8f8f00, 0xa1a1a100, 0xf9f9f900, 0x2d2d2d00,
  318. 0xf2f2f200, 0xb1b1b100, 0x00000000, 0x94949400,
  319. 0x37373700, 0x9f9f9f00, 0xd0d0d000, 0x2e2e2e00,
  320. 0x9c9c9c00, 0x6e6e6e00, 0x28282800, 0x3f3f3f00,
  321. 0x80808000, 0xf0f0f000, 0x3d3d3d00, 0xd3d3d300,
  322. 0x25252500, 0x8a8a8a00, 0xb5b5b500, 0xe7e7e700,
  323. 0x42424200, 0xb3b3b300, 0xc7c7c700, 0xeaeaea00,
  324. 0xf7f7f700, 0x4c4c4c00, 0x11111100, 0x33333300,
  325. 0x03030300, 0xa2a2a200, 0xacacac00, 0x60606000
  326. };
  327. /* Key XOR Layer */
  328. #define ARIA_ADD_ROUND_KEY(RK, T0, T1, T2, T3) \
  329. do { \
  330. (T0) ^= (RK)->u[0]; \
  331. (T1) ^= (RK)->u[1]; \
  332. (T2) ^= (RK)->u[2]; \
  333. (T3) ^= (RK)->u[3]; \
  334. } while(0)
  335. /* S-Box Layer 1 + M */
  336. #define ARIA_SBOX_LAYER1_WITH_PRE_DIFF(T0, T1, T2, T3) \
  337. do { \
  338. (T0) = \
  339. S1[GET_U8_BE(T0, 0)] ^ \
  340. S2[GET_U8_BE(T0, 1)] ^ \
  341. X1[GET_U8_BE(T0, 2)] ^ \
  342. X2[GET_U8_BE(T0, 3)]; \
  343. (T1) = \
  344. S1[GET_U8_BE(T1, 0)] ^ \
  345. S2[GET_U8_BE(T1, 1)] ^ \
  346. X1[GET_U8_BE(T1, 2)] ^ \
  347. X2[GET_U8_BE(T1, 3)]; \
  348. (T2) = \
  349. S1[GET_U8_BE(T2, 0)] ^ \
  350. S2[GET_U8_BE(T2, 1)] ^ \
  351. X1[GET_U8_BE(T2, 2)] ^ \
  352. X2[GET_U8_BE(T2, 3)]; \
  353. (T3) = \
  354. S1[GET_U8_BE(T3, 0)] ^ \
  355. S2[GET_U8_BE(T3, 1)] ^ \
  356. X1[GET_U8_BE(T3, 2)] ^ \
  357. X2[GET_U8_BE(T3, 3)]; \
  358. } while(0)
  359. /* S-Box Layer 2 + M */
  360. #define ARIA_SBOX_LAYER2_WITH_PRE_DIFF(T0, T1, T2, T3) \
  361. do { \
  362. (T0) = \
  363. X1[GET_U8_BE(T0, 0)] ^ \
  364. X2[GET_U8_BE(T0, 1)] ^ \
  365. S1[GET_U8_BE(T0, 2)] ^ \
  366. S2[GET_U8_BE(T0, 3)]; \
  367. (T1) = \
  368. X1[GET_U8_BE(T1, 0)] ^ \
  369. X2[GET_U8_BE(T1, 1)] ^ \
  370. S1[GET_U8_BE(T1, 2)] ^ \
  371. S2[GET_U8_BE(T1, 3)]; \
  372. (T2) = \
  373. X1[GET_U8_BE(T2, 0)] ^ \
  374. X2[GET_U8_BE(T2, 1)] ^ \
  375. S1[GET_U8_BE(T2, 2)] ^ \
  376. S2[GET_U8_BE(T2, 3)]; \
  377. (T3) = \
  378. X1[GET_U8_BE(T3, 0)] ^ \
  379. X2[GET_U8_BE(T3, 1)] ^ \
  380. S1[GET_U8_BE(T3, 2)] ^ \
  381. S2[GET_U8_BE(T3, 3)]; \
  382. } while(0)
  383. /* Word-level diffusion */
  384. #define ARIA_DIFF_WORD(T0,T1,T2,T3) \
  385. do { \
  386. (T1) ^= (T2); \
  387. (T2) ^= (T3); \
  388. (T0) ^= (T1); \
  389. \
  390. (T3) ^= (T1); \
  391. (T2) ^= (T0); \
  392. (T1) ^= (T2); \
  393. } while(0)
  394. /* Byte-level diffusion */
  395. #define ARIA_DIFF_BYTE(T0, T1, T2, T3) \
  396. do { \
  397. (T1) = (((T1) << 8) & 0xff00ff00) ^ (((T1) >> 8) & 0x00ff00ff); \
  398. (T2) = rotr32(T2, 16); \
  399. (T3) = bswap32(T3); \
  400. } while(0)
  401. /* Odd round Substitution & Diffusion */
  402. #define ARIA_SUBST_DIFF_ODD(T0, T1, T2, T3) \
  403. do { \
  404. ARIA_SBOX_LAYER1_WITH_PRE_DIFF(T0, T1, T2, T3); \
  405. ARIA_DIFF_WORD(T0, T1, T2, T3); \
  406. ARIA_DIFF_BYTE(T0, T1, T2, T3); \
  407. ARIA_DIFF_WORD(T0, T1, T2, T3); \
  408. } while(0)
  409. /* Even round Substitution & Diffusion */
  410. #define ARIA_SUBST_DIFF_EVEN(T0, T1, T2, T3) \
  411. do { \
  412. ARIA_SBOX_LAYER2_WITH_PRE_DIFF(T0, T1, T2, T3); \
  413. ARIA_DIFF_WORD(T0, T1, T2, T3); \
  414. ARIA_DIFF_BYTE(T2, T3, T0, T1); \
  415. ARIA_DIFF_WORD(T0, T1, T2, T3); \
  416. } while(0)
  417. /* Q, R Macro expanded ARIA GSRK */
  418. #define _ARIA_GSRK(RK, X, Y, Q, R) \
  419. do { \
  420. (RK)->u[0] = \
  421. ((X)[0]) ^ \
  422. (((Y)[((Q) ) % 4]) >> (R)) ^ \
  423. (((Y)[((Q) + 3) % 4]) << (32 - (R))); \
  424. (RK)->u[1] = \
  425. ((X)[1]) ^ \
  426. (((Y)[((Q) + 1) % 4]) >> (R)) ^ \
  427. (((Y)[((Q) ) % 4]) << (32 - (R))); \
  428. (RK)->u[2] = \
  429. ((X)[2]) ^ \
  430. (((Y)[((Q) + 2) % 4]) >> (R)) ^ \
  431. (((Y)[((Q) + 1) % 4]) << (32 - (R))); \
  432. (RK)->u[3] = \
  433. ((X)[3]) ^ \
  434. (((Y)[((Q) + 3) % 4]) >> (R)) ^ \
  435. (((Y)[((Q) + 2) % 4]) << (32 - (R))); \
  436. } while(0)
  437. #define ARIA_GSRK(RK, X, Y, N) _ARIA_GSRK(RK, X, Y, 4 - ((N) / 32), (N) % 32)
  438. #define ARIA_DEC_DIFF_BYTE(X, Y, TMP, TMP2) \
  439. do { \
  440. (TMP) = (X); \
  441. (TMP2) = rotr32((TMP), 8); \
  442. (Y) = (TMP2) ^ rotr32((TMP) ^ (TMP2), 16); \
  443. } while(0)
  444. void aria_encrypt(const unsigned char *in, unsigned char *out,
  445. const ARIA_KEY *key)
  446. {
  447. register uint32_t reg0, reg1, reg2, reg3;
  448. int Nr;
  449. const ARIA_u128 *rk;
  450. if (in == NULL || out == NULL || key == NULL) {
  451. return;
  452. }
  453. rk = key->rd_key;
  454. Nr = key->rounds;
  455. if (Nr != 12 && Nr != 14 && Nr != 16) {
  456. return;
  457. }
  458. reg0 = GET_U32_BE(in, 0);
  459. reg1 = GET_U32_BE(in, 1);
  460. reg2 = GET_U32_BE(in, 2);
  461. reg3 = GET_U32_BE(in, 3);
  462. ARIA_ADD_ROUND_KEY(rk, reg0, reg1, reg2, reg3);
  463. rk++;
  464. ARIA_SUBST_DIFF_ODD(reg0, reg1, reg2, reg3);
  465. ARIA_ADD_ROUND_KEY(rk, reg0, reg1, reg2, reg3);
  466. rk++;
  467. while(Nr -= 2){
  468. ARIA_SUBST_DIFF_EVEN(reg0, reg1, reg2, reg3);
  469. ARIA_ADD_ROUND_KEY(rk, reg0, reg1, reg2, reg3);
  470. rk++;
  471. ARIA_SUBST_DIFF_ODD(reg0, reg1, reg2, reg3);
  472. ARIA_ADD_ROUND_KEY(rk, reg0, reg1, reg2, reg3);
  473. rk++;
  474. }
  475. reg0 = rk->u[0] ^ MAKE_U32(
  476. (uint8_t)(X1[GET_U8_BE(reg0, 0)] ),
  477. (uint8_t)(X2[GET_U8_BE(reg0, 1)] >> 8),
  478. (uint8_t)(S1[GET_U8_BE(reg0, 2)] ),
  479. (uint8_t)(S2[GET_U8_BE(reg0, 3)] ));
  480. reg1 = rk->u[1] ^ MAKE_U32(
  481. (uint8_t)(X1[GET_U8_BE(reg1, 0)] ),
  482. (uint8_t)(X2[GET_U8_BE(reg1, 1)] >> 8),
  483. (uint8_t)(S1[GET_U8_BE(reg1, 2)] ),
  484. (uint8_t)(S2[GET_U8_BE(reg1, 3)] ));
  485. reg2 = rk->u[2] ^ MAKE_U32(
  486. (uint8_t)(X1[GET_U8_BE(reg2, 0)] ),
  487. (uint8_t)(X2[GET_U8_BE(reg2, 1)] >> 8),
  488. (uint8_t)(S1[GET_U8_BE(reg2, 2)] ),
  489. (uint8_t)(S2[GET_U8_BE(reg2, 3)] ));
  490. reg3 = rk->u[3] ^ MAKE_U32(
  491. (uint8_t)(X1[GET_U8_BE(reg3, 0)] ),
  492. (uint8_t)(X2[GET_U8_BE(reg3, 1)] >> 8),
  493. (uint8_t)(S1[GET_U8_BE(reg3, 2)] ),
  494. (uint8_t)(S2[GET_U8_BE(reg3, 3)] ));
  495. PUT_U32_BE(out, 0, reg0);
  496. PUT_U32_BE(out, 1, reg1);
  497. PUT_U32_BE(out, 2, reg2);
  498. PUT_U32_BE(out, 3, reg3);
  499. }
  500. int aria_set_encrypt_key(const unsigned char *userKey, const int bits,
  501. ARIA_KEY *key)
  502. {
  503. register uint32_t reg0, reg1, reg2, reg3;
  504. uint32_t w0[4], w1[4], w2[4], w3[4];
  505. const uint32_t *ck;
  506. ARIA_u128 *rk;
  507. int Nr = (bits + 256) / 32;
  508. if (userKey == NULL || key == NULL) {
  509. return -1;
  510. }
  511. if (bits != 128 && bits != 192 && bits != 256) {
  512. return -2;
  513. }
  514. rk = key->rd_key;
  515. key->rounds = Nr;
  516. ck = &Key_RC[(bits - 128) / 64][0];
  517. w0[0] = GET_U32_BE(userKey, 0);
  518. w0[1] = GET_U32_BE(userKey, 1);
  519. w0[2] = GET_U32_BE(userKey, 2);
  520. w0[3] = GET_U32_BE(userKey, 3);
  521. reg0 = w0[0] ^ ck[0];
  522. reg1 = w0[1] ^ ck[1];
  523. reg2 = w0[2] ^ ck[2];
  524. reg3 = w0[3] ^ ck[3];
  525. ARIA_SUBST_DIFF_ODD(reg0, reg1, reg2, reg3);
  526. if (bits > 128) {
  527. w1[0] = GET_U32_BE(userKey, 4);
  528. w1[1] = GET_U32_BE(userKey, 5);
  529. if (bits > 192) {
  530. w1[2] = GET_U32_BE(userKey, 6);
  531. w1[3] = GET_U32_BE(userKey, 7);
  532. }
  533. else {
  534. w1[2] = w1[3] = 0;
  535. }
  536. }
  537. else {
  538. w1[0] = w1[1] = w1[2] = w1[3] = 0;
  539. }
  540. w1[0] ^= reg0;
  541. w1[1] ^= reg1;
  542. w1[2] ^= reg2;
  543. w1[3] ^= reg3;
  544. reg0 = w1[0];
  545. reg1 = w1[1];
  546. reg2 = w1[2];
  547. reg3 = w1[3];
  548. reg0 ^= ck[4];
  549. reg1 ^= ck[5];
  550. reg2 ^= ck[6];
  551. reg3 ^= ck[7];
  552. ARIA_SUBST_DIFF_EVEN(reg0, reg1, reg2, reg3);
  553. reg0 ^= w0[0];
  554. reg1 ^= w0[1];
  555. reg2 ^= w0[2];
  556. reg3 ^= w0[3];
  557. w2[0] = reg0;
  558. w2[1] = reg1;
  559. w2[2] = reg2;
  560. w2[3] = reg3;
  561. reg0 ^= ck[8];
  562. reg1 ^= ck[9];
  563. reg2 ^= ck[10];
  564. reg3 ^= ck[11];
  565. ARIA_SUBST_DIFF_ODD(reg0, reg1, reg2, reg3);
  566. w3[0] = reg0 ^ w1[0];
  567. w3[1] = reg1 ^ w1[1];
  568. w3[2] = reg2 ^ w1[2];
  569. w3[3] = reg3 ^ w1[3];
  570. ARIA_GSRK(rk, w0, w1, 19);
  571. rk++;
  572. ARIA_GSRK(rk, w1, w2, 19);
  573. rk++;
  574. ARIA_GSRK(rk, w2, w3, 19);
  575. rk++;
  576. ARIA_GSRK(rk, w3, w0, 19);
  577. rk++;
  578. ARIA_GSRK(rk, w0, w1, 31);
  579. rk++;
  580. ARIA_GSRK(rk, w1, w2, 31);
  581. rk++;
  582. ARIA_GSRK(rk, w2, w3, 31);
  583. rk++;
  584. ARIA_GSRK(rk, w3, w0, 31);
  585. rk++;
  586. ARIA_GSRK(rk, w0, w1, 67);
  587. rk++;
  588. ARIA_GSRK(rk, w1, w2, 67);
  589. rk++;
  590. ARIA_GSRK(rk, w2, w3, 67);
  591. rk++;
  592. ARIA_GSRK(rk, w3, w0, 67);
  593. rk++;
  594. ARIA_GSRK(rk, w0, w1, 97);
  595. if (bits > 128) {
  596. rk++;
  597. ARIA_GSRK(rk, w1, w2, 97);
  598. rk++;
  599. ARIA_GSRK(rk, w2, w3, 97);
  600. }
  601. if (bits > 192) {
  602. rk++;
  603. ARIA_GSRK(rk, w3, w0, 97);
  604. rk++;
  605. ARIA_GSRK(rk, w0, w1, 109);
  606. }
  607. return 0;
  608. }
  609. int aria_set_decrypt_key(const unsigned char *userKey, const int bits,
  610. ARIA_KEY *key)
  611. {
  612. ARIA_u128 *rk_head;
  613. ARIA_u128 *rk_tail;
  614. register uint32_t w1, w2;
  615. register uint32_t reg0, reg1, reg2, reg3;
  616. uint32_t s0, s1, s2, s3;
  617. const int r = aria_set_encrypt_key(userKey, bits, key);
  618. if (r != 0) {
  619. return r;
  620. }
  621. rk_head = key->rd_key;
  622. rk_tail = rk_head + key->rounds;
  623. reg0 = rk_head->u[0];
  624. reg1 = rk_head->u[1];
  625. reg2 = rk_head->u[2];
  626. reg3 = rk_head->u[3];
  627. memcpy(rk_head, rk_tail, ARIA_BLOCK_SIZE);
  628. rk_tail->u[0] = reg0;
  629. rk_tail->u[1] = reg1;
  630. rk_tail->u[2] = reg2;
  631. rk_tail->u[3] = reg3;
  632. rk_head++;
  633. rk_tail--;
  634. for (; rk_head < rk_tail; rk_head++, rk_tail--) {
  635. ARIA_DEC_DIFF_BYTE(rk_head->u[0], reg0, w1, w2);
  636. ARIA_DEC_DIFF_BYTE(rk_head->u[1], reg1, w1, w2);
  637. ARIA_DEC_DIFF_BYTE(rk_head->u[2], reg2, w1, w2);
  638. ARIA_DEC_DIFF_BYTE(rk_head->u[3], reg3, w1, w2);
  639. ARIA_DIFF_WORD(reg0, reg1, reg2, reg3);
  640. ARIA_DIFF_BYTE(reg0, reg1, reg2, reg3);
  641. ARIA_DIFF_WORD(reg0, reg1, reg2, reg3);
  642. s0 = reg0;
  643. s1 = reg1;
  644. s2 = reg2;
  645. s3 = reg3;
  646. ARIA_DEC_DIFF_BYTE(rk_tail->u[0], reg0, w1, w2);
  647. ARIA_DEC_DIFF_BYTE(rk_tail->u[1], reg1, w1, w2);
  648. ARIA_DEC_DIFF_BYTE(rk_tail->u[2], reg2, w1, w2);
  649. ARIA_DEC_DIFF_BYTE(rk_tail->u[3], reg3, w1, w2);
  650. ARIA_DIFF_WORD(reg0, reg1, reg2, reg3);
  651. ARIA_DIFF_BYTE(reg0, reg1, reg2, reg3);
  652. ARIA_DIFF_WORD(reg0, reg1, reg2, reg3);
  653. rk_head->u[0] = reg0;
  654. rk_head->u[1] = reg1;
  655. rk_head->u[2] = reg2;
  656. rk_head->u[3] = reg3;
  657. rk_tail->u[0] = s0;
  658. rk_tail->u[1] = s1;
  659. rk_tail->u[2] = s2;
  660. rk_tail->u[3] = s3;
  661. }
  662. ARIA_DEC_DIFF_BYTE(rk_head->u[0], reg0, w1, w2);
  663. ARIA_DEC_DIFF_BYTE(rk_head->u[1], reg1, w1, w2);
  664. ARIA_DEC_DIFF_BYTE(rk_head->u[2], reg2, w1, w2);
  665. ARIA_DEC_DIFF_BYTE(rk_head->u[3], reg3, w1, w2);
  666. ARIA_DIFF_WORD(reg0, reg1, reg2, reg3);
  667. ARIA_DIFF_BYTE(reg0, reg1, reg2, reg3);
  668. ARIA_DIFF_WORD(reg0, reg1, reg2, reg3);
  669. rk_tail->u[0] = reg0;
  670. rk_tail->u[1] = reg1;
  671. rk_tail->u[2] = reg2;
  672. rk_tail->u[3] = reg3;
  673. return 0;
  674. }
  675. #else
  676. static const unsigned char sb1[256] = {
  677. 0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5,
  678. 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76,
  679. 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0,
  680. 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0,
  681. 0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc,
  682. 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,
  683. 0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a,
  684. 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75,
  685. 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0,
  686. 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84,
  687. 0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b,
  688. 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,
  689. 0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85,
  690. 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8,
  691. 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5,
  692. 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2,
  693. 0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17,
  694. 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,
  695. 0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88,
  696. 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb,
  697. 0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c,
  698. 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79,
  699. 0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9,
  700. 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,
  701. 0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6,
  702. 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a,
  703. 0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e,
  704. 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e,
  705. 0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94,
  706. 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,
  707. 0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68,
  708. 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16
  709. };
  710. static const unsigned char sb2[256] = {
  711. 0xe2, 0x4e, 0x54, 0xfc, 0x94, 0xc2, 0x4a, 0xcc,
  712. 0x62, 0x0d, 0x6a, 0x46, 0x3c, 0x4d, 0x8b, 0xd1,
  713. 0x5e, 0xfa, 0x64, 0xcb, 0xb4, 0x97, 0xbe, 0x2b,
  714. 0xbc, 0x77, 0x2e, 0x03, 0xd3, 0x19, 0x59, 0xc1,
  715. 0x1d, 0x06, 0x41, 0x6b, 0x55, 0xf0, 0x99, 0x69,
  716. 0xea, 0x9c, 0x18, 0xae, 0x63, 0xdf, 0xe7, 0xbb,
  717. 0x00, 0x73, 0x66, 0xfb, 0x96, 0x4c, 0x85, 0xe4,
  718. 0x3a, 0x09, 0x45, 0xaa, 0x0f, 0xee, 0x10, 0xeb,
  719. 0x2d, 0x7f, 0xf4, 0x29, 0xac, 0xcf, 0xad, 0x91,
  720. 0x8d, 0x78, 0xc8, 0x95, 0xf9, 0x2f, 0xce, 0xcd,
  721. 0x08, 0x7a, 0x88, 0x38, 0x5c, 0x83, 0x2a, 0x28,
  722. 0x47, 0xdb, 0xb8, 0xc7, 0x93, 0xa4, 0x12, 0x53,
  723. 0xff, 0x87, 0x0e, 0x31, 0x36, 0x21, 0x58, 0x48,
  724. 0x01, 0x8e, 0x37, 0x74, 0x32, 0xca, 0xe9, 0xb1,
  725. 0xb7, 0xab, 0x0c, 0xd7, 0xc4, 0x56, 0x42, 0x26,
  726. 0x07, 0x98, 0x60, 0xd9, 0xb6, 0xb9, 0x11, 0x40,
  727. 0xec, 0x20, 0x8c, 0xbd, 0xa0, 0xc9, 0x84, 0x04,
  728. 0x49, 0x23, 0xf1, 0x4f, 0x50, 0x1f, 0x13, 0xdc,
  729. 0xd8, 0xc0, 0x9e, 0x57, 0xe3, 0xc3, 0x7b, 0x65,
  730. 0x3b, 0x02, 0x8f, 0x3e, 0xe8, 0x25, 0x92, 0xe5,
  731. 0x15, 0xdd, 0xfd, 0x17, 0xa9, 0xbf, 0xd4, 0x9a,
  732. 0x7e, 0xc5, 0x39, 0x67, 0xfe, 0x76, 0x9d, 0x43,
  733. 0xa7, 0xe1, 0xd0, 0xf5, 0x68, 0xf2, 0x1b, 0x34,
  734. 0x70, 0x05, 0xa3, 0x8a, 0xd5, 0x79, 0x86, 0xa8,
  735. 0x30, 0xc6, 0x51, 0x4b, 0x1e, 0xa6, 0x27, 0xf6,
  736. 0x35, 0xd2, 0x6e, 0x24, 0x16, 0x82, 0x5f, 0xda,
  737. 0xe6, 0x75, 0xa2, 0xef, 0x2c, 0xb2, 0x1c, 0x9f,
  738. 0x5d, 0x6f, 0x80, 0x0a, 0x72, 0x44, 0x9b, 0x6c,
  739. 0x90, 0x0b, 0x5b, 0x33, 0x7d, 0x5a, 0x52, 0xf3,
  740. 0x61, 0xa1, 0xf7, 0xb0, 0xd6, 0x3f, 0x7c, 0x6d,
  741. 0xed, 0x14, 0xe0, 0xa5, 0x3d, 0x22, 0xb3, 0xf8,
  742. 0x89, 0xde, 0x71, 0x1a, 0xaf, 0xba, 0xb5, 0x81
  743. };
  744. static const unsigned char sb3[256] = {
  745. 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38,
  746. 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb,
  747. 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87,
  748. 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb,
  749. 0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d,
  750. 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e,
  751. 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2,
  752. 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25,
  753. 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16,
  754. 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92,
  755. 0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda,
  756. 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84,
  757. 0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a,
  758. 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06,
  759. 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02,
  760. 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b,
  761. 0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea,
  762. 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73,
  763. 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85,
  764. 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e,
  765. 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89,
  766. 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b,
  767. 0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20,
  768. 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4,
  769. 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31,
  770. 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f,
  771. 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d,
  772. 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef,
  773. 0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0,
  774. 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61,
  775. 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26,
  776. 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d
  777. };
  778. static const unsigned char sb4[256] = {
  779. 0x30, 0x68, 0x99, 0x1b, 0x87, 0xb9, 0x21, 0x78,
  780. 0x50, 0x39, 0xdb, 0xe1, 0x72, 0x09, 0x62, 0x3c,
  781. 0x3e, 0x7e, 0x5e, 0x8e, 0xf1, 0xa0, 0xcc, 0xa3,
  782. 0x2a, 0x1d, 0xfb, 0xb6, 0xd6, 0x20, 0xc4, 0x8d,
  783. 0x81, 0x65, 0xf5, 0x89, 0xcb, 0x9d, 0x77, 0xc6,
  784. 0x57, 0x43, 0x56, 0x17, 0xd4, 0x40, 0x1a, 0x4d,
  785. 0xc0, 0x63, 0x6c, 0xe3, 0xb7, 0xc8, 0x64, 0x6a,
  786. 0x53, 0xaa, 0x38, 0x98, 0x0c, 0xf4, 0x9b, 0xed,
  787. 0x7f, 0x22, 0x76, 0xaf, 0xdd, 0x3a, 0x0b, 0x58,
  788. 0x67, 0x88, 0x06, 0xc3, 0x35, 0x0d, 0x01, 0x8b,
  789. 0x8c, 0xc2, 0xe6, 0x5f, 0x02, 0x24, 0x75, 0x93,
  790. 0x66, 0x1e, 0xe5, 0xe2, 0x54, 0xd8, 0x10, 0xce,
  791. 0x7a, 0xe8, 0x08, 0x2c, 0x12, 0x97, 0x32, 0xab,
  792. 0xb4, 0x27, 0x0a, 0x23, 0xdf, 0xef, 0xca, 0xd9,
  793. 0xb8, 0xfa, 0xdc, 0x31, 0x6b, 0xd1, 0xad, 0x19,
  794. 0x49, 0xbd, 0x51, 0x96, 0xee, 0xe4, 0xa8, 0x41,
  795. 0xda, 0xff, 0xcd, 0x55, 0x86, 0x36, 0xbe, 0x61,
  796. 0x52, 0xf8, 0xbb, 0x0e, 0x82, 0x48, 0x69, 0x9a,
  797. 0xe0, 0x47, 0x9e, 0x5c, 0x04, 0x4b, 0x34, 0x15,
  798. 0x79, 0x26, 0xa7, 0xde, 0x29, 0xae, 0x92, 0xd7,
  799. 0x84, 0xe9, 0xd2, 0xba, 0x5d, 0xf3, 0xc5, 0xb0,
  800. 0xbf, 0xa4, 0x3b, 0x71, 0x44, 0x46, 0x2b, 0xfc,
  801. 0xeb, 0x6f, 0xd5, 0xf6, 0x14, 0xfe, 0x7c, 0x70,
  802. 0x5a, 0x7d, 0xfd, 0x2f, 0x18, 0x83, 0x16, 0xa5,
  803. 0x91, 0x1f, 0x05, 0x95, 0x74, 0xa9, 0xc1, 0x5b,
  804. 0x4a, 0x85, 0x6d, 0x13, 0x07, 0x4f, 0x4e, 0x45,
  805. 0xb2, 0x0f, 0xc9, 0x1c, 0xa6, 0xbc, 0xec, 0x73,
  806. 0x90, 0x7b, 0xcf, 0x59, 0x8f, 0xa1, 0xf9, 0x2d,
  807. 0xf2, 0xb1, 0x00, 0x94, 0x37, 0x9f, 0xd0, 0x2e,
  808. 0x9c, 0x6e, 0x28, 0x3f, 0x80, 0xf0, 0x3d, 0xd3,
  809. 0x25, 0x8a, 0xb5, 0xe7, 0x42, 0xb3, 0xc7, 0xea,
  810. 0xf7, 0x4c, 0x11, 0x33, 0x03, 0xa2, 0xac, 0x60
  811. };
  812. static const ARIA_u128 c1 = {{
  813. 0x51, 0x7c, 0xc1, 0xb7, 0x27, 0x22, 0x0a, 0x94,
  814. 0xfe, 0x13, 0xab, 0xe8, 0xfa, 0x9a, 0x6e, 0xe0
  815. }};
  816. static const ARIA_u128 c2 = {{
  817. 0x6d, 0xb1, 0x4a, 0xcc, 0x9e, 0x21, 0xc8, 0x20,
  818. 0xff, 0x28, 0xb1, 0xd5, 0xef, 0x5d, 0xe2, 0xb0
  819. }};
  820. static const ARIA_u128 c3 = {{
  821. 0xdb, 0x92, 0x37, 0x1d, 0x21, 0x26, 0xe9, 0x70,
  822. 0x03, 0x24, 0x97, 0x75, 0x04, 0xe8, 0xc9, 0x0e
  823. }};
  824. /*
  825. * Exclusive or two 128 bit values into the result.
  826. * It is safe for the result to be the same as the either input.
  827. */
  828. static void xor128(ARIA_c128 o, const ARIA_c128 x, const ARIA_u128 *y)
  829. {
  830. int i;
  831. for (i = 0; i < ARIA_BLOCK_SIZE; i++)
  832. o[i] = x[i] ^ y->c[i];
  833. }
  834. /*
  835. * Generalised circular rotate right and exclusive or function.
  836. * It is safe for the output to overlap either input.
  837. */
  838. static ossl_inline void rotnr(unsigned int n, ARIA_u128 *o,
  839. const ARIA_u128 *xor, const ARIA_u128 *z)
  840. {
  841. const unsigned int bytes = n / 8, bits = n % 8;
  842. unsigned int i;
  843. ARIA_u128 t;
  844. for (i = 0; i < ARIA_BLOCK_SIZE; i++)
  845. t.c[(i + bytes) % ARIA_BLOCK_SIZE] = z->c[i];
  846. for (i = 0; i < ARIA_BLOCK_SIZE; i++)
  847. o->c[i] = ((t.c[i] >> bits) |
  848. (t.c[i ? i - 1 : ARIA_BLOCK_SIZE - 1] << (8 - bits))) ^
  849. xor->c[i];
  850. }
  851. /*
  852. * Circular rotate 19 bits right and xor.
  853. * It is safe for the output to overlap either input.
  854. */
  855. static void rot19r(ARIA_u128 *o, const ARIA_u128 *xor, const ARIA_u128 *z)
  856. {
  857. rotnr(19, o, xor, z);
  858. }
  859. /*
  860. * Circular rotate 31 bits right and xor.
  861. * It is safe for the output to overlap either input.
  862. */
  863. static void rot31r(ARIA_u128 *o, const ARIA_u128 *xor, const ARIA_u128 *z)
  864. {
  865. rotnr(31, o, xor, z);
  866. }
  867. /*
  868. * Circular rotate 61 bits left and xor.
  869. * It is safe for the output to overlap either input.
  870. */
  871. static void rot61l(ARIA_u128 *o, const ARIA_u128 *xor, const ARIA_u128 *z)
  872. {
  873. rotnr(8 * ARIA_BLOCK_SIZE - 61, o, xor, z);
  874. }
  875. /*
  876. * Circular rotate 31 bits left and xor.
  877. * It is safe for the output to overlap either input.
  878. */
  879. static void rot31l(ARIA_u128 *o, const ARIA_u128 *xor, const ARIA_u128 *z)
  880. {
  881. rotnr(8 * ARIA_BLOCK_SIZE - 31, o, xor, z);
  882. }
  883. /*
  884. * Circular rotate 19 bits left and xor.
  885. * It is safe for the output to overlap either input.
  886. */
  887. static void rot19l(ARIA_u128 *o, const ARIA_u128 *xor, const ARIA_u128 *z)
  888. {
  889. rotnr(8 * ARIA_BLOCK_SIZE - 19, o, xor, z);
  890. }
  891. /*
  892. * First substitution and xor layer, used for odd steps.
  893. * It is safe for the input and output to be the same.
  894. */
  895. static void sl1(ARIA_u128 *o, const ARIA_u128 *x, const ARIA_u128 *y)
  896. {
  897. unsigned int i;
  898. for (i = 0; i < ARIA_BLOCK_SIZE; i += 4) {
  899. o->c[i ] = sb1[x->c[i ] ^ y->c[i ]];
  900. o->c[i + 1] = sb2[x->c[i + 1] ^ y->c[i + 1]];
  901. o->c[i + 2] = sb3[x->c[i + 2] ^ y->c[i + 2]];
  902. o->c[i + 3] = sb4[x->c[i + 3] ^ y->c[i + 3]];
  903. }
  904. }
  905. /*
  906. * Second substitution and xor layer, used for even steps.
  907. * It is safe for the input and output to be the same.
  908. */
  909. static void sl2(ARIA_c128 o, const ARIA_u128 *x, const ARIA_u128 *y)
  910. {
  911. unsigned int i;
  912. for (i = 0; i < ARIA_BLOCK_SIZE; i += 4) {
  913. o[i ] = sb3[x->c[i ] ^ y->c[i ]];
  914. o[i + 1] = sb4[x->c[i + 1] ^ y->c[i + 1]];
  915. o[i + 2] = sb1[x->c[i + 2] ^ y->c[i + 2]];
  916. o[i + 3] = sb2[x->c[i + 3] ^ y->c[i + 3]];
  917. }
  918. }
  919. /*
  920. * Diffusion layer step
  921. * It is NOT safe for the input and output to overlap.
  922. */
  923. static void a(ARIA_u128 *y, const ARIA_u128 *x)
  924. {
  925. y->c[ 0] = x->c[ 3] ^ x->c[ 4] ^ x->c[ 6] ^ x->c[ 8] ^
  926. x->c[ 9] ^ x->c[13] ^ x->c[14];
  927. y->c[ 1] = x->c[ 2] ^ x->c[ 5] ^ x->c[ 7] ^ x->c[ 8] ^
  928. x->c[ 9] ^ x->c[12] ^ x->c[15];
  929. y->c[ 2] = x->c[ 1] ^ x->c[ 4] ^ x->c[ 6] ^ x->c[10] ^
  930. x->c[11] ^ x->c[12] ^ x->c[15];
  931. y->c[ 3] = x->c[ 0] ^ x->c[ 5] ^ x->c[ 7] ^ x->c[10] ^
  932. x->c[11] ^ x->c[13] ^ x->c[14];
  933. y->c[ 4] = x->c[ 0] ^ x->c[ 2] ^ x->c[ 5] ^ x->c[ 8] ^
  934. x->c[11] ^ x->c[14] ^ x->c[15];
  935. y->c[ 5] = x->c[ 1] ^ x->c[ 3] ^ x->c[ 4] ^ x->c[ 9] ^
  936. x->c[10] ^ x->c[14] ^ x->c[15];
  937. y->c[ 6] = x->c[ 0] ^ x->c[ 2] ^ x->c[ 7] ^ x->c[ 9] ^
  938. x->c[10] ^ x->c[12] ^ x->c[13];
  939. y->c[ 7] = x->c[ 1] ^ x->c[ 3] ^ x->c[ 6] ^ x->c[ 8] ^
  940. x->c[11] ^ x->c[12] ^ x->c[13];
  941. y->c[ 8] = x->c[ 0] ^ x->c[ 1] ^ x->c[ 4] ^ x->c[ 7] ^
  942. x->c[10] ^ x->c[13] ^ x->c[15];
  943. y->c[ 9] = x->c[ 0] ^ x->c[ 1] ^ x->c[ 5] ^ x->c[ 6] ^
  944. x->c[11] ^ x->c[12] ^ x->c[14];
  945. y->c[10] = x->c[ 2] ^ x->c[ 3] ^ x->c[ 5] ^ x->c[ 6] ^
  946. x->c[ 8] ^ x->c[13] ^ x->c[15];
  947. y->c[11] = x->c[ 2] ^ x->c[ 3] ^ x->c[ 4] ^ x->c[ 7] ^
  948. x->c[ 9] ^ x->c[12] ^ x->c[14];
  949. y->c[12] = x->c[ 1] ^ x->c[ 2] ^ x->c[ 6] ^ x->c[ 7] ^
  950. x->c[ 9] ^ x->c[11] ^ x->c[12];
  951. y->c[13] = x->c[ 0] ^ x->c[ 3] ^ x->c[ 6] ^ x->c[ 7] ^
  952. x->c[ 8] ^ x->c[10] ^ x->c[13];
  953. y->c[14] = x->c[ 0] ^ x->c[ 3] ^ x->c[ 4] ^ x->c[ 5] ^
  954. x->c[ 9] ^ x->c[11] ^ x->c[14];
  955. y->c[15] = x->c[ 1] ^ x->c[ 2] ^ x->c[ 4] ^ x->c[ 5] ^
  956. x->c[ 8] ^ x->c[10] ^ x->c[15];
  957. }
  958. /*
  959. * Odd round function
  960. * Apply the first substitution layer and then a diffusion step.
  961. * It is safe for the input and output to overlap.
  962. */
  963. static ossl_inline void FO(ARIA_u128 *o, const ARIA_u128 *d,
  964. const ARIA_u128 *rk)
  965. {
  966. ARIA_u128 y;
  967. sl1(&y, d, rk);
  968. a(o, &y);
  969. }
  970. /*
  971. * Even round function
  972. * Apply the second substitution layer and then a diffusion step.
  973. * It is safe for the input and output to overlap.
  974. */
  975. static ossl_inline void FE(ARIA_u128 *o, const ARIA_u128 *d,
  976. const ARIA_u128 *rk)
  977. {
  978. ARIA_u128 y;
  979. sl2(y.c, d, rk);
  980. a(o, &y);
  981. }
  982. /*
  983. * Encrypt or decrypt a single block
  984. * in and out can overlap
  985. */
  986. static void do_encrypt(unsigned char *o, const unsigned char *pin,
  987. unsigned int rounds, const ARIA_u128 *keys)
  988. {
  989. ARIA_u128 p;
  990. unsigned int i;
  991. memcpy(&p, pin, sizeof(p));
  992. for (i = 0; i < rounds - 2; i += 2) {
  993. FO(&p, &p, &keys[i]);
  994. FE(&p, &p, &keys[i + 1]);
  995. }
  996. FO(&p, &p, &keys[rounds - 2]);
  997. sl2(o, &p, &keys[rounds - 1]);
  998. xor128(o, o, &keys[rounds]);
  999. }
  1000. /*
  1001. * Encrypt a single block
  1002. * in and out can overlap
  1003. */
  1004. void aria_encrypt(const unsigned char *in, unsigned char *out,
  1005. const ARIA_KEY *key)
  1006. {
  1007. assert(in != NULL && out != NULL && key != NULL);
  1008. do_encrypt(out, in, key->rounds, key->rd_key);
  1009. }
  1010. /*
  1011. * Expand the cipher key into the encryption key schedule.
  1012. * We short circuit execution of the last two
  1013. * or four rotations based on the key size.
  1014. */
  1015. int aria_set_encrypt_key(const unsigned char *userKey, const int bits,
  1016. ARIA_KEY *key)
  1017. {
  1018. const ARIA_u128 *ck1, *ck2, *ck3;
  1019. ARIA_u128 kr, w0, w1, w2, w3;
  1020. if (!userKey || !key)
  1021. return -1;
  1022. memcpy(w0.c, userKey, sizeof(w0));
  1023. switch (bits) {
  1024. default:
  1025. return -2;
  1026. case 128:
  1027. key->rounds = 12;
  1028. ck1 = &c1;
  1029. ck2 = &c2;
  1030. ck3 = &c3;
  1031. memset(kr.c, 0, sizeof(kr));
  1032. break;
  1033. case 192:
  1034. key->rounds = 14;
  1035. ck1 = &c2;
  1036. ck2 = &c3;
  1037. ck3 = &c1;
  1038. memcpy(kr.c, userKey + ARIA_BLOCK_SIZE, sizeof(kr) / 2);
  1039. memset(kr.c + ARIA_BLOCK_SIZE / 2, 0, sizeof(kr) / 2);
  1040. break;
  1041. case 256:
  1042. key->rounds = 16;
  1043. ck1 = &c3;
  1044. ck2 = &c1;
  1045. ck3 = &c2;
  1046. memcpy(kr.c, userKey + ARIA_BLOCK_SIZE, sizeof(kr));
  1047. break;
  1048. }
  1049. FO(&w3, &w0, ck1); xor128(w1.c, w3.c, &kr);
  1050. FE(&w3, &w1, ck2); xor128(w2.c, w3.c, &w0);
  1051. FO(&kr, &w2, ck3); xor128(w3.c, kr.c, &w1);
  1052. rot19r(&key->rd_key[ 0], &w0, &w1);
  1053. rot19r(&key->rd_key[ 1], &w1, &w2);
  1054. rot19r(&key->rd_key[ 2], &w2, &w3);
  1055. rot19r(&key->rd_key[ 3], &w3, &w0);
  1056. rot31r(&key->rd_key[ 4], &w0, &w1);
  1057. rot31r(&key->rd_key[ 5], &w1, &w2);
  1058. rot31r(&key->rd_key[ 6], &w2, &w3);
  1059. rot31r(&key->rd_key[ 7], &w3, &w0);
  1060. rot61l(&key->rd_key[ 8], &w0, &w1);
  1061. rot61l(&key->rd_key[ 9], &w1, &w2);
  1062. rot61l(&key->rd_key[10], &w2, &w3);
  1063. rot61l(&key->rd_key[11], &w3, &w0);
  1064. rot31l(&key->rd_key[12], &w0, &w1);
  1065. if (key->rounds > 12) {
  1066. rot31l(&key->rd_key[13], &w1, &w2);
  1067. rot31l(&key->rd_key[14], &w2, &w3);
  1068. if (key->rounds > 14) {
  1069. rot31l(&key->rd_key[15], &w3, &w0);
  1070. rot19l(&key->rd_key[16], &w0, &w1);
  1071. }
  1072. }
  1073. return 0;
  1074. }
  1075. /*
  1076. * Expand the cipher key into the decryption key schedule.
  1077. */
  1078. int aria_set_decrypt_key(const unsigned char *userKey, const int bits,
  1079. ARIA_KEY *key)
  1080. {
  1081. ARIA_KEY ek;
  1082. const int r = aria_set_encrypt_key(userKey, bits, &ek);
  1083. unsigned int i, rounds = ek.rounds;
  1084. if (r == 0) {
  1085. key->rounds = rounds;
  1086. memcpy(&key->rd_key[0], &ek.rd_key[rounds], sizeof(key->rd_key[0]));
  1087. for (i = 1; i < rounds; i++)
  1088. a(&key->rd_key[i], &ek.rd_key[rounds - i]);
  1089. memcpy(&key->rd_key[rounds], &ek.rd_key[0], sizeof(key->rd_key[rounds]));
  1090. }
  1091. return r;
  1092. }
  1093. #endif