git.sesse.net Git - ffmpeg/blob - libavutil/blowfish.c

   1 /*
   2  * Blowfish algorithm
   3  * Copyright (c) 2012 Samuel Pitoiset
   4  *
   5  * loosely based on Paul Kocher's implementation
   6  *
   7  * This file is part of FFmpeg.
   8  *
   9  * FFmpeg is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * FFmpeg is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with FFmpeg; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  22  */
  23
  24 #include "avutil.h"
  25 #include "common.h"
  26 #include "intreadwrite.h"
  27 #include "blowfish.h"
  28
  29 static const uint32_t orig_p[AV_BF_ROUNDS + 2] = {
  30     0x243F6A88, 0x85A308D3, 0x13198A2E, 0x03707344,
  31     0xA4093822, 0x299F31D0, 0x082EFA98, 0xEC4E6C89,
  32     0x452821E6, 0x38D01377, 0xBE5466CF, 0x34E90C6C,
  33     0xC0AC29B7, 0xC97C50DD, 0x3F84D5B5, 0xB5470917,
  34     0x9216D5D9, 0x8979FB1B
  35 };
  36
  37 static const uint32_t orig_s[4][256] = {
  38     { 0xD1310BA6, 0x98DFB5AC, 0x2FFD72DB, 0xD01ADFB7,
  39       0xB8E1AFED, 0x6A267E96, 0xBA7C9045, 0xF12C7F99,
  40       0x24A19947, 0xB3916CF7, 0x0801F2E2, 0x858EFC16,
  41       0x636920D8, 0x71574E69, 0xA458FEA3, 0xF4933D7E,
  42       0x0D95748F, 0x728EB658, 0x718BCD58, 0x82154AEE,
  43       0x7B54A41D, 0xC25A59B5, 0x9C30D539, 0x2AF26013,
  44       0xC5D1B023, 0x286085F0, 0xCA417918, 0xB8DB38EF,
  45       0x8E79DCB0, 0x603A180E, 0x6C9E0E8B, 0xB01E8A3E,
  46       0xD71577C1, 0xBD314B27, 0x78AF2FDA, 0x55605C60,
  47       0xE65525F3, 0xAA55AB94, 0x57489862, 0x63E81440,
  48       0x55CA396A, 0x2AAB10B6, 0xB4CC5C34, 0x1141E8CE,
  49       0xA15486AF, 0x7C72E993, 0xB3EE1411, 0x636FBC2A,
  50       0x2BA9C55D, 0x741831F6, 0xCE5C3E16, 0x9B87931E,
  51       0xAFD6BA33, 0x6C24CF5C, 0x7A325381, 0x28958677,
  52       0x3B8F4898, 0x6B4BB9AF, 0xC4BFE81B, 0x66282193,
  53       0x61D809CC, 0xFB21A991, 0x487CAC60, 0x5DEC8032,
  54       0xEF845D5D, 0xE98575B1, 0xDC262302, 0xEB651B88,
  55       0x23893E81, 0xD396ACC5, 0x0F6D6FF3, 0x83F44239,
  56       0x2E0B4482, 0xA4842004, 0x69C8F04A, 0x9E1F9B5E,
  57       0x21C66842, 0xF6E96C9A, 0x670C9C61, 0xABD388F0,
  58       0x6A51A0D2, 0xD8542F68, 0x960FA728, 0xAB5133A3,
  59       0x6EEF0B6C, 0x137A3BE4, 0xBA3BF050, 0x7EFB2A98,
  60       0xA1F1651D, 0x39AF0176, 0x66CA593E, 0x82430E88,
  61       0x8CEE8619, 0x456F9FB4, 0x7D84A5C3, 0x3B8B5EBE,
  62       0xE06F75D8, 0x85C12073, 0x401A449F, 0x56C16AA6,
  63       0x4ED3AA62, 0x363F7706, 0x1BFEDF72, 0x429B023D,
  64       0x37D0D724, 0xD00A1248, 0xDB0FEAD3, 0x49F1C09B,
  65       0x075372C9, 0x80991B7B, 0x25D479D8, 0xF6E8DEF7,
  66       0xE3FE501A, 0xB6794C3B, 0x976CE0BD, 0x04C006BA,
  67       0xC1A94FB6, 0x409F60C4, 0x5E5C9EC2, 0x196A2463,
  68       0x68FB6FAF, 0x3E6C53B5, 0x1339B2EB, 0x3B52EC6F,
  69       0x6DFC511F, 0x9B30952C, 0xCC814544, 0xAF5EBD09,
  70       0xBEE3D004, 0xDE334AFD, 0x660F2807, 0x192E4BB3,
  71       0xC0CBA857, 0x45C8740F, 0xD20B5F39, 0xB9D3FBDB,
  72       0x5579C0BD, 0x1A60320A, 0xD6A100C6, 0x402C7279,
  73       0x679F25FE, 0xFB1FA3CC, 0x8EA5E9F8, 0xDB3222F8,
  74       0x3C7516DF, 0xFD616B15, 0x2F501EC8, 0xAD0552AB,
  75       0x323DB5FA, 0xFD238760, 0x53317B48, 0x3E00DF82,
  76       0x9E5C57BB, 0xCA6F8CA0, 0x1A87562E, 0xDF1769DB,
  77       0xD542A8F6, 0x287EFFC3, 0xAC6732C6, 0x8C4F5573,
  78       0x695B27B0, 0xBBCA58C8, 0xE1FFA35D, 0xB8F011A0,
  79       0x10FA3D98, 0xFD2183B8, 0x4AFCB56C, 0x2DD1D35B,
  80       0x9A53E479, 0xB6F84565, 0xD28E49BC, 0x4BFB9790,
  81       0xE1DDF2DA, 0xA4CB7E33, 0x62FB1341, 0xCEE4C6E8,
  82       0xEF20CADA, 0x36774C01, 0xD07E9EFE, 0x2BF11FB4,
  83       0x95DBDA4D, 0xAE909198, 0xEAAD8E71, 0x6B93D5A0,
  84       0xD08ED1D0, 0xAFC725E0, 0x8E3C5B2F, 0x8E7594B7,
  85       0x8FF6E2FB, 0xF2122B64, 0x8888B812, 0x900DF01C,
  86       0x4FAD5EA0, 0x688FC31C, 0xD1CFF191, 0xB3A8C1AD,
  87       0x2F2F2218, 0xBE0E1777, 0xEA752DFE, 0x8B021FA1,
  88       0xE5A0CC0F, 0xB56F74E8, 0x18ACF3D6, 0xCE89E299,
  89       0xB4A84FE0, 0xFD13E0B7, 0x7CC43B81, 0xD2ADA8D9,
  90       0x165FA266, 0x80957705, 0x93CC7314, 0x211A1477,
  91       0xE6AD2065, 0x77B5FA86, 0xC75442F5, 0xFB9D35CF,
  92       0xEBCDAF0C, 0x7B3E89A0, 0xD6411BD3, 0xAE1E7E49,
  93       0x00250E2D, 0x2071B35E, 0x226800BB, 0x57B8E0AF,
  94       0x2464369B, 0xF009B91E, 0x5563911D, 0x59DFA6AA,
  95       0x78C14389, 0xD95A537F, 0x207D5BA2, 0x02E5B9C5,
  96       0x83260376, 0x6295CFA9, 0x11C81968, 0x4E734A41,
  97       0xB3472DCA, 0x7B14A94A, 0x1B510052, 0x9A532915,
  98       0xD60F573F, 0xBC9BC6E4, 0x2B60A476, 0x81E67400,
  99       0x08BA6FB5, 0x571BE91F, 0xF296EC6B, 0x2A0DD915,
 100       0xB6636521, 0xE7B9F9B6, 0xFF34052E, 0xC5855664,
 101       0x53B02D5D, 0xA99F8FA1, 0x08BA4799, 0x6E85076A },
 102     { 0x4B7A70E9, 0xB5B32944, 0xDB75092E, 0xC4192623,
 103       0xAD6EA6B0, 0x49A7DF7D, 0x9CEE60B8, 0x8FEDB266,
 104       0xECAA8C71, 0x699A17FF, 0x5664526C, 0xC2B19EE1,
 105       0x193602A5, 0x75094C29, 0xA0591340, 0xE4183A3E,
 106       0x3F54989A, 0x5B429D65, 0x6B8FE4D6, 0x99F73FD6,
 107       0xA1D29C07, 0xEFE830F5, 0x4D2D38E6, 0xF0255DC1,
 108       0x4CDD2086, 0x8470EB26, 0x6382E9C6, 0x021ECC5E,
 109       0x09686B3F, 0x3EBAEFC9, 0x3C971814, 0x6B6A70A1,
 110       0x687F3584, 0x52A0E286, 0xB79C5305, 0xAA500737,
 111       0x3E07841C, 0x7FDEAE5C, 0x8E7D44EC, 0x5716F2B8,
 112       0xB03ADA37, 0xF0500C0D, 0xF01C1F04, 0x0200B3FF,
 113       0xAE0CF51A, 0x3CB574B2, 0x25837A58, 0xDC0921BD,
 114       0xD19113F9, 0x7CA92FF6, 0x94324773, 0x22F54701,
 115       0x3AE5E581, 0x37C2DADC, 0xC8B57634, 0x9AF3DDA7,
 116       0xA9446146, 0x0FD0030E, 0xECC8C73E, 0xA4751E41,
 117       0xE238CD99, 0x3BEA0E2F, 0x3280BBA1, 0x183EB331,
 118       0x4E548B38, 0x4F6DB908, 0x6F420D03, 0xF60A04BF,
 119       0x2CB81290, 0x24977C79, 0x5679B072, 0xBCAF89AF,
 120       0xDE9A771F, 0xD9930810, 0xB38BAE12, 0xDCCF3F2E,
 121       0x5512721F, 0x2E6B7124, 0x501ADDE6, 0x9F84CD87,
 122       0x7A584718, 0x7408DA17, 0xBC9F9ABC, 0xE94B7D8C,
 123       0xEC7AEC3A, 0xDB851DFA, 0x63094366, 0xC464C3D2,
 124       0xEF1C1847, 0x3215D908, 0xDD433B37, 0x24C2BA16,
 125       0x12A14D43, 0x2A65C451, 0x50940002, 0x133AE4DD,
 126       0x71DFF89E, 0x10314E55, 0x81AC77D6, 0x5F11199B,
 127       0x043556F1, 0xD7A3C76B, 0x3C11183B, 0x5924A509,
 128       0xF28FE6ED, 0x97F1FBFA, 0x9EBABF2C, 0x1E153C6E,
 129       0x86E34570, 0xEAE96FB1, 0x860E5E0A, 0x5A3E2AB3,
 130       0x771FE71C, 0x4E3D06FA, 0x2965DCB9, 0x99E71D0F,
 131       0x803E89D6, 0x5266C825, 0x2E4CC978, 0x9C10B36A,
 132       0xC6150EBA, 0x94E2EA78, 0xA5FC3C53, 0x1E0A2DF4,
 133       0xF2F74EA7, 0x361D2B3D, 0x1939260F, 0x19C27960,
 134       0x5223A708, 0xF71312B6, 0xEBADFE6E, 0xEAC31F66,
 135       0xE3BC4595, 0xA67BC883, 0xB17F37D1, 0x018CFF28,
 136       0xC332DDEF, 0xBE6C5AA5, 0x65582185, 0x68AB9802,
 137       0xEECEA50F, 0xDB2F953B, 0x2AEF7DAD, 0x5B6E2F84,
 138       0x1521B628, 0x29076170, 0xECDD4775, 0x619F1510,
 139       0x13CCA830, 0xEB61BD96, 0x0334FE1E, 0xAA0363CF,
 140       0xB5735C90, 0x4C70A239, 0xD59E9E0B, 0xCBAADE14,
 141       0xEECC86BC, 0x60622CA7, 0x9CAB5CAB, 0xB2F3846E,
 142       0x648B1EAF, 0x19BDF0CA, 0xA02369B9, 0x655ABB50,
 143       0x40685A32, 0x3C2AB4B3, 0x319EE9D5, 0xC021B8F7,
 144       0x9B540B19, 0x875FA099, 0x95F7997E, 0x623D7DA8,
 145       0xF837889A, 0x97E32D77, 0x11ED935F, 0x16681281,
 146       0x0E358829, 0xC7E61FD6, 0x96DEDFA1, 0x7858BA99,
 147       0x57F584A5, 0x1B227263, 0x9B83C3FF, 0x1AC24696,
 148       0xCDB30AEB, 0x532E3054, 0x8FD948E4, 0x6DBC3128,
 149       0x58EBF2EF, 0x34C6FFEA, 0xFE28ED61, 0xEE7C3C73,
 150       0x5D4A14D9, 0xE864B7E3, 0x42105D14, 0x203E13E0,
 151       0x45EEE2B6, 0xA3AAABEA, 0xDB6C4F15, 0xFACB4FD0,
 152       0xC742F442, 0xEF6ABBB5, 0x654F3B1D, 0x41CD2105,
 153       0xD81E799E, 0x86854DC7, 0xE44B476A, 0x3D816250,
 154       0xCF62A1F2, 0x5B8D2646, 0xFC8883A0, 0xC1C7B6A3,
 155       0x7F1524C3, 0x69CB7492, 0x47848A0B, 0x5692B285,
 156       0x095BBF00, 0xAD19489D, 0x1462B174, 0x23820E00,
 157       0x58428D2A, 0x0C55F5EA, 0x1DADF43E, 0x233F7061,
 158       0x3372F092, 0x8D937E41, 0xD65FECF1, 0x6C223BDB,
 159       0x7CDE3759, 0xCBEE7460, 0x4085F2A7, 0xCE77326E,
 160       0xA6078084, 0x19F8509E, 0xE8EFD855, 0x61D99735,
 161       0xA969A7AA, 0xC50C06C2, 0x5A04ABFC, 0x800BCADC,
 162       0x9E447A2E, 0xC3453484, 0xFDD56705, 0x0E1E9EC9,
 163       0xDB73DBD3, 0x105588CD, 0x675FDA79, 0xE3674340,
 164       0xC5C43465, 0x713E38D8, 0x3D28F89E, 0xF16DFF20,
 165       0x153E21E7, 0x8FB03D4A, 0xE6E39F2B, 0xDB83ADF7 },
 166     { 0xE93D5A68, 0x948140F7, 0xF64C261C, 0x94692934,
 167       0x411520F7, 0x7602D4F7, 0xBCF46B2E, 0xD4A20068,
 168       0xD4082471, 0x3320F46A, 0x43B7D4B7, 0x500061AF,
 169       0x1E39F62E, 0x97244546, 0x14214F74, 0xBF8B8840,
 170       0x4D95FC1D, 0x96B591AF, 0x70F4DDD3, 0x66A02F45,
 171       0xBFBC09EC, 0x03BD9785, 0x7FAC6DD0, 0x31CB8504,
 172       0x96EB27B3, 0x55FD3941, 0xDA2547E6, 0xABCA0A9A,
 173       0x28507825, 0x530429F4, 0x0A2C86DA, 0xE9B66DFB,
 174       0x68DC1462, 0xD7486900, 0x680EC0A4, 0x27A18DEE,
 175       0x4F3FFEA2, 0xE887AD8C, 0xB58CE006, 0x7AF4D6B6,
 176       0xAACE1E7C, 0xD3375FEC, 0xCE78A399, 0x406B2A42,
 177       0x20FE9E35, 0xD9F385B9, 0xEE39D7AB, 0x3B124E8B,
 178       0x1DC9FAF7, 0x4B6D1856, 0x26A36631, 0xEAE397B2,
 179       0x3A6EFA74, 0xDD5B4332, 0x6841E7F7, 0xCA7820FB,
 180       0xFB0AF54E, 0xD8FEB397, 0x454056AC, 0xBA489527,
 181       0x55533A3A, 0x20838D87, 0xFE6BA9B7, 0xD096954B,
 182       0x55A867BC, 0xA1159A58, 0xCCA92963, 0x99E1DB33,
 183       0xA62A4A56, 0x3F3125F9, 0x5EF47E1C, 0x9029317C,
 184       0xFDF8E802, 0x04272F70, 0x80BB155C, 0x05282CE3,
 185       0x95C11548, 0xE4C66D22, 0x48C1133F, 0xC70F86DC,
 186       0x07F9C9EE, 0x41041F0F, 0x404779A4, 0x5D886E17,
 187       0x325F51EB, 0xD59BC0D1, 0xF2BCC18F, 0x41113564,
 188       0x257B7834, 0x602A9C60, 0xDFF8E8A3, 0x1F636C1B,
 189       0x0E12B4C2, 0x02E1329E, 0xAF664FD1, 0xCAD18115,
 190       0x6B2395E0, 0x333E92E1, 0x3B240B62, 0xEEBEB922,
 191       0x85B2A20E, 0xE6BA0D99, 0xDE720C8C, 0x2DA2F728,
 192       0xD0127845, 0x95B794FD, 0x647D0862, 0xE7CCF5F0,
 193       0x5449A36F, 0x877D48FA, 0xC39DFD27, 0xF33E8D1E,
 194       0x0A476341, 0x992EFF74, 0x3A6F6EAB, 0xF4F8FD37,
 195       0xA812DC60, 0xA1EBDDF8, 0x991BE14C, 0xDB6E6B0D,
 196       0xC67B5510, 0x6D672C37, 0x2765D43B, 0xDCD0E804,
 197       0xF1290DC7, 0xCC00FFA3, 0xB5390F92, 0x690FED0B,
 198       0x667B9FFB, 0xCEDB7D9C, 0xA091CF0B, 0xD9155EA3,
 199       0xBB132F88, 0x515BAD24, 0x7B9479BF, 0x763BD6EB,
 200       0x37392EB3, 0xCC115979, 0x8026E297, 0xF42E312D,
 201       0x6842ADA7, 0xC66A2B3B, 0x12754CCC, 0x782EF11C,
 202       0x6A124237, 0xB79251E7, 0x06A1BBE6, 0x4BFB6350,
 203       0x1A6B1018, 0x11CAEDFA, 0x3D25BDD8, 0xE2E1C3C9,
 204       0x44421659, 0x0A121386, 0xD90CEC6E, 0xD5ABEA2A,
 205       0x64AF674E, 0xDA86A85F, 0xBEBFE988, 0x64E4C3FE,
 206       0x9DBC8057, 0xF0F7C086, 0x60787BF8, 0x6003604D,
 207       0xD1FD8346, 0xF6381FB0, 0x7745AE04, 0xD736FCCC,
 208       0x83426B33, 0xF01EAB71, 0xB0804187, 0x3C005E5F,
 209       0x77A057BE, 0xBDE8AE24, 0x55464299, 0xBF582E61,
 210       0x4E58F48F, 0xF2DDFDA2, 0xF474EF38, 0x8789BDC2,
 211       0x5366F9C3, 0xC8B38E74, 0xB475F255, 0x46FCD9B9,
 212       0x7AEB2661, 0x8B1DDF84, 0x846A0E79, 0x915F95E2,
 213       0x466E598E, 0x20B45770, 0x8CD55591, 0xC902DE4C,
 214       0xB90BACE1, 0xBB8205D0, 0x11A86248, 0x7574A99E,
 215       0xB77F19B6, 0xE0A9DC09, 0x662D09A1, 0xC4324633,
 216       0xE85A1F02, 0x09F0BE8C, 0x4A99A025, 0x1D6EFE10,
 217       0x1AB93D1D, 0x0BA5A4DF, 0xA186F20F, 0x2868F169,
 218       0xDCB7DA83, 0x573906FE, 0xA1E2CE9B, 0x4FCD7F52,
 219       0x50115E01, 0xA70683FA, 0xA002B5C4, 0x0DE6D027,
 220       0x9AF88C27, 0x773F8641, 0xC3604C06, 0x61A806B5,
 221       0xF0177A28, 0xC0F586E0, 0x006058AA, 0x30DC7D62,
 222       0x11E69ED7, 0x2338EA63, 0x53C2DD94, 0xC2C21634,
 223       0xBBCBEE56, 0x90BCB6DE, 0xEBFC7DA1, 0xCE591D76,
 224       0x6F05E409, 0x4B7C0188, 0x39720A3D, 0x7C927C24,
 225       0x86E3725F, 0x724D9DB9, 0x1AC15BB4, 0xD39EB8FC,
 226       0xED545578, 0x08FCA5B5, 0xD83D7CD3, 0x4DAD0FC4,
 227       0x1E50EF5E, 0xB161E6F8, 0xA28514D9, 0x6C51133C,
 228       0x6FD5C7E7, 0x56E14EC4, 0x362ABFCE, 0xDDC6C837,
 229       0xD79A3234, 0x92638212, 0x670EFA8E, 0x406000E0 },
 230     { 0x3A39CE37, 0xD3FAF5CF, 0xABC27737, 0x5AC52D1B,
 231       0x5CB0679E, 0x4FA33742, 0xD3822740, 0x99BC9BBE,
 232       0xD5118E9D, 0xBF0F7315, 0xD62D1C7E, 0xC700C47B,
 233       0xB78C1B6B, 0x21A19045, 0xB26EB1BE, 0x6A366EB4,
 234       0x5748AB2F, 0xBC946E79, 0xC6A376D2, 0x6549C2C8,
 235       0x530FF8EE, 0x468DDE7D, 0xD5730A1D, 0x4CD04DC6,
 236       0x2939BBDB, 0xA9BA4650, 0xAC9526E8, 0xBE5EE304,
 237       0xA1FAD5F0, 0x6A2D519A, 0x63EF8CE2, 0x9A86EE22,
 238       0xC089C2B8, 0x43242EF6, 0xA51E03AA, 0x9CF2D0A4,
 239       0x83C061BA, 0x9BE96A4D, 0x8FE51550, 0xBA645BD6,
 240       0x2826A2F9, 0xA73A3AE1, 0x4BA99586, 0xEF5562E9,
 241       0xC72FEFD3, 0xF752F7DA, 0x3F046F69, 0x77FA0A59,
 242       0x80E4A915, 0x87B08601, 0x9B09E6AD, 0x3B3EE593,
 243       0xE990FD5A, 0x9E34D797, 0x2CF0B7D9, 0x022B8B51,
 244       0x96D5AC3A, 0x017DA67D, 0xD1CF3ED6, 0x7C7D2D28,
 245       0x1F9F25CF, 0xADF2B89B, 0x5AD6B472, 0x5A88F54C,
 246       0xE029AC71, 0xE019A5E6, 0x47B0ACFD, 0xED93FA9B,
 247       0xE8D3C48D, 0x283B57CC, 0xF8D56629, 0x79132E28,
 248       0x785F0191, 0xED756055, 0xF7960E44, 0xE3D35E8C,
 249       0x15056DD4, 0x88F46DBA, 0x03A16125, 0x0564F0BD,
 250       0xC3EB9E15, 0x3C9057A2, 0x97271AEC, 0xA93A072A,
 251       0x1B3F6D9B, 0x1E6321F5, 0xF59C66FB, 0x26DCF319,
 252       0x7533D928, 0xB155FDF5, 0x03563482, 0x8ABA3CBB,
 253       0x28517711, 0xC20AD9F8, 0xABCC5167, 0xCCAD925F,
 254       0x4DE81751, 0x3830DC8E, 0x379D5862, 0x9320F991,
 255       0xEA7A90C2, 0xFB3E7BCE, 0x5121CE64, 0x774FBE32,
 256       0xA8B6E37E, 0xC3293D46, 0x48DE5369, 0x6413E680,
 257       0xA2AE0810, 0xDD6DB224, 0x69852DFD, 0x09072166,
 258       0xB39A460A, 0x6445C0DD, 0x586CDECF, 0x1C20C8AE,
 259       0x5BBEF7DD, 0x1B588D40, 0xCCD2017F, 0x6BB4E3BB,
 260       0xDDA26A7E, 0x3A59FF45, 0x3E350A44, 0xBCB4CDD5,
 261       0x72EACEA8, 0xFA6484BB, 0x8D6612AE, 0xBF3C6F47,
 262       0xD29BE463, 0x542F5D9E, 0xAEC2771B, 0xF64E6370,
 263       0x740E0D8D, 0xE75B1357, 0xF8721671, 0xAF537D5D,
 264       0x4040CB08, 0x4EB4E2CC, 0x34D2466A, 0x0115AF84,
 265       0xE1B00428, 0x95983A1D, 0x06B89FB4, 0xCE6EA048,
 266       0x6F3F3B82, 0x3520AB82, 0x011A1D4B, 0x277227F8,
 267       0x611560B1, 0xE7933FDC, 0xBB3A792B, 0x344525BD,
 268       0xA08839E1, 0x51CE794B, 0x2F32C9B7, 0xA01FBAC9,
 269       0xE01CC87E, 0xBCC7D1F6, 0xCF0111C3, 0xA1E8AAC7,
 270       0x1A908749, 0xD44FBD9A, 0xD0DADECB, 0xD50ADA38,
 271       0x0339C32A, 0xC6913667, 0x8DF9317C, 0xE0B12B4F,
 272       0xF79E59B7, 0x43F5BB3A, 0xF2D519FF, 0x27D9459C,
 273       0xBF97222C, 0x15E6FC2A, 0x0F91FC71, 0x9B941525,
 274       0xFAE59361, 0xCEB69CEB, 0xC2A86459, 0x12BAA8D1,
 275       0xB6C1075E, 0xE3056A0C, 0x10D25065, 0xCB03A442,
 276       0xE0EC6E0E, 0x1698DB3B, 0x4C98A0BE, 0x3278E964,
 277       0x9F1F9532, 0xE0D392DF, 0xD3A0342B, 0x8971F21E,
 278       0x1B0A7441, 0x4BA3348C, 0xC5BE7120, 0xC37632D8,
 279       0xDF359F8D, 0x9B992F2E, 0xE60B6F47, 0x0FE3F11D,
 280       0xE54CDA54, 0x1EDAD891, 0xCE6279CF, 0xCD3E7E6F,
 281       0x1618B166, 0xFD2C1D05, 0x848FD2C5, 0xF6FB2299,
 282       0xF523F357, 0xA6327623, 0x93A83531, 0x56CCCD02,
 283       0xACF08162, 0x5A75EBB5, 0x6E163697, 0x88D273CC,
 284       0xDE966292, 0x81B949D0, 0x4C50901B, 0x71C65614,
 285       0xE6C6C7BD, 0x327A140A, 0x45E1D006, 0xC3F27B9A,
 286       0xC9AA53FD, 0x62A80F00, 0xBB25BFE2, 0x35BDD2F6,
 287       0x71126905, 0xB2040222, 0xB6CBCF7C, 0xCD769C2B,
 288       0x53113EC0, 0x1640E3D3, 0x38ABBD60, 0x2547ADF0,
 289       0xBA38209C, 0xF746CE76, 0x77AFA1C5, 0x20756060,
 290       0x85CBFE4E, 0x8AE88DD8, 0x7AAAF9B0, 0x4CF9AA7E,
 291       0x1948C25C, 0x02FB8A8C, 0x01C36AE4, 0xD6EBE1F9,
 292       0x90D4F869, 0xA65CDEA0, 0x3F09252D, 0xC208E69F,
 293       0xB74E6132, 0xCE77E25B, 0x578FDFE3, 0x3AC372E6 }
 294 };
 295
 296 #define F(Xl, Xr, P) \
 297     Xr ^=((( ctx->s[0][ Xl >> 24        ] \
 298            + ctx->s[1][(Xl >> 16) & 0xFF])\
 299            ^ ctx->s[2][(Xl >>  8) & 0xFF])\
 300            + ctx->s[3][ Xl        & 0xFF])\
 301            ^ P;
 302
 303 av_cold void av_blowfish_init(AVBlowfish *ctx, const uint8_t *key, int key_len)
 304 {
 305     uint32_t data, data_l, data_r;
 306     int i, j, k;
 307
 308     memcpy(ctx->s, orig_s, sizeof(orig_s));
 309
 310     j = 0;
 311     for (i = 0; i < AV_BF_ROUNDS + 2; ++i) {
 312         data = 0;
 313         for (k = 0; k < 4; k++) {
 314             data = (data << 8) | key[j];
 315             if (++j >= key_len)
 316                 j = 0;
 317         }
 318         ctx->p[i] = orig_p[i] ^ data;
 319     }
 320
 321     data_l = data_r = 0;
 322
 323     for (i = 0; i < AV_BF_ROUNDS + 2; i += 2) {
 324         av_blowfish_crypt_ecb(ctx, &data_l, &data_r, 0);
 325         ctx->p[i]     = data_l;
 326         ctx->p[i + 1] = data_r;
 327     }
 328
 329     for (i = 0; i < 4; ++i) {
 330         for (j = 0; j < 256; j += 2) {
 331             av_blowfish_crypt_ecb(ctx, &data_l, &data_r, 0);
 332             ctx->s[i][j]     = data_l;
 333             ctx->s[i][j + 1] = data_r;
 334         }
 335     }
 336 }
 337
 338 void av_blowfish_crypt_ecb(AVBlowfish *ctx, uint32_t *xl, uint32_t *xr,
 339                            int decrypt)
 340 {
 341     uint32_t Xl, Xr;
 342     int i;
 343
 344     Xl = *xl;
 345     Xr = *xr;
 346
 347     if (decrypt) {
 348         Xl ^= ctx->p[AV_BF_ROUNDS + 1];
 349         for (i = AV_BF_ROUNDS; i > 0; i-=2) {
 350             F(Xl, Xr, ctx->p[i  ]);
 351             F(Xr, Xl, ctx->p[i-1]);
 352         }
 353
 354         Xr ^= ctx->p[0];
 355     } else {
 356         Xl ^= ctx->p[0];
 357         for (i = 1; i < AV_BF_ROUNDS+1; i+=2){
 358             F(Xl, Xr, ctx->p[i  ]);
 359             F(Xr, Xl, ctx->p[i+1]);
 360         }
 361
 362         Xr ^= ctx->p[AV_BF_ROUNDS + 1];
 363     }
 364
 365     *xl = Xr;
 366     *xr = Xl;
 367 }
 368
 369 void av_blowfish_crypt(AVBlowfish *ctx, uint8_t *dst, const uint8_t *src,
 370                        int count, uint8_t *iv, int decrypt)
 371 {
 372     uint32_t v0, v1;
 373     int i;
 374
 375     if (decrypt) {
 376         while (count--) {
 377             v0 = AV_RB32(src);
 378             v1 = AV_RB32(src + 4);
 379
 380             av_blowfish_crypt_ecb(ctx, &v0, &v1, decrypt);
 381
 382             if (iv) {
 383                 v0 ^= AV_RB32(iv);
 384                 v1 ^= AV_RB32(iv + 4);
 385                 memcpy(iv, src, 8);
 386             }
 387
 388             AV_WB32(dst, v0);
 389             AV_WB32(dst + 4, v1);
 390
 391             src   += 8;
 392             dst   += 8;
 393         }
 394     } else {
 395         while (count--) {
 396             if (iv) {
 397                 for (i = 0; i < 8; i++)
 398                     dst[i] = src[i] ^ iv[i];
 399                 v0 = AV_RB32(dst);
 400                 v1 = AV_RB32(dst + 4);
 401             } else {
 402                 v0 = AV_RB32(src);
 403                 v1 = AV_RB32(src + 4);
 404             }
 405
 406             av_blowfish_crypt_ecb(ctx, &v0, &v1, decrypt);
 407
 408             AV_WB32(dst, v0);
 409             AV_WB32(dst + 4, v1);
 410
 411             if (iv)
 412                 memcpy(iv, dst, 8);
 413
 414             src   += 8;
 415             dst   += 8;
 416         }
 417     }
 418 }
 419
 420 #ifdef TEST
 421 #include <stdio.h>
 422
 423 #define NUM_VARIABLE_KEY_TESTS 34
 424
 425 /* plaintext bytes -- left halves */
 426 static const uint32_t plaintext_l[NUM_VARIABLE_KEY_TESTS] = {
 427     0x00000000, 0xFFFFFFFF, 0x10000000, 0x11111111, 0x11111111,
 428     0x01234567, 0x00000000, 0x01234567, 0x01A1D6D0, 0x5CD54CA8,
 429     0x0248D438, 0x51454B58, 0x42FD4430, 0x059B5E08, 0x0756D8E0,
 430     0x762514B8, 0x3BDD1190, 0x26955F68, 0x164D5E40, 0x6B056E18,
 431     0x004BD6EF, 0x480D3900, 0x437540C8, 0x072D43A0, 0x02FE5577,
 432     0x1D9D5C50, 0x30553228, 0x01234567, 0x01234567, 0x01234567,
 433     0xFFFFFFFF, 0x00000000, 0x00000000, 0xFFFFFFFF
 434 };
 435
 436 /* plaintext bytes -- right halves */
 437 static const uint32_t plaintext_r[NUM_VARIABLE_KEY_TESTS] = {
 438     0x00000000, 0xFFFFFFFF, 0x00000001, 0x11111111, 0x11111111,
 439     0x89ABCDEF, 0x00000000, 0x89ABCDEF, 0x39776742, 0x3DEF57DA,
 440     0x06F67172, 0x2DDF440A, 0x59577FA2, 0x51CF143A, 0x774761D2,
 441     0x29BF486A, 0x49372802, 0x35AF609A, 0x4F275232, 0x759F5CCA,
 442     0x09176062, 0x6EE762F2, 0x698F3CFA, 0x77075292, 0x8117F12A,
 443     0x18F728C2, 0x6D6F295A, 0x89ABCDEF, 0x89ABCDEF, 0x89ABCDEF,
 444     0xFFFFFFFF, 0x00000000, 0x00000000, 0xFFFFFFFF
 445 };
 446
 447 /* key bytes for variable key tests */
 448 static const uint8_t variable_key[NUM_VARIABLE_KEY_TESTS][8] = {
 449     { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
 450     { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF },
 451     { 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
 452     { 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11 },
 453     { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF },
 454     { 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11 },
 455     { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
 456     { 0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10 },
 457     { 0x7C, 0xA1, 0x10, 0x45, 0x4A, 0x1A, 0x6E, 0x57 },
 458     { 0x01, 0x31, 0xD9, 0x61, 0x9D, 0xC1, 0x37, 0x6E },
 459     { 0x07, 0xA1, 0x13, 0x3E, 0x4A, 0x0B, 0x26, 0x86 },
 460     { 0x38, 0x49, 0x67, 0x4C, 0x26, 0x02, 0x31, 0x9E },
 461     { 0x04, 0xB9, 0x15, 0xBA, 0x43, 0xFE, 0xB5, 0xB6 },
 462     { 0x01, 0x13, 0xB9, 0x70, 0xFD, 0x34, 0xF2, 0xCE },
 463     { 0x01, 0x70, 0xF1, 0x75, 0x46, 0x8F, 0xB5, 0xE6 },
 464     { 0x43, 0x29, 0x7F, 0xAD, 0x38, 0xE3, 0x73, 0xFE },
 465     { 0x07, 0xA7, 0x13, 0x70, 0x45, 0xDA, 0x2A, 0x16 },
 466     { 0x04, 0x68, 0x91, 0x04, 0xC2, 0xFD, 0x3B, 0x2F },
 467     { 0x37, 0xD0, 0x6B, 0xB5, 0x16, 0xCB, 0x75, 0x46 },
 468     { 0x1F, 0x08, 0x26, 0x0D, 0x1A, 0xC2, 0x46, 0x5E },
 469     { 0x58, 0x40, 0x23, 0x64, 0x1A, 0xBA, 0x61, 0x76 },
 470     { 0x02, 0x58, 0x16, 0x16, 0x46, 0x29, 0xB0, 0x07 },
 471     { 0x49, 0x79, 0x3E, 0xBC, 0x79, 0xB3, 0x25, 0x8F },
 472     { 0x4F, 0xB0, 0x5E, 0x15, 0x15, 0xAB, 0x73, 0xA7 },
 473     { 0x49, 0xE9, 0x5D, 0x6D, 0x4C, 0xA2, 0x29, 0xBF },
 474     { 0x01, 0x83, 0x10, 0xDC, 0x40, 0x9B, 0x26, 0xD6 },
 475     { 0x1C, 0x58, 0x7F, 0x1C, 0x13, 0x92, 0x4F, 0xEF },
 476     { 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01 },
 477     { 0x1F, 0x1F, 0x1F, 0x1F, 0x0E, 0x0E, 0x0E, 0x0E },
 478     { 0xE0, 0xFE, 0xE0, 0xFE, 0xF1, 0xFE, 0xF1, 0xFE },
 479     { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
 480     { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF },
 481     { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF },
 482     { 0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10 }
 483 };
 484
 485 /* ciphertext bytes -- left halves */
 486 static const uint32_t ciphertext_l[NUM_VARIABLE_KEY_TESTS] = {
 487     0x4EF99745, 0x51866FD5, 0x7D856F9A, 0x2466DD87, 0x61F9C380,
 488     0x7D0CC630, 0x4EF99745, 0x0ACEAB0F, 0x59C68245, 0xB1B8CC0B,
 489     0x1730E577, 0xA25E7856, 0x353882B1, 0x48F4D088, 0x432193B7,
 490     0x13F04154, 0x2EEDDA93, 0xD887E039, 0x5F99D04F, 0x4A057A3B,
 491     0x452031C1, 0x7555AE39, 0x53C55F9C, 0x7A8E7BFA, 0xCF9C5D7A,
 492     0xD1ABB290, 0x55CB3774, 0xFA34EC48, 0xA7907951, 0xC39E072D,
 493     0x014933E0, 0xF21E9A77, 0x24594688, 0x6B5C5A9C
 494 };
 495
 496 /* ciphertext bytes -- right halves */
 497 static const uint32_t ciphertext_r[NUM_VARIABLE_KEY_TESTS] = {
 498     0x6198DD78, 0xB85ECB8A, 0x613063F2, 0x8B963C9D, 0x2281B096,
 499     0xAFDA1EC7, 0x6198DD78, 0xC6A0A28D, 0xEB05282B, 0x250F09A0,
 500     0x8BEA1DA4, 0xCF2651EB, 0x09CE8F1A, 0x4C379918, 0x8951FC98,
 501     0xD69D1AE5, 0xFFD39C79, 0x3C2DA6E3, 0x5B163969, 0x24D3977B,
 502     0xE4FADA8E, 0xF59B87BD, 0xB49FC019, 0x937E89A3, 0x4986ADB5,
 503     0x658BC778, 0xD13EF201, 0x47B268B2, 0x08EA3CAE, 0x9FAC631D,
 504     0xCDAFF6E4, 0xB71C49BC, 0x5754369A, 0x5D9E0A5A
 505 };
 506
 507 /* plaintext bytes */
 508 static const uint8_t plaintext[8] = "BLOWFISH";
 509
 510 static const uint8_t plaintext2[16] = "BLOWFISHBLOWFISH";
 511
 512 /* ciphertext bytes */
 513 static const uint8_t ciphertext[8] = {
 514     0x32, 0x4E, 0xD0, 0xFE, 0xF4, 0x13, 0xA2, 0x03
 515 };
 516
 517 static const uint8_t ciphertext2[16] = {
 518     0x53, 0x00, 0x40, 0x06, 0x63, 0xf2, 0x1d, 0x99,
 519     0x3b, 0x9b, 0x27, 0x64, 0x46, 0xfd, 0x20, 0xc1,
 520 };
 521
 522 #define IV "blowfish"
 523
 524 static void test_blowfish(AVBlowfish *ctx, uint8_t *dst, const uint8_t *src,
 525                           const uint8_t *ref, int len, uint8_t *iv, int dir,
 526                           const char *test)
 527 {
 528     av_blowfish_crypt(ctx, dst, src, len, iv, dir);
 529     if (memcmp(dst, ref, 8*len)) {
 530         int i;
 531         printf("%s failed\ngot      ", test);
 532         for (i = 0; i < 8*len; i++)
 533             printf("%02x ", dst[i]);
 534         printf("\nexpected ");
 535         for (i = 0; i < 8*len; i++)
 536             printf("%02x ", ref[i]);
 537         printf("\n");
 538         exit(1);
 539     }
 540 }
 541
 542 int main(void)
 543 {
 544     AVBlowfish ctx;
 545     uint32_t tmptext_l[NUM_VARIABLE_KEY_TESTS];
 546     uint32_t tmptext_r[NUM_VARIABLE_KEY_TESTS];
 547     uint8_t tmp[16], iv[8];
 548     int i;
 549
 550     av_blowfish_init(&ctx, "abcdefghijklmnopqrstuvwxyz", 26);
 551
 552     test_blowfish(&ctx, tmp, plaintext, ciphertext, 1, NULL, 0, "encryption");
 553     test_blowfish(&ctx, tmp, ciphertext, plaintext, 1, NULL, 1, "decryption");
 554     test_blowfish(&ctx, tmp, tmp, ciphertext, 1, NULL, 0, "Inplace encryption");
 555     test_blowfish(&ctx, tmp, tmp, plaintext,  1, NULL, 1, "Inplace decryption");
 556     memcpy(iv, IV, 8);
 557     test_blowfish(&ctx, tmp, plaintext2, ciphertext2, 2, iv, 0, "CBC encryption");
 558     memcpy(iv, IV, 8);
 559     test_blowfish(&ctx, tmp, ciphertext2, plaintext2, 2, iv, 1, "CBC decryption");
 560     memcpy(iv, IV, 8);
 561     test_blowfish(&ctx, tmp, tmp, ciphertext2, 2, iv, 0, "Inplace CBC encryption");
 562     memcpy(iv, IV, 8);
 563     test_blowfish(&ctx, tmp, tmp, plaintext2,  2, iv, 1, "Inplace CBC decryption");
 564
 565     memcpy(tmptext_l, plaintext_l, sizeof(*plaintext_l) * NUM_VARIABLE_KEY_TESTS);
 566     memcpy(tmptext_r, plaintext_r, sizeof(*plaintext_r) * NUM_VARIABLE_KEY_TESTS);
 567
 568     for (i = 0; i < NUM_VARIABLE_KEY_TESTS; i++) {
 569         av_blowfish_init(&ctx, variable_key[i], 8);
 570
 571         av_blowfish_crypt_ecb(&ctx, &tmptext_l[i], &tmptext_r[i], 0);
 572         if (tmptext_l[i] != ciphertext_l[i] || tmptext_r[i] != ciphertext_r[i]) {
 573             printf("Test encryption failed.\n");
 574             return 1;
 575         }
 576
 577         av_blowfish_crypt_ecb(&ctx, &tmptext_l[i], &tmptext_r[i], 1);
 578         if (tmptext_l[i] != plaintext_l[i] || tmptext_r[i] != plaintext_r[i]) {
 579             printf("Test decryption failed.\n");
 580             return 1;
 581         }
 582     }
 583     printf("Test encryption/decryption success.\n");
 584
 585     return 0;
 586 }
 587
 588 #endif