LCOV - code coverage report
Current view: top level - libavutil - blowfish.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 70 70 100.0 %
Date: 2017-12-15 02:19:58 Functions: 4 4 100.0 %

          Line data    Source code
       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 "mem.h"
      28             : #include "blowfish.h"
      29             : 
      30             : static const uint32_t orig_p[AV_BF_ROUNDS + 2] = {
      31             :     0x243F6A88, 0x85A308D3, 0x13198A2E, 0x03707344,
      32             :     0xA4093822, 0x299F31D0, 0x082EFA98, 0xEC4E6C89,
      33             :     0x452821E6, 0x38D01377, 0xBE5466CF, 0x34E90C6C,
      34             :     0xC0AC29B7, 0xC97C50DD, 0x3F84D5B5, 0xB5470917,
      35             :     0x9216D5D9, 0x8979FB1B
      36             : };
      37             : 
      38             : static const uint32_t orig_s[4][256] = {
      39             :     { 0xD1310BA6, 0x98DFB5AC, 0x2FFD72DB, 0xD01ADFB7,
      40             :       0xB8E1AFED, 0x6A267E96, 0xBA7C9045, 0xF12C7F99,
      41             :       0x24A19947, 0xB3916CF7, 0x0801F2E2, 0x858EFC16,
      42             :       0x636920D8, 0x71574E69, 0xA458FEA3, 0xF4933D7E,
      43             :       0x0D95748F, 0x728EB658, 0x718BCD58, 0x82154AEE,
      44             :       0x7B54A41D, 0xC25A59B5, 0x9C30D539, 0x2AF26013,
      45             :       0xC5D1B023, 0x286085F0, 0xCA417918, 0xB8DB38EF,
      46             :       0x8E79DCB0, 0x603A180E, 0x6C9E0E8B, 0xB01E8A3E,
      47             :       0xD71577C1, 0xBD314B27, 0x78AF2FDA, 0x55605C60,
      48             :       0xE65525F3, 0xAA55AB94, 0x57489862, 0x63E81440,
      49             :       0x55CA396A, 0x2AAB10B6, 0xB4CC5C34, 0x1141E8CE,
      50             :       0xA15486AF, 0x7C72E993, 0xB3EE1411, 0x636FBC2A,
      51             :       0x2BA9C55D, 0x741831F6, 0xCE5C3E16, 0x9B87931E,
      52             :       0xAFD6BA33, 0x6C24CF5C, 0x7A325381, 0x28958677,
      53             :       0x3B8F4898, 0x6B4BB9AF, 0xC4BFE81B, 0x66282193,
      54             :       0x61D809CC, 0xFB21A991, 0x487CAC60, 0x5DEC8032,
      55             :       0xEF845D5D, 0xE98575B1, 0xDC262302, 0xEB651B88,
      56             :       0x23893E81, 0xD396ACC5, 0x0F6D6FF3, 0x83F44239,
      57             :       0x2E0B4482, 0xA4842004, 0x69C8F04A, 0x9E1F9B5E,
      58             :       0x21C66842, 0xF6E96C9A, 0x670C9C61, 0xABD388F0,
      59             :       0x6A51A0D2, 0xD8542F68, 0x960FA728, 0xAB5133A3,
      60             :       0x6EEF0B6C, 0x137A3BE4, 0xBA3BF050, 0x7EFB2A98,
      61             :       0xA1F1651D, 0x39AF0176, 0x66CA593E, 0x82430E88,
      62             :       0x8CEE8619, 0x456F9FB4, 0x7D84A5C3, 0x3B8B5EBE,
      63             :       0xE06F75D8, 0x85C12073, 0x401A449F, 0x56C16AA6,
      64             :       0x4ED3AA62, 0x363F7706, 0x1BFEDF72, 0x429B023D,
      65             :       0x37D0D724, 0xD00A1248, 0xDB0FEAD3, 0x49F1C09B,
      66             :       0x075372C9, 0x80991B7B, 0x25D479D8, 0xF6E8DEF7,
      67             :       0xE3FE501A, 0xB6794C3B, 0x976CE0BD, 0x04C006BA,
      68             :       0xC1A94FB6, 0x409F60C4, 0x5E5C9EC2, 0x196A2463,
      69             :       0x68FB6FAF, 0x3E6C53B5, 0x1339B2EB, 0x3B52EC6F,
      70             :       0x6DFC511F, 0x9B30952C, 0xCC814544, 0xAF5EBD09,
      71             :       0xBEE3D004, 0xDE334AFD, 0x660F2807, 0x192E4BB3,
      72             :       0xC0CBA857, 0x45C8740F, 0xD20B5F39, 0xB9D3FBDB,
      73             :       0x5579C0BD, 0x1A60320A, 0xD6A100C6, 0x402C7279,
      74             :       0x679F25FE, 0xFB1FA3CC, 0x8EA5E9F8, 0xDB3222F8,
      75             :       0x3C7516DF, 0xFD616B15, 0x2F501EC8, 0xAD0552AB,
      76             :       0x323DB5FA, 0xFD238760, 0x53317B48, 0x3E00DF82,
      77             :       0x9E5C57BB, 0xCA6F8CA0, 0x1A87562E, 0xDF1769DB,
      78             :       0xD542A8F6, 0x287EFFC3, 0xAC6732C6, 0x8C4F5573,
      79             :       0x695B27B0, 0xBBCA58C8, 0xE1FFA35D, 0xB8F011A0,
      80             :       0x10FA3D98, 0xFD2183B8, 0x4AFCB56C, 0x2DD1D35B,
      81             :       0x9A53E479, 0xB6F84565, 0xD28E49BC, 0x4BFB9790,
      82             :       0xE1DDF2DA, 0xA4CB7E33, 0x62FB1341, 0xCEE4C6E8,
      83             :       0xEF20CADA, 0x36774C01, 0xD07E9EFE, 0x2BF11FB4,
      84             :       0x95DBDA4D, 0xAE909198, 0xEAAD8E71, 0x6B93D5A0,
      85             :       0xD08ED1D0, 0xAFC725E0, 0x8E3C5B2F, 0x8E7594B7,
      86             :       0x8FF6E2FB, 0xF2122B64, 0x8888B812, 0x900DF01C,
      87             :       0x4FAD5EA0, 0x688FC31C, 0xD1CFF191, 0xB3A8C1AD,
      88             :       0x2F2F2218, 0xBE0E1777, 0xEA752DFE, 0x8B021FA1,
      89             :       0xE5A0CC0F, 0xB56F74E8, 0x18ACF3D6, 0xCE89E299,
      90             :       0xB4A84FE0, 0xFD13E0B7, 0x7CC43B81, 0xD2ADA8D9,
      91             :       0x165FA266, 0x80957705, 0x93CC7314, 0x211A1477,
      92             :       0xE6AD2065, 0x77B5FA86, 0xC75442F5, 0xFB9D35CF,
      93             :       0xEBCDAF0C, 0x7B3E89A0, 0xD6411BD3, 0xAE1E7E49,
      94             :       0x00250E2D, 0x2071B35E, 0x226800BB, 0x57B8E0AF,
      95             :       0x2464369B, 0xF009B91E, 0x5563911D, 0x59DFA6AA,
      96             :       0x78C14389, 0xD95A537F, 0x207D5BA2, 0x02E5B9C5,
      97             :       0x83260376, 0x6295CFA9, 0x11C81968, 0x4E734A41,
      98             :       0xB3472DCA, 0x7B14A94A, 0x1B510052, 0x9A532915,
      99             :       0xD60F573F, 0xBC9BC6E4, 0x2B60A476, 0x81E67400,
     100             :       0x08BA6FB5, 0x571BE91F, 0xF296EC6B, 0x2A0DD915,
     101             :       0xB6636521, 0xE7B9F9B6, 0xFF34052E, 0xC5855664,
     102             :       0x53B02D5D, 0xA99F8FA1, 0x08BA4799, 0x6E85076A },
     103             :     { 0x4B7A70E9, 0xB5B32944, 0xDB75092E, 0xC4192623,
     104             :       0xAD6EA6B0, 0x49A7DF7D, 0x9CEE60B8, 0x8FEDB266,
     105             :       0xECAA8C71, 0x699A17FF, 0x5664526C, 0xC2B19EE1,
     106             :       0x193602A5, 0x75094C29, 0xA0591340, 0xE4183A3E,
     107             :       0x3F54989A, 0x5B429D65, 0x6B8FE4D6, 0x99F73FD6,
     108             :       0xA1D29C07, 0xEFE830F5, 0x4D2D38E6, 0xF0255DC1,
     109             :       0x4CDD2086, 0x8470EB26, 0x6382E9C6, 0x021ECC5E,
     110             :       0x09686B3F, 0x3EBAEFC9, 0x3C971814, 0x6B6A70A1,
     111             :       0x687F3584, 0x52A0E286, 0xB79C5305, 0xAA500737,
     112             :       0x3E07841C, 0x7FDEAE5C, 0x8E7D44EC, 0x5716F2B8,
     113             :       0xB03ADA37, 0xF0500C0D, 0xF01C1F04, 0x0200B3FF,
     114             :       0xAE0CF51A, 0x3CB574B2, 0x25837A58, 0xDC0921BD,
     115             :       0xD19113F9, 0x7CA92FF6, 0x94324773, 0x22F54701,
     116             :       0x3AE5E581, 0x37C2DADC, 0xC8B57634, 0x9AF3DDA7,
     117             :       0xA9446146, 0x0FD0030E, 0xECC8C73E, 0xA4751E41,
     118             :       0xE238CD99, 0x3BEA0E2F, 0x3280BBA1, 0x183EB331,
     119             :       0x4E548B38, 0x4F6DB908, 0x6F420D03, 0xF60A04BF,
     120             :       0x2CB81290, 0x24977C79, 0x5679B072, 0xBCAF89AF,
     121             :       0xDE9A771F, 0xD9930810, 0xB38BAE12, 0xDCCF3F2E,
     122             :       0x5512721F, 0x2E6B7124, 0x501ADDE6, 0x9F84CD87,
     123             :       0x7A584718, 0x7408DA17, 0xBC9F9ABC, 0xE94B7D8C,
     124             :       0xEC7AEC3A, 0xDB851DFA, 0x63094366, 0xC464C3D2,
     125             :       0xEF1C1847, 0x3215D908, 0xDD433B37, 0x24C2BA16,
     126             :       0x12A14D43, 0x2A65C451, 0x50940002, 0x133AE4DD,
     127             :       0x71DFF89E, 0x10314E55, 0x81AC77D6, 0x5F11199B,
     128             :       0x043556F1, 0xD7A3C76B, 0x3C11183B, 0x5924A509,
     129             :       0xF28FE6ED, 0x97F1FBFA, 0x9EBABF2C, 0x1E153C6E,
     130             :       0x86E34570, 0xEAE96FB1, 0x860E5E0A, 0x5A3E2AB3,
     131             :       0x771FE71C, 0x4E3D06FA, 0x2965DCB9, 0x99E71D0F,
     132             :       0x803E89D6, 0x5266C825, 0x2E4CC978, 0x9C10B36A,
     133             :       0xC6150EBA, 0x94E2EA78, 0xA5FC3C53, 0x1E0A2DF4,
     134             :       0xF2F74EA7, 0x361D2B3D, 0x1939260F, 0x19C27960,
     135             :       0x5223A708, 0xF71312B6, 0xEBADFE6E, 0xEAC31F66,
     136             :       0xE3BC4595, 0xA67BC883, 0xB17F37D1, 0x018CFF28,
     137             :       0xC332DDEF, 0xBE6C5AA5, 0x65582185, 0x68AB9802,
     138             :       0xEECEA50F, 0xDB2F953B, 0x2AEF7DAD, 0x5B6E2F84,
     139             :       0x1521B628, 0x29076170, 0xECDD4775, 0x619F1510,
     140             :       0x13CCA830, 0xEB61BD96, 0x0334FE1E, 0xAA0363CF,
     141             :       0xB5735C90, 0x4C70A239, 0xD59E9E0B, 0xCBAADE14,
     142             :       0xEECC86BC, 0x60622CA7, 0x9CAB5CAB, 0xB2F3846E,
     143             :       0x648B1EAF, 0x19BDF0CA, 0xA02369B9, 0x655ABB50,
     144             :       0x40685A32, 0x3C2AB4B3, 0x319EE9D5, 0xC021B8F7,
     145             :       0x9B540B19, 0x875FA099, 0x95F7997E, 0x623D7DA8,
     146             :       0xF837889A, 0x97E32D77, 0x11ED935F, 0x16681281,
     147             :       0x0E358829, 0xC7E61FD6, 0x96DEDFA1, 0x7858BA99,
     148             :       0x57F584A5, 0x1B227263, 0x9B83C3FF, 0x1AC24696,
     149             :       0xCDB30AEB, 0x532E3054, 0x8FD948E4, 0x6DBC3128,
     150             :       0x58EBF2EF, 0x34C6FFEA, 0xFE28ED61, 0xEE7C3C73,
     151             :       0x5D4A14D9, 0xE864B7E3, 0x42105D14, 0x203E13E0,
     152             :       0x45EEE2B6, 0xA3AAABEA, 0xDB6C4F15, 0xFACB4FD0,
     153             :       0xC742F442, 0xEF6ABBB5, 0x654F3B1D, 0x41CD2105,
     154             :       0xD81E799E, 0x86854DC7, 0xE44B476A, 0x3D816250,
     155             :       0xCF62A1F2, 0x5B8D2646, 0xFC8883A0, 0xC1C7B6A3,
     156             :       0x7F1524C3, 0x69CB7492, 0x47848A0B, 0x5692B285,
     157             :       0x095BBF00, 0xAD19489D, 0x1462B174, 0x23820E00,
     158             :       0x58428D2A, 0x0C55F5EA, 0x1DADF43E, 0x233F7061,
     159             :       0x3372F092, 0x8D937E41, 0xD65FECF1, 0x6C223BDB,
     160             :       0x7CDE3759, 0xCBEE7460, 0x4085F2A7, 0xCE77326E,
     161             :       0xA6078084, 0x19F8509E, 0xE8EFD855, 0x61D99735,
     162             :       0xA969A7AA, 0xC50C06C2, 0x5A04ABFC, 0x800BCADC,
     163             :       0x9E447A2E, 0xC3453484, 0xFDD56705, 0x0E1E9EC9,
     164             :       0xDB73DBD3, 0x105588CD, 0x675FDA79, 0xE3674340,
     165             :       0xC5C43465, 0x713E38D8, 0x3D28F89E, 0xF16DFF20,
     166             :       0x153E21E7, 0x8FB03D4A, 0xE6E39F2B, 0xDB83ADF7 },
     167             :     { 0xE93D5A68, 0x948140F7, 0xF64C261C, 0x94692934,
     168             :       0x411520F7, 0x7602D4F7, 0xBCF46B2E, 0xD4A20068,
     169             :       0xD4082471, 0x3320F46A, 0x43B7D4B7, 0x500061AF,
     170             :       0x1E39F62E, 0x97244546, 0x14214F74, 0xBF8B8840,
     171             :       0x4D95FC1D, 0x96B591AF, 0x70F4DDD3, 0x66A02F45,
     172             :       0xBFBC09EC, 0x03BD9785, 0x7FAC6DD0, 0x31CB8504,
     173             :       0x96EB27B3, 0x55FD3941, 0xDA2547E6, 0xABCA0A9A,
     174             :       0x28507825, 0x530429F4, 0x0A2C86DA, 0xE9B66DFB,
     175             :       0x68DC1462, 0xD7486900, 0x680EC0A4, 0x27A18DEE,
     176             :       0x4F3FFEA2, 0xE887AD8C, 0xB58CE006, 0x7AF4D6B6,
     177             :       0xAACE1E7C, 0xD3375FEC, 0xCE78A399, 0x406B2A42,
     178             :       0x20FE9E35, 0xD9F385B9, 0xEE39D7AB, 0x3B124E8B,
     179             :       0x1DC9FAF7, 0x4B6D1856, 0x26A36631, 0xEAE397B2,
     180             :       0x3A6EFA74, 0xDD5B4332, 0x6841E7F7, 0xCA7820FB,
     181             :       0xFB0AF54E, 0xD8FEB397, 0x454056AC, 0xBA489527,
     182             :       0x55533A3A, 0x20838D87, 0xFE6BA9B7, 0xD096954B,
     183             :       0x55A867BC, 0xA1159A58, 0xCCA92963, 0x99E1DB33,
     184             :       0xA62A4A56, 0x3F3125F9, 0x5EF47E1C, 0x9029317C,
     185             :       0xFDF8E802, 0x04272F70, 0x80BB155C, 0x05282CE3,
     186             :       0x95C11548, 0xE4C66D22, 0x48C1133F, 0xC70F86DC,
     187             :       0x07F9C9EE, 0x41041F0F, 0x404779A4, 0x5D886E17,
     188             :       0x325F51EB, 0xD59BC0D1, 0xF2BCC18F, 0x41113564,
     189             :       0x257B7834, 0x602A9C60, 0xDFF8E8A3, 0x1F636C1B,
     190             :       0x0E12B4C2, 0x02E1329E, 0xAF664FD1, 0xCAD18115,
     191             :       0x6B2395E0, 0x333E92E1, 0x3B240B62, 0xEEBEB922,
     192             :       0x85B2A20E, 0xE6BA0D99, 0xDE720C8C, 0x2DA2F728,
     193             :       0xD0127845, 0x95B794FD, 0x647D0862, 0xE7CCF5F0,
     194             :       0x5449A36F, 0x877D48FA, 0xC39DFD27, 0xF33E8D1E,
     195             :       0x0A476341, 0x992EFF74, 0x3A6F6EAB, 0xF4F8FD37,
     196             :       0xA812DC60, 0xA1EBDDF8, 0x991BE14C, 0xDB6E6B0D,
     197             :       0xC67B5510, 0x6D672C37, 0x2765D43B, 0xDCD0E804,
     198             :       0xF1290DC7, 0xCC00FFA3, 0xB5390F92, 0x690FED0B,
     199             :       0x667B9FFB, 0xCEDB7D9C, 0xA091CF0B, 0xD9155EA3,
     200             :       0xBB132F88, 0x515BAD24, 0x7B9479BF, 0x763BD6EB,
     201             :       0x37392EB3, 0xCC115979, 0x8026E297, 0xF42E312D,
     202             :       0x6842ADA7, 0xC66A2B3B, 0x12754CCC, 0x782EF11C,
     203             :       0x6A124237, 0xB79251E7, 0x06A1BBE6, 0x4BFB6350,
     204             :       0x1A6B1018, 0x11CAEDFA, 0x3D25BDD8, 0xE2E1C3C9,
     205             :       0x44421659, 0x0A121386, 0xD90CEC6E, 0xD5ABEA2A,
     206             :       0x64AF674E, 0xDA86A85F, 0xBEBFE988, 0x64E4C3FE,
     207             :       0x9DBC8057, 0xF0F7C086, 0x60787BF8, 0x6003604D,
     208             :       0xD1FD8346, 0xF6381FB0, 0x7745AE04, 0xD736FCCC,
     209             :       0x83426B33, 0xF01EAB71, 0xB0804187, 0x3C005E5F,
     210             :       0x77A057BE, 0xBDE8AE24, 0x55464299, 0xBF582E61,
     211             :       0x4E58F48F, 0xF2DDFDA2, 0xF474EF38, 0x8789BDC2,
     212             :       0x5366F9C3, 0xC8B38E74, 0xB475F255, 0x46FCD9B9,
     213             :       0x7AEB2661, 0x8B1DDF84, 0x846A0E79, 0x915F95E2,
     214             :       0x466E598E, 0x20B45770, 0x8CD55591, 0xC902DE4C,
     215             :       0xB90BACE1, 0xBB8205D0, 0x11A86248, 0x7574A99E,
     216             :       0xB77F19B6, 0xE0A9DC09, 0x662D09A1, 0xC4324633,
     217             :       0xE85A1F02, 0x09F0BE8C, 0x4A99A025, 0x1D6EFE10,
     218             :       0x1AB93D1D, 0x0BA5A4DF, 0xA186F20F, 0x2868F169,
     219             :       0xDCB7DA83, 0x573906FE, 0xA1E2CE9B, 0x4FCD7F52,
     220             :       0x50115E01, 0xA70683FA, 0xA002B5C4, 0x0DE6D027,
     221             :       0x9AF88C27, 0x773F8641, 0xC3604C06, 0x61A806B5,
     222             :       0xF0177A28, 0xC0F586E0, 0x006058AA, 0x30DC7D62,
     223             :       0x11E69ED7, 0x2338EA63, 0x53C2DD94, 0xC2C21634,
     224             :       0xBBCBEE56, 0x90BCB6DE, 0xEBFC7DA1, 0xCE591D76,
     225             :       0x6F05E409, 0x4B7C0188, 0x39720A3D, 0x7C927C24,
     226             :       0x86E3725F, 0x724D9DB9, 0x1AC15BB4, 0xD39EB8FC,
     227             :       0xED545578, 0x08FCA5B5, 0xD83D7CD3, 0x4DAD0FC4,
     228             :       0x1E50EF5E, 0xB161E6F8, 0xA28514D9, 0x6C51133C,
     229             :       0x6FD5C7E7, 0x56E14EC4, 0x362ABFCE, 0xDDC6C837,
     230             :       0xD79A3234, 0x92638212, 0x670EFA8E, 0x406000E0 },
     231             :     { 0x3A39CE37, 0xD3FAF5CF, 0xABC27737, 0x5AC52D1B,
     232             :       0x5CB0679E, 0x4FA33742, 0xD3822740, 0x99BC9BBE,
     233             :       0xD5118E9D, 0xBF0F7315, 0xD62D1C7E, 0xC700C47B,
     234             :       0xB78C1B6B, 0x21A19045, 0xB26EB1BE, 0x6A366EB4,
     235             :       0x5748AB2F, 0xBC946E79, 0xC6A376D2, 0x6549C2C8,
     236             :       0x530FF8EE, 0x468DDE7D, 0xD5730A1D, 0x4CD04DC6,
     237             :       0x2939BBDB, 0xA9BA4650, 0xAC9526E8, 0xBE5EE304,
     238             :       0xA1FAD5F0, 0x6A2D519A, 0x63EF8CE2, 0x9A86EE22,
     239             :       0xC089C2B8, 0x43242EF6, 0xA51E03AA, 0x9CF2D0A4,
     240             :       0x83C061BA, 0x9BE96A4D, 0x8FE51550, 0xBA645BD6,
     241             :       0x2826A2F9, 0xA73A3AE1, 0x4BA99586, 0xEF5562E9,
     242             :       0xC72FEFD3, 0xF752F7DA, 0x3F046F69, 0x77FA0A59,
     243             :       0x80E4A915, 0x87B08601, 0x9B09E6AD, 0x3B3EE593,
     244             :       0xE990FD5A, 0x9E34D797, 0x2CF0B7D9, 0x022B8B51,
     245             :       0x96D5AC3A, 0x017DA67D, 0xD1CF3ED6, 0x7C7D2D28,
     246             :       0x1F9F25CF, 0xADF2B89B, 0x5AD6B472, 0x5A88F54C,
     247             :       0xE029AC71, 0xE019A5E6, 0x47B0ACFD, 0xED93FA9B,
     248             :       0xE8D3C48D, 0x283B57CC, 0xF8D56629, 0x79132E28,
     249             :       0x785F0191, 0xED756055, 0xF7960E44, 0xE3D35E8C,
     250             :       0x15056DD4, 0x88F46DBA, 0x03A16125, 0x0564F0BD,
     251             :       0xC3EB9E15, 0x3C9057A2, 0x97271AEC, 0xA93A072A,
     252             :       0x1B3F6D9B, 0x1E6321F5, 0xF59C66FB, 0x26DCF319,
     253             :       0x7533D928, 0xB155FDF5, 0x03563482, 0x8ABA3CBB,
     254             :       0x28517711, 0xC20AD9F8, 0xABCC5167, 0xCCAD925F,
     255             :       0x4DE81751, 0x3830DC8E, 0x379D5862, 0x9320F991,
     256             :       0xEA7A90C2, 0xFB3E7BCE, 0x5121CE64, 0x774FBE32,
     257             :       0xA8B6E37E, 0xC3293D46, 0x48DE5369, 0x6413E680,
     258             :       0xA2AE0810, 0xDD6DB224, 0x69852DFD, 0x09072166,
     259             :       0xB39A460A, 0x6445C0DD, 0x586CDECF, 0x1C20C8AE,
     260             :       0x5BBEF7DD, 0x1B588D40, 0xCCD2017F, 0x6BB4E3BB,
     261             :       0xDDA26A7E, 0x3A59FF45, 0x3E350A44, 0xBCB4CDD5,
     262             :       0x72EACEA8, 0xFA6484BB, 0x8D6612AE, 0xBF3C6F47,
     263             :       0xD29BE463, 0x542F5D9E, 0xAEC2771B, 0xF64E6370,
     264             :       0x740E0D8D, 0xE75B1357, 0xF8721671, 0xAF537D5D,
     265             :       0x4040CB08, 0x4EB4E2CC, 0x34D2466A, 0x0115AF84,
     266             :       0xE1B00428, 0x95983A1D, 0x06B89FB4, 0xCE6EA048,
     267             :       0x6F3F3B82, 0x3520AB82, 0x011A1D4B, 0x277227F8,
     268             :       0x611560B1, 0xE7933FDC, 0xBB3A792B, 0x344525BD,
     269             :       0xA08839E1, 0x51CE794B, 0x2F32C9B7, 0xA01FBAC9,
     270             :       0xE01CC87E, 0xBCC7D1F6, 0xCF0111C3, 0xA1E8AAC7,
     271             :       0x1A908749, 0xD44FBD9A, 0xD0DADECB, 0xD50ADA38,
     272             :       0x0339C32A, 0xC6913667, 0x8DF9317C, 0xE0B12B4F,
     273             :       0xF79E59B7, 0x43F5BB3A, 0xF2D519FF, 0x27D9459C,
     274             :       0xBF97222C, 0x15E6FC2A, 0x0F91FC71, 0x9B941525,
     275             :       0xFAE59361, 0xCEB69CEB, 0xC2A86459, 0x12BAA8D1,
     276             :       0xB6C1075E, 0xE3056A0C, 0x10D25065, 0xCB03A442,
     277             :       0xE0EC6E0E, 0x1698DB3B, 0x4C98A0BE, 0x3278E964,
     278             :       0x9F1F9532, 0xE0D392DF, 0xD3A0342B, 0x8971F21E,
     279             :       0x1B0A7441, 0x4BA3348C, 0xC5BE7120, 0xC37632D8,
     280             :       0xDF359F8D, 0x9B992F2E, 0xE60B6F47, 0x0FE3F11D,
     281             :       0xE54CDA54, 0x1EDAD891, 0xCE6279CF, 0xCD3E7E6F,
     282             :       0x1618B166, 0xFD2C1D05, 0x848FD2C5, 0xF6FB2299,
     283             :       0xF523F357, 0xA6327623, 0x93A83531, 0x56CCCD02,
     284             :       0xACF08162, 0x5A75EBB5, 0x6E163697, 0x88D273CC,
     285             :       0xDE966292, 0x81B949D0, 0x4C50901B, 0x71C65614,
     286             :       0xE6C6C7BD, 0x327A140A, 0x45E1D006, 0xC3F27B9A,
     287             :       0xC9AA53FD, 0x62A80F00, 0xBB25BFE2, 0x35BDD2F6,
     288             :       0x71126905, 0xB2040222, 0xB6CBCF7C, 0xCD769C2B,
     289             :       0x53113EC0, 0x1640E3D3, 0x38ABBD60, 0x2547ADF0,
     290             :       0xBA38209C, 0xF746CE76, 0x77AFA1C5, 0x20756060,
     291             :       0x85CBFE4E, 0x8AE88DD8, 0x7AAAF9B0, 0x4CF9AA7E,
     292             :       0x1948C25C, 0x02FB8A8C, 0x01C36AE4, 0xD6EBE1F9,
     293             :       0x90D4F869, 0xA65CDEA0, 0x3F09252D, 0xC208E69F,
     294             :       0xB74E6132, 0xCE77E25B, 0x578FDFE3, 0x3AC372E6 }
     295             : };
     296             : 
     297             : #define F(Xl, Xr, P) \
     298             :     Xr ^=((( ctx->s[0][ Xl >> 24        ] \
     299             :            + ctx->s[1][(Xl >> 16) & 0xFF])\
     300             :            ^ ctx->s[2][(Xl >>  8) & 0xFF])\
     301             :            + ctx->s[3][ Xl        & 0xFF])\
     302             :            ^ P;
     303             : 
     304           1 : AVBlowfish *av_blowfish_alloc(void)
     305             : {
     306           1 :     return av_mallocz(sizeof(struct AVBlowfish));
     307             : }
     308             : 
     309          35 : av_cold void av_blowfish_init(AVBlowfish *ctx, const uint8_t *key, int key_len)
     310             : {
     311             :     uint32_t data, data_l, data_r;
     312             :     int i, j, k;
     313             : 
     314          35 :     memcpy(ctx->s, orig_s, sizeof(orig_s));
     315             : 
     316          35 :     j = 0;
     317         665 :     for (i = 0; i < AV_BF_ROUNDS + 2; ++i) {
     318         630 :         data = 0;
     319        3150 :         for (k = 0; k < 4; k++) {
     320        2520 :             data = (data << 8) | key[j];
     321        2520 :             if (++j >= key_len)
     322         308 :                 j = 0;
     323             :         }
     324         630 :         ctx->p[i] = orig_p[i] ^ data;
     325             :     }
     326             : 
     327          35 :     data_l = data_r = 0;
     328             : 
     329         350 :     for (i = 0; i < AV_BF_ROUNDS + 2; i += 2) {
     330         315 :         av_blowfish_crypt_ecb(ctx, &data_l, &data_r, 0);
     331         315 :         ctx->p[i]     = data_l;
     332         315 :         ctx->p[i + 1] = data_r;
     333             :     }
     334             : 
     335         175 :     for (i = 0; i < 4; ++i) {
     336       18060 :         for (j = 0; j < 256; j += 2) {
     337       17920 :             av_blowfish_crypt_ecb(ctx, &data_l, &data_r, 0);
     338       17920 :             ctx->s[i][j]     = data_l;
     339       17920 :             ctx->s[i][j + 1] = data_r;
     340             :         }
     341             :     }
     342          35 : }
     343             : 
     344       18315 : void av_blowfish_crypt_ecb(AVBlowfish *ctx, uint32_t *xl, uint32_t *xr,
     345             :                            int decrypt)
     346             : {
     347             :     uint32_t Xl, Xr;
     348             :     int i;
     349             : 
     350       18315 :     Xl = *xl;
     351       18315 :     Xr = *xr;
     352             : 
     353       18315 :     if (decrypt) {
     354          40 :         Xl ^= ctx->p[AV_BF_ROUNDS + 1];
     355         360 :         for (i = AV_BF_ROUNDS; i > 0; i-=2) {
     356         320 :             F(Xl, Xr, ctx->p[i  ]);
     357         320 :             F(Xr, Xl, ctx->p[i-1]);
     358             :         }
     359             : 
     360          40 :         Xr ^= ctx->p[0];
     361             :     } else {
     362       18275 :         Xl ^= ctx->p[0];
     363      164475 :         for (i = 1; i < AV_BF_ROUNDS+1; i+=2){
     364      146200 :             F(Xl, Xr, ctx->p[i  ]);
     365      146200 :             F(Xr, Xl, ctx->p[i+1]);
     366             :         }
     367             : 
     368       18275 :         Xr ^= ctx->p[AV_BF_ROUNDS + 1];
     369             :     }
     370             : 
     371       18315 :     *xl = Xr;
     372       18315 :     *xr = Xl;
     373       18315 : }
     374             : 
     375           8 : void av_blowfish_crypt(AVBlowfish *ctx, uint8_t *dst, const uint8_t *src,
     376             :                        int count, uint8_t *iv, int decrypt)
     377             : {
     378             :     uint32_t v0, v1;
     379             :     int i;
     380             : 
     381           8 :     if (decrypt) {
     382          14 :         while (count--) {
     383           6 :             v0 = AV_RB32(src);
     384           6 :             v1 = AV_RB32(src + 4);
     385             : 
     386           6 :             av_blowfish_crypt_ecb(ctx, &v0, &v1, decrypt);
     387             : 
     388           6 :             if (iv) {
     389           4 :                 v0 ^= AV_RB32(iv);
     390           4 :                 v1 ^= AV_RB32(iv + 4);
     391           4 :                 memcpy(iv, src, 8);
     392             :             }
     393             : 
     394           6 :             AV_WB32(dst, v0);
     395           6 :             AV_WB32(dst + 4, v1);
     396             : 
     397           6 :             src   += 8;
     398           6 :             dst   += 8;
     399             :         }
     400             :     } else {
     401          14 :         while (count--) {
     402           6 :             if (iv) {
     403          36 :                 for (i = 0; i < 8; i++)
     404          32 :                     dst[i] = src[i] ^ iv[i];
     405           4 :                 v0 = AV_RB32(dst);
     406           4 :                 v1 = AV_RB32(dst + 4);
     407             :             } else {
     408           2 :                 v0 = AV_RB32(src);
     409           2 :                 v1 = AV_RB32(src + 4);
     410             :             }
     411             : 
     412           6 :             av_blowfish_crypt_ecb(ctx, &v0, &v1, decrypt);
     413             : 
     414           6 :             AV_WB32(dst, v0);
     415           6 :             AV_WB32(dst + 4, v1);
     416             : 
     417           6 :             if (iv)
     418           4 :                 memcpy(iv, dst, 8);
     419             : 
     420           6 :             src   += 8;
     421           6 :             dst   += 8;
     422             :         }
     423             :     }
     424           8 : }

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