lavf: Add support offset timestamps on muxing.
[ffmpeg.git] / 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 "libavutil/intreadwrite.h"
25
26 #include "avutil.h"
27 #include "common.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 av_cold void av_blowfish_init(AVBlowfish *ctx, const uint8_t *key, int key_len)
305 {
306     uint32_t data, data_l, data_r;
307     int i, j, k;
308
309     memcpy(ctx->s, orig_s, sizeof(orig_s));
310
311     j = 0;
312     for (i = 0; i < AV_BF_ROUNDS + 2; ++i) {
313         data = 0;
314         for (k = 0; k < 4; k++) {
315             data = (data << 8) | key[j];
316             if (++j >= key_len)
317                 j = 0;
318         }
319         ctx->p[i] = orig_p[i] ^ data;
320     }
321
322     data_l = data_r = 0;
323
324     for (i = 0; i < AV_BF_ROUNDS + 2; i += 2) {
325         av_blowfish_crypt_ecb(ctx, &data_l, &data_r, 0);
326         ctx->p[i]     = data_l;
327         ctx->p[i + 1] = data_r;
328     }
329
330     for (i = 0; i < 4; ++i) {
331         for (j = 0; j < 256; j += 2) {
332             av_blowfish_crypt_ecb(ctx, &data_l, &data_r, 0);
333             ctx->s[i][j]     = data_l;
334             ctx->s[i][j + 1] = data_r;
335         }
336     }
337 }
338
339 void av_blowfish_crypt_ecb(AVBlowfish *ctx, uint32_t *xl, uint32_t *xr,
340                            int decrypt)
341 {
342     uint32_t Xl, Xr;
343     int i;
344
345     Xl = *xl;
346     Xr = *xr;
347
348     if (decrypt) {
349         Xl ^= ctx->p[AV_BF_ROUNDS + 1];
350         for (i = AV_BF_ROUNDS; i > 0; i-=2) {
351             F(Xl, Xr, ctx->p[i  ]);
352             F(Xr, Xl, ctx->p[i-1]);
353         }
354
355         Xr ^= ctx->p[0];
356     } else {
357         Xl ^= ctx->p[0];
358         for (i = 1; i < AV_BF_ROUNDS+1; i+=2){
359             F(Xl, Xr, ctx->p[i  ]);
360             F(Xr, Xl, ctx->p[i+1]);
361         }
362
363         Xr ^= ctx->p[AV_BF_ROUNDS + 1];
364     }
365
366     *xl = Xr;
367     *xr = Xl;
368 }
369
370 void av_blowfish_crypt(AVBlowfish *ctx, uint8_t *dst, const uint8_t *src,
371                        int count, uint8_t *iv, int decrypt)
372 {
373     uint32_t v0, v1;
374     int i;
375
376     if (decrypt) {
377         while (count--) {
378             v0 = AV_RB32(src);
379             v1 = AV_RB32(src + 4);
380
381             av_blowfish_crypt_ecb(ctx, &v0, &v1, decrypt);
382
383             AV_WB32(dst, v0);
384             AV_WB32(dst + 4, v1);
385
386             if (iv) {
387                 for (i = 0; i < 8; i++)
388                     dst[i] = dst[i] ^ iv[i];
389                 memcpy(iv, src, 8);
390             }
391
392             src   += 8;
393             dst   += 8;
394         }
395     } else {
396         while (count--) {
397             if (iv) {
398                 for (i = 0; i < 8; i++)
399                     dst[i] = src[i] ^ iv[i];
400                 v0 = AV_RB32(dst);
401                 v1 = AV_RB32(dst + 4);
402             } else {
403                 v0 = AV_RB32(src);
404                 v1 = AV_RB32(src + 4);
405             }
406
407             av_blowfish_crypt_ecb(ctx, &v0, &v1, decrypt);
408
409             AV_WB32(dst, v0);
410             AV_WB32(dst + 4, v1);
411
412             if (iv)
413                 memcpy(iv, dst, 8);
414
415             src   += 8;
416             dst   += 8;
417         }
418     }
419 }
420
421 #ifdef TEST
422 #include <stdio.h>
423 #undef printf
424
425 #define NUM_VARIABLE_KEY_TESTS 34
426
427 /* plaintext bytes -- left halves */
428 static const uint32_t plaintext_l[NUM_VARIABLE_KEY_TESTS] = {
429     0x00000000, 0xFFFFFFFF, 0x10000000, 0x11111111, 0x11111111,
430     0x01234567, 0x00000000, 0x01234567, 0x01A1D6D0, 0x5CD54CA8,
431     0x0248D438, 0x51454B58, 0x42FD4430, 0x059B5E08, 0x0756D8E0,
432     0x762514B8, 0x3BDD1190, 0x26955F68, 0x164D5E40, 0x6B056E18,
433     0x004BD6EF, 0x480D3900, 0x437540C8, 0x072D43A0, 0x02FE5577,
434     0x1D9D5C50, 0x30553228, 0x01234567, 0x01234567, 0x01234567,
435     0xFFFFFFFF, 0x00000000, 0x00000000, 0xFFFFFFFF
436 };
437
438 /* plaintext bytes -- right halves */
439 static const uint32_t plaintext_r[NUM_VARIABLE_KEY_TESTS] = {
440     0x00000000, 0xFFFFFFFF, 0x00000001, 0x11111111, 0x11111111,
441     0x89ABCDEF, 0x00000000, 0x89ABCDEF, 0x39776742, 0x3DEF57DA,
442     0x06F67172, 0x2DDF440A, 0x59577FA2, 0x51CF143A, 0x774761D2,
443     0x29BF486A, 0x49372802, 0x35AF609A, 0x4F275232, 0x759F5CCA,
444     0x09176062, 0x6EE762F2, 0x698F3CFA, 0x77075292, 0x8117F12A,
445     0x18F728C2, 0x6D6F295A, 0x89ABCDEF, 0x89ABCDEF, 0x89ABCDEF,
446     0xFFFFFFFF, 0x00000000, 0x00000000, 0xFFFFFFFF
447 };
448
449 /* key bytes for variable key tests */
450 static const uint8_t variable_key[NUM_VARIABLE_KEY_TESTS][8] = {
451     { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
452     { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF },
453     { 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
454     { 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11 },
455     { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF },
456     { 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11 },
457     { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
458     { 0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10 },
459     { 0x7C, 0xA1, 0x10, 0x45, 0x4A, 0x1A, 0x6E, 0x57 },
460     { 0x01, 0x31, 0xD9, 0x61, 0x9D, 0xC1, 0x37, 0x6E },
461     { 0x07, 0xA1, 0x13, 0x3E, 0x4A, 0x0B, 0x26, 0x86 },
462     { 0x38, 0x49, 0x67, 0x4C, 0x26, 0x02, 0x31, 0x9E },
463     { 0x04, 0xB9, 0x15, 0xBA, 0x43, 0xFE, 0xB5, 0xB6 },
464     { 0x01, 0x13, 0xB9, 0x70, 0xFD, 0x34, 0xF2, 0xCE },
465     { 0x01, 0x70, 0xF1, 0x75, 0x46, 0x8F, 0xB5, 0xE6 },
466     { 0x43, 0x29, 0x7F, 0xAD, 0x38, 0xE3, 0x73, 0xFE },
467     { 0x07, 0xA7, 0x13, 0x70, 0x45, 0xDA, 0x2A, 0x16 },
468     { 0x04, 0x68, 0x91, 0x04, 0xC2, 0xFD, 0x3B, 0x2F },
469     { 0x37, 0xD0, 0x6B, 0xB5, 0x16, 0xCB, 0x75, 0x46 },
470     { 0x1F, 0x08, 0x26, 0x0D, 0x1A, 0xC2, 0x46, 0x5E },
471     { 0x58, 0x40, 0x23, 0x64, 0x1A, 0xBA, 0x61, 0x76 },
472     { 0x02, 0x58, 0x16, 0x16, 0x46, 0x29, 0xB0, 0x07 },
473     { 0x49, 0x79, 0x3E, 0xBC, 0x79, 0xB3, 0x25, 0x8F },
474     { 0x4F, 0xB0, 0x5E, 0x15, 0x15, 0xAB, 0x73, 0xA7 },
475     { 0x49, 0xE9, 0x5D, 0x6D, 0x4C, 0xA2, 0x29, 0xBF },
476     { 0x01, 0x83, 0x10, 0xDC, 0x40, 0x9B, 0x26, 0xD6 },
477     { 0x1C, 0x58, 0x7F, 0x1C, 0x13, 0x92, 0x4F, 0xEF },
478     { 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01 },
479     { 0x1F, 0x1F, 0x1F, 0x1F, 0x0E, 0x0E, 0x0E, 0x0E },
480     { 0xE0, 0xFE, 0xE0, 0xFE, 0xF1, 0xFE, 0xF1, 0xFE },
481     { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
482     { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF },
483     { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF },
484     { 0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10 }
485 };
486
487 /* ciphertext bytes -- left halves */
488 static const uint32_t ciphertext_l[NUM_VARIABLE_KEY_TESTS] = {
489     0x4EF99745, 0x51866FD5, 0x7D856F9A, 0x2466DD87, 0x61F9C380,
490     0x7D0CC630, 0x4EF99745, 0x0ACEAB0F, 0x59C68245, 0xB1B8CC0B,
491     0x1730E577, 0xA25E7856, 0x353882B1, 0x48F4D088, 0x432193B7,
492     0x13F04154, 0x2EEDDA93, 0xD887E039, 0x5F99D04F, 0x4A057A3B,
493     0x452031C1, 0x7555AE39, 0x53C55F9C, 0x7A8E7BFA, 0xCF9C5D7A,
494     0xD1ABB290, 0x55CB3774, 0xFA34EC48, 0xA7907951, 0xC39E072D,
495     0x014933E0, 0xF21E9A77, 0x24594688, 0x6B5C5A9C
496 };
497
498 /* ciphertext bytes -- right halves */
499 static const uint32_t ciphertext_r[NUM_VARIABLE_KEY_TESTS] = {
500     0x6198DD78, 0xB85ECB8A, 0x613063F2, 0x8B963C9D, 0x2281B096,
501     0xAFDA1EC7, 0x6198DD78, 0xC6A0A28D, 0xEB05282B, 0x250F09A0,
502     0x8BEA1DA4, 0xCF2651EB, 0x09CE8F1A, 0x4C379918, 0x8951FC98,
503     0xD69D1AE5, 0xFFD39C79, 0x3C2DA6E3, 0x5B163969, 0x24D3977B,
504     0xE4FADA8E, 0xF59B87BD, 0xB49FC019, 0x937E89A3, 0x4986ADB5,
505     0x658BC778, 0xD13EF201, 0x47B268B2, 0x08EA3CAE, 0x9FAC631D,
506     0xCDAFF6E4, 0xB71C49BC, 0x5754369A, 0x5D9E0A5A
507 };
508
509 /* plaintext bytes */
510 static const uint8_t plaintext[8] = "BLOWFISH";
511
512 /* ciphertext bytes */
513 static const uint8_t ciphertext[8] = {
514     0x32, 0x4E, 0xD0, 0xFE, 0xF4, 0x13, 0xA2, 0x03
515 };
516
517 int main(void)
518 {
519     AVBlowfish ctx;
520     uint32_t tmptext_l[NUM_VARIABLE_KEY_TESTS];
521     uint32_t tmptext_r[NUM_VARIABLE_KEY_TESTS];
522     uint8_t tmp[8];
523     int i;
524
525     av_blowfish_init(&ctx, "abcdefghijklmnopqrstuvwxyz", 26);
526
527     av_blowfish_crypt(&ctx, tmp, plaintext, 1, NULL, 0);
528     if (memcmp(tmp, ciphertext, 8)) {
529         printf("Test encryption failed.\n");
530         return 1;
531     }
532
533     av_blowfish_crypt(&ctx, tmp, ciphertext, 1, NULL, 1);
534     if (memcmp(tmp, plaintext, 8)) {
535         printf("Test decryption failed.\n");
536         return 1;
537     }
538
539     memcpy(tmptext_l, plaintext_l, sizeof(*plaintext_l) * NUM_VARIABLE_KEY_TESTS);
540     memcpy(tmptext_r, plaintext_r, sizeof(*plaintext_r) * NUM_VARIABLE_KEY_TESTS);
541
542     for (i = 0; i < NUM_VARIABLE_KEY_TESTS; i++) {
543         av_blowfish_init(&ctx, variable_key[i], 8);
544
545         av_blowfish_crypt_ecb(&ctx, &tmptext_l[i], &tmptext_r[i], 0);
546         if (tmptext_l[i] != ciphertext_l[i] || tmptext_r[i] != ciphertext_r[i]) {
547             printf("Test encryption failed.\n");
548             return 1;
549         }
550
551         av_blowfish_crypt_ecb(&ctx, &tmptext_l[i], &tmptext_r[i], 1);
552         if (tmptext_l[i] != plaintext_l[i] || tmptext_r[i] != plaintext_r[i]) {
553             printf("Test decryption failed.\n");
554             return 1;
555         }
556     }
557     printf("Test encryption/decryption success.\n");
558
559     return 0;
560 }
561
562 #endif