Line data Source code
1 : /*
2 : * contrib/pgcrypto/crypt-blowfish.c
3 : *
4 : * This code comes from John the Ripper password cracker, with reentrant
5 : * and crypt(3) interfaces added, but optimizations specific to password
6 : * cracking removed.
7 : *
8 : * Written by Solar Designer <solar at openwall.com> in 1998-2002 and
9 : * placed in the public domain.
10 : *
11 : * There's absolutely no warranty.
12 : *
13 : * It is my intent that you should be able to use this on your system,
14 : * as a part of a software package, or anywhere else to improve security,
15 : * ensure compatibility, or for any other purpose. I would appreciate
16 : * it if you give credit where it is due and keep your modifications in
17 : * the public domain as well, but I don't require that in order to let
18 : * you place this code and any modifications you make under a license
19 : * of your choice.
20 : *
21 : * This implementation is compatible with OpenBSD bcrypt.c (version 2a)
22 : * by Niels Provos <provos at citi.umich.edu>, and uses some of his
23 : * ideas. The password hashing algorithm was designed by David Mazieres
24 : * <dm at lcs.mit.edu>.
25 : *
26 : * There's a paper on the algorithm that explains its design decisions:
27 : *
28 : * http://www.usenix.org/events/usenix99/provos.html
29 : *
30 : * Some of the tricks in BF_ROUND might be inspired by Eric Young's
31 : * Blowfish library (I can't be sure if I would think of something if I
32 : * hadn't seen his code).
33 : */
34 :
35 : #include "postgres.h"
36 : #include "miscadmin.h"
37 :
38 : #include "px-crypt.h"
39 : #include "px.h"
40 :
41 : #ifdef __i386__
42 : #define BF_ASM 0 /* 1 */
43 : #define BF_SCALE 1
44 : #elif defined(__x86_64__)
45 : #define BF_ASM 0
46 : #define BF_SCALE 1
47 : #else
48 : #define BF_ASM 0
49 : #define BF_SCALE 0
50 : #endif
51 :
52 : typedef unsigned int BF_word;
53 : typedef signed int BF_word_signed;
54 :
55 : /* Number of Blowfish rounds, this is also hardcoded into a few places */
56 : #define BF_N 16
57 :
58 : typedef BF_word BF_key[BF_N + 2];
59 :
60 : typedef struct
61 : {
62 : BF_word S[4][0x100];
63 : BF_key P;
64 : } BF_ctx;
65 :
66 : /*
67 : * Magic IV for 64 Blowfish encryptions that we do at the end.
68 : * The string is "OrpheanBeholderScryDoubt" on big-endian.
69 : */
70 : static BF_word BF_magic_w[6] = {
71 : 0x4F727068, 0x65616E42, 0x65686F6C,
72 : 0x64657253, 0x63727944, 0x6F756274
73 : };
74 :
75 : /*
76 : * P-box and S-box tables initialized with digits of Pi.
77 : */
78 : static BF_ctx BF_init_state = {
79 : {
80 : {
81 : 0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7,
82 : 0xb8e1afed, 0x6a267e96, 0xba7c9045, 0xf12c7f99,
83 : 0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16,
84 : 0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e,
85 : 0x0d95748f, 0x728eb658, 0x718bcd58, 0x82154aee,
86 : 0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013,
87 : 0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef,
88 : 0x8e79dcb0, 0x603a180e, 0x6c9e0e8b, 0xb01e8a3e,
89 : 0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60,
90 : 0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440,
91 : 0x55ca396a, 0x2aab10b6, 0xb4cc5c34, 0x1141e8ce,
92 : 0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a,
93 : 0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e,
94 : 0xafd6ba33, 0x6c24cf5c, 0x7a325381, 0x28958677,
95 : 0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193,
96 : 0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032,
97 : 0xef845d5d, 0xe98575b1, 0xdc262302, 0xeb651b88,
98 : 0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239,
99 : 0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e,
100 : 0x21c66842, 0xf6e96c9a, 0x670c9c61, 0xabd388f0,
101 : 0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3,
102 : 0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98,
103 : 0xa1f1651d, 0x39af0176, 0x66ca593e, 0x82430e88,
104 : 0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe,
105 : 0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6,
106 : 0x4ed3aa62, 0x363f7706, 0x1bfedf72, 0x429b023d,
107 : 0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b,
108 : 0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7,
109 : 0xe3fe501a, 0xb6794c3b, 0x976ce0bd, 0x04c006ba,
110 : 0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463,
111 : 0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f,
112 : 0x6dfc511f, 0x9b30952c, 0xcc814544, 0xaf5ebd09,
113 : 0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3,
114 : 0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb,
115 : 0x5579c0bd, 0x1a60320a, 0xd6a100c6, 0x402c7279,
116 : 0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8,
117 : 0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab,
118 : 0x323db5fa, 0xfd238760, 0x53317b48, 0x3e00df82,
119 : 0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db,
120 : 0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573,
121 : 0x695b27b0, 0xbbca58c8, 0xe1ffa35d, 0xb8f011a0,
122 : 0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b,
123 : 0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790,
124 : 0xe1ddf2da, 0xa4cb7e33, 0x62fb1341, 0xcee4c6e8,
125 : 0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4,
126 : 0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0,
127 : 0xd08ed1d0, 0xafc725e0, 0x8e3c5b2f, 0x8e7594b7,
128 : 0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c,
129 : 0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad,
130 : 0x2f2f2218, 0xbe0e1777, 0xea752dfe, 0x8b021fa1,
131 : 0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299,
132 : 0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9,
133 : 0x165fa266, 0x80957705, 0x93cc7314, 0x211a1477,
134 : 0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf,
135 : 0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49,
136 : 0x00250e2d, 0x2071b35e, 0x226800bb, 0x57b8e0af,
137 : 0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa,
138 : 0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5,
139 : 0x83260376, 0x6295cfa9, 0x11c81968, 0x4e734a41,
140 : 0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915,
141 : 0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400,
142 : 0x08ba6fb5, 0x571be91f, 0xf296ec6b, 0x2a0dd915,
143 : 0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664,
144 : 0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a
145 : }, {
146 : 0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623,
147 : 0xad6ea6b0, 0x49a7df7d, 0x9cee60b8, 0x8fedb266,
148 : 0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1,
149 : 0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e,
150 : 0x3f54989a, 0x5b429d65, 0x6b8fe4d6, 0x99f73fd6,
151 : 0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1,
152 : 0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e,
153 : 0x09686b3f, 0x3ebaefc9, 0x3c971814, 0x6b6a70a1,
154 : 0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737,
155 : 0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8,
156 : 0xb03ada37, 0xf0500c0d, 0xf01c1f04, 0x0200b3ff,
157 : 0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd,
158 : 0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701,
159 : 0x3ae5e581, 0x37c2dadc, 0xc8b57634, 0x9af3dda7,
160 : 0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41,
161 : 0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331,
162 : 0x4e548b38, 0x4f6db908, 0x6f420d03, 0xf60a04bf,
163 : 0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af,
164 : 0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e,
165 : 0x5512721f, 0x2e6b7124, 0x501adde6, 0x9f84cd87,
166 : 0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c,
167 : 0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2,
168 : 0xef1c1847, 0x3215d908, 0xdd433b37, 0x24c2ba16,
169 : 0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd,
170 : 0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b,
171 : 0x043556f1, 0xd7a3c76b, 0x3c11183b, 0x5924a509,
172 : 0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e,
173 : 0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3,
174 : 0x771fe71c, 0x4e3d06fa, 0x2965dcb9, 0x99e71d0f,
175 : 0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a,
176 : 0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4,
177 : 0xf2f74ea7, 0x361d2b3d, 0x1939260f, 0x19c27960,
178 : 0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66,
179 : 0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28,
180 : 0xc332ddef, 0xbe6c5aa5, 0x65582185, 0x68ab9802,
181 : 0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84,
182 : 0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510,
183 : 0x13cca830, 0xeb61bd96, 0x0334fe1e, 0xaa0363cf,
184 : 0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14,
185 : 0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e,
186 : 0x648b1eaf, 0x19bdf0ca, 0xa02369b9, 0x655abb50,
187 : 0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7,
188 : 0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8,
189 : 0xf837889a, 0x97e32d77, 0x11ed935f, 0x16681281,
190 : 0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99,
191 : 0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696,
192 : 0xcdb30aeb, 0x532e3054, 0x8fd948e4, 0x6dbc3128,
193 : 0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73,
194 : 0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0,
195 : 0x45eee2b6, 0xa3aaabea, 0xdb6c4f15, 0xfacb4fd0,
196 : 0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105,
197 : 0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250,
198 : 0xcf62a1f2, 0x5b8d2646, 0xfc8883a0, 0xc1c7b6a3,
199 : 0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285,
200 : 0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00,
201 : 0x58428d2a, 0x0c55f5ea, 0x1dadf43e, 0x233f7061,
202 : 0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb,
203 : 0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e,
204 : 0xa6078084, 0x19f8509e, 0xe8efd855, 0x61d99735,
205 : 0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc,
206 : 0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9,
207 : 0xdb73dbd3, 0x105588cd, 0x675fda79, 0xe3674340,
208 : 0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20,
209 : 0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7
210 : }, {
211 : 0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934,
212 : 0x411520f7, 0x7602d4f7, 0xbcf46b2e, 0xd4a20068,
213 : 0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af,
214 : 0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840,
215 : 0x4d95fc1d, 0x96b591af, 0x70f4ddd3, 0x66a02f45,
216 : 0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504,
217 : 0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a,
218 : 0x28507825, 0x530429f4, 0x0a2c86da, 0xe9b66dfb,
219 : 0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee,
220 : 0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6,
221 : 0xaace1e7c, 0xd3375fec, 0xce78a399, 0x406b2a42,
222 : 0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b,
223 : 0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2,
224 : 0x3a6efa74, 0xdd5b4332, 0x6841e7f7, 0xca7820fb,
225 : 0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527,
226 : 0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b,
227 : 0x55a867bc, 0xa1159a58, 0xcca92963, 0x99e1db33,
228 : 0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c,
229 : 0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3,
230 : 0x95c11548, 0xe4c66d22, 0x48c1133f, 0xc70f86dc,
231 : 0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17,
232 : 0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564,
233 : 0x257b7834, 0x602a9c60, 0xdff8e8a3, 0x1f636c1b,
234 : 0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115,
235 : 0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922,
236 : 0x85b2a20e, 0xe6ba0d99, 0xde720c8c, 0x2da2f728,
237 : 0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0,
238 : 0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e,
239 : 0x0a476341, 0x992eff74, 0x3a6f6eab, 0xf4f8fd37,
240 : 0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d,
241 : 0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804,
242 : 0xf1290dc7, 0xcc00ffa3, 0xb5390f92, 0x690fed0b,
243 : 0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3,
244 : 0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb,
245 : 0x37392eb3, 0xcc115979, 0x8026e297, 0xf42e312d,
246 : 0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c,
247 : 0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350,
248 : 0x1a6b1018, 0x11caedfa, 0x3d25bdd8, 0xe2e1c3c9,
249 : 0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a,
250 : 0x64af674e, 0xda86a85f, 0xbebfe988, 0x64e4c3fe,
251 : 0x9dbc8057, 0xf0f7c086, 0x60787bf8, 0x6003604d,
252 : 0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc,
253 : 0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f,
254 : 0x77a057be, 0xbde8ae24, 0x55464299, 0xbf582e61,
255 : 0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2,
256 : 0x5366f9c3, 0xc8b38e74, 0xb475f255, 0x46fcd9b9,
257 : 0x7aeb2661, 0x8b1ddf84, 0x846a0e79, 0x915f95e2,
258 : 0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c,
259 : 0xb90bace1, 0xbb8205d0, 0x11a86248, 0x7574a99e,
260 : 0xb77f19b6, 0xe0a9dc09, 0x662d09a1, 0xc4324633,
261 : 0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10,
262 : 0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169,
263 : 0xdcb7da83, 0x573906fe, 0xa1e2ce9b, 0x4fcd7f52,
264 : 0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027,
265 : 0x9af88c27, 0x773f8641, 0xc3604c06, 0x61a806b5,
266 : 0xf0177a28, 0xc0f586e0, 0x006058aa, 0x30dc7d62,
267 : 0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634,
268 : 0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76,
269 : 0x6f05e409, 0x4b7c0188, 0x39720a3d, 0x7c927c24,
270 : 0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc,
271 : 0xed545578, 0x08fca5b5, 0xd83d7cd3, 0x4dad0fc4,
272 : 0x1e50ef5e, 0xb161e6f8, 0xa28514d9, 0x6c51133c,
273 : 0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837,
274 : 0xd79a3234, 0x92638212, 0x670efa8e, 0x406000e0
275 : }, {
276 : 0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b,
277 : 0x5cb0679e, 0x4fa33742, 0xd3822740, 0x99bc9bbe,
278 : 0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b,
279 : 0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4,
280 : 0x5748ab2f, 0xbc946e79, 0xc6a376d2, 0x6549c2c8,
281 : 0x530ff8ee, 0x468dde7d, 0xd5730a1d, 0x4cd04dc6,
282 : 0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304,
283 : 0xa1fad5f0, 0x6a2d519a, 0x63ef8ce2, 0x9a86ee22,
284 : 0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4,
285 : 0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6,
286 : 0x2826a2f9, 0xa73a3ae1, 0x4ba99586, 0xef5562e9,
287 : 0xc72fefd3, 0xf752f7da, 0x3f046f69, 0x77fa0a59,
288 : 0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593,
289 : 0xe990fd5a, 0x9e34d797, 0x2cf0b7d9, 0x022b8b51,
290 : 0x96d5ac3a, 0x017da67d, 0xd1cf3ed6, 0x7c7d2d28,
291 : 0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c,
292 : 0xe029ac71, 0xe019a5e6, 0x47b0acfd, 0xed93fa9b,
293 : 0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28,
294 : 0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c,
295 : 0x15056dd4, 0x88f46dba, 0x03a16125, 0x0564f0bd,
296 : 0xc3eb9e15, 0x3c9057a2, 0x97271aec, 0xa93a072a,
297 : 0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319,
298 : 0x7533d928, 0xb155fdf5, 0x03563482, 0x8aba3cbb,
299 : 0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f,
300 : 0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991,
301 : 0xea7a90c2, 0xfb3e7bce, 0x5121ce64, 0x774fbe32,
302 : 0xa8b6e37e, 0xc3293d46, 0x48de5369, 0x6413e680,
303 : 0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166,
304 : 0xb39a460a, 0x6445c0dd, 0x586cdecf, 0x1c20c8ae,
305 : 0x5bbef7dd, 0x1b588d40, 0xccd2017f, 0x6bb4e3bb,
306 : 0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5,
307 : 0x72eacea8, 0xfa6484bb, 0x8d6612ae, 0xbf3c6f47,
308 : 0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370,
309 : 0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d,
310 : 0x4040cb08, 0x4eb4e2cc, 0x34d2466a, 0x0115af84,
311 : 0xe1b00428, 0x95983a1d, 0x06b89fb4, 0xce6ea048,
312 : 0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8,
313 : 0x611560b1, 0xe7933fdc, 0xbb3a792b, 0x344525bd,
314 : 0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9,
315 : 0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7,
316 : 0x1a908749, 0xd44fbd9a, 0xd0dadecb, 0xd50ada38,
317 : 0x0339c32a, 0xc6913667, 0x8df9317c, 0xe0b12b4f,
318 : 0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c,
319 : 0xbf97222c, 0x15e6fc2a, 0x0f91fc71, 0x9b941525,
320 : 0xfae59361, 0xceb69ceb, 0xc2a86459, 0x12baa8d1,
321 : 0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442,
322 : 0xe0ec6e0e, 0x1698db3b, 0x4c98a0be, 0x3278e964,
323 : 0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e,
324 : 0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8,
325 : 0xdf359f8d, 0x9b992f2e, 0xe60b6f47, 0x0fe3f11d,
326 : 0xe54cda54, 0x1edad891, 0xce6279cf, 0xcd3e7e6f,
327 : 0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299,
328 : 0xf523f357, 0xa6327623, 0x93a83531, 0x56cccd02,
329 : 0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc,
330 : 0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614,
331 : 0xe6c6c7bd, 0x327a140a, 0x45e1d006, 0xc3f27b9a,
332 : 0xc9aa53fd, 0x62a80f00, 0xbb25bfe2, 0x35bdd2f6,
333 : 0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b,
334 : 0x53113ec0, 0x1640e3d3, 0x38abbd60, 0x2547adf0,
335 : 0xba38209c, 0xf746ce76, 0x77afa1c5, 0x20756060,
336 : 0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e,
337 : 0x1948c25c, 0x02fb8a8c, 0x01c36ae4, 0xd6ebe1f9,
338 : 0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f,
339 : 0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6
340 : }
341 : }, {
342 : 0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344,
343 : 0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89,
344 : 0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c,
345 : 0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917,
346 : 0x9216d5d9, 0x8979fb1b
347 : }
348 : };
349 :
350 : static unsigned char BF_itoa64[64 + 1] =
351 : "./ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
352 :
353 : static unsigned char BF_atoi64[0x60] = {
354 : 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 0, 1,
355 : 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 64, 64, 64, 64, 64,
356 : 64, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
357 : 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 64, 64, 64, 64, 64,
358 : 64, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42,
359 : 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 64, 64, 64, 64, 64
360 : };
361 :
362 : #define BF_safe_atoi64(dst, src) \
363 : do { \
364 : tmp = (unsigned char)(src); \
365 : if ((unsigned int)(tmp -= 0x20) >= 0x60) return -1; \
366 : tmp = BF_atoi64[tmp]; \
367 : if (tmp > 63) return -1; \
368 : (dst) = tmp; \
369 : } while (0)
370 :
371 : static int
372 4 : BF_decode(BF_word *dst, const char *src, int size)
373 : {
374 4 : unsigned char *dptr = (unsigned char *) dst;
375 4 : unsigned char *end = dptr + size;
376 4 : const unsigned char *sptr = (const unsigned char *) src;
377 : unsigned int tmp,
378 : c1,
379 : c2,
380 : c3,
381 : c4;
382 :
383 : do
384 : {
385 24 : BF_safe_atoi64(c1, *sptr++);
386 24 : BF_safe_atoi64(c2, *sptr++);
387 24 : *dptr++ = (c1 << 2) | ((c2 & 0x30) >> 4);
388 24 : if (dptr >= end)
389 4 : break;
390 :
391 20 : BF_safe_atoi64(c3, *sptr++);
392 20 : *dptr++ = ((c2 & 0x0F) << 4) | ((c3 & 0x3C) >> 2);
393 20 : if (dptr >= end)
394 0 : break;
395 :
396 20 : BF_safe_atoi64(c4, *sptr++);
397 20 : *dptr++ = ((c3 & 0x03) << 6) | c4;
398 20 : } while (dptr < end);
399 :
400 4 : return 0;
401 : }
402 :
403 : static void
404 4 : BF_encode(char *dst, const BF_word *src, int size)
405 : {
406 4 : const unsigned char *sptr = (const unsigned char *) src;
407 4 : const unsigned char *end = sptr + size;
408 4 : unsigned char *dptr = (unsigned char *) dst;
409 : unsigned int c1,
410 : c2;
411 :
412 : do
413 : {
414 32 : c1 = *sptr++;
415 32 : *dptr++ = BF_itoa64[c1 >> 2];
416 32 : c1 = (c1 & 0x03) << 4;
417 32 : if (sptr >= end)
418 : {
419 0 : *dptr++ = BF_itoa64[c1];
420 0 : break;
421 : }
422 :
423 32 : c2 = *sptr++;
424 32 : c1 |= c2 >> 4;
425 32 : *dptr++ = BF_itoa64[c1];
426 32 : c1 = (c2 & 0x0f) << 2;
427 32 : if (sptr >= end)
428 : {
429 4 : *dptr++ = BF_itoa64[c1];
430 4 : break;
431 : }
432 :
433 28 : c2 = *sptr++;
434 28 : c1 |= c2 >> 6;
435 28 : *dptr++ = BF_itoa64[c1];
436 28 : *dptr++ = BF_itoa64[c2 & 0x3f];
437 28 : } while (sptr < end);
438 4 : }
439 :
440 : static void
441 8 : BF_swap(BF_word *x, int count)
442 : {
443 : /* Swap on little-endian hardware, else do nothing */
444 : #ifndef WORDS_BIGENDIAN
445 : BF_word tmp;
446 :
447 : do
448 : {
449 40 : tmp = *x;
450 40 : tmp = (tmp << 16) | (tmp >> 16);
451 40 : *x++ = ((tmp & 0x00FF00FF) << 8) | ((tmp >> 8) & 0x00FF00FF);
452 40 : } while (--count);
453 : #endif
454 8 : }
455 :
456 : #if BF_SCALE
457 : /* Architectures which can shift addresses left by 2 bits with no extra cost */
458 : #define BF_ROUND(L, R, N) \
459 : tmp1 = (L) & 0xFF; \
460 : tmp2 = (L) >> 8; \
461 : tmp2 &= 0xFF; \
462 : tmp3 = (L) >> 16; \
463 : tmp3 &= 0xFF; \
464 : tmp4 = (L) >> 24; \
465 : tmp1 = data.ctx.S[3][tmp1]; \
466 : tmp2 = data.ctx.S[2][tmp2]; \
467 : tmp3 = data.ctx.S[1][tmp3]; \
468 : tmp3 += data.ctx.S[0][tmp4]; \
469 : tmp3 ^= tmp2; \
470 : (R) ^= data.ctx.P[(N) + 1]; \
471 : tmp3 += tmp1; \
472 : (R) ^= tmp3
473 : #else
474 : /* Architectures with no complicated addressing modes supported */
475 : #define BF_INDEX(S, i) \
476 : (*((BF_word *)(((unsigned char *)(S)) + (i))))
477 : #define BF_ROUND(L, R, N) \
478 : tmp1 = (L) & 0xFF; \
479 : tmp1 <<= 2; \
480 : tmp2 = (L) >> 6; \
481 : tmp2 &= 0x3FC; \
482 : tmp3 = (L) >> 14; \
483 : tmp3 &= 0x3FC; \
484 : tmp4 = (L) >> 22; \
485 : tmp4 &= 0x3FC; \
486 : tmp1 = BF_INDEX(data.ctx.S[3], tmp1); \
487 : tmp2 = BF_INDEX(data.ctx.S[2], tmp2); \
488 : tmp3 = BF_INDEX(data.ctx.S[1], tmp3); \
489 : tmp3 += BF_INDEX(data.ctx.S[0], tmp4); \
490 : tmp3 ^= tmp2; \
491 : (R) ^= data.ctx.P[(N) + 1]; \
492 : tmp3 += tmp1; \
493 : (R) ^= tmp3
494 : #endif
495 :
496 : /*
497 : * Encrypt one block, BF_N is hardcoded here.
498 : */
499 : #define BF_ENCRYPT \
500 : L ^= data.ctx.P[0]; \
501 : BF_ROUND(L, R, 0); \
502 : BF_ROUND(R, L, 1); \
503 : BF_ROUND(L, R, 2); \
504 : BF_ROUND(R, L, 3); \
505 : BF_ROUND(L, R, 4); \
506 : BF_ROUND(R, L, 5); \
507 : BF_ROUND(L, R, 6); \
508 : BF_ROUND(R, L, 7); \
509 : BF_ROUND(L, R, 8); \
510 : BF_ROUND(R, L, 9); \
511 : BF_ROUND(L, R, 10); \
512 : BF_ROUND(R, L, 11); \
513 : BF_ROUND(L, R, 12); \
514 : BF_ROUND(R, L, 13); \
515 : BF_ROUND(L, R, 14); \
516 : BF_ROUND(R, L, 15); \
517 : tmp4 = R; \
518 : R = L; \
519 : L = tmp4 ^ data.ctx.P[BF_N + 1]
520 :
521 : #if BF_ASM
522 :
523 : extern void _BF_body_r(BF_ctx *ctx);
524 :
525 : #define BF_body() \
526 : _BF_body_r(&data.ctx)
527 : #else
528 :
529 : #define BF_body() \
530 : do { \
531 : L = R = 0; \
532 : ptr = data.ctx.P; \
533 : do { \
534 : ptr += 2; \
535 : BF_ENCRYPT; \
536 : *(ptr - 2) = L; \
537 : *(ptr - 1) = R; \
538 : } while (ptr < &data.ctx.P[BF_N + 2]); \
539 : \
540 : ptr = data.ctx.S[0]; \
541 : do { \
542 : ptr += 2; \
543 : BF_ENCRYPT; \
544 : *(ptr - 2) = L; \
545 : *(ptr - 1) = R; \
546 : } while (ptr < &data.ctx.S[3][0xFF]); \
547 : } while (0)
548 : #endif
549 :
550 : static void
551 4 : BF_set_key(const char *key, BF_key expanded, BF_key initial,
552 : int sign_extension_bug)
553 : {
554 4 : const char *ptr = key;
555 : int i,
556 : j;
557 : BF_word tmp;
558 :
559 76 : for (i = 0; i < BF_N + 2; i++)
560 : {
561 72 : tmp = 0;
562 360 : for (j = 0; j < 4; j++)
563 : {
564 288 : tmp <<= 8;
565 288 : if (sign_extension_bug)
566 0 : tmp |= (BF_word_signed) (signed char) *ptr;
567 : else
568 288 : tmp |= (unsigned char) *ptr;
569 :
570 288 : if (!*ptr)
571 102 : ptr = key;
572 : else
573 186 : ptr++;
574 : }
575 :
576 72 : expanded[i] = tmp;
577 72 : initial[i] = BF_init_state.P[i] ^ tmp;
578 : }
579 4 : }
580 :
581 : char *
582 7 : _crypt_blowfish_rn(const char *key, const char *setting,
583 : char *output, int size)
584 : {
585 : struct
586 : {
587 : BF_ctx ctx;
588 : BF_key expanded_key;
589 : union
590 : {
591 : BF_word salt[4];
592 : BF_word output[6];
593 : } binary;
594 : } data;
595 : BF_word L,
596 : R;
597 : BF_word tmp1,
598 : tmp2,
599 : tmp3,
600 : tmp4;
601 : BF_word *ptr;
602 : BF_word count;
603 : int i;
604 :
605 7 : if (size < 7 + 22 + 31 + 1)
606 0 : return NULL;
607 :
608 : /*
609 : * Blowfish salt value must be formatted as follows: "$2a$" or "$2x$", a
610 : * two digit cost parameter, "$", and 22 digits from the alphabet
611 : * "./0-9A-Za-z". -- from the PHP crypt docs. Apparently we enforce a few
612 : * more restrictions on the count in the salt as well.
613 : */
614 7 : if (strlen(setting) < 29)
615 1 : ereport(ERROR,
616 : (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
617 : errmsg("invalid salt")));
618 :
619 6 : if (setting[0] != '$' ||
620 6 : setting[1] != '2' ||
621 6 : (setting[2] != 'a' && setting[2] != 'x') ||
622 6 : setting[3] != '$' ||
623 6 : setting[4] < '0' || setting[4] > '3' ||
624 5 : setting[5] < '0' || setting[5] > '9' ||
625 5 : (setting[4] == '3' && setting[5] > '1') ||
626 5 : setting[6] != '$')
627 : {
628 1 : ereport(ERROR,
629 : (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
630 : errmsg("invalid salt")));
631 : }
632 :
633 5 : count = (BF_word) 1 << ((setting[4] - '0') * 10 + (setting[5] - '0'));
634 5 : if (count < 16 || BF_decode(data.binary.salt, &setting[7], 16))
635 : {
636 1 : px_memset(data.binary.salt, 0, sizeof(data.binary.salt));
637 1 : ereport(ERROR,
638 : (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
639 : errmsg("invalid salt")));
640 : }
641 4 : BF_swap(data.binary.salt, 4);
642 :
643 4 : BF_set_key(key, data.expanded_key, data.ctx.P, setting[2] == 'x');
644 :
645 4 : memcpy(data.ctx.S, BF_init_state.S, sizeof(data.ctx.S));
646 :
647 4 : L = R = 0;
648 40 : for (i = 0; i < BF_N + 2; i += 2)
649 : {
650 36 : L ^= data.binary.salt[i & 2];
651 36 : R ^= data.binary.salt[(i & 2) + 1];
652 36 : BF_ENCRYPT;
653 36 : data.ctx.P[i] = L;
654 36 : data.ctx.P[i + 1] = R;
655 : }
656 :
657 4 : ptr = data.ctx.S[0];
658 : do
659 : {
660 1024 : ptr += 4;
661 1024 : L ^= data.binary.salt[(BF_N + 2) & 3];
662 1024 : R ^= data.binary.salt[(BF_N + 3) & 3];
663 1024 : BF_ENCRYPT;
664 1024 : *(ptr - 4) = L;
665 1024 : *(ptr - 3) = R;
666 :
667 1024 : L ^= data.binary.salt[(BF_N + 4) & 3];
668 1024 : R ^= data.binary.salt[(BF_N + 5) & 3];
669 1024 : BF_ENCRYPT;
670 1024 : *(ptr - 2) = L;
671 1024 : *(ptr - 1) = R;
672 1024 : } while (ptr < &data.ctx.S[3][0xFF]);
673 :
674 : do
675 : {
676 640 : CHECK_FOR_INTERRUPTS();
677 :
678 640 : data.ctx.P[0] ^= data.expanded_key[0];
679 640 : data.ctx.P[1] ^= data.expanded_key[1];
680 640 : data.ctx.P[2] ^= data.expanded_key[2];
681 640 : data.ctx.P[3] ^= data.expanded_key[3];
682 640 : data.ctx.P[4] ^= data.expanded_key[4];
683 640 : data.ctx.P[5] ^= data.expanded_key[5];
684 640 : data.ctx.P[6] ^= data.expanded_key[6];
685 640 : data.ctx.P[7] ^= data.expanded_key[7];
686 640 : data.ctx.P[8] ^= data.expanded_key[8];
687 640 : data.ctx.P[9] ^= data.expanded_key[9];
688 640 : data.ctx.P[10] ^= data.expanded_key[10];
689 640 : data.ctx.P[11] ^= data.expanded_key[11];
690 640 : data.ctx.P[12] ^= data.expanded_key[12];
691 640 : data.ctx.P[13] ^= data.expanded_key[13];
692 640 : data.ctx.P[14] ^= data.expanded_key[14];
693 640 : data.ctx.P[15] ^= data.expanded_key[15];
694 640 : data.ctx.P[16] ^= data.expanded_key[16];
695 640 : data.ctx.P[17] ^= data.expanded_key[17];
696 :
697 332800 : BF_body();
698 :
699 640 : tmp1 = data.binary.salt[0];
700 640 : tmp2 = data.binary.salt[1];
701 640 : tmp3 = data.binary.salt[2];
702 640 : tmp4 = data.binary.salt[3];
703 640 : data.ctx.P[0] ^= tmp1;
704 640 : data.ctx.P[1] ^= tmp2;
705 640 : data.ctx.P[2] ^= tmp3;
706 640 : data.ctx.P[3] ^= tmp4;
707 640 : data.ctx.P[4] ^= tmp1;
708 640 : data.ctx.P[5] ^= tmp2;
709 640 : data.ctx.P[6] ^= tmp3;
710 640 : data.ctx.P[7] ^= tmp4;
711 640 : data.ctx.P[8] ^= tmp1;
712 640 : data.ctx.P[9] ^= tmp2;
713 640 : data.ctx.P[10] ^= tmp3;
714 640 : data.ctx.P[11] ^= tmp4;
715 640 : data.ctx.P[12] ^= tmp1;
716 640 : data.ctx.P[13] ^= tmp2;
717 640 : data.ctx.P[14] ^= tmp3;
718 640 : data.ctx.P[15] ^= tmp4;
719 640 : data.ctx.P[16] ^= tmp1;
720 640 : data.ctx.P[17] ^= tmp2;
721 :
722 332800 : BF_body();
723 640 : } while (--count);
724 :
725 16 : for (i = 0; i < 6; i += 2)
726 : {
727 12 : L = BF_magic_w[i];
728 12 : R = BF_magic_w[i + 1];
729 :
730 12 : count = 64;
731 : do
732 : {
733 768 : BF_ENCRYPT;
734 768 : } while (--count);
735 :
736 12 : data.binary.output[i] = L;
737 12 : data.binary.output[i + 1] = R;
738 : }
739 :
740 4 : memcpy(output, setting, 7 + 22 - 1);
741 4 : output[7 + 22 - 1] = BF_itoa64[(int)
742 4 : BF_atoi64[(int) setting[7 + 22 - 1] - 0x20] & 0x30];
743 :
744 : /* This has to be bug-compatible with the original implementation, so
745 : * only encode 23 of the 24 bytes. :-) */
746 4 : BF_swap(data.binary.output, 6);
747 4 : BF_encode(&output[7 + 22], data.binary.output, 23);
748 4 : output[7 + 22 + 31] = '\0';
749 :
750 : /* Overwrite the most obvious sensitive data we have on the stack. Note
751 : * that this does not guarantee there's no sensitive data left on the
752 : * stack and/or in registers; I'm not aware of portable code that does. */
753 4 : px_memset(&data, 0, sizeof(data));
754 :
755 4 : return output;
756 : }
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