diff options
Diffstat (limited to 'apps/plugins/lib')
-rw-r--r-- | apps/plugins/lib/SOURCES | 1 | ||||
-rw-r--r-- | apps/plugins/lib/md5.c | 255 | ||||
-rw-r--r-- | apps/plugins/lib/md5.h | 56 |
3 files changed, 312 insertions, 0 deletions
diff --git a/apps/plugins/lib/SOURCES b/apps/plugins/lib/SOURCES index c5c3a25e26..775db0587e 100644 --- a/apps/plugins/lib/SOURCES +++ b/apps/plugins/lib/SOURCES | |||
@@ -42,3 +42,4 @@ helper.c | |||
42 | #ifdef HAVE_TOUCHPAD | 42 | #ifdef HAVE_TOUCHPAD |
43 | touchscreen.c | 43 | touchscreen.c |
44 | #endif | 44 | #endif |
45 | md5.c | ||
diff --git a/apps/plugins/lib/md5.c b/apps/plugins/lib/md5.c new file mode 100644 index 0000000000..97156634e5 --- /dev/null +++ b/apps/plugins/lib/md5.c | |||
@@ -0,0 +1,255 @@ | |||
1 | /***************************************************************************** | ||
2 | * md5.c: not so strong MD5 hashing | ||
3 | ***************************************************************************** | ||
4 | * Copyright (C) 2004-2005 the VideoLAN team | ||
5 | * $Id: cb57f7b6522df0960a924193cfca438c03a92521 $ | ||
6 | * | ||
7 | * Authors: Jon Lech Johansen <jon-vl@nanocrew.net> | ||
8 | * Sam Hocevar <sam@zoy.org> | ||
9 | * | ||
10 | * Adapted to Rockbox by: Antoine Cellerier <dionoea at videolan dot org> | ||
11 | * | ||
12 | * This program is free software; you can redistribute it and/or modify | ||
13 | * it under the terms of the GNU General Public License as published by | ||
14 | * the Free Software Foundation; either version 2 of the License, or | ||
15 | * (at your option) any later version. | ||
16 | * | ||
17 | * This program is distributed in the hope that it will be useful, | ||
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
20 | * GNU General Public License for more details. | ||
21 | * | ||
22 | * You should have received a copy of the GNU General Public License | ||
23 | * along with this program; if not, write to the Free Software | ||
24 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. | ||
25 | *****************************************************************************/ | ||
26 | |||
27 | #include "plugin.h" | ||
28 | #include "md5.h" | ||
29 | |||
30 | static const struct plugin_api *rb; | ||
31 | |||
32 | void md5_init( const struct plugin_api *api ) | ||
33 | { | ||
34 | rb = api; | ||
35 | } | ||
36 | |||
37 | #ifdef WORDS_BIGENDIAN | ||
38 | /***************************************************************************** | ||
39 | * Reverse: reverse byte order | ||
40 | *****************************************************************************/ | ||
41 | static inline void Reverse( uint32_t *p_buffer, int n ) | ||
42 | { | ||
43 | int i; | ||
44 | |||
45 | for( i = 0; i < n; i++ ) | ||
46 | { | ||
47 | p_buffer[ i ] = GetDWLE(&p_buffer[ i ]); | ||
48 | } | ||
49 | } | ||
50 | # define REVERSE( p, n ) Reverse( p, n ) | ||
51 | #else | ||
52 | # define REVERSE( p, n ) | ||
53 | #endif | ||
54 | |||
55 | #define F1( x, y, z ) ((z) ^ ((x) & ((y) ^ (z)))) | ||
56 | #define F2( x, y, z ) F1((z), (x), (y)) | ||
57 | #define F3( x, y, z ) ((x) ^ (y) ^ (z)) | ||
58 | #define F4( x, y, z ) ((y) ^ ((x) | ~(z))) | ||
59 | |||
60 | #define MD5_DO( f, w, x, y, z, data, s ) \ | ||
61 | ( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x ) | ||
62 | |||
63 | /***************************************************************************** | ||
64 | * DigestMD5: update the MD5 digest with 64 bytes of data | ||
65 | *****************************************************************************/ | ||
66 | static void DigestMD5( struct md5_s *p_md5, uint32_t *p_input ) | ||
67 | { | ||
68 | uint32_t a, b, c, d; | ||
69 | |||
70 | REVERSE( p_input, 16 ); | ||
71 | |||
72 | a = p_md5->p_digest[ 0 ]; | ||
73 | b = p_md5->p_digest[ 1 ]; | ||
74 | c = p_md5->p_digest[ 2 ]; | ||
75 | d = p_md5->p_digest[ 3 ]; | ||
76 | |||
77 | MD5_DO( F1, a, b, c, d, p_input[ 0 ] + 0xd76aa478, 7 ); | ||
78 | MD5_DO( F1, d, a, b, c, p_input[ 1 ] + 0xe8c7b756, 12 ); | ||
79 | MD5_DO( F1, c, d, a, b, p_input[ 2 ] + 0x242070db, 17 ); | ||
80 | MD5_DO( F1, b, c, d, a, p_input[ 3 ] + 0xc1bdceee, 22 ); | ||
81 | MD5_DO( F1, a, b, c, d, p_input[ 4 ] + 0xf57c0faf, 7 ); | ||
82 | MD5_DO( F1, d, a, b, c, p_input[ 5 ] + 0x4787c62a, 12 ); | ||
83 | MD5_DO( F1, c, d, a, b, p_input[ 6 ] + 0xa8304613, 17 ); | ||
84 | MD5_DO( F1, b, c, d, a, p_input[ 7 ] + 0xfd469501, 22 ); | ||
85 | MD5_DO( F1, a, b, c, d, p_input[ 8 ] + 0x698098d8, 7 ); | ||
86 | MD5_DO( F1, d, a, b, c, p_input[ 9 ] + 0x8b44f7af, 12 ); | ||
87 | MD5_DO( F1, c, d, a, b, p_input[ 10 ] + 0xffff5bb1, 17 ); | ||
88 | MD5_DO( F1, b, c, d, a, p_input[ 11 ] + 0x895cd7be, 22 ); | ||
89 | MD5_DO( F1, a, b, c, d, p_input[ 12 ] + 0x6b901122, 7 ); | ||
90 | MD5_DO( F1, d, a, b, c, p_input[ 13 ] + 0xfd987193, 12 ); | ||
91 | MD5_DO( F1, c, d, a, b, p_input[ 14 ] + 0xa679438e, 17 ); | ||
92 | MD5_DO( F1, b, c, d, a, p_input[ 15 ] + 0x49b40821, 22 ); | ||
93 | |||
94 | MD5_DO( F2, a, b, c, d, p_input[ 1 ] + 0xf61e2562, 5 ); | ||
95 | MD5_DO( F2, d, a, b, c, p_input[ 6 ] + 0xc040b340, 9 ); | ||
96 | MD5_DO( F2, c, d, a, b, p_input[ 11 ] + 0x265e5a51, 14 ); | ||
97 | MD5_DO( F2, b, c, d, a, p_input[ 0 ] + 0xe9b6c7aa, 20 ); | ||
98 | MD5_DO( F2, a, b, c, d, p_input[ 5 ] + 0xd62f105d, 5 ); | ||
99 | MD5_DO( F2, d, a, b, c, p_input[ 10 ] + 0x02441453, 9 ); | ||
100 | MD5_DO( F2, c, d, a, b, p_input[ 15 ] + 0xd8a1e681, 14 ); | ||
101 | MD5_DO( F2, b, c, d, a, p_input[ 4 ] + 0xe7d3fbc8, 20 ); | ||
102 | MD5_DO( F2, a, b, c, d, p_input[ 9 ] + 0x21e1cde6, 5 ); | ||
103 | MD5_DO( F2, d, a, b, c, p_input[ 14 ] + 0xc33707d6, 9 ); | ||
104 | MD5_DO( F2, c, d, a, b, p_input[ 3 ] + 0xf4d50d87, 14 ); | ||
105 | MD5_DO( F2, b, c, d, a, p_input[ 8 ] + 0x455a14ed, 20 ); | ||
106 | MD5_DO( F2, a, b, c, d, p_input[ 13 ] + 0xa9e3e905, 5 ); | ||
107 | MD5_DO( F2, d, a, b, c, p_input[ 2 ] + 0xfcefa3f8, 9 ); | ||
108 | MD5_DO( F2, c, d, a, b, p_input[ 7 ] + 0x676f02d9, 14 ); | ||
109 | MD5_DO( F2, b, c, d, a, p_input[ 12 ] + 0x8d2a4c8a, 20 ); | ||
110 | |||
111 | MD5_DO( F3, a, b, c, d, p_input[ 5 ] + 0xfffa3942, 4 ); | ||
112 | MD5_DO( F3, d, a, b, c, p_input[ 8 ] + 0x8771f681, 11 ); | ||
113 | MD5_DO( F3, c, d, a, b, p_input[ 11 ] + 0x6d9d6122, 16 ); | ||
114 | MD5_DO( F3, b, c, d, a, p_input[ 14 ] + 0xfde5380c, 23 ); | ||
115 | MD5_DO( F3, a, b, c, d, p_input[ 1 ] + 0xa4beea44, 4 ); | ||
116 | MD5_DO( F3, d, a, b, c, p_input[ 4 ] + 0x4bdecfa9, 11 ); | ||
117 | MD5_DO( F3, c, d, a, b, p_input[ 7 ] + 0xf6bb4b60, 16 ); | ||
118 | MD5_DO( F3, b, c, d, a, p_input[ 10 ] + 0xbebfbc70, 23 ); | ||
119 | MD5_DO( F3, a, b, c, d, p_input[ 13 ] + 0x289b7ec6, 4 ); | ||
120 | MD5_DO( F3, d, a, b, c, p_input[ 0 ] + 0xeaa127fa, 11 ); | ||
121 | MD5_DO( F3, c, d, a, b, p_input[ 3 ] + 0xd4ef3085, 16 ); | ||
122 | MD5_DO( F3, b, c, d, a, p_input[ 6 ] + 0x04881d05, 23 ); | ||
123 | MD5_DO( F3, a, b, c, d, p_input[ 9 ] + 0xd9d4d039, 4 ); | ||
124 | MD5_DO( F3, d, a, b, c, p_input[ 12 ] + 0xe6db99e5, 11 ); | ||
125 | MD5_DO( F3, c, d, a, b, p_input[ 15 ] + 0x1fa27cf8, 16 ); | ||
126 | MD5_DO( F3, b, c, d, a, p_input[ 2 ] + 0xc4ac5665, 23 ); | ||
127 | |||
128 | MD5_DO( F4, a, b, c, d, p_input[ 0 ] + 0xf4292244, 6 ); | ||
129 | MD5_DO( F4, d, a, b, c, p_input[ 7 ] + 0x432aff97, 10 ); | ||
130 | MD5_DO( F4, c, d, a, b, p_input[ 14 ] + 0xab9423a7, 15 ); | ||
131 | MD5_DO( F4, b, c, d, a, p_input[ 5 ] + 0xfc93a039, 21 ); | ||
132 | MD5_DO( F4, a, b, c, d, p_input[ 12 ] + 0x655b59c3, 6 ); | ||
133 | MD5_DO( F4, d, a, b, c, p_input[ 3 ] + 0x8f0ccc92, 10 ); | ||
134 | MD5_DO( F4, c, d, a, b, p_input[ 10 ] + 0xffeff47d, 15 ); | ||
135 | MD5_DO( F4, b, c, d, a, p_input[ 1 ] + 0x85845dd1, 21 ); | ||
136 | MD5_DO( F4, a, b, c, d, p_input[ 8 ] + 0x6fa87e4f, 6 ); | ||
137 | MD5_DO( F4, d, a, b, c, p_input[ 15 ] + 0xfe2ce6e0, 10 ); | ||
138 | MD5_DO( F4, c, d, a, b, p_input[ 6 ] + 0xa3014314, 15 ); | ||
139 | MD5_DO( F4, b, c, d, a, p_input[ 13 ] + 0x4e0811a1, 21 ); | ||
140 | MD5_DO( F4, a, b, c, d, p_input[ 4 ] + 0xf7537e82, 6 ); | ||
141 | MD5_DO( F4, d, a, b, c, p_input[ 11 ] + 0xbd3af235, 10 ); | ||
142 | MD5_DO( F4, c, d, a, b, p_input[ 2 ] + 0x2ad7d2bb, 15 ); | ||
143 | MD5_DO( F4, b, c, d, a, p_input[ 9 ] + 0xeb86d391, 21 ); | ||
144 | |||
145 | p_md5->p_digest[ 0 ] += a; | ||
146 | p_md5->p_digest[ 1 ] += b; | ||
147 | p_md5->p_digest[ 2 ] += c; | ||
148 | p_md5->p_digest[ 3 ] += d; | ||
149 | } | ||
150 | |||
151 | /***************************************************************************** | ||
152 | * InitMD5: initialise an MD5 message | ||
153 | ***************************************************************************** | ||
154 | * The MD5 message-digest algorithm is described in RFC 1321 | ||
155 | *****************************************************************************/ | ||
156 | void InitMD5( struct md5_s *p_md5 ) | ||
157 | { | ||
158 | p_md5->p_digest[ 0 ] = 0x67452301; | ||
159 | p_md5->p_digest[ 1 ] = 0xefcdab89; | ||
160 | p_md5->p_digest[ 2 ] = 0x98badcfe; | ||
161 | p_md5->p_digest[ 3 ] = 0x10325476; | ||
162 | |||
163 | rb->memset( p_md5->p_data, 0, 64 ); | ||
164 | p_md5->i_bits = 0; | ||
165 | } | ||
166 | |||
167 | /***************************************************************************** | ||
168 | * AddMD5: add i_len bytes to an MD5 message | ||
169 | *****************************************************************************/ | ||
170 | void AddMD5( struct md5_s *p_md5, const void *p_src, size_t i_len ) | ||
171 | { | ||
172 | unsigned int i_current; /* Current bytes in the spare buffer */ | ||
173 | size_t i_offset = 0; | ||
174 | |||
175 | i_current = (p_md5->i_bits / 8) & 63; | ||
176 | |||
177 | p_md5->i_bits += 8 * i_len; | ||
178 | |||
179 | /* If we can complete our spare buffer to 64 bytes, do it and add the | ||
180 | * resulting buffer to the MD5 message */ | ||
181 | if( i_len >= (64 - i_current) ) | ||
182 | { | ||
183 | rb->memcpy( ((uint8_t *)p_md5->p_data) + i_current, p_src, | ||
184 | (64 - i_current) ); | ||
185 | DigestMD5( p_md5, p_md5->p_data ); | ||
186 | |||
187 | i_offset += (64 - i_current); | ||
188 | i_len -= (64 - i_current); | ||
189 | i_current = 0; | ||
190 | } | ||
191 | |||
192 | /* Add as many entire 64 bytes blocks as we can to the MD5 message */ | ||
193 | while( i_len >= 64 ) | ||
194 | { | ||
195 | uint32_t p_tmp[ 16 ]; | ||
196 | rb->memcpy( p_tmp, ((const uint8_t *)p_src) + i_offset, 64 ); | ||
197 | DigestMD5( p_md5, p_tmp ); | ||
198 | i_offset += 64; | ||
199 | i_len -= 64; | ||
200 | } | ||
201 | |||
202 | /* Copy our remaining data to the message's spare buffer */ | ||
203 | rb->memcpy( ((uint8_t *)p_md5->p_data) + i_current, | ||
204 | ((const uint8_t *)p_src) + i_offset, i_len ); | ||
205 | } | ||
206 | |||
207 | /***************************************************************************** | ||
208 | * EndMD5: finish an MD5 message | ||
209 | ***************************************************************************** | ||
210 | * This function adds adequate padding to the end of the message, and appends | ||
211 | * the bit count so that we end at a block boundary. | ||
212 | *****************************************************************************/ | ||
213 | void EndMD5( struct md5_s *p_md5 ) | ||
214 | { | ||
215 | unsigned int i_current; | ||
216 | |||
217 | i_current = (p_md5->i_bits / 8) & 63; | ||
218 | |||
219 | /* Append 0x80 to our buffer. No boundary check because the temporary | ||
220 | * buffer cannot be full, otherwise AddMD5 would have emptied it. */ | ||
221 | ((uint8_t *)p_md5->p_data)[ i_current++ ] = 0x80; | ||
222 | |||
223 | /* If less than 8 bytes are available at the end of the block, complete | ||
224 | * this 64 bytes block with zeros and add it to the message. We'll add | ||
225 | * our length at the end of the next block. */ | ||
226 | if( i_current > 56 ) | ||
227 | { | ||
228 | rb->memset( ((uint8_t *)p_md5->p_data) + i_current, 0, (64 - i_current) ); | ||
229 | DigestMD5( p_md5, p_md5->p_data ); | ||
230 | i_current = 0; | ||
231 | } | ||
232 | |||
233 | /* Fill the unused space in our last block with zeroes and put the | ||
234 | * message length at the end. */ | ||
235 | rb->memset( ((uint8_t *)p_md5->p_data) + i_current, 0, (56 - i_current) ); | ||
236 | p_md5->p_data[ 14 ] = p_md5->i_bits & 0xffffffff; | ||
237 | p_md5->p_data[ 15 ] = (p_md5->i_bits >> 32); | ||
238 | REVERSE( &p_md5->p_data[ 14 ], 2 ); | ||
239 | |||
240 | DigestMD5( p_md5, p_md5->p_data ); | ||
241 | } | ||
242 | |||
243 | void psz_md5_hash( char *psz, struct md5_s *md5_s ) | ||
244 | { | ||
245 | int i; | ||
246 | for ( i = 0; i < 4; i++ ) | ||
247 | { | ||
248 | rb->snprintf( &psz[8*i], 9, "%02x%02x%02x%02x", | ||
249 | md5_s->p_digest[i] & 0xff, | ||
250 | ( md5_s->p_digest[i] >> 8 ) & 0xff, | ||
251 | ( md5_s->p_digest[i] >> 16 ) & 0xff, | ||
252 | md5_s->p_digest[i] >> 24 | ||
253 | ); | ||
254 | } | ||
255 | } | ||
diff --git a/apps/plugins/lib/md5.h b/apps/plugins/lib/md5.h new file mode 100644 index 0000000000..e19c749664 --- /dev/null +++ b/apps/plugins/lib/md5.h | |||
@@ -0,0 +1,56 @@ | |||
1 | /***************************************************************************** | ||
2 | * vlc_md5.h: MD5 hash | ||
3 | ***************************************************************************** | ||
4 | * Copyright (C) 2004-2005 the VideoLAN team | ||
5 | * $Id: 46f10f01439edbcc8bad45673cc302039b76dd5b $ | ||
6 | * | ||
7 | * Authors: Jon Lech Johansen <jon-vl@nanocrew.net> | ||
8 | * Sam Hocevar <sam@zoy.org> | ||
9 | * | ||
10 | * Adapted to Rockbox by: Antoine Cellerier <dionoea at videolan dot org> | ||
11 | * | ||
12 | * This program is free software; you can redistribute it and/or modify | ||
13 | * it under the terms of the GNU General Public License as published by | ||
14 | * the Free Software Foundation; either version 2 of the License, or | ||
15 | * (at your option) any later version. | ||
16 | * | ||
17 | * This program is distributed in the hope that it will be useful, | ||
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
20 | * GNU General Public License for more details. | ||
21 | * | ||
22 | * You should have received a copy of the GNU General Public License | ||
23 | * along with this program; if not, write to the Free Software | ||
24 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. | ||
25 | *****************************************************************************/ | ||
26 | |||
27 | #ifndef _VLC_MD5_H | ||
28 | # define _VLC_MD5_H | ||
29 | |||
30 | void md5_init( const struct plugin_api * ); | ||
31 | |||
32 | /***************************************************************************** | ||
33 | * md5_s: MD5 message structure | ||
34 | ***************************************************************************** | ||
35 | * This structure stores the static information needed to compute an MD5 | ||
36 | * hash. It has an extra data buffer to allow non-aligned writes. | ||
37 | *****************************************************************************/ | ||
38 | struct md5_s | ||
39 | { | ||
40 | uint64_t i_bits; /* Total written bits */ | ||
41 | uint32_t p_digest[4]; /* The MD5 digest */ | ||
42 | uint32_t p_data[16]; /* Buffer to cache non-aligned writes */ | ||
43 | }; | ||
44 | |||
45 | void InitMD5( struct md5_s * ); | ||
46 | void AddMD5( struct md5_s *, const void *, size_t ); | ||
47 | void EndMD5( struct md5_s * ); | ||
48 | |||
49 | /** | ||
50 | * Returns a char representation of the md5 hash, as shown by UNIX md5 or | ||
51 | * md5sum tools. | ||
52 | */ | ||
53 | #define MD5_STRING_LENGTH 32 | ||
54 | void psz_md5_hash( char *, struct md5_s * ); | ||
55 | |||
56 | #endif | ||