tsiry-sandratraina.com
A modern Music Player Daemon based on Rockbox open source high quality audio player
libadwaita
audio
rust
zig
deno
mpris
rockbox
mpd
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#ifdef ROCKBOX_BIG_ENDIAN
31static inline uint32_t GetDWLE( const void * _p )
32{
33 const uint8_t * p = (const uint8_t *)_p;
34 return ( ((uint32_t)p[3] << 24) | ((uint32_t)p[2] << 16)
35 | ((uint32_t)p[1] << 8) | p[0] );
36}
37
38/*****************************************************************************
39 * Reverse: reverse byte order
40 *****************************************************************************/
41static 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 *****************************************************************************/
66static 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 *****************************************************************************/
156void 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 *****************************************************************************/
170void 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 *****************************************************************************/
213void 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
243void 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 (unsigned int)(md5_s->p_digest[i] & 0xff),
250 (unsigned int)(( md5_s->p_digest[i] >> 8 ) & 0xff),
251 (unsigned int)(( md5_s->p_digest[i] >> 16 ) & 0xff),
252 (unsigned int)(md5_s->p_digest[i] >> 24)
253 );
254 }
255}