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git.ipfire.org Git - thirdparty/openssl.git/blob - crypto/md2/md2_dgst.c
2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
13 #include <openssl/md2.h>
14 #include <openssl/opensslv.h>
15 #include <openssl/crypto.h>
18 * Implemented from RFC1319 The MD2 Message-Digest Algorithm
21 #define UCHAR unsigned char
23 static void md2_block(MD2_CTX
*c
, const unsigned char *d
);
25 * The magic S table - I have converted it to hex since it is basically just
26 * a random byte string.
28 static const MD2_INT S
[256] = {
29 0x29, 0x2E, 0x43, 0xC9, 0xA2, 0xD8, 0x7C, 0x01,
30 0x3D, 0x36, 0x54, 0xA1, 0xEC, 0xF0, 0x06, 0x13,
31 0x62, 0xA7, 0x05, 0xF3, 0xC0, 0xC7, 0x73, 0x8C,
32 0x98, 0x93, 0x2B, 0xD9, 0xBC, 0x4C, 0x82, 0xCA,
33 0x1E, 0x9B, 0x57, 0x3C, 0xFD, 0xD4, 0xE0, 0x16,
34 0x67, 0x42, 0x6F, 0x18, 0x8A, 0x17, 0xE5, 0x12,
35 0xBE, 0x4E, 0xC4, 0xD6, 0xDA, 0x9E, 0xDE, 0x49,
36 0xA0, 0xFB, 0xF5, 0x8E, 0xBB, 0x2F, 0xEE, 0x7A,
37 0xA9, 0x68, 0x79, 0x91, 0x15, 0xB2, 0x07, 0x3F,
38 0x94, 0xC2, 0x10, 0x89, 0x0B, 0x22, 0x5F, 0x21,
39 0x80, 0x7F, 0x5D, 0x9A, 0x5A, 0x90, 0x32, 0x27,
40 0x35, 0x3E, 0xCC, 0xE7, 0xBF, 0xF7, 0x97, 0x03,
41 0xFF, 0x19, 0x30, 0xB3, 0x48, 0xA5, 0xB5, 0xD1,
42 0xD7, 0x5E, 0x92, 0x2A, 0xAC, 0x56, 0xAA, 0xC6,
43 0x4F, 0xB8, 0x38, 0xD2, 0x96, 0xA4, 0x7D, 0xB6,
44 0x76, 0xFC, 0x6B, 0xE2, 0x9C, 0x74, 0x04, 0xF1,
45 0x45, 0x9D, 0x70, 0x59, 0x64, 0x71, 0x87, 0x20,
46 0x86, 0x5B, 0xCF, 0x65, 0xE6, 0x2D, 0xA8, 0x02,
47 0x1B, 0x60, 0x25, 0xAD, 0xAE, 0xB0, 0xB9, 0xF6,
48 0x1C, 0x46, 0x61, 0x69, 0x34, 0x40, 0x7E, 0x0F,
49 0x55, 0x47, 0xA3, 0x23, 0xDD, 0x51, 0xAF, 0x3A,
50 0xC3, 0x5C, 0xF9, 0xCE, 0xBA, 0xC5, 0xEA, 0x26,
51 0x2C, 0x53, 0x0D, 0x6E, 0x85, 0x28, 0x84, 0x09,
52 0xD3, 0xDF, 0xCD, 0xF4, 0x41, 0x81, 0x4D, 0x52,
53 0x6A, 0xDC, 0x37, 0xC8, 0x6C, 0xC1, 0xAB, 0xFA,
54 0x24, 0xE1, 0x7B, 0x08, 0x0C, 0xBD, 0xB1, 0x4A,
55 0x78, 0x88, 0x95, 0x8B, 0xE3, 0x63, 0xE8, 0x6D,
56 0xE9, 0xCB, 0xD5, 0xFE, 0x3B, 0x00, 0x1D, 0x39,
57 0xF2, 0xEF, 0xB7, 0x0E, 0x66, 0x58, 0xD0, 0xE4,
58 0xA6, 0x77, 0x72, 0xF8, 0xEB, 0x75, 0x4B, 0x0A,
59 0x31, 0x44, 0x50, 0xB4, 0x8F, 0xED, 0x1F, 0x1A,
60 0xDB, 0x99, 0x8D, 0x33, 0x9F, 0x11, 0x83, 0x14,
63 const char *MD2_options(void)
65 if (sizeof(MD2_INT
) == 1)
71 int MD2_Init(MD2_CTX
*c
)
74 memset(c
->state
, 0, sizeof(c
->state
));
75 memset(c
->cksm
, 0, sizeof(c
->cksm
));
76 memset(c
->data
, 0, sizeof(c
->data
));
80 int MD2_Update(MD2_CTX
*c
, const unsigned char *data
, size_t len
)
89 if ((c
->num
+ len
) >= MD2_BLOCK
) {
90 memcpy(&(p
[c
->num
]), data
, MD2_BLOCK
- c
->num
);
91 md2_block(c
, c
->data
);
92 data
+= (MD2_BLOCK
- c
->num
);
93 len
-= (MD2_BLOCK
- c
->num
);
95 /* drop through and do the rest */
97 memcpy(&(p
[c
->num
]), data
, len
);
104 * we now can process the input data in blocks of MD2_BLOCK chars and
105 * save the leftovers to c->data.
107 while (len
>= MD2_BLOCK
) {
112 memcpy(p
, data
, len
);
117 static void md2_block(MD2_CTX
*c
, const unsigned char *d
)
119 register MD2_INT t
, *sp1
, *sp2
;
125 j
= sp2
[MD2_BLOCK
- 1];
126 for (i
= 0; i
< 16; i
++) {
128 state
[i
+ 16] = t
= d
[i
];
129 state
[i
+ 32] = (t
^ sp1
[i
]);
130 j
= sp2
[i
] ^= S
[t
^ j
];
133 for (i
= 0; i
< 18; i
++) {
134 for (j
= 0; j
< 48; j
+= 8) {
135 t
= state
[j
+ 0] ^= S
[t
];
136 t
= state
[j
+ 1] ^= S
[t
];
137 t
= state
[j
+ 2] ^= S
[t
];
138 t
= state
[j
+ 3] ^= S
[t
];
139 t
= state
[j
+ 4] ^= S
[t
];
140 t
= state
[j
+ 5] ^= S
[t
];
141 t
= state
[j
+ 6] ^= S
[t
];
142 t
= state
[j
+ 7] ^= S
[t
];
146 memcpy(sp1
, state
, 16 * sizeof(MD2_INT
));
147 OPENSSL_cleanse(state
, 48 * sizeof(MD2_INT
));
150 int MD2_Final(unsigned char *md
, MD2_CTX
*c
)
154 register MD2_INT
*p1
, *p2
;
159 v
= MD2_BLOCK
- c
->num
;
160 for (i
= c
->num
; i
< MD2_BLOCK
; i
++)
165 for (i
= 0; i
< MD2_BLOCK
; i
++)
166 cp
[i
] = (UCHAR
) p2
[i
];
169 for (i
= 0; i
< 16; i
++)
170 md
[i
] = (UCHAR
) (p1
[i
] & 0xff);
171 memset(&c
, 0, sizeof(c
));