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34 #include <afsconfig.h>
35 #include "afs/param.h"
36 #include "afs/sysincludes.h"
37 #include "afsincludes.h"
43 #define A m->counter[0]
44 #define B m->counter[1]
45 #define C m->counter[2]
46 #define D m->counter[3]
50 AFS_MD5_Init(struct afs_md5 *m)
60 #define F(x,y,z) CRAYFIX((x & y) | (~x & z))
61 #define G(x,y,z) CRAYFIX((x & z) | (y & ~z))
62 #define H(x,y,z) (x ^ y ^ z)
63 #define I(x,y,z) CRAYFIX(y ^ (x | ~z))
65 #define DOIT(a,b,c,d,k,s,i,OP) \
66 a = b + cshift(a + OP(b,c,d) + X[k] + (i), s)
68 #define DO1(a,b,c,d,k,s,i) DOIT(a,b,c,d,k,s,i,F)
69 #define DO2(a,b,c,d,k,s,i) DOIT(a,b,c,d,k,s,i,G)
70 #define DO3(a,b,c,d,k,s,i) DOIT(a,b,c,d,k,s,i,H)
71 #define DO4(a,b,c,d,k,s,i) DOIT(a,b,c,d,k,s,i,I)
74 calc(struct afs_md5 *m, afs_uint32 * data)
76 afs_uint32 AA, BB, CC, DD;
85 DO1(A, B, C, D, 0, 7, 0xd76aa478);
86 DO1(D, A, B, C, 1, 12, 0xe8c7b756);
87 DO1(C, D, A, B, 2, 17, 0x242070db);
88 DO1(B, C, D, A, 3, 22, 0xc1bdceee);
90 DO1(A, B, C, D, 4, 7, 0xf57c0faf);
91 DO1(D, A, B, C, 5, 12, 0x4787c62a);
92 DO1(C, D, A, B, 6, 17, 0xa8304613);
93 DO1(B, C, D, A, 7, 22, 0xfd469501);
95 DO1(A, B, C, D, 8, 7, 0x698098d8);
96 DO1(D, A, B, C, 9, 12, 0x8b44f7af);
97 DO1(C, D, A, B, 10, 17, 0xffff5bb1);
98 DO1(B, C, D, A, 11, 22, 0x895cd7be);
100 DO1(A, B, C, D, 12, 7, 0x6b901122);
101 DO1(D, A, B, C, 13, 12, 0xfd987193);
102 DO1(C, D, A, B, 14, 17, 0xa679438e);
103 DO1(B, C, D, A, 15, 22, 0x49b40821);
107 DO2(A, B, C, D, 1, 5, 0xf61e2562);
108 DO2(D, A, B, C, 6, 9, 0xc040b340);
109 DO2(C, D, A, B, 11, 14, 0x265e5a51);
110 DO2(B, C, D, A, 0, 20, 0xe9b6c7aa);
112 DO2(A, B, C, D, 5, 5, 0xd62f105d);
113 DO2(D, A, B, C, 10, 9, 0x2441453);
114 DO2(C, D, A, B, 15, 14, 0xd8a1e681);
115 DO2(B, C, D, A, 4, 20, 0xe7d3fbc8);
117 DO2(A, B, C, D, 9, 5, 0x21e1cde6);
118 DO2(D, A, B, C, 14, 9, 0xc33707d6);
119 DO2(C, D, A, B, 3, 14, 0xf4d50d87);
120 DO2(B, C, D, A, 8, 20, 0x455a14ed);
122 DO2(A, B, C, D, 13, 5, 0xa9e3e905);
123 DO2(D, A, B, C, 2, 9, 0xfcefa3f8);
124 DO2(C, D, A, B, 7, 14, 0x676f02d9);
125 DO2(B, C, D, A, 12, 20, 0x8d2a4c8a);
129 DO3(A, B, C, D, 5, 4, 0xfffa3942);
130 DO3(D, A, B, C, 8, 11, 0x8771f681);
131 DO3(C, D, A, B, 11, 16, 0x6d9d6122);
132 DO3(B, C, D, A, 14, 23, 0xfde5380c);
134 DO3(A, B, C, D, 1, 4, 0xa4beea44);
135 DO3(D, A, B, C, 4, 11, 0x4bdecfa9);
136 DO3(C, D, A, B, 7, 16, 0xf6bb4b60);
137 DO3(B, C, D, A, 10, 23, 0xbebfbc70);
139 DO3(A, B, C, D, 13, 4, 0x289b7ec6);
140 DO3(D, A, B, C, 0, 11, 0xeaa127fa);
141 DO3(C, D, A, B, 3, 16, 0xd4ef3085);
142 DO3(B, C, D, A, 6, 23, 0x4881d05);
144 DO3(A, B, C, D, 9, 4, 0xd9d4d039);
145 DO3(D, A, B, C, 12, 11, 0xe6db99e5);
146 DO3(C, D, A, B, 15, 16, 0x1fa27cf8);
147 DO3(B, C, D, A, 2, 23, 0xc4ac5665);
151 DO4(A, B, C, D, 0, 6, 0xf4292244);
152 DO4(D, A, B, C, 7, 10, 0x432aff97);
153 DO4(C, D, A, B, 14, 15, 0xab9423a7);
154 DO4(B, C, D, A, 5, 21, 0xfc93a039);
156 DO4(A, B, C, D, 12, 6, 0x655b59c3);
157 DO4(D, A, B, C, 3, 10, 0x8f0ccc92);
158 DO4(C, D, A, B, 10, 15, 0xffeff47d);
159 DO4(B, C, D, A, 1, 21, 0x85845dd1);
161 DO4(A, B, C, D, 8, 6, 0x6fa87e4f);
162 DO4(D, A, B, C, 15, 10, 0xfe2ce6e0);
163 DO4(C, D, A, B, 6, 15, 0xa3014314);
164 DO4(B, C, D, A, 13, 21, 0x4e0811a1);
166 DO4(A, B, C, D, 4, 6, 0xf7537e82);
167 DO4(D, A, B, C, 11, 10, 0xbd3af235);
168 DO4(C, D, A, B, 2, 15, 0x2ad7d2bb);
169 DO4(B, C, D, A, 9, 21, 0xeb86d391);
178 * From `Performance analysis of MD5' by Joseph D. Touch <touch@isi.edu>
181 #if defined(WORDS_BIGENDIAN)
182 static inline afs_uint32
183 swap_afs_uint32(afs_uint32 t)
185 afs_uint32 temp1, temp2;
187 temp1 = cshift(t, 16);
192 return temp1 | temp2;
202 AFS_MD5_Update(struct afs_md5 *m, const void *v, size_t len)
204 const unsigned char *p = v;
205 size_t old_sz = m->sz[0];
209 if (m->sz[0] < old_sz)
211 offset = (old_sz / 8) % 64;
213 size_t l = min(len, 64 - offset);
214 memcpy(m->save + offset, p, l);
219 #if defined(WORDS_BIGENDIAN)
222 struct x32 *ui = (struct x32 *)m->save;
223 for (i = 0; i < 8; i++) {
224 cur[2 * i + 0] = swap_afs_uint32(ui[i].a);
225 cur[2 * i + 1] = swap_afs_uint32(ui[i].b);
229 calc(m, (afs_uint32 *) m->save);
237 AFS_MD5_Final(void *res, struct afs_md5 *m)
239 static unsigned char zeros[72];
240 unsigned offset = (m->sz[0] / 8) % 64;
241 unsigned int dstart = (120 - offset - 1) % 64 + 1;
244 memset(zeros + 1, 0, sizeof(zeros) - 1);
245 zeros[dstart + 0] = (m->sz[0] >> 0) & 0xff;
246 zeros[dstart + 1] = (m->sz[0] >> 8) & 0xff;
247 zeros[dstart + 2] = (m->sz[0] >> 16) & 0xff;
248 zeros[dstart + 3] = (m->sz[0] >> 24) & 0xff;
249 zeros[dstart + 4] = (m->sz[1] >> 0) & 0xff;
250 zeros[dstart + 5] = (m->sz[1] >> 8) & 0xff;
251 zeros[dstart + 6] = (m->sz[1] >> 16) & 0xff;
252 zeros[dstart + 7] = (m->sz[1] >> 24) & 0xff;
253 AFS_MD5_Update(m, zeros, dstart + 8);
256 unsigned char *r = (unsigned char *)res;
258 for (i = 0; i < 4; ++i) {
259 r[4 * i] = m->counter[i] & 0xFF;
260 r[4 * i + 1] = (m->counter[i] >> 8) & 0xFF;
261 r[4 * i + 2] = (m->counter[i] >> 16) & 0xFF;
262 r[4 * i + 3] = (m->counter[i] >> 24) & 0xFF;
268 afs_uint32 *r = (afs_uint32 *) res;
270 for (i = 0; i < 4; ++i)
271 r[i] = swap_afs_uint32(m->counter[i]);
277 AFS_MD5_String(void *res, const void *v, size_t len)
282 AFS_MD5_Update(&m, v, len);
283 AFS_MD5_Final(res, &m);