Commit 03d5f74aeec3c282f06ff0151596df25ab88659a
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update
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@419 c046a42c-6fe2-441c-8c8c-71466251a162
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tests/Makefile
tests/sha1.c
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1 | + | |
2 | +/* from valgrind tests */ | |
3 | + | |
4 | +/* ================ sha1.c ================ */ | |
5 | +/* | |
6 | +SHA-1 in C | |
7 | +By Steve Reid <steve@edmweb.com> | |
8 | +100% Public Domain | |
9 | + | |
10 | +Test Vectors (from FIPS PUB 180-1) | |
11 | +"abc" | |
12 | + A9993E36 4706816A BA3E2571 7850C26C 9CD0D89D | |
13 | +"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" | |
14 | + 84983E44 1C3BD26E BAAE4AA1 F95129E5 E54670F1 | |
15 | +A million repetitions of "a" | |
16 | + 34AA973C D4C4DAA4 F61EEB2B DBAD2731 6534016F | |
17 | +*/ | |
18 | + | |
19 | +/* #define LITTLE_ENDIAN * This should be #define'd already, if true. */ | |
20 | +/* #define SHA1HANDSOFF * Copies data before messing with it. */ | |
21 | + | |
22 | +#define SHA1HANDSOFF | |
23 | + | |
24 | +#include <stdio.h> | |
25 | +#include <string.h> | |
26 | +#include <sys/types.h> /* for u_int*_t */ | |
27 | + | |
28 | +/* ================ sha1.h ================ */ | |
29 | +/* | |
30 | +SHA-1 in C | |
31 | +By Steve Reid <steve@edmweb.com> | |
32 | +100% Public Domain | |
33 | +*/ | |
34 | + | |
35 | +typedef struct { | |
36 | + u_int32_t state[5]; | |
37 | + u_int32_t count[2]; | |
38 | + unsigned char buffer[64]; | |
39 | +} SHA1_CTX; | |
40 | + | |
41 | +void SHA1Transform(u_int32_t state[5], const unsigned char buffer[64]); | |
42 | +void SHA1Init(SHA1_CTX* context); | |
43 | +void SHA1Update(SHA1_CTX* context, const unsigned char* data, u_int32_t len); | |
44 | +void SHA1Final(unsigned char digest[20], SHA1_CTX* context); | |
45 | +/* ================ end of sha1.h ================ */ | |
46 | +#include <endian.h> | |
47 | + | |
48 | +#define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits)))) | |
49 | + | |
50 | +/* blk0() and blk() perform the initial expand. */ | |
51 | +/* I got the idea of expanding during the round function from SSLeay */ | |
52 | +#if BYTE_ORDER == LITTLE_ENDIAN | |
53 | +#define blk0(i) (block->l[i] = (rol(block->l[i],24)&0xFF00FF00) \ | |
54 | + |(rol(block->l[i],8)&0x00FF00FF)) | |
55 | +#elif BYTE_ORDER == BIG_ENDIAN | |
56 | +#define blk0(i) block->l[i] | |
57 | +#else | |
58 | +#error "Endianness not defined!" | |
59 | +#endif | |
60 | +#define blk(i) (block->l[i&15] = rol(block->l[(i+13)&15]^block->l[(i+8)&15] \ | |
61 | + ^block->l[(i+2)&15]^block->l[i&15],1)) | |
62 | + | |
63 | +/* (R0+R1), R2, R3, R4 are the different operations used in SHA1 */ | |
64 | +#define R0(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk0(i)+0x5A827999+rol(v,5);w=rol(w,30); | |
65 | +#define R1(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk(i)+0x5A827999+rol(v,5);w=rol(w,30); | |
66 | +#define R2(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0x6ED9EBA1+rol(v,5);w=rol(w,30); | |
67 | +#define R3(v,w,x,y,z,i) z+=(((w|x)&y)|(w&x))+blk(i)+0x8F1BBCDC+rol(v,5);w=rol(w,30); | |
68 | +#define R4(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0xCA62C1D6+rol(v,5);w=rol(w,30); | |
69 | + | |
70 | + | |
71 | +/* Hash a single 512-bit block. This is the core of the algorithm. */ | |
72 | + | |
73 | +void SHA1Transform(u_int32_t state[5], const unsigned char buffer[64]) | |
74 | +{ | |
75 | +u_int32_t a, b, c, d, e; | |
76 | +typedef union { | |
77 | + unsigned char c[64]; | |
78 | + u_int32_t l[16]; | |
79 | +} CHAR64LONG16; | |
80 | +#ifdef SHA1HANDSOFF | |
81 | +CHAR64LONG16 block[1]; /* use array to appear as a pointer */ | |
82 | + memcpy(block, buffer, 64); | |
83 | +#else | |
84 | + /* The following had better never be used because it causes the | |
85 | + * pointer-to-const buffer to be cast into a pointer to non-const. | |
86 | + * And the result is written through. I threw a "const" in, hoping | |
87 | + * this will cause a diagnostic. | |
88 | + */ | |
89 | +CHAR64LONG16* block = (const CHAR64LONG16*)buffer; | |
90 | +#endif | |
91 | + /* Copy context->state[] to working vars */ | |
92 | + a = state[0]; | |
93 | + b = state[1]; | |
94 | + c = state[2]; | |
95 | + d = state[3]; | |
96 | + e = state[4]; | |
97 | + /* 4 rounds of 20 operations each. Loop unrolled. */ | |
98 | + R0(a,b,c,d,e, 0); R0(e,a,b,c,d, 1); R0(d,e,a,b,c, 2); R0(c,d,e,a,b, 3); | |
99 | + R0(b,c,d,e,a, 4); R0(a,b,c,d,e, 5); R0(e,a,b,c,d, 6); R0(d,e,a,b,c, 7); | |
100 | + R0(c,d,e,a,b, 8); R0(b,c,d,e,a, 9); R0(a,b,c,d,e,10); R0(e,a,b,c,d,11); | |
101 | + R0(d,e,a,b,c,12); R0(c,d,e,a,b,13); R0(b,c,d,e,a,14); R0(a,b,c,d,e,15); | |
102 | + R1(e,a,b,c,d,16); R1(d,e,a,b,c,17); R1(c,d,e,a,b,18); R1(b,c,d,e,a,19); | |
103 | + R2(a,b,c,d,e,20); R2(e,a,b,c,d,21); R2(d,e,a,b,c,22); R2(c,d,e,a,b,23); | |
104 | + R2(b,c,d,e,a,24); R2(a,b,c,d,e,25); R2(e,a,b,c,d,26); R2(d,e,a,b,c,27); | |
105 | + R2(c,d,e,a,b,28); R2(b,c,d,e,a,29); R2(a,b,c,d,e,30); R2(e,a,b,c,d,31); | |
106 | + R2(d,e,a,b,c,32); R2(c,d,e,a,b,33); R2(b,c,d,e,a,34); R2(a,b,c,d,e,35); | |
107 | + R2(e,a,b,c,d,36); R2(d,e,a,b,c,37); R2(c,d,e,a,b,38); R2(b,c,d,e,a,39); | |
108 | + R3(a,b,c,d,e,40); R3(e,a,b,c,d,41); R3(d,e,a,b,c,42); R3(c,d,e,a,b,43); | |
109 | + R3(b,c,d,e,a,44); R3(a,b,c,d,e,45); R3(e,a,b,c,d,46); R3(d,e,a,b,c,47); | |
110 | + R3(c,d,e,a,b,48); R3(b,c,d,e,a,49); R3(a,b,c,d,e,50); R3(e,a,b,c,d,51); | |
111 | + R3(d,e,a,b,c,52); R3(c,d,e,a,b,53); R3(b,c,d,e,a,54); R3(a,b,c,d,e,55); | |
112 | + R3(e,a,b,c,d,56); R3(d,e,a,b,c,57); R3(c,d,e,a,b,58); R3(b,c,d,e,a,59); | |
113 | + R4(a,b,c,d,e,60); R4(e,a,b,c,d,61); R4(d,e,a,b,c,62); R4(c,d,e,a,b,63); | |
114 | + R4(b,c,d,e,a,64); R4(a,b,c,d,e,65); R4(e,a,b,c,d,66); R4(d,e,a,b,c,67); | |
115 | + R4(c,d,e,a,b,68); R4(b,c,d,e,a,69); R4(a,b,c,d,e,70); R4(e,a,b,c,d,71); | |
116 | + R4(d,e,a,b,c,72); R4(c,d,e,a,b,73); R4(b,c,d,e,a,74); R4(a,b,c,d,e,75); | |
117 | + R4(e,a,b,c,d,76); R4(d,e,a,b,c,77); R4(c,d,e,a,b,78); R4(b,c,d,e,a,79); | |
118 | + /* Add the working vars back into context.state[] */ | |
119 | + state[0] += a; | |
120 | + state[1] += b; | |
121 | + state[2] += c; | |
122 | + state[3] += d; | |
123 | + state[4] += e; | |
124 | + /* Wipe variables */ | |
125 | + a = b = c = d = e = 0; | |
126 | +#ifdef SHA1HANDSOFF | |
127 | + memset(block, '\0', sizeof(block)); | |
128 | +#endif | |
129 | +} | |
130 | + | |
131 | + | |
132 | +/* SHA1Init - Initialize new context */ | |
133 | + | |
134 | +void SHA1Init(SHA1_CTX* context) | |
135 | +{ | |
136 | + /* SHA1 initialization constants */ | |
137 | + context->state[0] = 0x67452301; | |
138 | + context->state[1] = 0xEFCDAB89; | |
139 | + context->state[2] = 0x98BADCFE; | |
140 | + context->state[3] = 0x10325476; | |
141 | + context->state[4] = 0xC3D2E1F0; | |
142 | + context->count[0] = context->count[1] = 0; | |
143 | +} | |
144 | + | |
145 | + | |
146 | +/* Run your data through this. */ | |
147 | + | |
148 | +void SHA1Update(SHA1_CTX* context, const unsigned char* data, u_int32_t len) | |
149 | +{ | |
150 | +u_int32_t i; | |
151 | +u_int32_t j; | |
152 | + | |
153 | + j = context->count[0]; | |
154 | + if ((context->count[0] += len << 3) < j) | |
155 | + context->count[1]++; | |
156 | + context->count[1] += (len>>29); | |
157 | + j = (j >> 3) & 63; | |
158 | + if ((j + len) > 63) { | |
159 | + memcpy(&context->buffer[j], data, (i = 64-j)); | |
160 | + SHA1Transform(context->state, context->buffer); | |
161 | + for ( ; i + 63 < len; i += 64) { | |
162 | + SHA1Transform(context->state, &data[i]); | |
163 | + } | |
164 | + j = 0; | |
165 | + } | |
166 | + else i = 0; | |
167 | + memcpy(&context->buffer[j], &data[i], len - i); | |
168 | +} | |
169 | + | |
170 | + | |
171 | +/* Add padding and return the message digest. */ | |
172 | + | |
173 | +void SHA1Final(unsigned char digest[20], SHA1_CTX* context) | |
174 | +{ | |
175 | +unsigned i; | |
176 | +unsigned char finalcount[8]; | |
177 | +unsigned char c; | |
178 | + | |
179 | +#if 0 /* untested "improvement" by DHR */ | |
180 | + /* Convert context->count to a sequence of bytes | |
181 | + * in finalcount. Second element first, but | |
182 | + * big-endian order within element. | |
183 | + * But we do it all backwards. | |
184 | + */ | |
185 | + unsigned char *fcp = &finalcount[8]; | |
186 | + | |
187 | + for (i = 0; i < 2; i++) | |
188 | + { | |
189 | + u_int32_t t = context->count[i]; | |
190 | + int j; | |
191 | + | |
192 | + for (j = 0; j < 4; t >>= 8, j++) | |
193 | + *--fcp = (unsigned char) t | |
194 | + } | |
195 | +#else | |
196 | + for (i = 0; i < 8; i++) { | |
197 | + finalcount[i] = (unsigned char)((context->count[(i >= 4 ? 0 : 1)] | |
198 | + >> ((3-(i & 3)) * 8) ) & 255); /* Endian independent */ | |
199 | + } | |
200 | +#endif | |
201 | + c = 0200; | |
202 | + SHA1Update(context, &c, 1); | |
203 | + while ((context->count[0] & 504) != 448) { | |
204 | + c = 0000; | |
205 | + SHA1Update(context, &c, 1); | |
206 | + } | |
207 | + SHA1Update(context, finalcount, 8); /* Should cause a SHA1Transform() */ | |
208 | + for (i = 0; i < 20; i++) { | |
209 | + digest[i] = (unsigned char) | |
210 | + ((context->state[i>>2] >> ((3-(i & 3)) * 8) ) & 255); | |
211 | + } | |
212 | + /* Wipe variables */ | |
213 | + memset(context, '\0', sizeof(*context)); | |
214 | + memset(&finalcount, '\0', sizeof(finalcount)); | |
215 | +} | |
216 | +/* ================ end of sha1.c ================ */ | |
217 | + | |
218 | +#define BUFSIZE 4096 | |
219 | + | |
220 | +int | |
221 | +main(int argc, char **argv) | |
222 | +{ | |
223 | + SHA1_CTX ctx; | |
224 | + unsigned char hash[20], buf[BUFSIZE]; | |
225 | + int i; | |
226 | + | |
227 | + for(i=0;i<BUFSIZE;i++) | |
228 | + buf[i] = i; | |
229 | + | |
230 | + SHA1Init(&ctx); | |
231 | + for(i=0;i<1000;i++) | |
232 | + SHA1Update(&ctx, buf, BUFSIZE); | |
233 | + SHA1Final(hash, &ctx); | |
234 | + | |
235 | + printf("SHA1="); | |
236 | + for(i=0;i<20;i++) | |
237 | + printf("%02x", hash[i]); | |
238 | + printf("\n"); | |
239 | + return 0; | |
240 | +} | |
241 | + | |
242 | + | ... | ... |