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authorDavid Walter Seikel2013-01-13 18:54:10 +1000
committerDavid Walter Seikel2013-01-13 18:54:10 +1000
commit959831f4ef5a3e797f576c3de08cd65032c997ad (patch)
treee7351908be5995f0b325b2ebeaa02d5a34b82583 /libraries/irrlicht-1.8/source/Irrlicht/aesGladman/sha1.cpp
parentAdd info about changes to Irrlicht. (diff)
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Remove damned ancient DOS line endings from Irrlicht. Hopefully I did not go overboard.
Diffstat (limited to '')
-rw-r--r--libraries/irrlicht-1.8/source/Irrlicht/aesGladman/sha1.cpp474
1 files changed, 237 insertions, 237 deletions
diff --git a/libraries/irrlicht-1.8/source/Irrlicht/aesGladman/sha1.cpp b/libraries/irrlicht-1.8/source/Irrlicht/aesGladman/sha1.cpp
index 8a91768..3ebb509 100644
--- a/libraries/irrlicht-1.8/source/Irrlicht/aesGladman/sha1.cpp
+++ b/libraries/irrlicht-1.8/source/Irrlicht/aesGladman/sha1.cpp
@@ -1,237 +1,237 @@
1/* 1/*
2 --------------------------------------------------------------------------- 2 ---------------------------------------------------------------------------
3 Copyright (c) 2002, Dr Brian Gladman < >, Worcester, UK. 3 Copyright (c) 2002, Dr Brian Gladman < >, Worcester, UK.
4 All rights reserved. 4 All rights reserved.
5 5
6 LICENSE TERMS 6 LICENSE TERMS
7 7
8 The free distribution and use of this software in both source and binary 8 The free distribution and use of this software in both source and binary
9 form is allowed (with or without changes) provided that: 9 form is allowed (with or without changes) provided that:
10 10
11 1. distributions of this source code include the above copyright 11 1. distributions of this source code include the above copyright
12 notice, this list of conditions and the following disclaimer; 12 notice, this list of conditions and the following disclaimer;
13 13
14 2. distributions in binary form include the above copyright 14 2. distributions in binary form include the above copyright
15 notice, this list of conditions and the following disclaimer 15 notice, this list of conditions and the following disclaimer
16 in the documentation and/or other associated materials; 16 in the documentation and/or other associated materials;
17 17
18 3. the copyright holder's name is not used to endorse products 18 3. the copyright holder's name is not used to endorse products
19 built using this software without specific written permission. 19 built using this software without specific written permission.
20 20
21 ALTERNATIVELY, provided that this notice is retained in full, this product 21 ALTERNATIVELY, provided that this notice is retained in full, this product
22 may be distributed under the terms of the GNU General Public License (GPL), 22 may be distributed under the terms of the GNU General Public License (GPL),
23 in which case the provisions of the GPL apply INSTEAD OF those given above. 23 in which case the provisions of the GPL apply INSTEAD OF those given above.
24 24
25 DISCLAIMER 25 DISCLAIMER
26 26
27 This software is provided 'as is' with no explicit or implied warranties 27 This software is provided 'as is' with no explicit or implied warranties
28 in respect of its properties, including, but not limited to, correctness 28 in respect of its properties, including, but not limited to, correctness
29 and/or fitness for purpose. 29 and/or fitness for purpose.
30 --------------------------------------------------------------------------- 30 ---------------------------------------------------------------------------
31 Issue Date: 26/08/2003 31 Issue Date: 26/08/2003
32 32
33 This is a byte oriented version of SHA1 that operates on arrays of bytes 33 This is a byte oriented version of SHA1 that operates on arrays of bytes
34 stored in memory. It runs at 22 cycles per byte on a Pentium P4 processor 34 stored in memory. It runs at 22 cycles per byte on a Pentium P4 processor
35*/ 35*/
36 36
37#include <string.h> /* for memcpy() etc. */ 37#include <string.h> /* for memcpy() etc. */
38#include <stdlib.h> /* for _lrotl with VC++ */ 38#include <stdlib.h> /* for _lrotl with VC++ */
39 39
40#include "sha1.h" 40#include "sha1.h"
41#include "../os.h" 41#include "../os.h"
42 42
43/* 43/*
44 To obtain the highest speed on processors with 32-bit words, this code 44 To obtain the highest speed on processors with 32-bit words, this code
45 needs to determine the order in which bytes are packed into such words. 45 needs to determine the order in which bytes are packed into such words.
46 The following block of code is an attempt to capture the most obvious 46 The following block of code is an attempt to capture the most obvious
47 ways in which various environemnts specify their endian definitions. 47 ways in which various environemnts specify their endian definitions.
48 It may well fail, in which case the definitions will need to be set by 48 It may well fail, in which case the definitions will need to be set by
49 editing at the points marked **** EDIT HERE IF NECESSARY **** below. 49 editing at the points marked **** EDIT HERE IF NECESSARY **** below.
50*/ 50*/
51 51
52/* BYTE ORDER IN 32-BIT WORDS 52/* BYTE ORDER IN 32-BIT WORDS
53 53
54 To obtain the highest speed on processors with 32-bit words, this code 54 To obtain the highest speed on processors with 32-bit words, this code
55 needs to determine the byte order of the target machine. The following 55 needs to determine the byte order of the target machine. The following
56 block of code is an attempt to capture the most obvious ways in which 56 block of code is an attempt to capture the most obvious ways in which
57 various environemnts define byte order. It may well fail, in which case 57 various environemnts define byte order. It may well fail, in which case
58 the definitions will need to be set by editing at the points marked 58 the definitions will need to be set by editing at the points marked
59 **** EDIT HERE IF NECESSARY **** below. My thanks to Peter Gutmann for 59 **** EDIT HERE IF NECESSARY **** below. My thanks to Peter Gutmann for
60 some of these defines (from cryptlib). 60 some of these defines (from cryptlib).
61*/ 61*/
62 62
63#define BRG_LITTLE_ENDIAN 1234 /* byte 0 is least significant (i386) */ 63#define BRG_LITTLE_ENDIAN 1234 /* byte 0 is least significant (i386) */
64#define BRG_BIG_ENDIAN 4321 /* byte 0 is most significant (mc68k) */ 64#define BRG_BIG_ENDIAN 4321 /* byte 0 is most significant (mc68k) */
65 65
66#ifdef __BIG_ENDIAN__ 66#ifdef __BIG_ENDIAN__
67#define PLATFORM_BYTE_ORDER BRG_BIG_ENDIAN 67#define PLATFORM_BYTE_ORDER BRG_BIG_ENDIAN
68#else 68#else
69#define PLATFORM_BYTE_ORDER BRG_LITTLE_ENDIAN 69#define PLATFORM_BYTE_ORDER BRG_LITTLE_ENDIAN
70#endif 70#endif
71 71
72#define rotl32(x,n) (((x) << n) | ((x) >> (32 - n))) 72#define rotl32(x,n) (((x) << n) | ((x) >> (32 - n)))
73 73
74#if (PLATFORM_BYTE_ORDER == BRG_BIG_ENDIAN) 74#if (PLATFORM_BYTE_ORDER == BRG_BIG_ENDIAN)
75#define swap_b32(x) (x) 75#define swap_b32(x) (x)
76#else 76#else
77#define swap_b32(x) irr::os::Byteswap::byteswap(x) 77#define swap_b32(x) irr::os::Byteswap::byteswap(x)
78#endif 78#endif
79 79
80#define SHA1_MASK (SHA1_BLOCK_SIZE - 1) 80#define SHA1_MASK (SHA1_BLOCK_SIZE - 1)
81 81
82#if 1 82#if 1
83 83
84#define ch(x,y,z) (((x) & (y)) ^ (~(x) & (z))) 84#define ch(x,y,z) (((x) & (y)) ^ (~(x) & (z)))
85#define parity(x,y,z) ((x) ^ (y) ^ (z)) 85#define parity(x,y,z) ((x) ^ (y) ^ (z))
86#define maj(x,y,z) (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z))) 86#define maj(x,y,z) (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z)))
87 87
88#else /* Discovered Rich Schroeppel and Colin Plumb */ 88#else /* Discovered Rich Schroeppel and Colin Plumb */
89 89
90#define ch(x,y,z) ((z) ^ ((x) & ((y) ^ (z)))) 90#define ch(x,y,z) ((z) ^ ((x) & ((y) ^ (z))))
91#define parity(x,y,z) ((x) ^ (y) ^ (z)) 91#define parity(x,y,z) ((x) ^ (y) ^ (z))
92#define maj(x,y,z) (((x) & (y)) | ((z) & ((x) ^ (y)))) 92#define maj(x,y,z) (((x) & (y)) | ((z) & ((x) ^ (y))))
93 93
94#endif 94#endif
95 95
96/* A normal version as set out in the FIPS */ 96/* A normal version as set out in the FIPS */
97 97
98#define rnd(f,k) \ 98#define rnd(f,k) \
99 t = a; a = rotl32(a,5) + f(b,c,d) + e + k + w[i]; \ 99 t = a; a = rotl32(a,5) + f(b,c,d) + e + k + w[i]; \
100 e = d; d = c; c = rotl32(b, 30); b = t 100 e = d; d = c; c = rotl32(b, 30); b = t
101 101
102void sha1_compile(sha1_ctx ctx[1]) 102void sha1_compile(sha1_ctx ctx[1])
103{ sha1_32t w[80], i, a, b, c, d, e, t; 103{ sha1_32t w[80], i, a, b, c, d, e, t;
104 104
105 /* note that words are compiled from the buffer into 32-bit */ 105 /* note that words are compiled from the buffer into 32-bit */
106 /* words in big-endian order so an order reversal is needed */ 106 /* words in big-endian order so an order reversal is needed */
107 /* here on little endian machines */ 107 /* here on little endian machines */
108 for(i = 0; i < SHA1_BLOCK_SIZE / 4; ++i) 108 for(i = 0; i < SHA1_BLOCK_SIZE / 4; ++i)
109 w[i] = swap_b32(ctx->wbuf[i]); 109 w[i] = swap_b32(ctx->wbuf[i]);
110 110
111 for(i = SHA1_BLOCK_SIZE / 4; i < 80; ++i) 111 for(i = SHA1_BLOCK_SIZE / 4; i < 80; ++i)
112 w[i] = rotl32(w[i - 3] ^ w[i - 8] ^ w[i - 14] ^ w[i - 16], 1); 112 w[i] = rotl32(w[i - 3] ^ w[i - 8] ^ w[i - 14] ^ w[i - 16], 1);
113 113
114 a = ctx->hash[0]; 114 a = ctx->hash[0];
115 b = ctx->hash[1]; 115 b = ctx->hash[1];
116 c = ctx->hash[2]; 116 c = ctx->hash[2];
117 d = ctx->hash[3]; 117 d = ctx->hash[3];
118 e = ctx->hash[4]; 118 e = ctx->hash[4];
119 119
120 for(i = 0; i < 20; ++i) 120 for(i = 0; i < 20; ++i)
121 { 121 {
122 rnd(ch, 0x5a827999); 122 rnd(ch, 0x5a827999);
123 } 123 }
124 124
125 for(i = 20; i < 40; ++i) 125 for(i = 20; i < 40; ++i)
126 { 126 {
127 rnd(parity, 0x6ed9eba1); 127 rnd(parity, 0x6ed9eba1);
128 } 128 }
129 129
130 for(i = 40; i < 60; ++i) 130 for(i = 40; i < 60; ++i)
131 { 131 {
132 rnd(maj, 0x8f1bbcdc); 132 rnd(maj, 0x8f1bbcdc);
133 } 133 }
134 134
135 for(i = 60; i < 80; ++i) 135 for(i = 60; i < 80; ++i)
136 { 136 {
137 rnd(parity, 0xca62c1d6); 137 rnd(parity, 0xca62c1d6);
138 } 138 }
139 139
140 ctx->hash[0] += a; 140 ctx->hash[0] += a;
141 ctx->hash[1] += b; 141 ctx->hash[1] += b;
142 ctx->hash[2] += c; 142 ctx->hash[2] += c;
143 ctx->hash[3] += d; 143 ctx->hash[3] += d;
144 ctx->hash[4] += e; 144 ctx->hash[4] += e;
145} 145}
146 146
147void sha1_begin(sha1_ctx ctx[1]) 147void sha1_begin(sha1_ctx ctx[1])
148{ 148{
149 ctx->count[0] = ctx->count[1] = 0; 149 ctx->count[0] = ctx->count[1] = 0;
150 ctx->hash[0] = 0x67452301; 150 ctx->hash[0] = 0x67452301;
151 ctx->hash[1] = 0xefcdab89; 151 ctx->hash[1] = 0xefcdab89;
152 ctx->hash[2] = 0x98badcfe; 152 ctx->hash[2] = 0x98badcfe;
153 ctx->hash[3] = 0x10325476; 153 ctx->hash[3] = 0x10325476;
154 ctx->hash[4] = 0xc3d2e1f0; 154 ctx->hash[4] = 0xc3d2e1f0;
155} 155}
156 156
157/* SHA1 hash data in an array of bytes into hash buffer and */ 157/* SHA1 hash data in an array of bytes into hash buffer and */
158/* call the hash_compile function as required. */ 158/* call the hash_compile function as required. */
159 159
160void sha1_hash(const unsigned char data[], unsigned long len, sha1_ctx ctx[1]) 160void sha1_hash(const unsigned char data[], unsigned long len, sha1_ctx ctx[1])
161{ sha1_32t pos = (sha1_32t)(ctx->count[0] & SHA1_MASK), 161{ sha1_32t pos = (sha1_32t)(ctx->count[0] & SHA1_MASK),
162 space = SHA1_BLOCK_SIZE - pos; 162 space = SHA1_BLOCK_SIZE - pos;
163 const unsigned char *sp = data; 163 const unsigned char *sp = data;
164 164
165 if((ctx->count[0] += len) < len) 165 if((ctx->count[0] += len) < len)
166 ++(ctx->count[1]); 166 ++(ctx->count[1]);
167 167
168 while(len >= space) /* tranfer whole blocks if possible */ 168 while(len >= space) /* tranfer whole blocks if possible */
169 { 169 {
170 memcpy(((unsigned char*)ctx->wbuf) + pos, sp, space); 170 memcpy(((unsigned char*)ctx->wbuf) + pos, sp, space);
171 sp += space; len -= space; space = SHA1_BLOCK_SIZE; pos = 0; 171 sp += space; len -= space; space = SHA1_BLOCK_SIZE; pos = 0;
172 sha1_compile(ctx); 172 sha1_compile(ctx);
173 } 173 }
174 174
175 /*lint -e{803} conceivable data overrun */ 175 /*lint -e{803} conceivable data overrun */
176 memcpy(((unsigned char*)ctx->wbuf) + pos, sp, len); 176 memcpy(((unsigned char*)ctx->wbuf) + pos, sp, len);
177} 177}
178 178
179/* SHA1 final padding and digest calculation */ 179/* SHA1 final padding and digest calculation */
180 180
181#if (PLATFORM_BYTE_ORDER == BRG_LITTLE_ENDIAN) 181#if (PLATFORM_BYTE_ORDER == BRG_LITTLE_ENDIAN)
182static sha1_32t mask[4] = 182static sha1_32t mask[4] =
183 { 0x00000000, 0x000000ff, 0x0000ffff, 0x00ffffff }; 183 { 0x00000000, 0x000000ff, 0x0000ffff, 0x00ffffff };
184static sha1_32t bits[4] = 184static sha1_32t bits[4] =
185 { 0x00000080, 0x00008000, 0x00800000, 0x80000000 }; 185 { 0x00000080, 0x00008000, 0x00800000, 0x80000000 };
186#else 186#else
187static sha1_32t mask[4] = 187static sha1_32t mask[4] =
188 { 0x00000000, 0xff000000, 0xffff0000, 0xffffff00 }; 188 { 0x00000000, 0xff000000, 0xffff0000, 0xffffff00 };
189static sha1_32t bits[4] = 189static sha1_32t bits[4] =
190 { 0x80000000, 0x00800000, 0x00008000, 0x00000080 }; 190 { 0x80000000, 0x00800000, 0x00008000, 0x00000080 };
191#endif 191#endif
192 192
193void sha1_end(unsigned char hval[], sha1_ctx ctx[1]) 193void sha1_end(unsigned char hval[], sha1_ctx ctx[1])
194{ sha1_32t i = (sha1_32t)(ctx->count[0] & SHA1_MASK); 194{ sha1_32t i = (sha1_32t)(ctx->count[0] & SHA1_MASK);
195 195
196 /* mask out the rest of any partial 32-bit word and then set */ 196 /* mask out the rest of any partial 32-bit word and then set */
197 /* the next byte to 0x80. On big-endian machines any bytes in */ 197 /* the next byte to 0x80. On big-endian machines any bytes in */
198 /* the buffer will be at the top end of 32 bit words, on little */ 198 /* the buffer will be at the top end of 32 bit words, on little */
199 /* endian machines they will be at the bottom. Hence the AND */ 199 /* endian machines they will be at the bottom. Hence the AND */
200 /* and OR masks above are reversed for little endian systems */ 200 /* and OR masks above are reversed for little endian systems */
201 /* Note that we can always add the first padding byte at this */ 201 /* Note that we can always add the first padding byte at this */
202 /* point because the buffer always has at least one empty slot */ 202 /* point because the buffer always has at least one empty slot */
203 ctx->wbuf[i >> 2] = (ctx->wbuf[i >> 2] & mask[i & 3]) | bits[i & 3]; 203 ctx->wbuf[i >> 2] = (ctx->wbuf[i >> 2] & mask[i & 3]) | bits[i & 3];
204 204
205 /* we need 9 or more empty positions, one for the padding byte */ 205 /* we need 9 or more empty positions, one for the padding byte */
206 /* (above) and eight for the length count. If there is not */ 206 /* (above) and eight for the length count. If there is not */
207 /* enough space pad and empty the buffer */ 207 /* enough space pad and empty the buffer */
208 if(i > SHA1_BLOCK_SIZE - 9) 208 if(i > SHA1_BLOCK_SIZE - 9)
209 { 209 {
210 if(i < 60) ctx->wbuf[15] = 0; 210 if(i < 60) ctx->wbuf[15] = 0;
211 sha1_compile(ctx); 211 sha1_compile(ctx);
212 i = 0; 212 i = 0;
213 } 213 }
214 else /* compute a word index for the empty buffer positions */ 214 else /* compute a word index for the empty buffer positions */
215 i = (i >> 2) + 1; 215 i = (i >> 2) + 1;
216 216
217 while(i < 14) /* and zero pad all but last two positions */ 217 while(i < 14) /* and zero pad all but last two positions */
218 ctx->wbuf[i++] = 0; 218 ctx->wbuf[i++] = 0;
219 219
220 /* assemble the eight byte counter in in big-endian format */ 220 /* assemble the eight byte counter in in big-endian format */
221 ctx->wbuf[14] = swap_b32((ctx->count[1] << 3) | (ctx->count[0] >> 29)); 221 ctx->wbuf[14] = swap_b32((ctx->count[1] << 3) | (ctx->count[0] >> 29));
222 ctx->wbuf[15] = swap_b32(ctx->count[0] << 3); 222 ctx->wbuf[15] = swap_b32(ctx->count[0] << 3);
223 223
224 sha1_compile(ctx); 224 sha1_compile(ctx);
225 225
226 /* extract the hash value as bytes in case the hash buffer is */ 226 /* extract the hash value as bytes in case the hash buffer is */
227 /* misaligned for 32-bit words */ 227 /* misaligned for 32-bit words */
228 for(i = 0; i < SHA1_DIGEST_SIZE; ++i) 228 for(i = 0; i < SHA1_DIGEST_SIZE; ++i)
229 hval[i] = (unsigned char)(ctx->hash[i >> 2] >> (8 * (~i & 3))); 229 hval[i] = (unsigned char)(ctx->hash[i >> 2] >> (8 * (~i & 3)));
230} 230}
231 231
232void sha1(unsigned char hval[], const unsigned char data[], unsigned long len) 232void sha1(unsigned char hval[], const unsigned char data[], unsigned long len)
233{ sha1_ctx cx[1]; 233{ sha1_ctx cx[1];
234 234
235 sha1_begin(cx); sha1_hash(data, len, cx); sha1_end(hval, cx); 235 sha1_begin(cx); sha1_hash(data, len, cx); sha1_end(hval, cx);
236} 236}
237 237