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comparison dcrypt/crypto/hashes/SHA256.d @ 28:ad687db713a4

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Further reworked the code for hash padding. Replaced all instances of 'char[]' with 'string' and removed a few 'const' modifiers as per Glenn Haecker's patch for D2 compatibility. Updated CONTRIBUTORS file.
author Thomas Dixon <reikon@reikon.us>
date Sun, 10 May 2009 22:38:48 -0400
parents 8b5eaf3c2979
children
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27:8b5eaf3c2979 28:ad687db713a4
16 * Conforms: FIPS-180-2 16 * Conforms: FIPS-180-2
17 * References: http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf 17 * References: http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
18 */ 18 */
19 class SHA256 : Hash 19 class SHA256 : Hash
20 { 20 {
21 private const uint[] K = [ 21 private static const uint[] K = [
22 0x428a2f98u, 0x71374491u, 0xb5c0fbcfu, 0xe9b5dba5u, 22 0x428a2f98u, 0x71374491u, 0xb5c0fbcfu, 0xe9b5dba5u,
23 0x3956c25bu, 0x59f111f1u, 0x923f82a4u, 0xab1c5ed5u, 23 0x3956c25bu, 0x59f111f1u, 0x923f82a4u, 0xab1c5ed5u,
24 0xd807aa98u, 0x12835b01u, 0x243185beu, 0x550c7dc3u, 24 0xd807aa98u, 0x12835b01u, 0x243185beu, 0x550c7dc3u,
25 0x72be5d74u, 0x80deb1feu, 0x9bdc06a7u, 0xc19bf174u, 25 0x72be5d74u, 0x80deb1feu, 0x9bdc06a7u, 0xc19bf174u,
26 0xe49b69c1u, 0xefbe4786u, 0x0fc19dc6u, 0x240ca1ccu, 26 0xe49b69c1u, 0xefbe4786u, 0x0fc19dc6u, 0x240ca1ccu,
35 0x391c0cb3u, 0x4ed8aa4au, 0x5b9cca4fu, 0x682e6ff3u, 35 0x391c0cb3u, 0x4ed8aa4au, 0x5b9cca4fu, 0x682e6ff3u,
36 0x748f82eeu, 0x78a5636fu, 0x84c87814u, 0x8cc70208u, 36 0x748f82eeu, 0x78a5636fu, 0x84c87814u, 0x8cc70208u,
37 0x90befffau, 0xa4506cebu, 0xbef9a3f7u, 0xc67178f2u 37 0x90befffau, 0xa4506cebu, 0xbef9a3f7u, 0xc67178f2u
38 ]; 38 ];
39 39
40 protected uint h0, h1, h2, h3, h4, h5, h6, h7; 40 protected uint h0, h1, h2, h3, h4, h5, h6, h7;
41 41
42 this (void[] input_=null) 42 this (void[] input_=null)
43 { 43 {
44 reset(); 44 reset();
45 super(input_); 45 super(input_);
53 uint digestSize() 53 uint digestSize()
54 { 54 {
55 return 32; 55 return 32;
56 } 56 }
57 57
58 char[] name() 58 string name()
59 { 59 {
60 return "SHA256"; 60 return "SHA256";
61 } 61 }
62 62
63 void transform(ubyte[] input) 63 void transform(ubyte[] input)
133 return Bitwise.rotateRight(x,17)^Bitwise.rotateRight(x,19)^(x >> 10); 133 return Bitwise.rotateRight(x,17)^Bitwise.rotateRight(x,19)^(x >> 10);
134 } 134 }
135 135
136 ubyte[] digest() 136 ubyte[] digest()
137 { 137 {
138 padMessage(MODE_SHA); 138 padMessage(MODE_SHA);
139 ubyte[] result = new ubyte[digestSize]; 139 ubyte[] result = new ubyte[digestSize];
140 140
141 result[0..4] = ByteConverter.BigEndian.from!(uint)(h0); 141 result[0..4] = ByteConverter.BigEndian.from!(uint)(h0);
142 result[4..8] = ByteConverter.BigEndian.from!(uint)(h1); 142 result[4..8] = ByteConverter.BigEndian.from!(uint)(h1);
143 result[8..12] = ByteConverter.BigEndian.from!(uint)(h2); 143 result[8..12] = ByteConverter.BigEndian.from!(uint)(h2);
181 181
182 debug (UnitTest) 182 debug (UnitTest)
183 { 183 {
184 unittest 184 unittest
185 { 185 {
186 static const char[][] test_inputs = [ 186 static string[] test_inputs = [
187 "", 187 "",
188 "abc", 188 "abc",
189 "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq", 189 "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
190 "a" 190 "a"
191 ]; 191 ];
192 192
193 static const int[] test_repeat = [ 193 static int[] test_repeat = [
194 1, 1, 1, 1000000 194 1, 1, 1, 1000000
195 ]; 195 ];
196 196
197 static const char[][] test_results = [ 197 static string[] test_results = [
198 "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855", 198 "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
199 "ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad", 199 "ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad",
200 "248d6a61d20638b8e5c026930c3e6039a33ce45964ff2167f6ecedd419db06c1", 200 "248d6a61d20638b8e5c026930c3e6039a33ce45964ff2167f6ecedd419db06c1",
201 "cdc76e5c9914fb9281a1c7e284d73e67f1809a48a497200e046d39ccc7112cd0" 201 "cdc76e5c9914fb9281a1c7e284d73e67f1809a48a497200e046d39ccc7112cd0"
202 ]; 202 ];
203 203
204 SHA256 h = new SHA256(); 204 SHA256 h = new SHA256();
205 foreach (uint i, char[] input; test_inputs) 205 foreach (uint i, string input; test_inputs)
206 { 206 {
207 for (int j = 0; j < test_repeat[i]; j++) 207 for (int j = 0; j < test_repeat[i]; j++)
208 h.update(input); 208 h.update(input);
209 char[] digest = h.hexDigest(); 209 string digest = h.hexDigest();
210 assert(digest == test_results[i], 210 assert(digest == test_results[i],
211 h.name~": ("~digest~") != ("~test_results[i]~")"); 211 h.name~": ("~digest~") != ("~test_results[i]~")");
212 } 212 }
213 } 213 }
214 } 214 }