1 ! Copyright (C) 2008 Doug Coleman.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors arrays checksums checksums.common
4 checksums.stream combinators combinators.smart fry grouping
5 io.binary kernel literals locals math math.bitwise math.ranges
6 sequences sequences.generalizations sequences.private ;
10 INSTANCE: sha1 stream-checksum
15 INSTANCE: sha-224 stream-checksum
16 INSTANCE: sha-256 stream-checksum
18 TUPLE: sha1-state < checksum-state
22 { word-size fixnum } ;
24 CONSTANT: initial-H-sha1
35 20 0x5a827999 <repetition>
36 20 0x6ed9eba1 <repetition>
37 20 0x8f1bbcdc <repetition>
38 20 0xca62c1d6 <repetition>
42 TUPLE: sha2-state < checksum-state
45 { word-size fixnum } ;
47 TUPLE: sha2-short < sha2-state ;
49 TUPLE: sha2-long < sha2-state ;
51 TUPLE: sha-224-state < sha2-short ;
53 TUPLE: sha-256-state < sha2-short ;
71 CONSTANT: initial-H-224
73 0xc1059ed8 0x367cd507 0x3070dd17 0xf70e5939
74 0xffc00b31 0x68581511 0x64f98fa7 0xbefa4fa4
77 CONSTANT: initial-H-256
79 0x6a09e667 0xbb67ae85 0x3c6ef372 0xa54ff53a
80 0x510e527f 0x9b05688c 0x1f83d9ab 0x5be0cd19
83 CONSTANT: initial-H-384
95 CONSTANT: initial-H-512
109 0x428a2f98 0x71374491 0xb5c0fbcf 0xe9b5dba5
110 0x3956c25b 0x59f111f1 0x923f82a4 0xab1c5ed5
111 0xd807aa98 0x12835b01 0x243185be 0x550c7dc3
112 0x72be5d74 0x80deb1fe 0x9bdc06a7 0xc19bf174
113 0xe49b69c1 0xefbe4786 0x0fc19dc6 0x240ca1cc
114 0x2de92c6f 0x4a7484aa 0x5cb0a9dc 0x76f988da
115 0x983e5152 0xa831c66d 0xb00327c8 0xbf597fc7
116 0xc6e00bf3 0xd5a79147 0x06ca6351 0x14292967
117 0x27b70a85 0x2e1b2138 0x4d2c6dfc 0x53380d13
118 0x650a7354 0x766a0abb 0x81c2c92e 0x92722c85
119 0xa2bfe8a1 0xa81a664b 0xc24b8b70 0xc76c51a3
120 0xd192e819 0xd6990624 0xf40e3585 0x106aa070
121 0x19a4c116 0x1e376c08 0x2748774c 0x34b0bcb5
122 0x391c0cb3 0x4ed8aa4a 0x5b9cca4f 0x682e6ff3
123 0x748f82ee 0x78a5636f 0x84c87814 0x8cc70208
124 0x90befffa 0xa4506ceb 0xbef9a3f7 0xc67178f2
130 0x428a2f98d728ae22 0x7137449123ef65cd 0xb5c0fbcfec4d3b2f 0xe9b5dba58189dbbc
131 0x3956c25bf348b538 0x59f111f1b605d019 0x923f82a4af194f9b 0xab1c5ed5da6d8118
132 0xd807aa98a3030242 0x12835b0145706fbe 0x243185be4ee4b28c 0x550c7dc3d5ffb4e2
133 0x72be5d74f27b896f 0x80deb1fe3b1696b1 0x9bdc06a725c71235 0xc19bf174cf692694
134 0xe49b69c19ef14ad2 0xefbe4786384f25e3 0x0fc19dc68b8cd5b5 0x240ca1cc77ac9c65
135 0x2de92c6f592b0275 0x4a7484aa6ea6e483 0x5cb0a9dcbd41fbd4 0x76f988da831153b5
136 0x983e5152ee66dfab 0xa831c66d2db43210 0xb00327c898fb213f 0xbf597fc7beef0ee4
137 0xc6e00bf33da88fc2 0xd5a79147930aa725 0x06ca6351e003826f 0x142929670a0e6e70
138 0x27b70a8546d22ffc 0x2e1b21385c26c926 0x4d2c6dfc5ac42aed 0x53380d139d95b3df
139 0x650a73548baf63de 0x766a0abb3c77b2a8 0x81c2c92e47edaee6 0x92722c851482353b
140 0xa2bfe8a14cf10364 0xa81a664bbc423001 0xc24b8b70d0f89791 0xc76c51a30654be30
141 0xd192e819d6ef5218 0xd69906245565a910 0xf40e35855771202a 0x106aa07032bbd1b8
142 0x19a4c116b8d2d0c8 0x1e376c085141ab53 0x2748774cdf8eeb99 0x34b0bcb5e19b48a8
143 0x391c0cb3c5c95a63 0x4ed8aa4ae3418acb 0x5b9cca4f7763e373 0x682e6ff3d6b2b8a3
144 0x748f82ee5defb2fc 0x78a5636f43172f60 0x84c87814a1f0ab72 0x8cc702081a6439ec
145 0x90befffa23631e28 0xa4506cebde82bde9 0xbef9a3f7b2c67915 0xc67178f2e372532b
146 0xca273eceea26619c 0xd186b8c721c0c207 0xeada7dd6cde0eb1e 0xf57d4f7fee6ed178
147 0x06f067aa72176fba 0x0a637dc5a2c898a6 0x113f9804bef90dae 0x1b710b35131c471b
148 0x28db77f523047d84 0x32caab7b40c72493 0x3c9ebe0a15c9bebc 0x431d67c49c100d4c
149 0x4cc5d4becb3e42b6 0x597f299cfc657e2a 0x5fcb6fab3ad6faec 0x6c44198c4a475817
154 : <sha1-state> ( -- sha1-state )
155 sha1-state new-checksum-state
161 : <sha-224-state> ( -- sha2-state )
162 sha-224-state new-checksum-state
168 : <sha-256-state> ( -- sha2-state )
169 sha-256-state new-checksum-state
175 M: sha1 initialize-checksum-state drop <sha1-state> ;
177 M: sha-224 initialize-checksum-state drop <sha-224-state> ;
179 M: sha-256 initialize-checksum-state drop <sha-256-state> ;
186 ] [ bitxor ] reduce-outputs ; inline
193 ] [ bitxor ] reduce-outputs ; inline
199 [ -22 bitroll-32 ] tri
200 ] [ bitxor ] reduce-outputs ; inline
206 [ -25 bitroll-32 ] tri
207 ] [ bitxor ] reduce-outputs ; inline
214 ] [ bitxor ] reduce-outputs ; inline
221 ] [ bitxor ] reduce-outputs ; inline
227 [ -39 bitroll-64 ] tri
228 ] [ bitxor ] reduce-outputs ; inline
234 [ -41 bitroll-64 ] tri
235 ] [ bitxor ] reduce-outputs ; inline
237 : prepare-M-256 ( n seq -- )
239 [ [ 16 - ] dip nth-unsafe ]
240 [ [ 15 - ] dip nth-unsafe s0-256 ]
241 [ [ 7 - ] dip nth-unsafe ]
242 [ [ 2 - ] dip nth-unsafe s1-256 w+ w+ w+ ]
244 } 2cleave set-nth-unsafe ; inline
246 : prepare-M-512 ( n seq -- )
248 [ [ 16 - ] dip nth-unsafe ]
249 [ [ 15 - ] dip nth-unsafe s0-512 ]
250 [ [ 7 - ] dip nth-unsafe ]
251 [ [ 2 - ] dip nth-unsafe s1-512 w+ w+ w+ ]
253 } 2cleave set-nth-unsafe ; inline
256 [ bitxor bitand ] keep bitxor ; inline
258 : maj ( x y z -- x' )
259 [ [ bitand ] [ bitor ] 2bi ] dip bitand bitor ; inline
261 : slice3 ( n seq -- a b c )
262 [ dup 3 + ] dip <slice> first3 ; inline
264 GENERIC: pad-initial-bytes ( string sha2 -- padded-string )
266 :: T1-256 ( n M H sha2 -- T1 )
268 n sha2 K>> nth-unsafe +
270 e H nth-unsafe S1-256 w+
271 h H nth-unsafe w+ ; inline
274 [ a swap nth-unsafe S0-256 ]
275 [ a swap slice3 maj w+ ] bi ; inline
277 :: T1-512 ( n M H sha2 -- T1 )
279 n sha2 K>> nth-unsafe +
281 e H nth-unsafe S1-512 w+
282 h H nth-unsafe w+ ; inline
285 [ a swap nth-unsafe S0-512 ]
286 [ a swap slice3 maj w+ ] bi ; inline
288 : update-H ( T1 T2 H -- )
289 h g pick exchange-unsafe
290 g f pick exchange-unsafe
291 f e pick exchange-unsafe
292 pick d pick nth-unsafe w+ e pick set-nth-unsafe
293 d c pick exchange-unsafe
294 c b pick exchange-unsafe
295 b a pick exchange-unsafe
296 [ w+ a ] dip set-nth-unsafe ; inline
298 : prepare-message-schedule ( seq sha2 -- w-seq )
299 [ word-size>> <groups> [ be> ] map ]
301 block-size>> [ 0 pad-tail 16 ] keep [a,b) over
302 '[ _ prepare-M-256 ] each
305 :: process-chunk ( M block-size cloned-H sha2 -- )
307 M cloned-H sha2 T1-256
311 sha2 [ cloned-H [ w+ ] 2map ] change-H drop ; inline
313 M: sha2-short checksum-block
314 [ prepare-message-schedule ]
315 [ [ block-size>> ] [ H>> clone ] [ ] tri process-chunk ] bi ;
317 : sequence>byte-array ( seq n -- bytes )
318 '[ _ >be ] map B{ } concat-as ; inline
320 : sha1>checksum ( sha2 -- bytes )
321 H>> 4 sequence>byte-array ; inline
323 : sha-224>checksum ( sha2 -- bytes )
324 H>> 7 head 4 sequence>byte-array ; inline
326 : sha-256>checksum ( sha2 -- bytes )
327 H>> 4 sequence>byte-array ; inline
329 : pad-last-short-block ( state -- )
330 [ bytes>> t ] [ bytes-read>> pad-last-block ] [ ] tri
331 [ checksum-block ] curry each ; inline
335 M: sha-224-state get-checksum
337 [ pad-last-short-block ] [ sha-224>checksum ] bi ;
339 M: sha-256-state get-checksum
341 [ pad-last-short-block ] [ sha-256>checksum ] bi ;
343 M: sha-224 checksum-stream ( stream checksum -- byte-array )
345 [ <sha-224-state> ] dip add-checksum-stream get-checksum ;
347 M: sha-256 checksum-stream ( stream checksum -- byte-array )
349 [ <sha-256-state> ] dip add-checksum-stream get-checksum ;
351 : sha1-W ( t seq -- )
353 [ [ 3 - ] dip nth-unsafe ]
354 [ [ 8 - ] dip nth-unsafe bitxor ]
355 [ [ 14 - ] dip nth-unsafe bitxor ]
356 [ [ 16 - ] dip nth-unsafe bitxor 1 bitroll-32 ]
358 } 2cleave set-nth-unsafe ; inline
360 : prepare-sha1-message-schedule ( seq -- w-seq )
361 4 <groups> [ be> ] map
362 80 0 pad-tail 16 80 [a,b) over
363 '[ _ sha1-W ] each ; inline
365 : sha1-f ( B C D n -- f_nbcd )
368 { 0 [ [ over bitnot ] dip bitand [ bitand ] dip bitor ] }
369 { 1 [ bitxor bitxor ] }
370 { 2 [ 2dup bitand [ pick bitand [ bitand ] dip ] dip bitor bitor ] }
371 { 3 [ bitxor bitxor ] }
374 :: inner-loop ( n H W K -- temp )
390 ] sum-outputs 32 bits ; inline
392 :: process-sha1-chunk ( H W K state -- )
395 d H nth-unsafe e H set-nth-unsafe
396 c H nth-unsafe d H set-nth-unsafe
397 b H nth-unsafe 30 bitroll-32 c H set-nth-unsafe
398 a H nth-unsafe b H set-nth-unsafe
401 state [ H [ w+ ] 2map ] change-H drop ; inline
403 M:: sha1-state checksum-block ( bytes state -- )
404 bytes prepare-sha1-message-schedule state W<<
406 state [ H>> clone ] [ W>> ] [ K>> ] tri state process-sha1-chunk ;
408 M: sha1-state get-checksum
410 [ pad-last-short-block ] [ sha-256>checksum ] bi ;
412 M: sha1 checksum-stream ( stream checksum -- byte-array )
414 [ <sha1-state> ] dip add-checksum-stream get-checksum ;