4 * Written by Jari Ruusu, April 16 2001
6 * Copyright 2001 by Jari Ruusu.
7 * Redistribution of this file is permitted under the GNU Public License.
11 #include <linux/string.h>
12 #include <linux/types.h>
15 #include <sys/types.h>
19 /* Define one or more of these. If none is defined, you get all of them */
20 #if !defined(SHA256_NEEDED)&&!defined(SHA512_NEEDED)&&!defined(SHA384_NEEDED)
21 # define SHA256_NEEDED 1
22 # define SHA512_NEEDED 1
23 # define SHA384_NEEDED 1
26 #if defined(SHA256_NEEDED)
27 static const u_int32_t sha256_hashInit
[8] = {
28 0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c,
29 0x1f83d9ab, 0x5be0cd19
31 static const u_int32_t sha256_K
[64] = {
32 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1,
33 0x923f82a4, 0xab1c5ed5, 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
34 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174, 0xe49b69c1, 0xefbe4786,
35 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
36 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147,
37 0x06ca6351, 0x14292967, 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
38 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85, 0xa2bfe8a1, 0xa81a664b,
39 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
40 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a,
41 0x5b9cca4f, 0x682e6ff3, 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
42 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
46 #if defined(SHA512_NEEDED)
47 static const u_int64_t sha512_hashInit
[8] = {
48 0x6a09e667f3bcc908ULL
, 0xbb67ae8584caa73bULL
, 0x3c6ef372fe94f82bULL
,
49 0xa54ff53a5f1d36f1ULL
, 0x510e527fade682d1ULL
, 0x9b05688c2b3e6c1fULL
,
50 0x1f83d9abfb41bd6bULL
, 0x5be0cd19137e2179ULL
54 #if defined(SHA384_NEEDED)
55 static const u_int64_t sha384_hashInit
[8] = {
56 0xcbbb9d5dc1059ed8ULL
, 0x629a292a367cd507ULL
, 0x9159015a3070dd17ULL
,
57 0x152fecd8f70e5939ULL
, 0x67332667ffc00b31ULL
, 0x8eb44a8768581511ULL
,
58 0xdb0c2e0d64f98fa7ULL
, 0x47b5481dbefa4fa4ULL
62 #if defined(SHA512_NEEDED) || defined(SHA384_NEEDED)
63 static const u_int64_t sha512_K
[80] = {
64 0x428a2f98d728ae22ULL
, 0x7137449123ef65cdULL
, 0xb5c0fbcfec4d3b2fULL
,
65 0xe9b5dba58189dbbcULL
, 0x3956c25bf348b538ULL
, 0x59f111f1b605d019ULL
,
66 0x923f82a4af194f9bULL
, 0xab1c5ed5da6d8118ULL
, 0xd807aa98a3030242ULL
,
67 0x12835b0145706fbeULL
, 0x243185be4ee4b28cULL
, 0x550c7dc3d5ffb4e2ULL
,
68 0x72be5d74f27b896fULL
, 0x80deb1fe3b1696b1ULL
, 0x9bdc06a725c71235ULL
,
69 0xc19bf174cf692694ULL
, 0xe49b69c19ef14ad2ULL
, 0xefbe4786384f25e3ULL
,
70 0x0fc19dc68b8cd5b5ULL
, 0x240ca1cc77ac9c65ULL
, 0x2de92c6f592b0275ULL
,
71 0x4a7484aa6ea6e483ULL
, 0x5cb0a9dcbd41fbd4ULL
, 0x76f988da831153b5ULL
,
72 0x983e5152ee66dfabULL
, 0xa831c66d2db43210ULL
, 0xb00327c898fb213fULL
,
73 0xbf597fc7beef0ee4ULL
, 0xc6e00bf33da88fc2ULL
, 0xd5a79147930aa725ULL
,
74 0x06ca6351e003826fULL
, 0x142929670a0e6e70ULL
, 0x27b70a8546d22ffcULL
,
75 0x2e1b21385c26c926ULL
, 0x4d2c6dfc5ac42aedULL
, 0x53380d139d95b3dfULL
,
76 0x650a73548baf63deULL
, 0x766a0abb3c77b2a8ULL
, 0x81c2c92e47edaee6ULL
,
77 0x92722c851482353bULL
, 0xa2bfe8a14cf10364ULL
, 0xa81a664bbc423001ULL
,
78 0xc24b8b70d0f89791ULL
, 0xc76c51a30654be30ULL
, 0xd192e819d6ef5218ULL
,
79 0xd69906245565a910ULL
, 0xf40e35855771202aULL
, 0x106aa07032bbd1b8ULL
,
80 0x19a4c116b8d2d0c8ULL
, 0x1e376c085141ab53ULL
, 0x2748774cdf8eeb99ULL
,
81 0x34b0bcb5e19b48a8ULL
, 0x391c0cb3c5c95a63ULL
, 0x4ed8aa4ae3418acbULL
,
82 0x5b9cca4f7763e373ULL
, 0x682e6ff3d6b2b8a3ULL
, 0x748f82ee5defb2fcULL
,
83 0x78a5636f43172f60ULL
, 0x84c87814a1f0ab72ULL
, 0x8cc702081a6439ecULL
,
84 0x90befffa23631e28ULL
, 0xa4506cebde82bde9ULL
, 0xbef9a3f7b2c67915ULL
,
85 0xc67178f2e372532bULL
, 0xca273eceea26619cULL
, 0xd186b8c721c0c207ULL
,
86 0xeada7dd6cde0eb1eULL
, 0xf57d4f7fee6ed178ULL
, 0x06f067aa72176fbaULL
,
87 0x0a637dc5a2c898a6ULL
, 0x113f9804bef90daeULL
, 0x1b710b35131c471bULL
,
88 0x28db77f523047d84ULL
, 0x32caab7b40c72493ULL
, 0x3c9ebe0a15c9bebcULL
,
89 0x431d67c49c100d4cULL
, 0x4cc5d4becb3e42b6ULL
, 0x597f299cfc657e2aULL
,
90 0x5fcb6fab3ad6faecULL
, 0x6c44198c4a475817ULL
94 #define Ch(x,y,z) (((x) & (y)) ^ ((~(x)) & (z)))
95 #define Maj(x,y,z) (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z)))
96 #define R(x,y) ((y) >> (x))
98 #if defined(SHA256_NEEDED)
99 void sha256_init(sha256_context
*ctx
)
101 memcpy(&ctx
->sha_H
[0], &sha256_hashInit
[0], sizeof(ctx
->sha_H
));
106 #define S(x,y) (((y) >> (x)) | ((y) << (32 - (x))))
107 #define uSig0(x) ((S(2,(x))) ^ (S(13,(x))) ^ (S(22,(x))))
108 #define uSig1(x) ((S(6,(x))) ^ (S(11,(x))) ^ (S(25,(x))))
109 #define lSig0(x) ((S(7,(x))) ^ (S(18,(x))) ^ (R(3,(x))))
110 #define lSig1(x) ((S(17,(x))) ^ (S(19,(x))) ^ (R(10,(x))))
112 static void sha256_transform(sha256_context
*ctx
, const unsigned char *datap
)
115 u_int32_t a
, b
, c
, d
, e
, f
, g
, h
;
116 u_int32_t T1
, T2
, W
[64], Wm2
, Wm15
;
118 /* read the data, big endian byte order */
121 W
[j
] = (((u_int32_t
)(datap
[0]))<<24) | (((u_int32_t
)(datap
[1]))<<16) |
122 (((u_int32_t
)(datap
[2]))<<8 ) | ((u_int32_t
)(datap
[3]));
126 /* initialize variables a...h */
136 /* apply compression function */
142 W
[j
] = lSig1(Wm2
) + W
[j
- 7] + lSig0(Wm15
) + W
[j
- 16];
144 T1
= h
+ uSig1(e
) + Ch(e
,f
,g
) + sha256_K
[j
] + W
[j
];
145 T2
= uSig0(a
) + Maj(a
,b
,c
);
152 /* compute intermediate hash value */
165 void sha256_write(sha256_context
*ctx
, const unsigned char *datap
, int length
)
168 if(!ctx
->sha_bufCnt
) {
169 while(length
>= sizeof(ctx
->sha_out
)) {
170 sha256_transform(ctx
, datap
);
171 datap
+= sizeof(ctx
->sha_out
);
172 length
-= sizeof(ctx
->sha_out
);
176 ctx
->sha_out
[ctx
->sha_bufCnt
] = *datap
++;
178 if(++ctx
->sha_bufCnt
== sizeof(ctx
->sha_out
)) {
179 sha256_transform(ctx
, &ctx
->sha_out
[0]);
185 void sha256_final(sha256_context
*ctx
)
190 unsigned char padByte
, *datap
;
192 bitLength
= (ctx
->sha_blocks
<< 9) | (ctx
->sha_bufCnt
<< 3);
194 sha256_write(ctx
, &padByte
, 1);
196 /* pad extra space with zeroes */
198 while(ctx
->sha_bufCnt
!= 56) {
199 sha256_write(ctx
, &padByte
, 1);
202 /* write bit length, big endian byte order */
203 ctx
->sha_out
[56] = bitLength
>> 56;
204 ctx
->sha_out
[57] = bitLength
>> 48;
205 ctx
->sha_out
[58] = bitLength
>> 40;
206 ctx
->sha_out
[59] = bitLength
>> 32;
207 ctx
->sha_out
[60] = bitLength
>> 24;
208 ctx
->sha_out
[61] = bitLength
>> 16;
209 ctx
->sha_out
[62] = bitLength
>> 8;
210 ctx
->sha_out
[63] = bitLength
;
211 sha256_transform(ctx
, &ctx
->sha_out
[0]);
213 /* return results in ctx->sha_out[0...31] */
214 datap
= &ctx
->sha_out
[0];
225 /* clear sensitive information */
226 memset(&ctx
->sha_out
[32], 0, sizeof(sha256_context
) - 32);
229 void sha256_hash_buffer(unsigned char *ib
, int ile
, unsigned char *ob
, int ole
)
235 if(ole
> 32) ole
= 32;
237 sha256_write(&ctx
, ib
, ile
);
239 memcpy(ob
, &ctx
.sha_out
[0], ole
);
240 memset(&ctx
, 0, sizeof(ctx
));
245 #if defined(SHA512_NEEDED)
246 void sha512_init(sha512_context
*ctx
)
248 memcpy(&ctx
->sha_H
[0], &sha512_hashInit
[0], sizeof(ctx
->sha_H
));
250 ctx
->sha_blocksMSB
= 0;
255 #if defined(SHA512_NEEDED) || defined(SHA384_NEEDED)
261 #define S(x,y) (((y) >> (x)) | ((y) << (64 - (x))))
262 #define uSig0(x) ((S(28,(x))) ^ (S(34,(x))) ^ (S(39,(x))))
263 #define uSig1(x) ((S(14,(x))) ^ (S(18,(x))) ^ (S(41,(x))))
264 #define lSig0(x) ((S(1,(x))) ^ (S(8,(x))) ^ (R(7,(x))))
265 #define lSig1(x) ((S(19,(x))) ^ (S(61,(x))) ^ (R(6,(x))))
267 static void sha512_transform(sha512_context
*ctx
, const unsigned char *datap
)
270 u_int64_t a
, b
, c
, d
, e
, f
, g
, h
;
271 u_int64_t T1
, T2
, W
[80], Wm2
, Wm15
;
273 /* read the data, big endian byte order */
276 W
[j
] = (((u_int64_t
)(datap
[0]))<<56) | (((u_int64_t
)(datap
[1]))<<48) |
277 (((u_int64_t
)(datap
[2]))<<40) | (((u_int64_t
)(datap
[3]))<<32) |
278 (((u_int64_t
)(datap
[4]))<<24) | (((u_int64_t
)(datap
[5]))<<16) |
279 (((u_int64_t
)(datap
[6]))<<8 ) | ((u_int64_t
)(datap
[7]));
283 /* initialize variables a...h */
293 /* apply compression function */
299 W
[j
] = lSig1(Wm2
) + W
[j
- 7] + lSig0(Wm15
) + W
[j
- 16];
301 T1
= h
+ uSig1(e
) + Ch(e
,f
,g
) + sha512_K
[j
] + W
[j
];
302 T2
= uSig0(a
) + Maj(a
,b
,c
);
309 /* compute intermediate hash value */
320 if(!ctx
->sha_blocks
) ctx
->sha_blocksMSB
++;
323 void sha512_write(sha512_context
*ctx
, const unsigned char *datap
, int length
)
326 if(!ctx
->sha_bufCnt
) {
327 while(length
>= sizeof(ctx
->sha_out
)) {
328 sha512_transform(ctx
, datap
);
329 datap
+= sizeof(ctx
->sha_out
);
330 length
-= sizeof(ctx
->sha_out
);
334 ctx
->sha_out
[ctx
->sha_bufCnt
] = *datap
++;
336 if(++ctx
->sha_bufCnt
== sizeof(ctx
->sha_out
)) {
337 sha512_transform(ctx
, &ctx
->sha_out
[0]);
343 void sha512_final(sha512_context
*ctx
)
346 u_int64_t bitLength
, bitLengthMSB
;
348 unsigned char padByte
, *datap
;
350 bitLength
= (ctx
->sha_blocks
<< 10) | (ctx
->sha_bufCnt
<< 3);
351 bitLengthMSB
= (ctx
->sha_blocksMSB
<< 10) | (ctx
->sha_blocks
>> 54);
353 sha512_write(ctx
, &padByte
, 1);
355 /* pad extra space with zeroes */
357 while(ctx
->sha_bufCnt
!= 112) {
358 sha512_write(ctx
, &padByte
, 1);
361 /* write bit length, big endian byte order */
362 ctx
->sha_out
[112] = bitLengthMSB
>> 56;
363 ctx
->sha_out
[113] = bitLengthMSB
>> 48;
364 ctx
->sha_out
[114] = bitLengthMSB
>> 40;
365 ctx
->sha_out
[115] = bitLengthMSB
>> 32;
366 ctx
->sha_out
[116] = bitLengthMSB
>> 24;
367 ctx
->sha_out
[117] = bitLengthMSB
>> 16;
368 ctx
->sha_out
[118] = bitLengthMSB
>> 8;
369 ctx
->sha_out
[119] = bitLengthMSB
;
370 ctx
->sha_out
[120] = bitLength
>> 56;
371 ctx
->sha_out
[121] = bitLength
>> 48;
372 ctx
->sha_out
[122] = bitLength
>> 40;
373 ctx
->sha_out
[123] = bitLength
>> 32;
374 ctx
->sha_out
[124] = bitLength
>> 24;
375 ctx
->sha_out
[125] = bitLength
>> 16;
376 ctx
->sha_out
[126] = bitLength
>> 8;
377 ctx
->sha_out
[127] = bitLength
;
378 sha512_transform(ctx
, &ctx
->sha_out
[0]);
380 /* return results in ctx->sha_out[0...63] */
381 datap
= &ctx
->sha_out
[0];
396 /* clear sensitive information */
397 memset(&ctx
->sha_out
[64], 0, sizeof(sha512_context
) - 64);
400 void sha512_hash_buffer(unsigned char *ib
, int ile
, unsigned char *ob
, int ole
)
406 if(ole
> 64) ole
= 64;
408 sha512_write(&ctx
, ib
, ile
);
410 memcpy(ob
, &ctx
.sha_out
[0], ole
);
411 memset(&ctx
, 0, sizeof(ctx
));
415 #if defined(SHA384_NEEDED)
416 void sha384_init(sha512_context
*ctx
)
418 memcpy(&ctx
->sha_H
[0], &sha384_hashInit
[0], sizeof(ctx
->sha_H
));
420 ctx
->sha_blocksMSB
= 0;
424 void sha384_hash_buffer(unsigned char *ib
, int ile
, unsigned char *ob
, int ole
)
430 if(ole
> 48) ole
= 48;
432 sha512_write(&ctx
, ib
, ile
);
434 memcpy(ob
, &ctx
.sha_out
[0], ole
);
435 memset(&ctx
, 0, sizeof(ctx
));