2 ** Copyright 2008 Double Precision, Inc.
3 ** See COPYING for distribution information.
12 static const char rcsid
[]="$Id: sha512.c,v 1.2 2008/12/25 15:02:12 mrsam Exp $";
14 #define ROTR(x,n) ((SHA512_WORD)(((SHA512_WORD)(x) >> (n))|((x) << (64-(n)))))
16 #define ROTL(x,n) ((SHA512_WORD)(((SHA512_WORD)(x) << (n))|((x) >> (64-(n)))))
19 #define CH(x,y,z) ((SHA512_WORD)(((x) & (y)) ^ ((~(x))&(z))))
20 #define MAJ(x,y,z) ((SHA512_WORD)(((x)&(y))^((x)&(z))^((y)&(z))))
22 #define SUM0(x) ((SHA512_WORD)(ROTR((x),28)^ROTR((x),34)^ROTR((x),39)))
23 #define SUM1(x) ((SHA512_WORD)(ROTR((x),14)^ROTR((x),18)^ROTR((x),41)))
25 #define TH0(x) ((SHA512_WORD)(ROTR((x),1)^ROTR((x),8)^((SHA512_WORD)(x)>>7)))
26 #define TH1(x) ((SHA512_WORD)(ROTR((x),19)^ROTR((x),61)^((SHA512_WORD)(x)>>6)))
28 static const SHA512_WORD K
[80]={
29 0x428a2f98d728ae22ULL
, 0x7137449123ef65cdULL
, 0xb5c0fbcfec4d3b2fULL
, 0xe9b5dba58189dbbcULL
,
30 0x3956c25bf348b538ULL
, 0x59f111f1b605d019ULL
, 0x923f82a4af194f9bULL
, 0xab1c5ed5da6d8118ULL
,
31 0xd807aa98a3030242ULL
, 0x12835b0145706fbeULL
, 0x243185be4ee4b28cULL
, 0x550c7dc3d5ffb4e2ULL
,
32 0x72be5d74f27b896fULL
, 0x80deb1fe3b1696b1ULL
, 0x9bdc06a725c71235ULL
, 0xc19bf174cf692694ULL
,
33 0xe49b69c19ef14ad2ULL
, 0xefbe4786384f25e3ULL
, 0x0fc19dc68b8cd5b5ULL
, 0x240ca1cc77ac9c65ULL
,
34 0x2de92c6f592b0275ULL
, 0x4a7484aa6ea6e483ULL
, 0x5cb0a9dcbd41fbd4ULL
, 0x76f988da831153b5ULL
,
35 0x983e5152ee66dfabULL
, 0xa831c66d2db43210ULL
, 0xb00327c898fb213fULL
, 0xbf597fc7beef0ee4ULL
,
36 0xc6e00bf33da88fc2ULL
, 0xd5a79147930aa725ULL
, 0x06ca6351e003826fULL
, 0x142929670a0e6e70ULL
,
37 0x27b70a8546d22ffcULL
, 0x2e1b21385c26c926ULL
, 0x4d2c6dfc5ac42aedULL
, 0x53380d139d95b3dfULL
,
38 0x650a73548baf63deULL
, 0x766a0abb3c77b2a8ULL
, 0x81c2c92e47edaee6ULL
, 0x92722c851482353bULL
,
39 0xa2bfe8a14cf10364ULL
, 0xa81a664bbc423001ULL
, 0xc24b8b70d0f89791ULL
, 0xc76c51a30654be30ULL
,
40 0xd192e819d6ef5218ULL
, 0xd69906245565a910ULL
, 0xf40e35855771202aULL
, 0x106aa07032bbd1b8ULL
,
41 0x19a4c116b8d2d0c8ULL
, 0x1e376c085141ab53ULL
, 0x2748774cdf8eeb99ULL
, 0x34b0bcb5e19b48a8ULL
,
42 0x391c0cb3c5c95a63ULL
, 0x4ed8aa4ae3418acbULL
, 0x5b9cca4f7763e373ULL
, 0x682e6ff3d6b2b8a3ULL
,
43 0x748f82ee5defb2fcULL
, 0x78a5636f43172f60ULL
, 0x84c87814a1f0ab72ULL
, 0x8cc702081a6439ecULL
,
44 0x90befffa23631e28ULL
, 0xa4506cebde82bde9ULL
, 0xbef9a3f7b2c67915ULL
, 0xc67178f2e372532bULL
,
45 0xca273eceea26619cULL
, 0xd186b8c721c0c207ULL
, 0xeada7dd6cde0eb1eULL
, 0xf57d4f7fee6ed178ULL
,
46 0x06f067aa72176fbaULL
, 0x0a637dc5a2c898a6ULL
, 0x113f9804bef90daeULL
, 0x1b710b35131c471bULL
,
47 0x28db77f523047d84ULL
, 0x32caab7b40c72493ULL
, 0x3c9ebe0a15c9bebcULL
, 0x431d67c49c100d4cULL
,
48 0x4cc5d4becb3e42b6ULL
, 0x597f299cfc657e2aULL
, 0x5fcb6fab3ad6faecULL
, 0x6c44198c4a475817ULL
};
50 void sha512_context_init(struct SHA512_CONTEXT
*c
)
52 if (sizeof(SHA512_WORD
) != 8)
55 c
->H
[0] = 0x6a09e667f3bcc908ULL
;
56 c
->H
[1] = 0xbb67ae8584caa73bULL
;
57 c
->H
[2] = 0x3c6ef372fe94f82bULL
;
58 c
->H
[3] = 0xa54ff53a5f1d36f1ULL
;
59 c
->H
[4] = 0x510e527fade682d1ULL
;
60 c
->H
[5] = 0x9b05688c2b3e6c1fULL
;
61 c
->H
[6] = 0x1f83d9abfb41bd6bULL
;
62 c
->H
[7] = 0x5be0cd19137e2179ULL
;
67 void sha512_context_hash(struct SHA512_CONTEXT
*cc
,
68 const unsigned char blk
[SHA512_BLOCK_SIZE
])
72 SHA512_WORD a
,b
,c
,d
,e
,f
,g
,h
;
74 for (i
=t
=0; t
<16; t
++)
76 SHA512_WORD x
=blk
[i
]; i
++;
78 x
=(x
<< 8) | blk
[i
]; i
++;
79 x
=(x
<< 8) | blk
[i
]; i
++;
80 x
=(x
<< 8) | blk
[i
]; i
++;
81 x
=(x
<< 8) | blk
[i
]; i
++;
82 x
=(x
<< 8) | blk
[i
]; i
++;
83 x
=(x
<< 8) | blk
[i
]; i
++;
84 W
[t
]=(x
<< 8) | blk
[i
]; i
++;
88 W
[t
]= TH1(W
[t
-2]) + W
[t
-7] + TH0(W
[t
-15]) + W
[t
-16];
101 SHA512_WORD T1
=h
+ SUM1(e
) + CH(e
,f
,g
) + K
[t
] + W
[t
];
102 SHA512_WORD T2
=SUM0(a
)+MAJ(a
,b
,c
);
123 void sha512_context_hashstream(struct SHA512_CONTEXT
*c
, const void *p
, unsigned l
)
125 const unsigned char *cp
=(const unsigned char *)p
;
130 if (c
->blk_ptr
== 0 && l
>= SHA512_BLOCK_SIZE
)
132 sha512_context_hash(c
, cp
);
133 cp
+= SHA512_BLOCK_SIZE
;
134 l
-= SHA512_BLOCK_SIZE
;
139 if (ll
> SHA512_BLOCK_SIZE
- c
->blk_ptr
)
140 ll
=SHA512_BLOCK_SIZE
- c
->blk_ptr
;
141 memcpy(c
->blk
+ c
->blk_ptr
, cp
, ll
);
145 if (c
->blk_ptr
>= SHA512_BLOCK_SIZE
)
147 sha512_context_hash(c
, c
->blk
);
153 void sha512_context_endstream(struct SHA512_CONTEXT
*c
, SHA512_WORD l
)
155 unsigned char buf
[16];
157 static const unsigned char zero
[SHA512_BLOCK_SIZE
-8];
160 sha512_context_hashstream(c
, &buf
, 1);
161 while (c
->blk_ptr
!= SHA512_BLOCK_SIZE
-16)
163 if (c
->blk_ptr
> SHA512_BLOCK_SIZE
-16)
165 sha512_context_hashstream(c
, zero
,
166 SHA512_BLOCK_SIZE
- c
->blk_ptr
);
169 sha512_context_hashstream(c
, zero
,
170 SHA512_BLOCK_SIZE
-16-c
->blk_ptr
);
181 sha512_context_hashstream(c
, buf
, sizeof(buf
));
184 void sha512_context_digest(struct SHA512_CONTEXT
*c
, SHA512_DIGEST d
)
186 unsigned char *dp
=d
+ SHA512_DIGEST_SIZE
;
191 SHA512_WORD w
=c
->H
[--i
];
204 void sha512_context_restore(struct SHA512_CONTEXT
*c
, const SHA512_DIGEST d
)
206 const unsigned char *dp
=d
;
211 SHA512_WORD w
= *dp
++;
225 void sha512_digest(const void *msg
, unsigned len
, SHA512_DIGEST d
)
227 struct SHA512_CONTEXT c
;
229 sha512_context_init( &c
);
230 sha512_context_hashstream(&c
, msg
, len
);
231 sha512_context_endstream(&c
, len
);
232 sha512_context_digest( &c
, d
);