--- /dev/null
+/*
+** Copyright 2008 Double Precision, Inc.
+** See COPYING for distribution information.
+*/
+
+#define SHA1_INTERNAL
+#include "sha1.h"
+
+#include <string.h>
+#include <stdlib.h>
+
+static const char rcsid[]="$Id: sha512.c,v 1.2 2008/12/25 15:02:12 mrsam Exp $";
+
+#define ROTR(x,n) ((SHA512_WORD)(((SHA512_WORD)(x) >> (n))|((x) << (64-(n)))))
+
+#define ROTL(x,n) ((SHA512_WORD)(((SHA512_WORD)(x) << (n))|((x) >> (64-(n)))))
+
+
+#define CH(x,y,z) ((SHA512_WORD)(((x) & (y)) ^ ((~(x))&(z))))
+#define MAJ(x,y,z) ((SHA512_WORD)(((x)&(y))^((x)&(z))^((y)&(z))))
+
+#define SUM0(x) ((SHA512_WORD)(ROTR((x),28)^ROTR((x),34)^ROTR((x),39)))
+#define SUM1(x) ((SHA512_WORD)(ROTR((x),14)^ROTR((x),18)^ROTR((x),41)))
+
+#define TH0(x) ((SHA512_WORD)(ROTR((x),1)^ROTR((x),8)^((SHA512_WORD)(x)>>7)))
+#define TH1(x) ((SHA512_WORD)(ROTR((x),19)^ROTR((x),61)^((SHA512_WORD)(x)>>6)))
+
+static const SHA512_WORD K[80]={
+ 0x428a2f98d728ae22ULL, 0x7137449123ef65cdULL, 0xb5c0fbcfec4d3b2fULL, 0xe9b5dba58189dbbcULL,
+ 0x3956c25bf348b538ULL, 0x59f111f1b605d019ULL, 0x923f82a4af194f9bULL, 0xab1c5ed5da6d8118ULL,
+ 0xd807aa98a3030242ULL, 0x12835b0145706fbeULL, 0x243185be4ee4b28cULL, 0x550c7dc3d5ffb4e2ULL,
+ 0x72be5d74f27b896fULL, 0x80deb1fe3b1696b1ULL, 0x9bdc06a725c71235ULL, 0xc19bf174cf692694ULL,
+ 0xe49b69c19ef14ad2ULL, 0xefbe4786384f25e3ULL, 0x0fc19dc68b8cd5b5ULL, 0x240ca1cc77ac9c65ULL,
+ 0x2de92c6f592b0275ULL, 0x4a7484aa6ea6e483ULL, 0x5cb0a9dcbd41fbd4ULL, 0x76f988da831153b5ULL,
+ 0x983e5152ee66dfabULL, 0xa831c66d2db43210ULL, 0xb00327c898fb213fULL, 0xbf597fc7beef0ee4ULL,
+ 0xc6e00bf33da88fc2ULL, 0xd5a79147930aa725ULL, 0x06ca6351e003826fULL, 0x142929670a0e6e70ULL,
+ 0x27b70a8546d22ffcULL, 0x2e1b21385c26c926ULL, 0x4d2c6dfc5ac42aedULL, 0x53380d139d95b3dfULL,
+ 0x650a73548baf63deULL, 0x766a0abb3c77b2a8ULL, 0x81c2c92e47edaee6ULL, 0x92722c851482353bULL,
+ 0xa2bfe8a14cf10364ULL, 0xa81a664bbc423001ULL, 0xc24b8b70d0f89791ULL, 0xc76c51a30654be30ULL,
+ 0xd192e819d6ef5218ULL, 0xd69906245565a910ULL, 0xf40e35855771202aULL, 0x106aa07032bbd1b8ULL,
+ 0x19a4c116b8d2d0c8ULL, 0x1e376c085141ab53ULL, 0x2748774cdf8eeb99ULL, 0x34b0bcb5e19b48a8ULL,
+ 0x391c0cb3c5c95a63ULL, 0x4ed8aa4ae3418acbULL, 0x5b9cca4f7763e373ULL, 0x682e6ff3d6b2b8a3ULL,
+ 0x748f82ee5defb2fcULL, 0x78a5636f43172f60ULL, 0x84c87814a1f0ab72ULL, 0x8cc702081a6439ecULL,
+ 0x90befffa23631e28ULL, 0xa4506cebde82bde9ULL, 0xbef9a3f7b2c67915ULL, 0xc67178f2e372532bULL,
+ 0xca273eceea26619cULL, 0xd186b8c721c0c207ULL, 0xeada7dd6cde0eb1eULL, 0xf57d4f7fee6ed178ULL,
+ 0x06f067aa72176fbaULL, 0x0a637dc5a2c898a6ULL, 0x113f9804bef90daeULL, 0x1b710b35131c471bULL,
+ 0x28db77f523047d84ULL, 0x32caab7b40c72493ULL, 0x3c9ebe0a15c9bebcULL, 0x431d67c49c100d4cULL,
+ 0x4cc5d4becb3e42b6ULL, 0x597f299cfc657e2aULL, 0x5fcb6fab3ad6faecULL, 0x6c44198c4a475817ULL};
+
+void sha512_context_init(struct SHA512_CONTEXT *c)
+{
+ if (sizeof(SHA512_WORD) != 8)
+ abort();
+
+ c->H[0] = 0x6a09e667f3bcc908ULL;
+ c->H[1] = 0xbb67ae8584caa73bULL;
+ c->H[2] = 0x3c6ef372fe94f82bULL;
+ c->H[3] = 0xa54ff53a5f1d36f1ULL;
+ c->H[4] = 0x510e527fade682d1ULL;
+ c->H[5] = 0x9b05688c2b3e6c1fULL;
+ c->H[6] = 0x1f83d9abfb41bd6bULL;
+ c->H[7] = 0x5be0cd19137e2179ULL;
+
+ c->blk_ptr=0;
+}
+
+void sha512_context_hash(struct SHA512_CONTEXT *cc,
+ const unsigned char blk[SHA512_BLOCK_SIZE])
+{
+ SHA512_WORD W[80];
+ unsigned i, t;
+ SHA512_WORD a,b,c,d,e,f,g,h;
+
+ for (i=t=0; t<16; t++)
+ {
+ SHA512_WORD x=blk[i]; i++;
+
+ x=(x << 8) | blk[i]; i++;
+ x=(x << 8) | blk[i]; i++;
+ x=(x << 8) | blk[i]; i++;
+ x=(x << 8) | blk[i]; i++;
+ x=(x << 8) | blk[i]; i++;
+ x=(x << 8) | blk[i]; i++;
+ W[t]=(x << 8) | blk[i]; i++;
+ }
+
+ for (t=16; t<80; t++)
+ W[t]= TH1(W[t-2]) + W[t-7] + TH0(W[t-15]) + W[t-16];
+
+ a=cc->H[0];
+ b=cc->H[1];
+ c=cc->H[2];
+ d=cc->H[3];
+ e=cc->H[4];
+ f=cc->H[5];
+ g=cc->H[6];
+ h=cc->H[7];
+
+ for (t=0; t<80; t++)
+ {
+ SHA512_WORD T1=h + SUM1(e) + CH(e,f,g) + K[t] + W[t];
+ SHA512_WORD T2=SUM0(a)+MAJ(a,b,c);
+ h=g;
+ g=f;
+ f=e;
+ e=d+T1;
+ d=c;
+ c=b;
+ b=a;
+ a=T1+T2;
+ }
+
+ cc->H[0] += a;
+ cc->H[1] += b;
+ cc->H[2] += c;
+ cc->H[3] += d;
+ cc->H[4] += e;
+ cc->H[5] += f;
+ cc->H[6] += g;
+ cc->H[7] += h;
+}
+
+void sha512_context_hashstream(struct SHA512_CONTEXT *c, const void *p, unsigned l)
+{
+ const unsigned char *cp=(const unsigned char *)p;
+ unsigned ll;
+
+ while (l)
+ {
+ if (c->blk_ptr == 0 && l >= SHA512_BLOCK_SIZE)
+ {
+ sha512_context_hash(c, cp);
+ cp += SHA512_BLOCK_SIZE;
+ l -= SHA512_BLOCK_SIZE;
+ continue;
+ }
+
+ ll=l;
+ if (ll > SHA512_BLOCK_SIZE - c->blk_ptr)
+ ll=SHA512_BLOCK_SIZE - c->blk_ptr;
+ memcpy(c->blk + c->blk_ptr, cp, ll);
+ c->blk_ptr += ll;
+ cp += ll;
+ l -= ll;
+ if (c->blk_ptr >= SHA512_BLOCK_SIZE)
+ {
+ sha512_context_hash(c, c->blk);
+ c->blk_ptr=0;
+ }
+ }
+}
+
+void sha512_context_endstream(struct SHA512_CONTEXT *c, SHA512_WORD l)
+{
+ unsigned char buf[16];
+ size_t i;
+ static const unsigned char zero[SHA512_BLOCK_SIZE-8];
+
+ buf[0]=0x80;
+ sha512_context_hashstream(c, &buf, 1);
+ while (c->blk_ptr != SHA512_BLOCK_SIZE-16)
+ {
+ if (c->blk_ptr > SHA512_BLOCK_SIZE-16)
+ {
+ sha512_context_hashstream(c, zero,
+ SHA512_BLOCK_SIZE - c->blk_ptr);
+ continue;
+ }
+ sha512_context_hashstream(c, zero,
+ SHA512_BLOCK_SIZE-16-c->blk_ptr);
+ }
+
+ l *= 8;
+
+ for (i=0; i<16; i++)
+ {
+ buf[15-i]=l;
+ l >>= 8;
+ }
+
+ sha512_context_hashstream(c, buf, sizeof(buf));
+}
+
+void sha512_context_digest(struct SHA512_CONTEXT *c, SHA512_DIGEST d)
+{
+ unsigned char *dp=d + SHA512_DIGEST_SIZE;
+ unsigned i;
+
+ for ( i=8; i; )
+ {
+ SHA512_WORD w=c->H[--i];
+
+ *--dp=w; w >>= 8;
+ *--dp=w; w >>= 8;
+ *--dp=w; w >>= 8;
+ *--dp=w; w >>= 8;
+ *--dp=w; w >>= 8;
+ *--dp=w; w >>= 8;
+ *--dp=w; w >>= 8;
+ *--dp=w;
+ }
+}
+
+void sha512_context_restore(struct SHA512_CONTEXT *c, const SHA512_DIGEST d)
+{
+ const unsigned char *dp=d;
+ unsigned i;
+
+ for (i=0; i<8; i++)
+ {
+ SHA512_WORD w= *dp++;
+
+ w=(w << 8) | *dp++;
+ w=(w << 8) | *dp++;
+ w=(w << 8) | *dp++;
+ w=(w << 8) | *dp++;
+ w=(w << 8) | *dp++;
+ w=(w << 8) | *dp++;
+ w=(w << 8) | *dp++;
+ c->H[i]=w;
+ }
+ c->blk_ptr=0;
+}
+
+void sha512_digest(const void *msg, unsigned len, SHA512_DIGEST d)
+{
+ struct SHA512_CONTEXT c;
+
+ sha512_context_init( &c );
+ sha512_context_hashstream(&c, msg, len);
+ sha512_context_endstream(&c, len);
+ sha512_context_digest( &c, d );
+}
HCoop / hcoop / debian / courier-authlib.git / blobdiff