FreeRTOS-Plus/Source/CyaSSL/ctaocrypt/src/sha512.c - nest-detect/1.0.2/freertos - Git at Google

 /* sha512.c
  *
  * Copyright (C) 2006-2012 Sawtooth Consulting Ltd.
  *
  * This file is part of CyaSSL.
  *
  * CyaSSL is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
  *
  * CyaSSL is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  */

 #ifdef HAVE_CONFIG_H
     #include <config.h>
 #endif


 #ifdef CYASSL_SHA512

 #include <cyassl/ctaocrypt/sha512.h>
 #ifdef NO_INLINE
     #include <cyassl/ctaocrypt/misc.h>
 #else
     #include <ctaocrypt/src/misc.c>
 #endif


 #ifndef min

     static INLINE word32 min(word32 a, word32 b)
     {
         return a > b ? b : a;
     }

 #endif /* min */


 void InitSha512(Sha512* sha512)
 {
     sha512->digest[0] = W64LIT(0x6a09e667f3bcc908);
     sha512->digest[1] = W64LIT(0xbb67ae8584caa73b);
     sha512->digest[2] = W64LIT(0x3c6ef372fe94f82b);
     sha512->digest[3] = W64LIT(0xa54ff53a5f1d36f1);
     sha512->digest[4] = W64LIT(0x510e527fade682d1);
     sha512->digest[5] = W64LIT(0x9b05688c2b3e6c1f);
     sha512->digest[6] = W64LIT(0x1f83d9abfb41bd6b);
     sha512->digest[7] = W64LIT(0x5be0cd19137e2179);

     sha512->buffLen = 0;
     sha512->loLen   = 0;
     sha512->hiLen   = 0;
 }


 static const word64 K512[80] = {
 	W64LIT(0x428a2f98d728ae22), W64LIT(0x7137449123ef65cd),
 	W64LIT(0xb5c0fbcfec4d3b2f), W64LIT(0xe9b5dba58189dbbc),
 	W64LIT(0x3956c25bf348b538), W64LIT(0x59f111f1b605d019),
 	W64LIT(0x923f82a4af194f9b), W64LIT(0xab1c5ed5da6d8118),
 	W64LIT(0xd807aa98a3030242), W64LIT(0x12835b0145706fbe),
 	W64LIT(0x243185be4ee4b28c), W64LIT(0x550c7dc3d5ffb4e2),
 	W64LIT(0x72be5d74f27b896f), W64LIT(0x80deb1fe3b1696b1),
 	W64LIT(0x9bdc06a725c71235), W64LIT(0xc19bf174cf692694),
 	W64LIT(0xe49b69c19ef14ad2), W64LIT(0xefbe4786384f25e3),
 	W64LIT(0x0fc19dc68b8cd5b5), W64LIT(0x240ca1cc77ac9c65),
 	W64LIT(0x2de92c6f592b0275), W64LIT(0x4a7484aa6ea6e483),
 	W64LIT(0x5cb0a9dcbd41fbd4), W64LIT(0x76f988da831153b5),
 	W64LIT(0x983e5152ee66dfab), W64LIT(0xa831c66d2db43210),
 	W64LIT(0xb00327c898fb213f), W64LIT(0xbf597fc7beef0ee4),
 	W64LIT(0xc6e00bf33da88fc2), W64LIT(0xd5a79147930aa725),
 	W64LIT(0x06ca6351e003826f), W64LIT(0x142929670a0e6e70),
 	W64LIT(0x27b70a8546d22ffc), W64LIT(0x2e1b21385c26c926),
 	W64LIT(0x4d2c6dfc5ac42aed), W64LIT(0x53380d139d95b3df),
 	W64LIT(0x650a73548baf63de), W64LIT(0x766a0abb3c77b2a8),
 	W64LIT(0x81c2c92e47edaee6), W64LIT(0x92722c851482353b),
 	W64LIT(0xa2bfe8a14cf10364), W64LIT(0xa81a664bbc423001),
 	W64LIT(0xc24b8b70d0f89791), W64LIT(0xc76c51a30654be30),
 	W64LIT(0xd192e819d6ef5218), W64LIT(0xd69906245565a910),
 	W64LIT(0xf40e35855771202a), W64LIT(0x106aa07032bbd1b8),
 	W64LIT(0x19a4c116b8d2d0c8), W64LIT(0x1e376c085141ab53),
 	W64LIT(0x2748774cdf8eeb99), W64LIT(0x34b0bcb5e19b48a8),
 	W64LIT(0x391c0cb3c5c95a63), W64LIT(0x4ed8aa4ae3418acb),
 	W64LIT(0x5b9cca4f7763e373), W64LIT(0x682e6ff3d6b2b8a3),
 	W64LIT(0x748f82ee5defb2fc), W64LIT(0x78a5636f43172f60),
 	W64LIT(0x84c87814a1f0ab72), W64LIT(0x8cc702081a6439ec),
 	W64LIT(0x90befffa23631e28), W64LIT(0xa4506cebde82bde9),
 	W64LIT(0xbef9a3f7b2c67915), W64LIT(0xc67178f2e372532b),
 	W64LIT(0xca273eceea26619c), W64LIT(0xd186b8c721c0c207),
 	W64LIT(0xeada7dd6cde0eb1e), W64LIT(0xf57d4f7fee6ed178),
 	W64LIT(0x06f067aa72176fba), W64LIT(0x0a637dc5a2c898a6),
 	W64LIT(0x113f9804bef90dae), W64LIT(0x1b710b35131c471b),
 	W64LIT(0x28db77f523047d84), W64LIT(0x32caab7b40c72493),
 	W64LIT(0x3c9ebe0a15c9bebc), W64LIT(0x431d67c49c100d4c),
 	W64LIT(0x4cc5d4becb3e42b6), W64LIT(0x597f299cfc657e2a),
 	W64LIT(0x5fcb6fab3ad6faec), W64LIT(0x6c44198c4a475817)
 };


 #define blk0(i) (W[i] = sha512->buffer[i])
 #define blk2(i) (W[i&15]+=s1(W[(i-2)&15])+W[(i-7)&15]+s0(W[(i-15)&15]))

 #define Ch(x,y,z) (z^(x&(y^z)))
 #define Maj(x,y,z) ((x&y)|(z&(x|y)))

 #define a(i) T[(0-i)&7]
 #define b(i) T[(1-i)&7]
 #define c(i) T[(2-i)&7]
 #define d(i) T[(3-i)&7]
 #define e(i) T[(4-i)&7]
 #define f(i) T[(5-i)&7]
 #define g(i) T[(6-i)&7]
 #define h(i) T[(7-i)&7]

 #define S0(x) (rotrFixed64(x,28)^rotrFixed64(x,34)^rotrFixed64(x,39))
 #define S1(x) (rotrFixed64(x,14)^rotrFixed64(x,18)^rotrFixed64(x,41))
 #define s0(x) (rotrFixed64(x,1)^rotrFixed64(x,8)^(x>>7))
 #define s1(x) (rotrFixed64(x,19)^rotrFixed64(x,61)^(x>>6))

 #define R(i) h(i)+=S1(e(i))+Ch(e(i),f(i),g(i))+K[i+j]+(j?blk2(i):blk0(i));\
 	d(i)+=h(i);h(i)+=S0(a(i))+Maj(a(i),b(i),c(i))

 #define blk384(i) (W[i] = sha384->buffer[i])

 #define R2(i) h(i)+=S1(e(i))+Ch(e(i),f(i),g(i))+K[i+j]+(j?blk2(i):blk384(i));\
 	d(i)+=h(i);h(i)+=S0(a(i))+Maj(a(i),b(i),c(i))


 static void Transform(Sha512* sha512)
 {
     const word64* K = K512;

     word32 j;
     word64 W[16];
     word64 T[8];

     /* Copy digest to working vars */
     XMEMCPY(T, sha512->digest, sizeof(T));

     /* 64 operations, partially loop unrolled */
     for (j = 0; j < 80; j += 16) {
         R( 0); R( 1); R( 2); R( 3);
         R( 4); R( 5); R( 6); R( 7);
         R( 8); R( 9); R(10); R(11);
         R(12); R(13); R(14); R(15);
     }

     /* Add the working vars back into digest */

     sha512->digest[0] += a(0);
     sha512->digest[1] += b(0);
     sha512->digest[2] += c(0);
     sha512->digest[3] += d(0);
     sha512->digest[4] += e(0);
     sha512->digest[5] += f(0);
     sha512->digest[6] += g(0);
     sha512->digest[7] += h(0);

     /* Wipe variables */
     XMEMSET(W, 0, sizeof(W));
     XMEMSET(T, 0, sizeof(T));
 }


 static INLINE void AddLength(Sha512* sha512, word32 len)
 {
     word32 tmp = sha512->loLen;
     if ( (sha512->loLen += len) < tmp)
         sha512->hiLen++;                       /* carry low to high */
 }


 void Sha512Update(Sha512* sha512, const byte* data, word32 len)
 {
     /* do block size increments */
     byte* local = (byte*)sha512->buffer;

     while (len) {
         word32 add = min(len, SHA512_BLOCK_SIZE - sha512->buffLen);
         XMEMCPY(&local[sha512->buffLen], data, add);

         sha512->buffLen += add;
         data         += add;
         len          -= add;

         if (sha512->buffLen == SHA512_BLOCK_SIZE) {
             #ifdef LITTLE_ENDIAN_ORDER
                 ByteReverseWords64(sha512->buffer, sha512->buffer,
                                    SHA512_BLOCK_SIZE);
             #endif
             Transform(sha512);
             AddLength(sha512, SHA512_BLOCK_SIZE);
             sha512->buffLen = 0;
         }
     }
 }


 void Sha512Final(Sha512* sha512, byte* hash)
 {
     byte* local = (byte*)sha512->buffer;

     AddLength(sha512, sha512->buffLen);               /* before adding pads */

     local[sha512->buffLen++] = 0x80;  /* add 1 */

     /* pad with zeros */
     if (sha512->buffLen > SHA512_PAD_SIZE) {
         XMEMSET(&local[sha512->buffLen], 0, SHA512_BLOCK_SIZE -sha512->buffLen);
         sha512->buffLen += SHA512_BLOCK_SIZE - sha512->buffLen;

         #ifdef LITTLE_ENDIAN_ORDER
             ByteReverseWords64(sha512->buffer,sha512->buffer,SHA512_BLOCK_SIZE);
         #endif
         Transform(sha512);
         sha512->buffLen = 0;
     }
     XMEMSET(&local[sha512->buffLen], 0, SHA512_PAD_SIZE - sha512->buffLen);

     /* put lengths in bits */
     sha512->hiLen = (sha512->loLen >> (8*sizeof(sha512->loLen) - 3)) +
                  (sha512->hiLen << 3);
     sha512->loLen = sha512->loLen << 3;

     /* store lengths */
     #ifdef LITTLE_ENDIAN_ORDER
         ByteReverseWords64(sha512->buffer, sha512->buffer, SHA512_PAD_SIZE);
     #endif
     /* ! length ordering dependent on digest endian type ! */
     sha512->buffer[SHA512_BLOCK_SIZE / sizeof(word64) - 2] = sha512->hiLen;
     sha512->buffer[SHA512_BLOCK_SIZE / sizeof(word64) - 1] = sha512->loLen;

     Transform(sha512);
     #ifdef LITTLE_ENDIAN_ORDER
         ByteReverseWords64(sha512->digest, sha512->digest, SHA512_DIGEST_SIZE);
     #endif
     XMEMCPY(hash, sha512->digest, SHA512_DIGEST_SIZE);

     InitSha512(sha512);  /* reset state */
 }


 #ifdef CYASSL_SHA384

 void InitSha384(Sha384* sha384)
 {
     sha384->digest[0] = W64LIT(0xcbbb9d5dc1059ed8);
     sha384->digest[1] = W64LIT(0x629a292a367cd507);
     sha384->digest[2] = W64LIT(0x9159015a3070dd17);
     sha384->digest[3] = W64LIT(0x152fecd8f70e5939);
     sha384->digest[4] = W64LIT(0x67332667ffc00b31);
     sha384->digest[5] = W64LIT(0x8eb44a8768581511);
     sha384->digest[6] = W64LIT(0xdb0c2e0d64f98fa7);
     sha384->digest[7] = W64LIT(0x47b5481dbefa4fa4);

     sha384->buffLen = 0;
     sha384->loLen   = 0;
     sha384->hiLen   = 0;
 }


 static void Transform384(Sha384* sha384)
 {
     const word64* K = K512;

     word32 j;
     word64 W[16];
     word64 T[8];

     /* Copy digest to working vars */
     XMEMCPY(T, sha384->digest, sizeof(T));

     /* 64 operations, partially loop unrolled */
     for (j = 0; j < 80; j += 16) {
         R2( 0); R2( 1); R2( 2); R2( 3);
         R2( 4); R2( 5); R2( 6); R2( 7);
         R2( 8); R2( 9); R2(10); R2(11);
         R2(12); R2(13); R2(14); R2(15);
     }

     /* Add the working vars back into digest */

     sha384->digest[0] += a(0);
     sha384->digest[1] += b(0);
     sha384->digest[2] += c(0);
     sha384->digest[3] += d(0);
     sha384->digest[4] += e(0);
     sha384->digest[5] += f(0);
     sha384->digest[6] += g(0);
     sha384->digest[7] += h(0);

     /* Wipe variables */
     XMEMSET(W, 0, sizeof(W));
     XMEMSET(T, 0, sizeof(T));
 }


 static INLINE void AddLength384(Sha384* sha384, word32 len)
 {
     word32 tmp = sha384->loLen;
     if ( (sha384->loLen += len) < tmp)
         sha384->hiLen++;                       /* carry low to high */
 }


 void Sha384Update(Sha384* sha384, const byte* data, word32 len)
 {
     /* do block size increments */
     byte* local = (byte*)sha384->buffer;

     while (len) {
         word32 add = min(len, SHA384_BLOCK_SIZE - sha384->buffLen);
         XMEMCPY(&local[sha384->buffLen], data, add);

         sha384->buffLen += add;
         data         += add;
         len          -= add;

         if (sha384->buffLen == SHA384_BLOCK_SIZE) {
             #ifdef LITTLE_ENDIAN_ORDER
                 ByteReverseWords64(sha384->buffer, sha384->buffer,
                                    SHA384_BLOCK_SIZE);
             #endif
             Transform384(sha384);
             AddLength384(sha384, SHA384_BLOCK_SIZE);
             sha384->buffLen = 0;
         }
     }
 }


 void Sha384Final(Sha384* sha384, byte* hash)
 {
     byte* local = (byte*)sha384->buffer;

     AddLength384(sha384, sha384->buffLen);              /* before adding pads */

     local[sha384->buffLen++] = 0x80;  /* add 1 */

     /* pad with zeros */
     if (sha384->buffLen > SHA384_PAD_SIZE) {
         XMEMSET(&local[sha384->buffLen], 0, SHA384_BLOCK_SIZE -sha384->buffLen);
         sha384->buffLen += SHA384_BLOCK_SIZE - sha384->buffLen;

         #ifdef LITTLE_ENDIAN_ORDER
             ByteReverseWords64(sha384->buffer,sha384->buffer,SHA384_BLOCK_SIZE);
         #endif
         Transform384(sha384);
         sha384->buffLen = 0;
     }
     XMEMSET(&local[sha384->buffLen], 0, SHA384_PAD_SIZE - sha384->buffLen);

     /* put lengths in bits */
     sha384->hiLen = (sha384->loLen >> (8*sizeof(sha384->loLen) - 3)) +
                  (sha384->hiLen << 3);
     sha384->loLen = sha384->loLen << 3;

     /* store lengths */
     #ifdef LITTLE_ENDIAN_ORDER
         ByteReverseWords64(sha384->buffer, sha384->buffer, SHA384_PAD_SIZE);
     #endif
     /* ! length ordering dependent on digest endian type ! */
     sha384->buffer[SHA384_BLOCK_SIZE / sizeof(word64) - 2] = sha384->hiLen;
     sha384->buffer[SHA384_BLOCK_SIZE / sizeof(word64) - 1] = sha384->loLen;

     Transform384(sha384);
     #ifdef LITTLE_ENDIAN_ORDER
         ByteReverseWords64(sha384->digest, sha384->digest, SHA384_DIGEST_SIZE);
     #endif
     XMEMCPY(hash, sha384->digest, SHA384_DIGEST_SIZE);

     InitSha384(sha384);  /* reset state */
 }

 #endif /* CYASSL_SHA384 */

 #endif /* CYASSL_SHA512 */
	/* sha512.c
	*
	* Copyright (C) 2006-2012 Sawtooth Consulting Ltd.
	*
	* This file is part of CyaSSL.
	*
	* CyaSSL is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation; either version 2 of the License, or
	* (at your option) any later version.
	*
	* CyaSSL is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write to the Free Software
	* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
	*/

	#ifdef HAVE_CONFIG_H
	#include <config.h>
	#endif


	#ifdef CYASSL_SHA512

	#include <cyassl/ctaocrypt/sha512.h>
	#ifdef NO_INLINE
	#include <cyassl/ctaocrypt/misc.h>
	#else
	#include <ctaocrypt/src/misc.c>
	#endif


	#ifndef min

	static INLINE word32 min(word32 a, word32 b)
	{
	return a > b ? b : a;
	}

	#endif /* min */


	void InitSha512(Sha512* sha512)
	{
	sha512->digest[0] = W64LIT(0x6a09e667f3bcc908);
	sha512->digest[1] = W64LIT(0xbb67ae8584caa73b);
	sha512->digest[2] = W64LIT(0x3c6ef372fe94f82b);
	sha512->digest[3] = W64LIT(0xa54ff53a5f1d36f1);
	sha512->digest[4] = W64LIT(0x510e527fade682d1);
	sha512->digest[5] = W64LIT(0x9b05688c2b3e6c1f);
	sha512->digest[6] = W64LIT(0x1f83d9abfb41bd6b);
	sha512->digest[7] = W64LIT(0x5be0cd19137e2179);

	sha512->buffLen = 0;
	sha512->loLen = 0;
	sha512->hiLen = 0;
	}


	static const word64 K512[80] = {
	W64LIT(0x428a2f98d728ae22), W64LIT(0x7137449123ef65cd),
	W64LIT(0xb5c0fbcfec4d3b2f), W64LIT(0xe9b5dba58189dbbc),
	W64LIT(0x3956c25bf348b538), W64LIT(0x59f111f1b605d019),
	W64LIT(0x923f82a4af194f9b), W64LIT(0xab1c5ed5da6d8118),
	W64LIT(0xd807aa98a3030242), W64LIT(0x12835b0145706fbe),
	W64LIT(0x243185be4ee4b28c), W64LIT(0x550c7dc3d5ffb4e2),
	W64LIT(0x72be5d74f27b896f), W64LIT(0x80deb1fe3b1696b1),
	W64LIT(0x9bdc06a725c71235), W64LIT(0xc19bf174cf692694),
	W64LIT(0xe49b69c19ef14ad2), W64LIT(0xefbe4786384f25e3),
	W64LIT(0x0fc19dc68b8cd5b5), W64LIT(0x240ca1cc77ac9c65),
	W64LIT(0x2de92c6f592b0275), W64LIT(0x4a7484aa6ea6e483),
	W64LIT(0x5cb0a9dcbd41fbd4), W64LIT(0x76f988da831153b5),
	W64LIT(0x983e5152ee66dfab), W64LIT(0xa831c66d2db43210),
	W64LIT(0xb00327c898fb213f), W64LIT(0xbf597fc7beef0ee4),
	W64LIT(0xc6e00bf33da88fc2), W64LIT(0xd5a79147930aa725),
	W64LIT(0x06ca6351e003826f), W64LIT(0x142929670a0e6e70),
	W64LIT(0x27b70a8546d22ffc), W64LIT(0x2e1b21385c26c926),
	W64LIT(0x4d2c6dfc5ac42aed), W64LIT(0x53380d139d95b3df),
	W64LIT(0x650a73548baf63de), W64LIT(0x766a0abb3c77b2a8),
	W64LIT(0x81c2c92e47edaee6), W64LIT(0x92722c851482353b),
	W64LIT(0xa2bfe8a14cf10364), W64LIT(0xa81a664bbc423001),
	W64LIT(0xc24b8b70d0f89791), W64LIT(0xc76c51a30654be30),
	W64LIT(0xd192e819d6ef5218), W64LIT(0xd69906245565a910),
	W64LIT(0xf40e35855771202a), W64LIT(0x106aa07032bbd1b8),
	W64LIT(0x19a4c116b8d2d0c8), W64LIT(0x1e376c085141ab53),
	W64LIT(0x2748774cdf8eeb99), W64LIT(0x34b0bcb5e19b48a8),
	W64LIT(0x391c0cb3c5c95a63), W64LIT(0x4ed8aa4ae3418acb),
	W64LIT(0x5b9cca4f7763e373), W64LIT(0x682e6ff3d6b2b8a3),
	W64LIT(0x748f82ee5defb2fc), W64LIT(0x78a5636f43172f60),
	W64LIT(0x84c87814a1f0ab72), W64LIT(0x8cc702081a6439ec),
	W64LIT(0x90befffa23631e28), W64LIT(0xa4506cebde82bde9),
	W64LIT(0xbef9a3f7b2c67915), W64LIT(0xc67178f2e372532b),
	W64LIT(0xca273eceea26619c), W64LIT(0xd186b8c721c0c207),
	W64LIT(0xeada7dd6cde0eb1e), W64LIT(0xf57d4f7fee6ed178),
	W64LIT(0x06f067aa72176fba), W64LIT(0x0a637dc5a2c898a6),
	W64LIT(0x113f9804bef90dae), W64LIT(0x1b710b35131c471b),
	W64LIT(0x28db77f523047d84), W64LIT(0x32caab7b40c72493),
	W64LIT(0x3c9ebe0a15c9bebc), W64LIT(0x431d67c49c100d4c),
	W64LIT(0x4cc5d4becb3e42b6), W64LIT(0x597f299cfc657e2a),
	W64LIT(0x5fcb6fab3ad6faec), W64LIT(0x6c44198c4a475817)
	};


	#define blk0(i) (W[i] = sha512->buffer[i])
	#define blk2(i) (W[i&15]+=s1(W[(i-2)&15])+W[(i-7)&15]+s0(W[(i-15)&15]))

	#define Ch(x,y,z) (z^(x&(y^z)))
	#define Maj(x,y,z) ((x&y)\|(z&(x\|y)))

	#define a(i) T[(0-i)&7]
	#define b(i) T[(1-i)&7]
	#define c(i) T[(2-i)&7]
	#define d(i) T[(3-i)&7]
	#define e(i) T[(4-i)&7]
	#define f(i) T[(5-i)&7]
	#define g(i) T[(6-i)&7]
	#define h(i) T[(7-i)&7]

	#define S0(x) (rotrFixed64(x,28)^rotrFixed64(x,34)^rotrFixed64(x,39))
	#define S1(x) (rotrFixed64(x,14)^rotrFixed64(x,18)^rotrFixed64(x,41))
	#define s0(x) (rotrFixed64(x,1)^rotrFixed64(x,8)^(x>>7))
	#define s1(x) (rotrFixed64(x,19)^rotrFixed64(x,61)^(x>>6))

	#define R(i) h(i)+=S1(e(i))+Ch(e(i),f(i),g(i))+K[i+j]+(j?blk2(i):blk0(i));\
	d(i)+=h(i);h(i)+=S0(a(i))+Maj(a(i),b(i),c(i))

	#define blk384(i) (W[i] = sha384->buffer[i])

	#define R2(i) h(i)+=S1(e(i))+Ch(e(i),f(i),g(i))+K[i+j]+(j?blk2(i):blk384(i));\
	d(i)+=h(i);h(i)+=S0(a(i))+Maj(a(i),b(i),c(i))


	static void Transform(Sha512* sha512)
	{
	const word64* K = K512;

	word32 j;
	word64 W[16];
	word64 T[8];

	/* Copy digest to working vars */
	XMEMCPY(T, sha512->digest, sizeof(T));

	/* 64 operations, partially loop unrolled */
	for (j = 0; j < 80; j += 16) {
	R( 0); R( 1); R( 2); R( 3);
	R( 4); R( 5); R( 6); R( 7);
	R( 8); R( 9); R(10); R(11);
	R(12); R(13); R(14); R(15);
	}

	/* Add the working vars back into digest */

	sha512->digest[0] += a(0);
	sha512->digest[1] += b(0);
	sha512->digest[2] += c(0);
	sha512->digest[3] += d(0);
	sha512->digest[4] += e(0);
	sha512->digest[5] += f(0);
	sha512->digest[6] += g(0);
	sha512->digest[7] += h(0);

	/* Wipe variables */
	XMEMSET(W, 0, sizeof(W));
	XMEMSET(T, 0, sizeof(T));
	}


	static INLINE void AddLength(Sha512* sha512, word32 len)
	{
	word32 tmp = sha512->loLen;
	if ( (sha512->loLen += len) < tmp)
	sha512->hiLen++; /* carry low to high */
	}


	void Sha512Update(Sha512* sha512, const byte* data, word32 len)
	{
	/* do block size increments */
	byte* local = (byte*)sha512->buffer;

	while (len) {
	word32 add = min(len, SHA512_BLOCK_SIZE - sha512->buffLen);
	XMEMCPY(&local[sha512->buffLen], data, add);

	sha512->buffLen += add;
	data += add;
	len -= add;

	if (sha512->buffLen == SHA512_BLOCK_SIZE) {
	#ifdef LITTLE_ENDIAN_ORDER
	ByteReverseWords64(sha512->buffer, sha512->buffer,
	SHA512_BLOCK_SIZE);
	#endif
	Transform(sha512);
	AddLength(sha512, SHA512_BLOCK_SIZE);
	sha512->buffLen = 0;
	}
	}
	}


	void Sha512Final(Sha512* sha512, byte* hash)
	{
	byte* local = (byte*)sha512->buffer;

	AddLength(sha512, sha512->buffLen); /* before adding pads */

	local[sha512->buffLen++] = 0x80; /* add 1 */

	/* pad with zeros */
	if (sha512->buffLen > SHA512_PAD_SIZE) {
	XMEMSET(&local[sha512->buffLen], 0, SHA512_BLOCK_SIZE -sha512->buffLen);
	sha512->buffLen += SHA512_BLOCK_SIZE - sha512->buffLen;

	#ifdef LITTLE_ENDIAN_ORDER
	ByteReverseWords64(sha512->buffer,sha512->buffer,SHA512_BLOCK_SIZE);
	#endif
	Transform(sha512);
	sha512->buffLen = 0;
	}
	XMEMSET(&local[sha512->buffLen], 0, SHA512_PAD_SIZE - sha512->buffLen);

	/* put lengths in bits */
	sha512->hiLen = (sha512->loLen >> (8*sizeof(sha512->loLen) - 3)) +
	(sha512->hiLen << 3);
	sha512->loLen = sha512->loLen << 3;

	/* store lengths */
	#ifdef LITTLE_ENDIAN_ORDER
	ByteReverseWords64(sha512->buffer, sha512->buffer, SHA512_PAD_SIZE);
	#endif
	/* ! length ordering dependent on digest endian type ! */
	sha512->buffer[SHA512_BLOCK_SIZE / sizeof(word64) - 2] = sha512->hiLen;
	sha512->buffer[SHA512_BLOCK_SIZE / sizeof(word64) - 1] = sha512->loLen;

	Transform(sha512);
	#ifdef LITTLE_ENDIAN_ORDER
	ByteReverseWords64(sha512->digest, sha512->digest, SHA512_DIGEST_SIZE);
	#endif
	XMEMCPY(hash, sha512->digest, SHA512_DIGEST_SIZE);

	InitSha512(sha512); /* reset state */
	}



	#ifdef CYASSL_SHA384

	void InitSha384(Sha384* sha384)
	{
	sha384->digest[0] = W64LIT(0xcbbb9d5dc1059ed8);
	sha384->digest[1] = W64LIT(0x629a292a367cd507);
	sha384->digest[2] = W64LIT(0x9159015a3070dd17);
	sha384->digest[3] = W64LIT(0x152fecd8f70e5939);
	sha384->digest[4] = W64LIT(0x67332667ffc00b31);
	sha384->digest[5] = W64LIT(0x8eb44a8768581511);
	sha384->digest[6] = W64LIT(0xdb0c2e0d64f98fa7);
	sha384->digest[7] = W64LIT(0x47b5481dbefa4fa4);

	sha384->buffLen = 0;
	sha384->loLen = 0;
	sha384->hiLen = 0;
	}


	static void Transform384(Sha384* sha384)
	{
	const word64* K = K512;

	word32 j;
	word64 W[16];
	word64 T[8];

	/* Copy digest to working vars */
	XMEMCPY(T, sha384->digest, sizeof(T));

	/* 64 operations, partially loop unrolled */
	for (j = 0; j < 80; j += 16) {
	R2( 0); R2( 1); R2( 2); R2( 3);
	R2( 4); R2( 5); R2( 6); R2( 7);
	R2( 8); R2( 9); R2(10); R2(11);
	R2(12); R2(13); R2(14); R2(15);
	}

	/* Add the working vars back into digest */

	sha384->digest[0] += a(0);
	sha384->digest[1] += b(0);
	sha384->digest[2] += c(0);
	sha384->digest[3] += d(0);
	sha384->digest[4] += e(0);
	sha384->digest[5] += f(0);
	sha384->digest[6] += g(0);
	sha384->digest[7] += h(0);

	/* Wipe variables */
	XMEMSET(W, 0, sizeof(W));
	XMEMSET(T, 0, sizeof(T));
	}


	static INLINE void AddLength384(Sha384* sha384, word32 len)
	{
	word32 tmp = sha384->loLen;
	if ( (sha384->loLen += len) < tmp)
	sha384->hiLen++; /* carry low to high */
	}


	void Sha384Update(Sha384* sha384, const byte* data, word32 len)
	{
	/* do block size increments */
	byte* local = (byte*)sha384->buffer;

	while (len) {
	word32 add = min(len, SHA384_BLOCK_SIZE - sha384->buffLen);
	XMEMCPY(&local[sha384->buffLen], data, add);

	sha384->buffLen += add;
	data += add;
	len -= add;

	if (sha384->buffLen == SHA384_BLOCK_SIZE) {
	#ifdef LITTLE_ENDIAN_ORDER
	ByteReverseWords64(sha384->buffer, sha384->buffer,
	SHA384_BLOCK_SIZE);
	#endif
	Transform384(sha384);
	AddLength384(sha384, SHA384_BLOCK_SIZE);
	sha384->buffLen = 0;
	}
	}
	}


	void Sha384Final(Sha384* sha384, byte* hash)
	{
	byte* local = (byte*)sha384->buffer;

	AddLength384(sha384, sha384->buffLen); /* before adding pads */

	local[sha384->buffLen++] = 0x80; /* add 1 */

	/* pad with zeros */
	if (sha384->buffLen > SHA384_PAD_SIZE) {
	XMEMSET(&local[sha384->buffLen], 0, SHA384_BLOCK_SIZE -sha384->buffLen);
	sha384->buffLen += SHA384_BLOCK_SIZE - sha384->buffLen;

	#ifdef LITTLE_ENDIAN_ORDER
	ByteReverseWords64(sha384->buffer,sha384->buffer,SHA384_BLOCK_SIZE);
	#endif
	Transform384(sha384);
	sha384->buffLen = 0;
	}
	XMEMSET(&local[sha384->buffLen], 0, SHA384_PAD_SIZE - sha384->buffLen);

	/* put lengths in bits */
	sha384->hiLen = (sha384->loLen >> (8*sizeof(sha384->loLen) - 3)) +
	(sha384->hiLen << 3);
	sha384->loLen = sha384->loLen << 3;

	/* store lengths */
	#ifdef LITTLE_ENDIAN_ORDER
	ByteReverseWords64(sha384->buffer, sha384->buffer, SHA384_PAD_SIZE);
	#endif
	/* ! length ordering dependent on digest endian type ! */
	sha384->buffer[SHA384_BLOCK_SIZE / sizeof(word64) - 2] = sha384->hiLen;
	sha384->buffer[SHA384_BLOCK_SIZE / sizeof(word64) - 1] = sha384->loLen;

	Transform384(sha384);
	#ifdef LITTLE_ENDIAN_ORDER
	ByteReverseWords64(sha384->digest, sha384->digest, SHA384_DIGEST_SIZE);
	#endif
	XMEMCPY(hash, sha384->digest, SHA384_DIGEST_SIZE);

	InitSha384(sha384); /* reset state */
	}

	#endif /* CYASSL_SHA384 */

	#endif /* CYASSL_SHA512 */