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| //
// Creator: http://www.dicelocksecurity.com
// Version: vers.3.0.0.1
//
// Copyright © 2009-2010 DiceLock Security, LLC. All rights reserved.
//
// DISCLAIMER
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
// REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <memory.h>
#include <stdlib.h>
#include "sha512.h"
#define SHA512_Ch(x, y, z) ((x & y) ^ ((~x) & z))
#define SHA512_Maj(x, y, z) ((x & y) ^ (x & z) ^ (y & z))
#define SHA512_Operation_Ini(a, b, c, d, e, f, g, h, temp1, temp2, j)\
(*temp1) = (*h) + SHA512_SUM_1((*e)) + SHA512_Ch((*e), (*f), (*g)) + (this->constants[j]) + (messageSchedule[j]);\
(*temp2) = SHA512_SUM_0((*a)) + SHA512_Maj((*a), (*b), (*c));\
(*h) = (*g);\
(*g) = (*f);\
(*f) = (*e);\
(*e) = (*d) + (*temp1);\
(*d) = (*c);\
(*c) = (*b);\
(*b) = (*a);\
(*a) = ((*temp1) + (*temp2));
#define SHA512_Operation_Tail(a, b, c, d, e, f, g, h, temp1, temp2, j)\
messageSchedule[j] = (SHA512_SIG_1(messageSchedule[j-2]) + messageSchedule[j-7] + SHA512_SIG_0(messageSchedule[j-15]) + messageSchedule[j-16]);\
(*temp1) = (*h) + SHA512_SUM_1((*e)) + SHA512_Ch((*e), (*f), (*g)) + (this->constants[j]) + (messageSchedule[j]);\
(*temp2) = SHA512_SUM_0((*a)) + SHA512_Maj((*a), (*b), (*c));\
(*h) = (*g);\
(*g) = (*f);\
(*f) = (*e);\
(*e) = (*d) + (*temp1);\
(*d) = (*c);\
(*c) = (*b);\
(*b) = (*a);\
(*a) = ((*temp1) + (*temp2));
namespace DiceLockSecurity {
namespace Hash {
// Hash Algorithms Class enumerator name
const Hashes Sha512::hashName = SHA_512;
// Number of hash bits
const unsigned short int Sha512::hashBits = SHA512_DIGESTBITS;
// Number of hash unsigned chars
const unsigned short int Sha512::hashUCs = SHA512_DIGESTUCHARS;
// Number of hash unsigned short ints
const unsigned short int Sha512::hashUSs = SHA512_DIGESTUSHORTS;
// Number of hash unsigned long ints
const unsigned short int Sha512::hashULs = SHA512_DIGESTULONGS;
// Number of hash unsigned 64 bits
const unsigned short int Sha512::hash64s = SHA512_DIGESTULG64S;
// Number of data bits to compute hash
const unsigned short int Sha512::dataHashBits = SHA512_DATABITS;
// Number of data unsigned chars to compute hash
const unsigned short int Sha512::dataHashUCs = SHA512_DATAUCHARS;
// Number of data unsigned long integers to compute hash
const unsigned short int Sha512::dataHashULs = SHA512_DATAULONGS;
// Number of data unsigned long integers to compute hash
const unsigned short int Sha512::dataHash64s = SHA512_DATAULG64S;
// Equation modulo constant value
const unsigned short int Sha512::equationModulo = SHA512_EQUATIONMODULO;
// Number of schedule words
const unsigned short int Sha512::scheduleNumber = SHA512_MESSAGESCHEDULE;
// Initial hash values of SHA1
const unsigned __int64 Sha512::initials[SHA512_DIGESTULONGS] =
{0x6a09e667f3bcc908,
0xbb67ae8584caa73b,
0x3c6ef372fe94f82b,
0xa54ff53a5f1d36f1,
0x510e527fade682d1,
0x9b05688c2b3e6c1f,
0x1f83d9abfb41bd6b,
0x5be0cd19137e2179};
// Computational constant values of SHA1
const unsigned __int64 Sha512::constants[SHA512_COMPUTECONSTANTS] =
{0x428a2f98d728ae22, 0x7137449123ef65cd, 0xb5c0fbcfec4d3b2f, 0xe9b5dba58189dbbc,
0x3956c25bf348b538, 0x59f111f1b605d019, 0x923f82a4af194f9b, 0xab1c5ed5da6d8118,
0xd807aa98a3030242, 0x12835b0145706fbe, 0x243185be4ee4b28c, 0x550c7dc3d5ffb4e2,
0x72be5d74f27b896f, 0x80deb1fe3b1696b1, 0x9bdc06a725c71235, 0xc19bf174cf692694,
0xe49b69c19ef14ad2, 0xefbe4786384f25e3, 0x0fc19dc68b8cd5b5, 0x240ca1cc77ac9c65,
0x2de92c6f592b0275, 0x4a7484aa6ea6e483, 0x5cb0a9dcbd41fbd4, 0x76f988da831153b5,
0x983e5152ee66dfab, 0xa831c66d2db43210, 0xb00327c898fb213f, 0xbf597fc7beef0ee4,
0xc6e00bf33da88fc2, 0xd5a79147930aa725, 0x06ca6351e003826f, 0x142929670a0e6e70,
0x27b70a8546d22ffc, 0x2e1b21385c26c926, 0x4d2c6dfc5ac42aed, 0x53380d139d95b3df,
0x650a73548baf63de, 0x766a0abb3c77b2a8, 0x81c2c92e47edaee6, 0x92722c851482353b,
0xa2bfe8a14cf10364, 0xa81a664bbc423001, 0xc24b8b70d0f89791, 0xc76c51a30654be30,
0xd192e819d6ef5218, 0xd69906245565a910, 0xf40e35855771202a, 0x106aa07032bbd1b8,
0x19a4c116b8d2d0c8, 0x1e376c085141ab53, 0x2748774cdf8eeb99, 0x34b0bcb5e19b48a8,
0x391c0cb3c5c95a63, 0x4ed8aa4ae3418acb, 0x5b9cca4f7763e373, 0x682e6ff3d6b2b8a3,
0x748f82ee5defb2fc, 0x78a5636f43172f60, 0x84c87814a1f0ab72, 0x8cc702081a6439ec,
0x90befffa23631e28, 0xa4506cebde82bde9, 0xbef9a3f7b2c67915, 0xc67178f2e372532b,
0xca273eceea26619c, 0xd186b8c721c0c207, 0xeada7dd6cde0eb1e, 0xf57d4f7fee6ed178,
0x06f067aa72176fba, 0x0a637dc5a2c898a6, 0x113f9804bef90dae, 0x1b710b35131c471b,
0x28db77f523047d84, 0x32caab7b40c72493, 0x3c9ebe0a15c9bebc, 0x431d67c49c100d4c,
0x4cc5d4becb3e42b6, 0x597f299cfc657e2a, 0x5fcb6fab3ad6faec, 0x6c44198c4a475817};
// Gets the number of unsigned chars in the hash block to be hashed
unsigned short int Sha512::GetDataHashUCs(void) {
return this->dataHashUCs;
}
// Adds messaage length processed, if it is greater than unsigned long makes use
// of another usigned long to store overflow
void Sha512::AddMessageLength(unsigned long int byteLength) {
if ((this->messageBitLengthLow + (byteLength * BYTEBITS)) < this->messageBitLengthLow)
// add overflow of unsigned long
this->messageBitLengthHigh++;
this->messageBitLengthLow += (byteLength * BYTEBITS);
}
// Computes the chunk block of information
void Sha512::Compress(BaseCryptoRandomStream* digest, unsigned char* stream) {
unsigned __int64 a, b, c, d, e, f, g, h, temp1, temp2;
unsigned short int i;
// Initilizing working variables
a = digest->Get64Position(0);
b = digest->Get64Position(1);
c = digest->Get64Position(2);
d = digest->Get64Position(3);
e = digest->Get64Position(4);
f = digest->Get64Position(5);
g = digest->Get64Position(6);
h = digest->Get64Position(7);
for (i = 0; i < this->dataHash64s; i++) {
messageSchedule[i] = (((unsigned __int64)stream[i*8]) << 56) | (((unsigned __int64)stream[i*8+1]) << 48)
| (((unsigned __int64)stream[i*8+2]) << 40) | (((unsigned __int64)stream[i*8+3]) << 32)
| (((unsigned __int64)stream[i*8+4]) << 24) | (((unsigned __int64)stream[i*8+5]) << 16)
| (((unsigned __int64)stream[i*8+6]) << 8) | (((unsigned __int64)stream[i*8+7]));
}
// 0 <= t <= 19
for (i = 0; i < 16; i++) {
SHA512_Operation_Ini(&a, &b, &c, &d, &e, &f, &g, &h, &temp1, &temp2, i);
}
// 16 <= t <= 79
for (i = 16; i < SHA512_OPERATIONS; i++) {
SHA512_Operation_Tail(&a, &b, &c, &d, &e, &f, &g, &h, &temp1, &temp2, i);
}
// Upgrading hash values
digest->Set64Position(0, digest->Get64Position(0) + a);
digest->Set64Position(1, digest->Get64Position(1) + b);
digest->Set64Position(2, digest->Get64Position(2) + c);
digest->Set64Position(3, digest->Get64Position(3) + d);
digest->Set64Position(4, digest->Get64Position(4) + e);
digest->Set64Position(5, digest->Get64Position(5) + f);
digest->Set64Position(6, digest->Get64Position(6) + g);
digest->Set64Position(7, digest->Get64Position(7) + h);
}
// Constructor, default
Sha512::Sha512() {
}
// Destructor
Sha512::~Sha512() {
}
// Initializes common states of Sha1 algorithm
void Sha512::Initialize(void) {
this->messageDigest->Set64Position(0, this->initials[0]);
this->messageDigest->Set64Position(1, this->initials[1]);
this->messageDigest->Set64Position(2, this->initials[2]);
this->messageDigest->Set64Position(3, this->initials[3]);
this->messageDigest->Set64Position(4, this->initials[4]);
this->messageDigest->Set64Position(5, this->initials[5]);
this->messageDigest->Set64Position(6, this->initials[6]);
this->messageDigest->Set64Position(7, this->initials[7]);
this->remainingBytesLength = 0;
this->messageBitLengthHigh = 0;
this->messageBitLengthLow = 0;
}
// Adds the BaseCryptoRandomStream to the hash
void Sha512::Add(BaseCryptoRandomStream* stream) {
unsigned long int startStreamByte = 0, processBytes = 0;
long int numBytes = 0;
// If bytes left from previous added stream, then they will be processed now with added data from new stream
if (this->remainingBytesLength) {
if ((this->remainingBytesLength + stream->GetUCLength()) > ((unsigned long int)this->GetDataHashUCs() - 1)) {
// Setting the point to start the current stream processed
startStreamByte = this->GetDataHashUCs() - this->remainingBytesLength;
processBytes = stream->GetUCLength() - (this->GetDataHashUCs() - this->remainingBytesLength);
memcpy(this->remainingBytes + this->remainingBytesLength, stream->GetUCAddressPosition(0), this->GetDataHashUCs() - this->remainingBytesLength);
// Process remaining bytes of previous streams adn 64 byte padding of current stream
this->Compress(this->messageDigest, this->remainingBytes);
// Updating message byt length processed
this->AddMessageLength(this->GetDataHashUCs());
// Remaining bytes of previous strema set to 0
this->remainingBytesLength = 0;
}
else {
processBytes = stream->GetUCLength();
}
}
else {
processBytes = stream->GetUCLength();
startStreamByte = 0;
}
for (numBytes = 0; processBytes > ((unsigned long int)this->GetDataHashUCs() - 1); numBytes += this->GetDataHashUCs()) {
// Process the chunk
this->Compress(this->messageDigest, stream->GetUCAddressPosition(startStreamByte + numBytes));
// Updating message byt length processed
this->AddMessageLength(this->GetDataHashUCs());
processBytes -= this->GetDataHashUCs();
}
// If remaining bytes left, they will be copied for the next added stream
if (processBytes > 0) {
memcpy(this->remainingBytes + this->remainingBytesLength, stream->GetUCAddressPosition(stream->GetUCLength() - processBytes), processBytes);
this->remainingBytesLength += processBytes;
}
}
// Finalize the hash
void Sha512::Finalize(void) {
this->remainingBytes[this->remainingBytesLength] = 0x80;
if ((this->remainingBytesLength * BYTEBITS) % this->dataHashBits >= this->equationModulo) {
memset(this->remainingBytes + this->remainingBytesLength + 1, 0, this->GetDataHashUCs() - this->remainingBytesLength -1);
this->Compress(this->messageDigest, this->remainingBytes);
this->AddMessageLength(this->remainingBytesLength);
int i; i=this->GetDataHashUCs();
memset(this->remainingBytes, 0, this->GetDataHashUCs());
this->remainingBytesLength = 0;
}
else {
memset(this->remainingBytes + this->remainingBytesLength + 1, 0, this->GetDataHashUCs() - this->remainingBytesLength -1);
}
this->AddMessageLength(this->remainingBytesLength);
this->remainingBytes[112] = (((unsigned __int64)this->messageBitLengthHigh) >> 56) & 255;
this->remainingBytes[113] = (((unsigned __int64)this->messageBitLengthHigh) >> 48) & 255;
this->remainingBytes[114] = (((unsigned __int64)this->messageBitLengthHigh) >> 40) & 255;
this->remainingBytes[115] = (((unsigned __int64)this->messageBitLengthHigh) >> 32) & 255;
this->remainingBytes[116] = (((unsigned __int64)this->messageBitLengthHigh) >> 24) & 255;
this->remainingBytes[117] = (((unsigned __int64)this->messageBitLengthHigh) >> 16) & 255;
this->remainingBytes[118] = (((unsigned __int64)this->messageBitLengthHigh) >> 8) & 255;
this->remainingBytes[119] = (((unsigned __int64)this->messageBitLengthHigh)) & 255;
this->remainingBytes[120] = (((unsigned __int64)this->messageBitLengthLow) >> 56) & 255;
this->remainingBytes[121] = (((unsigned __int64)this->messageBitLengthLow) >> 48) & 255;
this->remainingBytes[122] = (((unsigned __int64)this->messageBitLengthLow) >> 40) & 255;
this->remainingBytes[123] = (((unsigned __int64)this->messageBitLengthLow) >> 32) & 255;
this->remainingBytes[124] = (((unsigned __int64)this->messageBitLengthLow) >> 24) & 255;
this->remainingBytes[125] = (((unsigned __int64)this->messageBitLengthLow) >> 16) & 255;
this->remainingBytes[126] = (((unsigned __int64)this->messageBitLengthLow) >> 8) & 255;
this->remainingBytes[127] = (((unsigned __int64)this->messageBitLengthLow)) & 255;
this->Compress(this->messageDigest, this->remainingBytes);
}
// Gets hash length in bits
unsigned short int Sha512::GetBitHashLength(void) {
return this->hashBits;
}
// Gets hash length in unsigned chars
unsigned short int Sha512::GetUCHashLength(void) {
return this->hashUCs;
}
// Gets hash length in unsigned short ints
unsigned short int Sha512::GetUSHashLength(void) {
return this->hashUSs;
}
// Gets hash length in unsigned long ints
unsigned short int Sha512::GetULHashLength(void) {
return this->hashULs;
}
// Gets hash length in unsigned 64 bits
unsigned short int Sha512::Get64HashLength(void) {
return this->hash64s;
}
// Gets the type of the object
Hashes Sha512::GetType(void) {
return this->hashName;
}
}
}
|
HashDigester 3.0.0.1 
