| author | Santosh V Patil <santosh.v.patil@nokia.com> |
| Tue, 29 Sep 2009 16:08:12 +0530 | |
| changeset 6 | 50f2ff6984be |
| parent 0 | 2c201484c85f |
| permissions | -rw-r--r-- |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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/* |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
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* Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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* All rights reserved. |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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* This component and the accompanying materials are made available |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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* under the terms of the License "Eclipse Public License v1.0" |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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* which accompanies this distribution, and is available |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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* |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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* Initial Contributors: |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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* Nokia Corporation - initial contribution. |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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* |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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* Contributors: |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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* |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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* Description: |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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* |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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*/ |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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#include <bigint.h> |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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#include "windowslider.h" |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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#include "../common/inlines.h" |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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TWindowSlider::TWindowSlider(const TInteger& aExp, TUint aWindowSize) |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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: iExp(aExp), iSize(aWindowSize) |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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{
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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if(iSize == 0) |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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{
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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TUint expLen = iExp.BitCount(); |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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//These numbers are more or less arbitrary and can be tuned for empirical |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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//performance results if desired. It's a trade off between amount of |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
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//precomputation (more if larger iSize) and number of iterations |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
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//(more if smaller iSize). The current defaults were obtained |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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//from crypto++ |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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if( expLen <= 17 ) |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
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iSize = 1; |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
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else if( expLen <= 24 ) |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
changeset
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iSize = 2; |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
changeset
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else if( expLen <= 70 ) |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
changeset
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iSize = 3; |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
changeset
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else if( expLen <= 197 ) |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
changeset
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iSize = 4; |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
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else if( expLen <= 539 ) |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
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iSize = 5; |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
changeset
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else if( expLen <= 1434 ) |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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iSize = 6; |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
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else |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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iSize = 7; |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
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} |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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assert(iSize>=1 && iSize<=7); |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
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} |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
changeset
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|
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
changeset
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void TWindowSlider::FindNextWindow(TUint aBegin) |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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{
|
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
changeset
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assert(iExp.Bit(aBegin)); //initial bit must be 1 |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
changeset
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TInt end = aBegin; |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
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TUint temp = 0; |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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iValue = 0; |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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TUint j = 0; |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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for(TInt i=aBegin; i>=0 && j<iSize; i--, j++) |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
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{
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
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TUint saveMask = WORD_BITS - j - 1; |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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temp |= iExp.Bit(i) << saveMask; |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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if( temp & (1 << saveMask) ) |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
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{
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
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end = i; |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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iValue |= temp; //last valid substring |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
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} |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
changeset
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} |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
changeset
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69 |
|
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
diff
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iLength = aBegin - end + 1; |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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iValue >>= (WORD_BITS - iLength); |
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2c201484c85f
Move the Security package to EPL, and add the implementations of the cryptographic algorithms
Santosh Patil <santosh.v.patil@nokia.com>
parents:
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} |