crypto/weakcrypto/source/common/cryptostrength.cpp
author Shabe Razvi <shaber@symbian.org>
Fri, 13 Nov 2009 15:55:01 +0000
branchRCL_1
changeset 25 29f45646a5e3
parent 0 2c201484c85f
permissions -rw-r--r--
Added tag PDK_2.0.1 for changeset e60b2dbc57a0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
0
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
     1
/*
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
     2
* Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
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
     3
* All rights reserved.
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
     4
* This component and the accompanying materials are made available
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
     5
* under the terms of the License "Eclipse Public License v1.0"
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
     6
* which accompanies this distribution, and is available
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
     7
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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
     8
*
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
     9
* Initial Contributors:
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
    10
* Nokia Corporation - initial contribution.
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
    11
*
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
    12
* Contributors:
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
    13
*
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
    14
* Description: 
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
    15
*
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
    16
*/
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
    17
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
    18
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
    19
#include <e32base.h>
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
    20
#include "cryptostrength.h"
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
    21
#include <securityerr.h>
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
    22
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
    23
#ifdef CRYPTO_STRONG_BUILD
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
    24
const TInt KDTIMaxSymmetricKeyBits = KMaxTInt;
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
    25
const TInt KDTIMaxAsymmetricKeyBits = KMaxTInt;
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
    26
const TCrypto::TStrength KCryptoStrength=TCrypto::EStrong;
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
    27
#else //CRYPTO_WEAK_BUILD
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
    28
const TInt KDTIMaxSymmetricKeyBits = 56;
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
    29
const TInt KDTIMaxAsymmetricKeyBits = 512;
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
    30
const TCrypto::TStrength KCryptoStrength=TCrypto::EWeak;
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
    31
#endif //CRYPTO_STRONG_BUILD
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
    32
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
    33
EXPORT_C TCrypto::TStrength TCrypto::Strength(void)
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
    34
	{
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
    35
	return (KCryptoStrength);
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
    36
	}
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
    37
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
    38
EXPORT_C TBool TCrypto::IsSymmetricWeakEnoughL(TInt aSymmetricKeyBits)
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
    39
	{
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
    40
	if(aSymmetricKeyBits > KDTIMaxSymmetricKeyBits)
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
    41
		{
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
    42
		User::Leave(KErrKeyNotWeakEnough);
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
    43
		}
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
    44
	return ETrue;
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
    45
	}
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
    46
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
    47
EXPORT_C TBool TCrypto::IsAsymmetricWeakEnoughL(TInt aAsymmetricKeyBits)
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
    48
	{
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
    49
	if(aAsymmetricKeyBits > KDTIMaxAsymmetricKeyBits)
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
    50
		{
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
    51
		User::Leave(KErrKeyNotWeakEnough);
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
    52
		}
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
    53
	return ETrue;
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
    54
	}
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
    55