author | hgs |
Fri, 11 Jun 2010 11:20:25 +0300 | |
changeset 26 | bcc434605a01 |
parent 0 | 1bce908db942 |
child 9 | 5d1d815214a5 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: Class is used for configuring mcc srtp crypto params |
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* |
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*/ |
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#ifndef MMCCSRTPCRYPTOPARAMS_H |
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#define MMCCSRTPCRYPTOPARAMS_H |
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|
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// INCLUDES |
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#include <e32base.h> |
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|
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// CONSTANTS |
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// The default bit length of the HMAC-SHA1 authentication tag |
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const TUint KMccSRTPAuthTagDefaultLength = 80; |
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|
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// default SRTP key derivation rate: 0 |
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const TUint16 KMccSRTPDefaultKeyDerivationRate = 0x00; |
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|
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// The default length of the SRTP prefix |
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const TUint KMccSRTPPrefixLength = 0; |
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|
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const TInt KMccReplayWindowSize = 64; |
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|
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// default SRTP ROC Transmission rate: 1 |
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const TUint16 KMccSRTPDefaultROCTransRate = 0x01; |
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|
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// The 80 bit length of the HMAC-SHA1 authentication tag (n_tag) |
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const TUint KMccSRTPAuthTagLength80 = 80; |
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|
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// The 32 bit length of the HMAC-SHA1 authentication tag (n_tag) |
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// Also recommending in RCCm3 as 4 octects |
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const TUint KMccSRTPAuthTagLength32 = 32; |
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|
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//recommending to use in RCCm1 or RCCm2 as 14 octets |
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const TUint KMccSRTPAuthTagLength112 = 112; |
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|
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/** |
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* Encyption algorithms. |
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*/ |
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enum TMccSRTPEncAlg |
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{ |
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ESrtpNullAlg = 0, |
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ESrtpEncAES_CM |
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}; |
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/** |
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* Authentication algorithms. |
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* With RCCm1, RCCm2 and RCCm3, ROC will be synchronized if SEQ%R==0 |
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*/ |
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enum TMccSRTPAuthAlg |
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{ |
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ESrtpAuthNull = 0, |
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ESrtpAuthHMAC_SHA1, |
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ESrtpAuthRCCm1, |
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ESrtpAuthRCCm2, |
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ESrtpAuthRCCm3 |
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}; |
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|
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/** |
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* The TMccSrtpCryptoParams captures the MCC SRTP crypto params |
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* into one class |
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* |
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* @lib N/A |
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* @since Series 60 3.2 |
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*/ |
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class TMccSrtpCryptoParams |
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{ |
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public: |
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//IF any of the following param changes it will cause the caculation changes. |
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inline TMccSrtpCryptoParams::TMccSrtpCryptoParams() : |
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iSrtpEncAlg( ESrtpEncAES_CM ), |
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iSrtcpEncAlg( ESrtpEncAES_CM ), |
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iSrtpAuthAlg( ESrtpAuthHMAC_SHA1 ), |
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iSrtcpAuthAlg(ESrtpAuthHMAC_SHA1 ), |
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iSrtpAuthTagLen( KMccSRTPAuthTagDefaultLength ), |
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iSrtcpAuthTagLen(KMccSRTPAuthTagDefaultLength ), |
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iSrtpKeyDervRate( KMccSRTPDefaultKeyDerivationRate ), |
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iSrtcpKeyDervRate( KMccSRTPDefaultKeyDerivationRate ), |
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iPrefixLen( KMccSRTPPrefixLength ), |
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iSrtpReplayProtection( ETrue ), |
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iSrtcpReplayProtection( ETrue), |
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iROCTransRate( KMccSRTPDefaultROCTransRate ), |
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iMasterKeysLifeTime ( 0 ), |
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iReplayWindowSizeHint ( KMccReplayWindowSize ), |
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iIsRCCm3Sync( EFalse ) |
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{ |
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}; |
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TMccSRTPEncAlg iSrtpEncAlg; //encoding algorithm |
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TMccSRTPEncAlg iSrtcpEncAlg; |
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TMccSRTPAuthAlg iSrtpAuthAlg; // authentication algorithm |
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TMccSRTPAuthAlg iSrtcpAuthAlg; |
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TUint iSrtpAuthTagLen; |
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TUint iSrtcpAuthTagLen; |
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TUint iSrtpKeyDervRate; //The key derivation rate |
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TUint iSrtcpKeyDervRate; |
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TUint iPrefixLen; // prefix length must be 0 |
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TBool iSrtpReplayProtection; // replay protection on/off |
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TBool iSrtcpReplayProtection; |
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TUint16 iROCTransRate; // Integrity transform parameter |
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TUint64 iMasterKeysLifeTime; //Set both for SRTP/SRTCP otherwise use default |
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TInt iReplayWindowSizeHint; //Set both for SRTP/SRTCP otherwise use default |
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TBool iIsRCCm3Sync; // using in RCCm3 only defined in RFC srtp-rcc04 Section 4 |
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}; |
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typedef TPckgBuf<TMccSrtpCryptoParams> TMccSrtpCryptoParamsPckg; |
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#endif /* MMCCSRTPCRYPTOPARAMS_H */ |
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// End of File |