1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/persistentdata/persistentstorage/store/UCRYPT/UE_STRM.CPP Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,378 @@
1.4 +// Copyright (c) 1998-2009 Nokia Corporation and/or its subsidiary(-ies).
1.5 +// All rights reserved.
1.6 +// This component and the accompanying materials are made available
1.7 +// under the terms of "Eclipse Public License v1.0"
1.8 +// which accompanies this distribution, and is available
1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
1.10 +//
1.11 +// Initial Contributors:
1.12 +// Nokia Corporation - initial contribution.
1.13 +//
1.14 +// Contributors:
1.15 +//
1.16 +// Description:
1.17 +//
1.18 +
1.19 +#include "UE_STD.H"
1.20 +
1.21 +#include <pbe.h>
1.22 +
1.23 +#define PBEDATA_NO_EXPORTED_CONSTRUCTORS
1.24 +#include <pbedata.h>
1.25 +
1.26 +
1.27 +
1.28 +
1.29 +
1.30 +EXPORT_C void RDecryptStream::OpenL(RReadStream& aHost,const CPBEncryptionBase& aKey)
1.31 +/**
1.32 +Open a decrypting read stream to aHost.
1.33 +Prepares the source stream owned by the specified read stream interface object for
1.34 +reading through a decrypting filter.
1.35 +@publishedPartner
1.36 +@leave KErrNoMemory
1.37 +@param aHost The read stream interface object for the source stream.
1.38 +This function does not take ownership of the source stream.
1.39 +@param aKey A Password Based Encryption object for encryption handling.
1.40 +*/
1.41 + {
1.42 + CPBDecryptor* decryptor = aKey.NewDecryptLC();
1.43 + iFilter.SetL(aHost.Source(),decryptor,iFilter.ERead);
1.44 + CleanupStack::Pop(decryptor);
1.45 + RReadStream::Attach(&iFilter);
1.46 + }
1.47 +
1.48 +EXPORT_C void RDecryptStream::OpenLC(RReadStream& aHost,const CPBEncryptionBase& aKey)
1.49 +/**
1.50 +Open a decrypting read stream to aHost.
1.51 +Prepares the source stream owned by the specified read stream interface object for
1.52 +reading through a decrypting filter, and puts a cleanup item onto the cleanup stack.
1.53 +@publishedPartner
1.54 +@leave KErrNoMemory
1.55 +@param aHost The read stream interface object for the source stream.
1.56 +This function does not take ownership of the source stream.
1.57 +@param aKey A Password Based Encryption object for encryption handling.
1.58 +*/
1.59 +{
1.60 + OpenL(aHost,aKey);
1.61 + PushL();
1.62 + }
1.63 +
1.64 +EXPORT_C void RDecryptStream::AttachL(RReadStream& aHost,const CPBEncryptionBase& aKey)
1.65 +/**
1.66 +Attach a decrypting read stream to aHost.
1.67 +Takes ownership of the source stream owned by the specified read stream interface object,
1.68 +and prepares the stream for reading through a decrypting filter.
1.69 +@publishedPartner
1.70 +@leave KErrNoMemory
1.71 +@param aHost The read stream interface object for the source stream.
1.72 +@param aKey A Password Based Encryption object for encryption handling.
1.73 +*/ {
1.74 + AttachLC(aHost,aKey);
1.75 + CleanupStack::Pop();
1.76 + }
1.77 +
1.78 +EXPORT_C void RDecryptStream::AttachLC(RReadStream& aHost,const CPBEncryptionBase& aKey)
1.79 +/**
1.80 +Attach a decrypting read stream to aHost.
1.81 +Takes ownership of the source stream owned by the specified read stream interface object,
1.82 +prepares the stream for reading through a decrypting filter, and puts a cleanup item onto the cleanup stack.
1.83 +@publishedPartner
1.84 +@leave KErrNoMemory
1.85 +@param aHost The read stream interface object for the source stream.
1.86 +@param aKey A Password Based Encryption object for encryption handling.
1.87 +*/ {
1.88 + MStreamBuf* host=aHost.Source();
1.89 + aHost=RReadStream();
1.90 + RReadStream::Attach(host); // initial cleanup via this
1.91 + PushL();
1.92 +
1.93 + CPBDecryptor* decryptor = aKey.NewDecryptLC();
1.94 + iFilter.SetL(host,decryptor,iFilter.ERead|iFilter.EAttached);
1.95 + CleanupStack::Pop(decryptor);
1.96 +
1.97 + RReadStream::Attach(&iFilter);
1.98 + }
1.99 +
1.100 +//////////////////////////////////////////////////////////////////////////////
1.101 +
1.102 +
1.103 +
1.104 +
1.105 +
1.106 +EXPORT_C void REncryptStream::OpenL(RWriteStream& aHost,const CPBEncryptionBase& aKey)
1.107 +/**
1.108 +Open an encrypting write stream over aHost.
1.109 +Prepares the target stream owned by the specified write stream interface object for
1.110 +writing through an encrypting filter.
1.111 +@publishedPartner
1.112 +@leave KErrNoMemory
1.113 +@param aHost The write stream interface object for the target stream. The function does not take ownership of the target stream.
1.114 +@param aKey A Password Based Encryption object for encryption handling.
1.115 +*/
1.116 + {
1.117 + CPBEncryptor* encryptor = aKey.NewEncryptLC();
1.118 + iFilter.SetL(aHost.Sink(),encryptor,iFilter.EWrite);
1.119 + CleanupStack::Pop(encryptor);
1.120 + RWriteStream::Attach(&iFilter);
1.121 + }
1.122 +
1.123 +EXPORT_C void REncryptStream::OpenLC(RWriteStream& aHost,const CPBEncryptionBase& aKey)
1.124 +/**
1.125 +Open an encrypting write stream over aHost.
1.126 +Prepares the target stream owned by the specified write stream interface object for
1.127 +writing through an encrypting filter and puts a cleanup item onto the cleanup stack.
1.128 +@publishedPartner
1.129 +@leave KErrNoMemory
1.130 +@param aHost The write stream interface object for the target stream. The function does not take ownership of the target stream.
1.131 +@param aKey A Password Based Encryption object for encryption handling.
1.132 +*/
1.133 + {
1.134 + OpenL(aHost,aKey);
1.135 + PushL();
1.136 + }
1.137 +
1.138 +EXPORT_C void REncryptStream::AttachL(RWriteStream& aHost,const CPBEncryptionBase& aKey)
1.139 +/**
1.140 +Attach an encrypting write stream to aHost.
1.141 +Takes ownership of the target stream owned by the specified write stream interface object,
1.142 +and prepares the stream for writing through an encrypting filter.
1.143 +@publishedPartner
1.144 +@leave KErrNoMemory
1.145 +@param aHost The write stream interface object for the target stream
1.146 +@param aKey A Password Based Encryption object for encryption handling.
1.147 +*/
1.148 + {
1.149 + AttachLC(aHost,aKey);
1.150 + CleanupStack::Pop();
1.151 + }
1.152 +
1.153 +EXPORT_C void REncryptStream::AttachLC(RWriteStream& aHost,const CPBEncryptionBase& aKey)
1.154 +/**
1.155 +Attach an encrypting write stream to aHost.
1.156 +Takes ownership of the target stream owned by the specified write stream interface object,
1.157 +prepares the stream for writing through an encrypting filter, and puts a cleanup item onto the cleanup stack.
1.158 +@publishedPartner
1.159 +@leave KErrNoMemory
1.160 +@param aHost The write stream interface object for the target stream
1.161 +@param aKey A Password Based Encryption object for encryption handling.
1.162 +*/
1.163 + {
1.164 + MStreamBuf* host=aHost.Sink();
1.165 + aHost=RWriteStream();
1.166 + RWriteStream::Attach(host); // initial cleanup via this
1.167 + PushL();
1.168 +
1.169 + CPBEncryptor* encryptor = aKey.NewEncryptLC();
1.170 + iFilter.SetL(host,encryptor,iFilter.EWrite|iFilter.EAttached);
1.171 + CleanupStack::Pop(encryptor);
1.172 +
1.173 + RWriteStream::Attach(&iFilter);
1.174 + }
1.175 +
1.176 +/////////////////////////////////////////////////////////////////////////
1.177 +// PBE data methods that depend on store, prevents static dependency
1.178 +/////////////////////////////////////////////////////////////////////////
1.179 +
1.180 +// CPBEncryptionData
1.181 +
1.182 +// HPRE-5TDFK2: Remove Store/estor.dll dependency on Cryptography/pbe.dll
1.183 +// This method is DUPLICATED in common/generic/security/crypto/source/pbe/pbedata.cpp
1.184 +CPBEncryptionData::CPBEncryptionData(void)
1.185 + {
1.186 + }
1.187 +
1.188 +// HPRE-5TDFK2: Remove Store/estor.dll dependency on Cryptography/pbe.dll
1.189 +// This method is DUPLICATED in common/generic/security/crypto/source/pbe/pbedata.cpp
1.190 +CPBEncryptionData::~CPBEncryptionData(void)
1.191 + {
1.192 + delete iParms;
1.193 + delete iAuth;
1.194 + }
1.195 +
1.196 +EXPORT_C CPBEncryptionData* CPBEncryptionData::NewL(RReadStream& aStream)
1.197 + {
1.198 + CPBEncryptionData* self = NewLC(aStream);
1.199 + CleanupStack::Pop(self);
1.200 + return self;
1.201 + }
1.202 +
1.203 +EXPORT_C CPBEncryptionData* CPBEncryptionData::NewLC(RReadStream& aStream)
1.204 + {
1.205 + CPBEncryptionData* self = new(ELeave)CPBEncryptionData();
1.206 + CleanupStack::PushL(self);
1.207 + self->ConstructL(aStream);
1.208 + return self;
1.209 + }
1.210 +
1.211 +void CPBEncryptionData::ConstructL(RReadStream& aStream)
1.212 + {
1.213 + iAuth = CPBAuthData::NewL(aStream);
1.214 + iParms = CPBEncryptParms::NewL(aStream);
1.215 + }
1.216 +
1.217 +EXPORT_C void CPBEncryptionData::ExternalizeL(RWriteStream& aStream) const
1.218 + {
1.219 + iAuth->ExternalizeL(aStream);
1.220 + iParms->ExternalizeL(aStream);
1.221 + }
1.222 +
1.223 +// CPBEncryptParms
1.224 +
1.225 +// HPRE-5TDFK2: Remove Store/estor.dll dependency on Cryptography/pbe.dll
1.226 +// This method is DUPLICATED in common/generic/security/crypto/source/pbe/pbedata.cpp
1.227 +CPBEncryptParms::CPBEncryptParms()
1.228 + {
1.229 + }
1.230 +
1.231 +// HPRE-5TDFK2: Remove Store/estor.dll dependency on Cryptography/pbe.dll
1.232 +// This method is DUPLICATED in common/generic/security/crypto/source/pbe/pbedata.cpp
1.233 +CPBEncryptParms::~CPBEncryptParms()
1.234 + {
1.235 +#ifdef SYMBIAN_PKCS12
1.236 + delete iData;
1.237 +#endif // #ifdef SYMBIAN_PKCS12
1.238 + delete iSalt;
1.239 + delete iIV;
1.240 + }
1.241 +
1.242 +EXPORT_C CPBEncryptParms* CPBEncryptParms::NewL(RReadStream& aStream)
1.243 + {
1.244 + CPBEncryptParms* self = NewLC(aStream);
1.245 + CleanupStack::Pop(self);
1.246 + return self;
1.247 + }
1.248 +
1.249 +EXPORT_C CPBEncryptParms* CPBEncryptParms::NewLC(RReadStream& aStream)
1.250 + {
1.251 + CPBEncryptParms* self = new(ELeave)CPBEncryptParms();
1.252 + CleanupStack::PushL(self);
1.253 + self->ConstructL(aStream);
1.254 + return self;
1.255 + }
1.256 +
1.257 +#ifdef SYMBIAN_PKCS12
1.258 +
1.259 +void CPBEncryptParms::ConstructL(RReadStream& aStream)
1.260 + {
1.261 + iData = new(ELeave) TParamsData;
1.262 +
1.263 + TCardinality cipher;
1.264 + aStream >> cipher;
1.265 + TInt32 cipherInt32 = (TInt32) cipher;
1.266 + iData->iCipher = (TPBECipher)(cipherInt32 & ~KBit16);
1.267 +
1.268 + // if bit 16 of the stored cipher is set, then a KDF
1.269 + // follows. (This preserves data compatability.)
1.270 + if ((cipherInt32 & KBit16) == 0)
1.271 + iData->iKdf = EKdfPkcs5;
1.272 + else
1.273 + {
1.274 + TInt32 kdf;
1.275 + aStream >> kdf;
1.276 + iData->iKdf = (TKdf) kdf;
1.277 + }
1.278 +
1.279 + iSalt = HBufC8::NewL(aStream, KMaxTInt);
1.280 +
1.281 + TCardinality iterations;
1.282 + aStream >> iterations;
1.283 + iIterations = iterations;
1.284 +
1.285 + iIV = HBufC8::NewL(aStream, KMaxTInt);
1.286 + }
1.287 +
1.288 +#else
1.289 +
1.290 +void CPBEncryptParms::ConstructL(RReadStream& aStream)
1.291 + {
1.292 + TCardinality cipher;
1.293 + aStream >> cipher;
1.294 + iCipher = (TPBECipher)((TUint)(cipher));
1.295 +
1.296 + iSalt = HBufC8::NewL(aStream, KMaxTInt);
1.297 +
1.298 + TCardinality iterations;
1.299 + aStream >> iterations;
1.300 + iIterations = iterations;
1.301 +
1.302 + iIV = HBufC8::NewL(aStream, KMaxTInt);
1.303 + }
1.304 +
1.305 +#endif // #else #ifdef SYMBIAN_PKCS12
1.306 +
1.307 +#ifdef SYMBIAN_PKCS12
1.308 +
1.309 +EXPORT_C void CPBEncryptParms::ExternalizeL(RWriteStream& aStream) const
1.310 + {
1.311 + TUint32 cipherInt32 = iData->iCipher;
1.312 + if (iData->iKdf != EKdfPkcs5)
1.313 + cipherInt32 |= KBit16;
1.314 + aStream << TCardinality(cipherInt32);
1.315 +
1.316 + if (iData->iKdf != EKdfPkcs5)
1.317 + aStream << (TInt32) iData->iKdf;
1.318 +
1.319 + aStream << *iSalt;
1.320 + aStream << TCardinality(iIterations);
1.321 + aStream << *iIV;
1.322 + }
1.323 +
1.324 +#else
1.325 +
1.326 +EXPORT_C void CPBEncryptParms::ExternalizeL(RWriteStream& aStream) const
1.327 + {
1.328 + aStream << TCardinality((TUint)iCipher);
1.329 + aStream << *iSalt;
1.330 + aStream << TCardinality(iIterations);
1.331 + aStream << *iIV;
1.332 + }
1.333 +
1.334 +#endif // #else #ifdef SYMBIAN_PKCS12
1.335 +
1.336 +// CPBAuthData
1.337 +
1.338 +// HPRE-5TDFK2: Remove Store/estor.dll dependency on Cryptography/pbe.dll
1.339 +// This method is DUPLICATED in common/generic/security/crypto/source/pbe/pbedata.cpp
1.340 +CPBAuthData::CPBAuthData()
1.341 + {
1.342 + }
1.343 +
1.344 +// HPRE-5TDFK2: Remove Store/estor.dll dependency on Cryptography/pbe.dll
1.345 +// This method is DUPLICATED in common/generic/security/crypto/source/pbe/pbedata.cpp
1.346 +CPBAuthData::~CPBAuthData()
1.347 + {
1.348 + delete iAuthKey;
1.349 + delete iSalt;
1.350 + }
1.351 +
1.352 +EXPORT_C CPBAuthData* CPBAuthData::NewL(RReadStream& aStream)
1.353 + {
1.354 + CPBAuthData* self = NewLC(aStream);
1.355 + CleanupStack::Pop(self);
1.356 + return self;
1.357 + }
1.358 +
1.359 +EXPORT_C CPBAuthData* CPBAuthData::NewLC(RReadStream& aStream)
1.360 + {
1.361 + CPBAuthData* self = new(ELeave)CPBAuthData();
1.362 + CleanupStack::PushL(self);
1.363 + self->ConstructL(aStream);
1.364 + return self;
1.365 + }
1.366 +
1.367 +void CPBAuthData::ConstructL(RReadStream& aStream)
1.368 + {
1.369 + iAuthKey = HBufC8::NewL(aStream, KMaxTInt);
1.370 + iSalt = HBufC8::NewL(aStream, KMaxTInt);
1.371 + TCardinality iterations;
1.372 + aStream >> iterations;
1.373 + iIterations = iterations;
1.374 + }
1.375 +
1.376 +EXPORT_C void CPBAuthData::ExternalizeL(RWriteStream& aStream) const
1.377 + {
1.378 + aStream << *iAuthKey;
1.379 + aStream << *iSalt;
1.380 + aStream << TCardinality(iIterations);
1.381 + }