CPaddingPKCS7 Class Reference
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class CPaddingPKCS7 : public CPadding
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This concrete subclass of
CPadding
implements padding according to the PKCS#7/TLS standard.
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Inherited Functions
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CBase::CBase()
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CBase::Delete(CBase *)
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CBase::Extension_(TUint,TAny *&,TAny *)
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CBase::operator new(TUint)
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CBase::operator new(TUint,TAny *)
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CBase::operator new(TUint,TLeave)
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CBase::operator new(TUint,TLeave,TUint)
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CBase::operator new(TUint,TUint)
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CBase::~CBase()
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CPadding::BlockSize(void)const
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CPadding::CPadding(TInt)
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CPadding::GetExtension(TUint,TAny *&,TAny *)
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CPadding::MaxUnPaddedLength(TInt)const
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CPadding::PadL(const TDesC8 &,TDes8 &)
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CPadding::SetBlockSize(TInt)
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Constructor & Destructor Documentation
CPaddingPKCS7(TInt)
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IMPORT_C
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CPaddingPKCS7
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(
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TInt
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aBlockBytes
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)
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[protected]
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Parameters
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TInt
aBlockBytes
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The block size in bytes.
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CPaddingPKCS7(void)
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CPaddingPKCS7
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(
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void
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)
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[private]
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CPaddingPKCS7(const CPaddingPKCS7 &)
Member Functions Documentation
DoPadL(const TDesC8 &, TDes8 &)
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void
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DoPadL
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(
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const
TDesC8
&
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aInput,
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TDes8
&
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aOutput
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)
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[private, virtual]
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MaxPaddedLength(TInt)
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TInt
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MaxPaddedLength
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(
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TInt
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aInputBytes
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)
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const [virtual]
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Gets the size of the aOutput buffer, in a call to
PadL()
, must be in order to accommodate a block size of
BlockSize()
and an input size of aInputBytes.
Note:
By default, this function returns the output of
BlockSize()
. If a derived padding system outputs more than a single block of padding, one must override this function and return the appropriate value.
Parameters
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TInt
aInputBytes
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The amount of data to be padded out in bytes.
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MinPaddingLength(void)
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TInt
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MinPaddingLength
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(
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void
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)
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const [virtual]
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Gets the smallest number of bytes that
PadL()
will ever add to aInput in order to get a valid block aligned aOutput.
For example, in SSLv3 padding, if the block size is 8 and aInput is 7 bytes, it will append 1 byte of padding. For SSLv3 padding, this is the smallest amount possible as an 8 byte input will add another block size (8 more bytes) of padded data.
NewL(TInt)
Parameters
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TInt
aBlockBytes
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The block size in bytes.
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NewLC(TInt)
Creates a new
CPaddingPKCS7
object and leaves a pointer to it on the cleanup stack.
Parameters
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TInt
aBlockBytes
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The block size in bytes.
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UnPadL(const TDesC8 &, TDes8 &)
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void
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UnPadL
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(
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const
TDesC8
&
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aInput,
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TDes8
&
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aOutput
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)
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[virtual]
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Removes padding from aInput and appends unpadded result to aOutput.
Parameters
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const
TDesC8
& aInput
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Data to be unpadded.
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TDes8
& aOutput
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On return, the unpadded data.
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operator=(const CPaddingPKCS7 &)
Copyright ©2010 Nokia Corporation and/or its subsidiary(-ies).
All rights
reserved. Unless otherwise stated, these materials are provided under the terms of the Eclipse Public License
v1.0.