Crypto++
5.6.4
Free C++ class library of cryptographic schemes
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Interface for the data processing portion of stream ciphers. More...
Public Member Functions | |
StreamTransformation & | Ref () |
Provides a reference to this object. More... | |
virtual unsigned int | MandatoryBlockSize () const |
Provides the mandatory block size of the cipher. More... | |
virtual unsigned int | OptimalBlockSize () const |
Provides the input block size most efficient for this cipher. More... | |
virtual unsigned int | GetOptimalBlockSizeUsed () const |
Provides the number of bytes used in the current block when processing at optimal block size. More... | |
virtual unsigned int | OptimalDataAlignment () const |
Provides input and output data alignment for optimal performance. More... | |
virtual void | ProcessData (byte *outString, const byte *inString, size_t length)=0 |
Encrypt or decrypt an array of bytes. More... | |
virtual void | ProcessLastBlock (byte *outString, const byte *inString, size_t length) |
Encrypt or decrypt the last block of data. More... | |
virtual unsigned int | MinLastBlockSize () const |
returns the minimum size of the last block, 0 indicating the last block is not special | |
void | ProcessString (byte *inoutString, size_t length) |
Encrypt or decrypt a string of bytes. More... | |
void | ProcessString (byte *outString, const byte *inString, size_t length) |
Encrypt or decrypt a string of bytes. More... | |
byte | ProcessByte (byte input) |
Encrypt or decrypt a byte. More... | |
virtual bool | IsRandomAccess () const =0 |
Determines whether the cipher supports random access. More... | |
virtual void | Seek (lword pos) |
Seek to an absolute position. More... | |
virtual bool | IsSelfInverting () const =0 |
Determines whether the cipher is self-inverting. More... | |
virtual bool | IsForwardTransformation () const =0 |
Determines if the cipher is being operated in its forward direction. More... | |
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Algorithm (bool checkSelfTestStatus=true) | |
Interface for all crypto algorithms. More... | |
virtual std::string | AlgorithmName () const |
Provides the name of this algorithm. More... | |
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virtual Clonable * | Clone () const |
Copies this object. More... | |
Interface for the data processing portion of stream ciphers.
Definition at line 816 of file cryptlib.h.
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inline |
Provides a reference to this object.
Definition at line 826 of file cryptlib.h.
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inlinevirtual |
Provides the mandatory block size of the cipher.
Reimplemented in BlockOrientedCipherModeBase.
Definition at line 830 of file cryptlib.h.
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inlinevirtual |
Provides the input block size most efficient for this cipher.
n * OptimalBlockSize() - GetOptimalBlockSizeUsed()
for any n > 0
. Reimplemented in AdditiveCipherTemplate< BASE >, and ECB_OneWay.
Definition at line 837 of file cryptlib.h.
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inlinevirtual |
Provides the number of bytes used in the current block when processing at optimal block size.
Definition at line 841 of file cryptlib.h.
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virtual |
Provides input and output data alignment for optimal performance.
Reimplemented in AdditiveCipherTemplate< BASE >, CipherModeBase, GCM_Base, EAX_Base, and CCM_Base.
Definition at line 238 of file cryptlib.cpp.
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pure virtual |
Encrypt or decrypt an array of bytes.
outString | the output byte buffer |
inString | the input byte buffer |
length | the size of the input and output byte buffers, in bytes Either inString == outString , or they must not overlap. |
Implemented in CFB_CipherTemplate< AbstractPolicyHolder< CFB_CipherAbstractPolicy, SymmetricCipher > >, AdditiveCipherTemplate< BASE >, AdditiveCipherTemplate< AbstractPolicyHolder< AdditiveCipherAbstractPolicy, CTR_ModePolicy > >, CBC_Decryption, CBC_Encryption, ECB_OneWay, PublicBlumBlumShub, AuthenticatedSymmetricCipherBase, and Weak::ARC4_Base.
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virtual |
Encrypt or decrypt the last block of data.
outString | the output byte buffer |
inString | the input byte buffer |
length | the size of the input and output byte buffers, in bytes ProcessLastBlock is used when the last block of data is special. Currently the only use of this function is CBC-CTS mode. |
Reimplemented in CBC_CTS_Decryption, and CBC_CTS_Encryption.
Definition at line 248 of file cryptlib.cpp.
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inline |
Encrypt or decrypt a string of bytes.
inoutString | the string to process |
length | the size of the inoutString, in bytes Internally, the base class implementation calls ProcessData(). |
Definition at line 869 of file cryptlib.h.
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inline |
Encrypt or decrypt a string of bytes.
outString | the output string to process |
inString | the input string to process |
length | the size of the input and output strings, in bytes Internally, the base class implementation calls ProcessData(). |
Definition at line 877 of file cryptlib.h.
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inline |
Encrypt or decrypt a byte.
input | the input byte to process Internally, the base class implementation calls ProcessData() with a size of 1. |
Definition at line 883 of file cryptlib.h.
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pure virtual |
Determines whether the cipher supports random access.
Implemented in AdditiveCipherTemplate< BASE >, BlockOrientedCipherModeBase, BlumBlumShub, AuthenticatedSymmetricCipherBase, and Weak::ARC4_Base.
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inlinevirtual |
Seek to an absolute position.
pos | position to seek |
NotImplemented | The base class implementation throws NotImplemented. The function asserts IsRandomAccess() in debug builds. |
Reimplemented in AdditiveCipherTemplate< BASE >, AdditiveCipherTemplate< AbstractPolicyHolder< AdditiveCipherAbstractPolicy, CTR_ModePolicy > >, and BlumBlumShub.
Definition at line 895 of file cryptlib.h.
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pure virtual |
Determines whether the cipher is self-inverting.
Implemented in AdditiveCipherTemplate< BASE >, BlockOrientedCipherModeBase, PublicBlumBlumShub, AuthenticatedSymmetricCipherBase, and Weak::ARC4_Base.
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pure virtual |
Determines if the cipher is being operated in its forward direction.
Implemented in AdditiveCipherTemplate< BASE >, BlockOrientedCipherModeBase, GCM_Final< T_BlockCipher, T_TablesOption, T_IsEncryption >, EAX_Final< T_BlockCipher, T_IsEncryption >, CCM_Final< T_BlockCipher, T_DefaultDigestSize, T_IsEncryption >, PublicBlumBlumShub, and Weak::ARC4_Base.