Crypto++
5.6.5
Free C++ class library of cryptographic schemes
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CBC-CTS block cipher mode of operation encryption operation. More...
Public Member Functions | |
void | SetStolenIV (byte *iv) |
unsigned int | MinLastBlockSize () const |
Provides the size of the last block. More... | |
void | ProcessLastBlock (byte *outString, const byte *inString, size_t length) |
Encrypt or decrypt the last block of data. More... | |
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void | ProcessData (byte *outString, const byte *inString, size_t length) |
Encrypt or decrypt an array of bytes. More... | |
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IV_Requirement | IVRequirement () const |
Minimal requirement for secure IVs. More... | |
bool | RequireAlignedInput () const |
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unsigned int | MandatoryBlockSize () const |
Provides the mandatory block size of the cipher. More... | |
bool | IsRandomAccess () const |
Determines whether the cipher supports random access. More... | |
bool | IsSelfInverting () const |
Determines whether the cipher is self-inverting. More... | |
bool | IsForwardTransformation () const |
Determines if the cipher is being operated in its forward direction. More... | |
void | Resynchronize (const byte *iv, int length=-1) |
Resynchronize with an IV. More... | |
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size_t | MinKeyLength () const |
Returns smallest valid key length in bytes. | |
size_t | MaxKeyLength () const |
Returns largest valid key length in bytes. | |
size_t | DefaultKeyLength () const |
Returns default (recommended) key length in bytes. | |
size_t | GetValidKeyLength (size_t n) const |
bool | IsValidKeyLength (size_t n) const |
Returns whether keylength is a valid key length. More... | |
unsigned int | OptimalDataAlignment () const |
Provides input and output data alignment for optimal performance. More... | |
unsigned int | IVSize () const |
Returns length of the IV accepted by this object. More... | |
void | SetCipher (BlockCipher &cipher) |
void | SetCipherWithIV (BlockCipher &cipher, const byte *iv, int feedbackSize=0) |
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virtual void | SetKey (const byte *key, size_t length, const NameValuePairs ¶ms=g_nullNameValuePairs) |
Sets or reset the key of this object. More... | |
void | SetKeyWithRounds (const byte *key, size_t length, int rounds) |
Sets or reset the key of this object. More... | |
void | SetKeyWithIV (const byte *key, size_t length, const byte *iv, size_t ivLength) |
Sets or reset the key of this object. More... | |
void | SetKeyWithIV (const byte *key, size_t length, const byte *iv) |
Sets or reset the key of this object. More... | |
bool | IsResynchronizable () const |
Determines if the object can be resynchronized. More... | |
bool | CanUseRandomIVs () const |
Determines if the object can use random IVs. More... | |
bool | CanUsePredictableIVs () const |
Determines if the object can use random but possibly predictable IVs. More... | |
bool | CanUseStructuredIVs () const |
Determines if the object can use structured IVs. More... | |
unsigned int | DefaultIVLength () const |
Provides the default size of an IV. More... | |
virtual unsigned int | MinIVLength () const |
Provides the minimum size of an IV. More... | |
virtual unsigned int | MaxIVLength () const |
Provides the maximum size of an IV. More... | |
virtual void | GetNextIV (RandomNumberGenerator &rng, byte *iv) |
Retrieves a secure IV for the next message. More... | |
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StreamTransformation & | Ref () |
Provides a reference to this object. 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... | |
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 void | Seek (lword pos) |
Seek to an absolute position. 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... | |
Static Public Member Functions | |
static const char * | StaticAlgorithmName () |
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static const char * | StaticAlgorithmName () |
Additional Inherited Members | |
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enum | IV_Requirement { UNIQUE_IV = 0, RANDOM_IV, UNPREDICTABLE_RANDOM_IV, INTERNALLY_GENERATED_IV, NOT_RESYNCHRONIZABLE } |
Secure IVs requirements as enumerated values. More... | |
CBC-CTS block cipher mode of operation encryption operation.
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inlinevirtual |
Provides the size of the last block.
MinLastBlockSize() returns the minimum size of the last block. 0 indicates the last block is not special.
Reimplemented from CBC_ModeBase.
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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 from StreamTransformation.