Crypto++ 8.1 Free C++ class library of cryptographic schemes

Public Member Functions | Static Public Member Functions | List of all members
ECB_OneWay Class Reference

ECB block cipher mode of operation default implementation. More...

Inheritance diagram for ECB_OneWay:

## Public Member Functions
void | SetKey (const byte *key, size_t length, const NameValuePairs &params=g_nullNameValuePairs)
| Sets or reset the key of this object. More...
IV_Requirement | IVRequirement () const
| Minimal requirement for secure IVs. More...
unsigned int | OptimalBlockSize () const
| Provides the input block size most efficient for this cipher. More...
void | ProcessData (byte *outString, const byte *inString, size_t length)
| Encrypt or decrypt an array of bytes. More...
Public Member Functions inherited from BlockOrientedCipherModeBase
void | UncheckedSetKey (const byte *key, unsigned int length, const NameValuePairs &params)
| Sets the key for this object without performing parameter validation. More...
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...
Public Member Functions inherited from CipherModeBase
std::string | AlgorithmProvider () const
| Retrieve the provider of this algorithm. More...
size_t | MinKeyLength () const
| Returns smallest valid key length. More...
size_t | MaxKeyLength () const
| Returns largest valid key length. More...
size_t | DefaultKeyLength () const
| Returns default key length. More...
size_t | GetValidKeyLength (size_t keylength) const
| Returns a valid key length for the algorithm. More...
bool | IsValidKeyLength (size_t keylength) 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)
| Set external block cipher. More...
void | SetCipherWithIV (BlockCipher &cipher, const byte *iv, int feedbackSize=0)
| Set external block cipher and IV. More...
Public Member Functions inherited from SimpleKeyingInterface
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...
Public Member Functions inherited from StreamTransformation
StreamTransformation & | Ref ()
| Provides a reference to this object. More...
virtual unsigned int | GetOptimalBlockSizeUsed () const
| Provides the number of bytes used in the current block when processing at optimal block size. More...
virtual size_t | ProcessLastBlock (byte *outString, size_t outLength, const byte *inString, size_t inLength)
| Encrypt or decrypt the last block of data. More...
virtual unsigned int | MinLastBlockSize () const
| Provides the size of the last block. More...
virtual bool | IsLastBlockSpecial () const
| Determines if the last block receives special processing. 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...
Public Member Functions inherited from Algorithm
| Algorithm (bool checkSelfTestStatus=true)
| Interface for all crypto algorithms. More...
virtual std::string | AlgorithmName () const
| Provides the name of this algorithm. More...
Public Member Functions inherited from Clonable
virtual Clonable * | Clone () const
| Copies this object. More...

## Static Public Member Functions
static const char * | StaticAlgorithmName ()

## Additional Inherited Members
Public Types inherited from SimpleKeyingInterface
enum | IV_Requirement { UNIQUE_IV = 0, RANDOM_IV, UNPREDICTABLE_RANDOM_IV, INTERNALLY_GENERATED_IV, NOT_RESYNCHRONIZABLE }
| Secure IVs requirements as enumerated values. More...

## Detailed Description

ECB block cipher mode of operation default implementation.

Definition at line 269 of file modes.h.

## Member Function Documentation

## ◆ SetKey()

void ECB_OneWay::SetKey | ( | const byte * | key,
|  | size_t | length,
|  | const NameValuePairs & | params = `g_nullNameValuePairs`
| ) |  |
| inline virtual

Sets or reset the key of this object.

Parameters

  key | the key to use when keying the object
  length | the size of the key, in bytes
  params | additional initialization parameters to configure this object

Reimplemented from SimpleKeyingInterface.

Definition at line 274 of file modes.h.

## ◆ IVRequirement()

IV_Requirement ECB_OneWay::IVRequirement | ( |  | ) | const
| inline virtual

Minimal requirement for secure IVs.

Returns
  the secure IV requirement of the algorithm

Implements CipherModeBase.

Definition at line 276 of file modes.h.

## ◆ OptimalBlockSize()

unsigned int ECB_OneWay::OptimalBlockSize | ( |  | ) | const
| inline virtual

Provides the input block size most efficient for this cipher.

Returns
  The input block size that is most efficient for the cipher

The base class implementation returns MandatoryBlockSize().

Note
  Optimal input length is `n * OptimalBlockSize() - GetOptimalBlockSizeUsed()` for any `n > 0`.

Reimplemented from StreamTransformation.

Definition at line 277 of file modes.h.

## ◆ ProcessData()

void ECB_OneWay::ProcessData | ( | byte * | outString,
|  | const byte * | inString,
|  | size_t | length
| ) |  |
| virtual

Encrypt or decrypt an array of bytes.

Parameters

  outString | the output byte buffer
  inString | the input byte buffer
  length | the size of the input and output byte buffers, in bytes

ProcessData is called with a string of bytes whose size depends on MandatoryBlockSize. Either `inString == outString`, or they must not overlap.

See also
  ProcessData, ProcessLastBlock, MandatoryBlockSize, MinLastBlockSize, BlockPaddingSchemeDef, IsLastBlockSpecial

Implements StreamTransformation.

Definition at line 191 of file modes.cpp.

The documentation for this class was generated from the following files:

- modes.h
- modes.cpp