Inheritance diagram for BlockOrientedCipherModeBase:
Definition at line 169 of file modes.h.
Public Member Functions | |
void | UncheckedSetKey (const byte *key, unsigned int length, const NameValuePairs ¶ms) |
unsigned int | MandatoryBlockSize () const |
returns block size, if input must be processed in blocks, otherwise 1 | |
bool | IsRandomAccess () const |
returns whether this cipher supports random access | |
bool | IsSelfInverting () const |
returns whether this transformation is self-inverting (e.g. xor with a keystream) | |
bool | IsForwardTransformation () const |
returns whether this is an encryption object | |
void | Resynchronize (const byte *iv) |
resynchronize with an IV | |
void | ProcessData (byte *outString, const byte *inString, size_t length) |
encrypt or decrypt an array of bytes of specified length | |
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 |
returns the smallest valid key length in bytes that is >= min(n, GetMaxKeyLength()) | |
bool | IsValidKeyLength (size_t n) const |
returns whether n is a valid key length | |
unsigned int | OptimalDataAlignment () const |
returns how input should be aligned for optimal performance | |
unsigned int | IVSize () const |
returns size of IVs used by this object | |
void | GetNextIV (byte *IV) |
get a secure IV for the next message | |
virtual IV_Requirement | IVRequirement () const=0 |
returns the minimal requirement for secure IVs | |
Protected Member Functions | |
bool | RequireAlignedInput () const |
virtual void | ProcessBlocks (byte *outString, const byte *inString, size_t numberOfBlocks)=0 |
void | ResizeBuffers () |
unsigned int | BlockSize () const |
virtual void | SetFeedbackSize (unsigned int feedbackSize) |
Protected Attributes | |
SecByteBlock | m_buffer |
BlockCipher * | m_cipher |
SecByteBlock | m_register |
void BlockOrientedCipherModeBase::ProcessData | ( | byte * | outString, | |
const byte * | inString, | |||
size_t | length | |||
) | [virtual] |
encrypt or decrypt an array of bytes of specified length
Implements StreamTransformation.
Definition at line 108 of file modes.cpp.
References CipherModeBase::BlockSize(), m_buffer, CipherModeBase::m_cipher, and RequireAlignedInput().
void CipherModeBase::GetNextIV | ( | byte * | IV | ) | [virtual, inherited] |
get a secure IV for the next message
This method should be called after you finish encrypting one message and are ready to start the next one. After calling it, you must call SetKey() or Resynchronize() before using this object again. This method is not implemented on decryption objects.
Reimplemented from SimpleKeyingInterface.
Definition at line 27 of file modes.cpp.
References CipherModeBase::BlockSize(), StreamTransformation::IsForwardTransformation(), CipherModeBase::m_cipher, and CipherModeBase::m_register.