Inheritance diagram for CipherModeBase:
Definition at line 31 of file modes.h.
Public Member Functions | |
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 | |
unsigned int | BlockSize () const |
virtual void | SetFeedbackSize (unsigned int feedbackSize) |
virtual void | ResizeBuffers () |
Protected Attributes | |
BlockCipher * | m_cipher |
SecByteBlock | m_register |
void CipherModeBase::GetNextIV | ( | byte * | IV | ) | [virtual] |
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 BlockSize(), StreamTransformation::IsForwardTransformation(), m_cipher, and m_register.