TNL::SymmetricCipher class Reference

TNL::SymmetricCipher Class Reference

#include <tnlSymmetricCipher.h>

Inheritance diagram for TNL::SymmetricCipher:

Detailed Description

Class for symmetric encryption of data across a connection.

Internally it uses the libtomcrypt AES algorithm to encrypt the data.

Public Types

enum {
BlockSize = 16,
KeySize = 16
}

Public Member Functions

SymmetricCipher (const U8 symmetricKey[KeySize], const U8 initVector[BlockSize])

SymmetricCipher (const ByteBuffer *theByteBuffer)

void setupCounter (U32 counterValue1, U32 counterValue2, U32 counterValue3, U32 counterValue4)

void encrypt (const U8 *plainText, U8 *cipherText, U32 len)

void decrypt (const U8 *cipherText, U8 *plainText, U32 len)

Private Attributes

U32 mCounter [BlockSize >> 2]

U32 mInitVector [BlockSize]

U8 mPad [BlockSize]

Key mSymmetricKey

U32 mPadLen

anonymous enum

Enumeration values:

BlockSize

KeySize

TNL::SymmetricCipher::SymmetricCipher ( const U8 symmetricKey[KeySize],

const U8 initVector[BlockSize]

)

TNL::SymmetricCipher::SymmetricCipher ( const ByteBuffer * theByteBuffer )

void TNL::SymmetricCipher::setupCounter ( U32 counterValue1,

U32 counterValue2,

U32 counterValue3,

U32 counterValue4

)

void TNL::SymmetricCipher::encrypt ( const U8 * plainText,

U8 * cipherText,

U32 len

)

void TNL::SymmetricCipher::decrypt ( const U8 * cipherText,

U8 * plainText,

U32 len

)


Public Types
enum	{ BlockSize = 16, KeySize = 16 }
Public Member Functions
	SymmetricCipher (const U8 symmetricKey[KeySize], const U8 initVector[BlockSize])
	SymmetricCipher (const ByteBuffer *theByteBuffer)
void	setupCounter (U32 counterValue1, U32 counterValue2, U32 counterValue3, U32 counterValue4)
void	encrypt (const U8 plainText, U8 cipherText, U32 len)
void	decrypt (const U8 cipherText, U8 plainText, U32 len)
Private Attributes
U32	mCounter [BlockSize >> 2]
U32	mInitVector [BlockSize]
U8	mPad [BlockSize]
Key	mSymmetricKey
U32	mPadLen