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Skinny128_256_Tweaked Class Reference

SKINNY block cipher with a 128-bit block, a 128-bit key, and a 128-bit tweak. More...

#include <Skinny128.h>

Inheritance diagram for Skinny128_256_Tweaked:
Skinny128_Tweaked Skinny128 BlockCipher

Public Member Functions

 Skinny128_256_Tweaked ()
 Constructs a tweakable Skinny-128 block cipher with a 128-bit key and a 128-bit tweak.
 
virtual ~Skinny128_256_Tweaked ()
 Destroys this tweakable Skinny-128 block cipher object after clearing sensitive information.
 
size_t keySize () const
 Size of a Skinny128_256_Tweaked key in bytes. More...
 
bool setKey (const uint8_t *key, size_t len)
 Sets the key to use for future encryption and decryption operations. More...
 
- Public Member Functions inherited from Skinny128_Tweaked
virtual ~Skinny128_Tweaked ()
 Destroys this tweakable Skinny-128 block cipher object after clearing sensitive information.
 
bool setTweak (const uint8_t *tweak, size_t len)
 Sets the 128-bit tweak value for this block cipher. More...
 
void clear ()
 Clears all security-sensitive state from this block cipher. More...
 
- Public Member Functions inherited from Skinny128
virtual ~Skinny128 ()
 Destroys this Skinny-128 block cipher object after clearing sensitive information.
 
size_t blockSize () const
 Size of a Skinny-128 block in bytes. More...
 
void encryptBlock (uint8_t *output, const uint8_t *input)
 Encrypts a single block using this cipher. More...
 
void decryptBlock (uint8_t *output, const uint8_t *input)
 Decrypts a single block using this cipher. More...
 
- Public Member Functions inherited from BlockCipher
 BlockCipher ()
 Constructs a block cipher.
 
virtual ~BlockCipher ()
 Destroys this block cipher object. More...
 

Additional Inherited Members

- Protected Member Functions inherited from Skinny128_Tweaked
 Skinny128_Tweaked (uint32_t *schedule, uint8_t rounds)
 Constructs a tweakable Skinny-128 block cipher object. More...
 
void resetTweak ()
 Resets the tweak to all-zeroes. More...
 
- Protected Member Functions inherited from Skinny128
 Skinny128 (uint32_t *schedule, uint8_t rounds)
 Constructs a Skinny-128 block cipher object. More...
 
void setTK1 (const uint8_t *key, bool tweaked=false)
 Clears the key schedule and sets it to the schedule for TK1. More...
 
void xorTK1 (const uint8_t *key)
 XOR's the key schedule with the schedule for TK1. More...
 
void setTK2 (const uint8_t *key)
 XOR's the key schedule with the schedule for TK2. More...
 
void setTK3 (const uint8_t *key)
 XOR's the key schedule with the schedule for TK3. More...
 

Detailed Description

SKINNY block cipher with a 128-bit block, a 128-bit key, and a 128-bit tweak.

See Also
Skinny128_256, Skinny128_Tweaked, Skinny128_384_Tweaked

Definition at line 99 of file Skinny128.h.

Member Function Documentation

size_t Skinny128_256_Tweaked::keySize ( ) const
virtual

Size of a Skinny128_256_Tweaked key in bytes.

Returns
Always returns 16.

Implements BlockCipher.

Definition at line 1382 of file Skinny128.cpp.

bool Skinny128_256_Tweaked::setKey ( const uint8_t *  key,
size_t  len 
)
virtual

Sets the key to use for future encryption and decryption operations.

Parameters
keyThe key to use.
lenThe length of the key.
Returns
Returns false if the key length is not supported, or the key is somehow "weak" and unusable by this cipher.

Use clear() or the destructor to remove the key and any other sensitive data from the object once encryption or decryption is complete.

See Also
keySize(), clear()

Implements BlockCipher.

Definition at line 1387 of file Skinny128.cpp.


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