tlslite.utils.cipherfactory module

Factory functions for symmetric cryptography.

tlslite.utils.cipherfactory.createAES(key, IV, implList=None)

Create a new AES object.

Parameters:
  • key (str) – A 16, 24, or 32 byte string.
  • IV (str) – A 16 byte string
Return type:

tlslite.utils.AES
Returns:

An AES object.
tlslite.utils.cipherfactory.createAESGCM(key, implList=None)

Create a new AESGCM object.

Parameters:key (bytearray) – A 16 or 32 byte byte array.
Return type:tlslite.utils.AESGCM
Returns:An AESGCM object.
tlslite.utils.cipherfactory.createCHACHA20(key, implList=None)

Create a new CHACHA20_POLY1305 object.

Parameters:key (bytearray) – a 32 byte array to serve as key
Return type:tlslite.utils.CHACHA20_POLY1305
Returns:A ChaCha20/Poly1305 object
tlslite.utils.cipherfactory.createRC4(key, IV, implList=None)

Create a new RC4 object.

Parameters:
  • key (str) – A 16 to 32 byte string.
  • IV (object) – Ignored, whatever it is.
Return type:

tlslite.utils.RC4
Returns:

An RC4 object.
tlslite.utils.cipherfactory.createTripleDES(key, IV, implList=None)

Create a new 3DES object.

Parameters:
  • key (str) – A 24 byte string.
  • IV (str) – An 8 byte string
Return type:

tlslite.utils.TripleDES
Returns:

A 3DES object.