conversion

Date:

Jul 5, 2011

Authors:

Gary Belvin

This class facilitates conversion between domain spaces

class conversion.Conversion

Bases: object

The goal is to convert arbitrarily between any of the following types

Input types:

• bytes

• Bytes

• int

• Integer Element

• Modular Integer Element

Output types:

• int

• Group element

• Integer element

• Integer element mod N

classmethod IP2OS(number, xLen=None)

Parameters:

• number: is a normal integer, not modular

• xLen: is the intended length of the resulting octet string

Converts an integer into a byte string

classmethod OS2IP(bytestr, element=False)

Return:

A python int if element is False. An integer.Element if element is True

Converts a byte string to an integer

classmethod bytes2element(bytestr)

Converts a byte string to a group element

classmethod bytes2integer(bytestr)

Converts a bytes string to an integer object

classmethod bytes2str(byteobj)

classmethod int2bin(intobj)

classmethod str2bytes(strobj)