BigMath

S# class library for computations with big numbers such as Int128, Int256 and BigInteger. There is also ExtendedBitConverter which allows to convert regular and big numbers to/from array of bytes, with possibility of explicit setting of bytes order Big-endian/Little-endian.

Some parts of the code is based on:

1. Original sources from https://github.com/everbytes/BigMath and http://int128.codeplex.com/. Thanks to Simon Mourier.
2. BigInteger from the Bouncy Castle.