How should I store a 256 bit number in C# and perform math operations on it?

Question

I need to store a 256bit number in memory and perform basic math operations on it.

How do I go about doing this in C#? Is there a library I should be using?

[`BigInteger`](http://msdn.microsoft.com/en-us/library/system.numerics.biginteger.aspx)? — Niklas B., Dec 16 '12 at 23:16

score 7 · Accepted Answer · answered Dec 16 '12 at 23:18

7

Would the BigInteger type suit your needs? It

Represents an arbitrarily large signed integer.

And provides the expected arithmetic operations.

answered Dec 16 '12 at 23:18

Grokys

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score 1 · Answer 2 · answered Dec 16 '12 at 23:18

1

BigInteger maybe an option.

If you need just 256 bits and do special hadling of over/underflows - you may have to do it yourself (or find some existing library that is not part of .Net Framework).

answered Dec 16 '12 at 23:18

Alexei Levenkov

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How should I store a 256 bit number in C# and perform math operations on it?

2 Answers2