Hash SHA - CSharp System.Security.Cryptography

CSharp examples for System.Security.Cryptography:SHA1

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Description

Hash SHA

Demo Code

/*//w  w w  . ja va  2  s . co  m
Commerce Starter Kit for EPiServer

All rights reserved. See LICENSE.txt in project root.

Copyright (C) 2013-2014 Oxx AS
Copyright (C) 2013-2014 BV Network AS

*/
using System.Text;
using System.Security.Cryptography;
using System.Linq;
using System.Globalization;
using System.Collections.Generic;
using System;

public class Main{
        private static byte[] HashSHA(byte[] innerKey, byte[] outerKey, byte[] message)
        {
            var hash = new SHA256Managed();

            // Compute the hash for the inner data first
            byte[] innerData = new byte[innerKey.Length + message.Length];
            Buffer.BlockCopy(innerKey, 0, innerData, 0, innerKey.Length);
            Buffer.BlockCopy(message, 0, innerData, innerKey.Length, message.Length);
            byte[] innerHash = hash.ComputeHash(innerData);

            // Compute the entire hash
            byte[] data = new byte[outerKey.Length + innerHash.Length];
            Buffer.BlockCopy(outerKey, 0, data, 0, outerKey.Length);
            Buffer.BlockCopy(innerHash, 0, data, outerKey.Length, innerHash.Length);
            byte[] result = hash.ComputeHash(data);

            return result;
        }
}

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