Csharp/CSharp Tutorial/Security/SHA1Managed

Generate the hash code of the file"s contents

using System;
using System.IO;
using System.Security.Cryptography;
class MainClass
{
    public static void Main(string[] args)
    {
        using (HashAlgorithm hashAlg = new SHA1Managed())
        {
            using (Stream file = new FileStream("C:\\test.txt", FileMode.Open, FileAccess.Read))
            {
                byte[] hash = hashAlg.ruputeHash(file);
                // Display the hash code of the file to the console.
                Console.WriteLine(BitConverter.ToString(hash));
            }
        }
    }
}

Generate the hash code of the password

using System;
using System.Text;
using System.Security.Cryptography;
class MainClass
{
    public static void Main(string[] args)
    {
        HashAlgorithm hashAlg = new SHA1Managed();
        using (hashAlg)
        {
            byte[] pwordData = Encoding.Default.GetBytes("password");
            byte[] hash = hashAlg.ruputeHash(pwordData);
            Console.WriteLine(BitConverter.ToString(hash));
        }
    }
}

5B-AA-61-E4-C9-B9-3F-3F-06-82-25-0B-6C-F8-33-1B-7E-E6-8F-D8

Produce a SHA1 hash

using System;
using System.Security.Cryptography;
  class Class1
  {
    static void Main(string[] args)
    {
      string dataToHash = "this is a test";
      string key = "ABCDEFGHIJKLMNOPQRSTUVWX";
      byte[] dataToHash_Bytes = System.Text.Encoding.Unicode.GetBytes( dataToHash );
      byte[] key_Bytes = System.Text.Encoding.ASCII.GetBytes( key );
      MACTripleDES mac = new MACTripleDES( key_Bytes );
      
      byte[] result_Bytes = mac.ruputeHash( dataToHash_Bytes );
      Console.WriteLine( System.Text.Encoding.ASCII.GetString( result_Bytes ));
      SHA1Managed sha1 = new SHA1Managed();
      byte[] sha1_Bytes = sha1.ruputeHash( dataToHash_Bytes);
      Console.WriteLine( System.Text.Encoding.ASCII.GetString( sha1_Bytes ));
    }
  }