mda5-sha

MD5 and SHA in C#
Wrapper class for MD5 and SHA encryption methods.

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MD5 and SHA in C#

A simple class from 2004 for performing MD5 (128bit) or SHA (256bit,384bit and 512bit) hash encryption on a string.

public class HashEncryption
{
	/// <summary>
	/// Encrypts a string using the MD5 hash encryption algorithm.
	/// Message Digest is 128-bit and is commonly used to verify data, by checking
	/// the 'MD5 checksum' of the data. Information on MD5 can be found at:
	/// 
	/// http://www.faqs.org/rfcs/rfc1321.html
	/// </summary>
	/// <param name="Data">A string containing the data to encrypt.</param>
	/// <returns>A string containing the string, encrypted with the MD5 hash.</returns>
	public static string MD5Hash(string Data)
	{
		MD5 md5 = new MD5CryptoServiceProvider();
		byte[] hash = md5.ComputeHash( Encoding.ASCII.GetBytes(Data) );

StringBuilder stringBuilder = new StringBuilder();
		foreach( byte b in hash ) 
		{
			stringBuilder.AppendFormat("{0:x2}", b);
		}
		return stringBuilder.ToString();
	}

/// <summary>
	/// Encrypts a string using the SHA256 (Secure Hash Algorithm) algorithm.
	/// Details: http://www.itl.nist.gov/fipspubs/fip180-1.htm
	/// This works in the same manner as MD5, providing however 256bit encryption.
	/// </summary>
	/// <param name="Data">A string containing the data to encrypt.</param>
	/// <returns>A string containing the string, encrypted with the SHA256 algorithm.</returns>
	public static string SHA256Hash(string Data)
	{
		SHA256 sha = new SHA256Managed();
		byte[] hash = sha.ComputeHash( Encoding.ASCII.GetBytes(Data) );

StringBuilder stringBuilder = new StringBuilder();
		foreach( byte b in hash ) 
		{
			stringBuilder.AppendFormat("{0:x2}", b);
		}
		return stringBuilder.ToString();
	}

/// <summary>
	/// Encrypts a string using the SHA384(Secure Hash Algorithm) algorithm.
	/// This works in the same manner as MD5, providing 384bit encryption.
	/// </summary>
	/// <param name="Data">A string containing the data to encrypt.</param>
	/// <returns>A string containing the string, encrypted with the SHA384 algorithm.</returns>
	public static string SHA384Hash(string Data)
	{
		SHA384 sha = new SHA384Managed();
		byte[] hash = sha.ComputeHash( Encoding.ASCII.GetBytes(Data) );

StringBuilder stringBuilder = new StringBuilder();
		foreach( byte b in hash ) 
		{
			stringBuilder.AppendFormat("{0:x2}", b);
		}
		return stringBuilder.ToString();
	}

/// <summary>
	/// Encrypts a string using the SHA512 (Secure Hash Algorithm) algorithm.
	/// This works in the same manner as MD5, providing 512bit encryption.
	/// </summary>
	/// <param name="Data">A string containing the data to encrypt.</param>
	/// <returns>A string containing the string, encrypted with the SHA512 algorithm.</returns>
	public static string SHA512Hash(string Data)
	{
		SHA512 sha = new SHA512Managed();
		byte[] hash = sha.ComputeHash( Encoding.ASCII.GetBytes(Data) );

StringBuilder stringBuilder = new StringBuilder();
		foreach( byte b in hash ) 
		{
			stringBuilder.AppendFormat("{0:x2}", b);
		}
		return stringBuilder.ToString();
	}
}

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