using System;
using System.Collections.Generic;
using System.Text;
using System.Security.Cryptography;
using System.IO;

namespace ChadSoft
{
    /// <summary>
    /// Provides methods for helping with encryption.
    /// </summary>
    public class EncryptionUtility
    {
        /// <summary>
        /// Computes the hash (aka "MD5 Sum") for a given stream.
        /// </summary>
        /// <param name="stream">The stream.</param>
        /// <returns>The MD5 hash for the stream.</returns>
        public static string ComputeHash(Stream stream)
        {
            StringBuilder sb = new StringBuilder();
            foreach (byte byt in MD5.Create().ComputeHash(stream))
                sb.AppendFormat(byt.ToString("x2").ToLower());
            return sb.ToString();
        }

    }
}