using System;
using System.Globalization;
using System.Security.Cryptography;
using System.Text;
 
public class Test
{
	public static void Main()
	{
		string key = "àéèìòù";
 
		StringBuilder sb;
		using (var sha1 = new SHA1Managed())
		{
		    var hash = sha1.ComputeHash(Encoding.UTF8.GetBytes(key));
		    sb = new StringBuilder(hash.Length * 2);
		    foreach (byte b in hash)
		     {
		         sb.Append(b.ToString("x2"));
		     }
		 }
 
		 Console.WriteLine(sb);
	 }
}

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