How to generate SH1 Hash using C#

CSharp · Console

/Program.cs

using System;
using System.Security.Cryptography;
using System.Text;

public class Program
{
	public static void Main()
	{
		//Console.WriteLine("Hello World");
		HashSh1("Technology");
	}

	static string HashSh1(string input)
	{
		using (SHA1Managed sha1 = new SHA1Managed())
		{
			var hashSh1 = sha1.ComputeHash(Encoding.UTF8.GetBytes(input));
			
			// declare stringbuilder
			var sb = new StringBuilder(hashSh1.Length * 2);
			
			// computing hashSh1
			foreach (byte b in hashSh1)
			{
				// "x2"
				sb.Append(b.ToString("X2").ToLower());
			}
			
			// final output
			Console.WriteLine(string.Format("The SHA1 hash of {0} is: {1}",input,sb.ToString()));
			
			return sb.ToString();
		}
	}
}