.net如何创建SHA1哈希？

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

namespace SHA1Example
{
    class Program
    {
        static void Main(string[] args)
        {
            string input = "Hello, world!";
            byte[] inputBytes = Encoding.UTF8.GetBytes(input);

            using (SHA1 sha1 = SHA1.Create())
            {
                byte[] hashBytes = sha1.ComputeHash(inputBytes);
                string hash = Convert.ToBase64String(hashBytes);

                Console.WriteLine($"SHA1 hash of '{input}' is: {hash}");
            }
        }
    }
}