Example SHA256 hash in C#

Here is short code snippet to create a SHA256 hash in C#. The only difficult is to convert from string to byte array and back again. So i have to method, one accept the byte array direct and returns a byte array, the second method handles the convert from string to byte array and back again. Don’t forget to add the required using:

using System.Security.Cryptography;

And here is the function:

        public static string GetSha256(string text)
            if (text == null)
                return string.Empty;

            byte[] message = System.Text.Encoding.ASCII.GetBytes(text);
            byte[] hashValue = GetSha256(message);

            string hashString = string.Empty;
            foreach (byte x in hashValue)
                hashString += string.Format("{0:x2}", x);

            return hashString;


        private static byte[] GetSha256(byte[] message)
            SHA256Managed hashString = new SHA256Managed();
            return hashString.ComputeHash(message);


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