This tutorial will show you how to use the ComputeHash function in C#.NET.

You can see, You can find the ComputeHash method in the classes: SHA1CryptoServiceProvider, SHA1Managed, SHA256Managed, SHA384Managed, SHA512Managed, MD5CryptoServiceProvider, SHA1, SHA256, SHA384, SHA512, MD5.

For example hash a string using MD5 encryption

public string MD5(string value)
    MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();
    byte[] original = ASCIIEncoding.Default.GetBytes(value);
    byte[] encoded = md5.ComputeHash(original);
    return BitConverter.ToString(encoded).Replace("-", "");

The ComputeHash method which takes an array of bytes and returns the hash value in an array of bytes.