Converting Plaintext from a text box to SHA1 Then Sha1 to base 64 C#

Question

Ok i want to generate a sha1 hash from plaintext textbox then convert the hash to base64 to store in a mysql database how do i do it?

Answer 1

        string s = "abc";
        byte[] data = Encoding.Unicode.GetBytes(s);
        SHA1 algorithm = SHA1.Create();
        byte[] hash = algorithm.ComputeHash(data);
        string base64 = Convert.ToBase64String(hash);