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

Question

好吧，我想从纯文本框中生成一个sha1哈希，然后将哈希转换为base64以存储在mysql数据库中，我该怎么做？

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);