Rsa verify sign

gistfile1.txt

public static bool VerifySign(string inputText, string signedMessage, string publicKey)
        {
            bool success = false;
            using (var rsa = new RSACryptoServiceProvider())
            {
                byte[] bytesToVerify = Encoding.UTF8.GetBytes(inputText);

                byte[] signedBytes = Convert.FromBase64String(signedMessage);
                try
                {
                    rsa.FromXmlString(publicKey);

                    SHA256Managed Hash = new SHA256Managed();

                    byte[] hashedData = Hash.ComputeHash(signedBytes);

                    success = rsa.VerifyData(bytesToVerify, CryptoConfig.MapNameToOID("SHA256"), signedBytes);
                }
                catch (CryptographicException e)
                {
                    Console.WriteLine(e.Message);
                }
                finally
                {
                    rsa.PersistKeyInCsp = false;
                }
            }
            return success;
        }