这个加密和解密安全吗？

Question

我已经构建了Windows应用程序PasswordManager。我正在使用AESManaged加密和解密密码。这有多安全？我尝试实现StringCipher.Encrypt（plainText，password）和StringCipher.Decrypt（encryptedText，password），但无法弄清楚。

任何帮助将不胜感激。

谢谢

public class StringCipher 
    {
        public static string Encrypt(string input)
        {
            return Convert.ToBase64String(Encrypt(Encoding.UTF8.GetBytes(input)));
        }
        public static byte[] Encrypt(byte[] input)
        {
            PasswordDeriveBytes pdb = new PasswordDeriveBytes("hjiweykaksd", new byte[] { 0x43, 0x87, 0x23, 0x72, 0x45, 0x56, 0x68, 0x14, 0x62, 0x84 });
            MemoryStream ms = new MemoryStream();
            Aes aes = new AesManaged();
            aes.Key = pdb.GetBytes(aes.KeySize / 8);
            aes.IV = pdb.GetBytes(aes.BlockSize / 8);
            CryptoStream cs = new CryptoStream(ms, aes.CreateEncryptor(), CryptoStreamMode.Write);
            cs.Write(input, 0, input.Length);
            cs.Close();
            return ms.ToArray();
        }
        public static string Decrypt(string input)
        {
            return Encoding.UTF8.GetString(Decrypt(Convert.FromBase64String(input)));
        }
        public static byte[] Decrypt(byte[] input)
        {
            PasswordDeriveBytes pdb = new PasswordDeriveBytes("hjiweykaksd", new byte[] { 0x43, 0x87, 0x23, 0x72, 0x45, 0x56, 0x68, 0x14, 0x62, 0x84 });
            MemoryStream ms = new MemoryStream();
            Aes aes = new AesManaged();
            aes.Key = pdb.GetBytes(aes.KeySize / 8);
            aes.IV = pdb.GetBytes(aes.BlockSize / 8);
            CryptoStream cs = new CryptoStream(ms, aes.CreateDecryptor(), CryptoStreamMode.Write);
            cs.Write(input, 0, input.Length);
            cs.Close();
            return ms.ToArray();
        }
    }