Base64 Encode & Decode

/// <summary>
/// Base64 Encode
/// </summary>
/// <param name="strText"></param>
/// <returns></returns>
public string GetBase64Encode(string strText)
{
 byte[] encData = System.Text.Encoding.UTF8.GetBytes(strText);
 return Convert.ToBase64String(encData);
}

/// <summary>
/// Base64 Decode
/// </summary>
/// <param name="strText"></param>
/// <returns></returns>
public string GetBase64Decode(string strText)
{
 byte[] decData = Convert.FromBase64String(strText);
 return System.Text.Encoding.UTF8.GetString(decData);
}