Seckey is private and Pubkey is public key. These are keys to communicate with our servers on different access levels. Seckey is the most important one and should never be sent to other peopler. Even though Pubkey is designed to be public, we dont recommend to share this information with anyone else. Generaly never share these keys with anyone else. Keep them in safe place.
Sec/Pubkey is part of your project and they will be stored on your harddisk in XML Format. Never share your project files with other people other than our support team. Whooever gets your project file, may also get access to your project and your client base.