FTP via Internet uses TCP/IP FTP, a standard product used for file transfer found in all UNIX systems. It can be used to transfer data from most PCs to IBM mainframe computers.
Connection to Bankgirot is via a VPN tunnel over the Internet.
VPN is a method used for creating secure data communication over a non-secure (often public) network, such as the Internet. A secure channel, or "tunnel", is created between two nodes by means of encryption. All traffic between the two nodes is passed through this channel before being released at the other end. This means that no one other than those individuals sitting at either of the two ends is able to access files or data, even though these are being transferred via the Internet.
The software used to set up the tunnel must be secure at all levels to ensure that the node at the other end can be identified with confidence. For VPN, this means first identifying a node or a computer, unlike, say, BgCom or Bankgiro Link, where a user - an individual - is identified.
The payment file is created in the agreed format for Bankgiro services. The file is protected against tampering and is sent in accordance with the instructions which can be found in the Guidelines for Suppliers for this method of communication.
Anti-tampering protection
For security reasons, all files containing payment orders which are sent to BGC must be equipped with electronic anti-tampering protection – also called an electronic seal. The approved method is Nexus Electronic Signature.