Abstract: A method and system for selectively interconnecting a plurality of computers (112,114) over an open public network (120,102,122), such as the INTERNET, provides a private secure computer exchange of EDI interchange communications between a sender computer (112) and a recipient computer (114), each of which has an associated public key and an associated private key, such as in an RSA type cryptographic communication system (100). The associated EDI acknowledgement message, such as the AUTACK, is used to provide secure authentication and non-repudiation of both origin and receipt of the secure private EDI interchange communications transmitted over the open public network (120,102,122) with the AUTACK transmitted from the sender computer (112) being digitally signed with the sender's private key, and with the reply AUTACK transmitted from the recipient computer (114) being digitally signed with the recipient's private key.

Abstract: A language-based electronic data interchange ("EDI") translation system provides the capability to receive data in a first format from a source, execute a script to translate the data into a second format, and transmit the data in the second format to a destination. The system employs a data tree structure to enable flexible translation between EDI documents and application documents with differing data structures.