A system and method for transferring an encrypted file over the Internet
involves a seller, a buyer, and a transaction agent. The file has a first
part (administrative information) and a second part (subject-matter
content) that are respectively encrypted with first and second
encryption/decryption non-public keys. In operation, the appropriate key
is released by the seller or the transaction agent for respective use by
either the transaction agent or the buyer, to decrypt and reveal the
second part of the file to the buyer.
