Cross enterprise communication

摘要

Method and system for cross enterprise communication are provided in which intermediary communication components carry out cross enterprise communication. A method at a first sending enterprise, includes: receiving a signed encrypted message from a sender within a first enterprise; validating the sender; decrypting the message; encrypting the message for receipt by a second enterprise; signing the encrypted message by the first enterprise; and sending the re-signed re-encrypted message to a second enterprise. The method a second receiving enterprise, includes: receiving a signed encrypted message from a first enterprise; validating the sender as the first enterprise; decrypting the message; encrypting the message for receipt by one or more recipients at the second enterprise; signing the encrypted message by the second enterprise indicating that it is from the first enterprise; and sending the re- signed re-encrypted message to the one or more recipients.