Patent ID: 7016499
Filing Date: 2006-03-21
Classification: H04L

Abstract:
1. A method for performing secure ephemeral communication comprising: receiving, at a first node, a triply wrapped value, said value being encrypted with a first encryption key, having an associated first decryption key, to form a singly wrapped value, said singly wrapped value being encrypted with a second encryption key to form a doubly wrapped value and said doubly wrapped value being encrypted with a third encryption key to form said triply wrapped value; decrypting said triply wrapped value using a third decryption key associated with said third encryption key to obtain said doubly wrapped value; securely communicating said doubly wrapped value to said second node from the first node; obtaining a second decryption key having a predetermined expiration time at the second node; determining if said second decryption key has expired; decrypting said doubly wrapped value using said second decryption key to produce said singly wrapped value if it has been determined that said second decryption key has not expired; and securely communicating said singly wrapped value from the second node to the first node, wherein the first and third encryption keys are the same and the first and third decryption keys are the same and the first and third encryption and decryption keys are associated with the first node.