초록 ▼

A method is disclosed for communicating a key recovery block from a sender to a non-enabled receiver, without the danger of throwing the receiver into an indeterminant state, and without modifying the receiver. The method uses an unmodified communications protocol that has a standard method to recei

A method is disclosed for communicating a key recovery block from a sender to a non-enabled receiver, without the danger of throwing the receiver into an indeterminant state, and without modifying the receiver. The method uses an unmodified communications protocol that has a standard method to receive and acknowledge arbitrary data. The sender sends a message using the standard method for arbitrary data, and includes in the message the key recovery block. The receiver responds with a standard acknowledgment message. The method thereby enables an entity coupled to the link, to monitor the key recovery block, even though the receiver is not enabled to process it.

대표청구항 ▼

[ What is claimed is:] [21.] A article of manufacture for a computer for communicating a key recovery block signal from a sender to a receiver over a communication link, for an entity coupled to the link, to monitor the key recovery block signal, comprising:a computer readable medium;computer progra

[ What is claimed is:] [21.] A article of manufacture for a computer for communicating a key recovery block signal from a sender to a receiver over a communication link, for an entity coupled to the link, to monitor the key recovery block signal, comprising:a computer readable medium;computer program means in said medium or providing an echo request protocol program to the sender;computer program means in said medium for providing an echo reply protocol program to the receiver;computer program means in said medium for sending an echo request message signal with a key recovery block signal from the sender using said echo request protocol over the link to the receiver; andcomputer program means in said medium for sending an echo reply message signal from the receiver using said echo reply protocol in response to the echo request message, over the link to the sender.