Method for utilizing an encrypted key as a key identifier in a data packet in a computer network
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United States of America Patent
Stats
-
Jan 14, 1992
Grant Date -
N/A
app pub date -
Jun 28, 1989
filing date -
Jun 28, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The nodes in a computer network utilize an encrypted key as a key identifier in a data packets transferred between nodes which eliminates the need for a receiving node to perform a memory look up operation to ascertain the key used to encrypt the data. Each node is provided with a master key that is unique to each node. When two nodes want to establish communications they first negotiate a shared key. This shared key is then encrypted under each nodes' master key. The nodes then exchange their respective encrypted key. The encrypted key of the receiving node is placed in the data packet to be sent by the transmitting node. Upon receiving a data packet, the receiving node decrypts the encrypted key to determine the shared key. This shared key is then used to decrypt encrypted data in the data packet.
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