Packet authentication and packet encryption/decryption scheme for security gateway
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 18, 2000
Grant Date -
N/A
app pub date -
Nov 29, 1996
filing date -
Nov 30, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A packet authentication and packet encryption/decryption scheme for a security gateway suitable for a hierarchically organized network system and a mobile computing environment. For the packet authentication, in addition to the end-to-end authentication at the destination side packet processing device, the link-by-link authentication at each intermediate packet processing device in the packet transfer route is used. The link-to-link authentication data being inspected by intermediate nodes and end-to-end data (different from link-to-link data) being inspected by destination node but not being inspected by intermediate nodes. For the packet encryption/decryption, each packet processing device determines whether or not to encrypt/decrypt the packet according to: an information on the computers which are directly managed by this packet processing device; or the encryption information and the signature information provided in the packet; or the encryption information, the signature information, and the encryption/decryption level information provided in the packer.
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