Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular node for directing data and applying cryptography
Reexamination Certificate
2011-07-12
2011-07-12
Orgad, Edan (Department: 2439)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular node for directing data and applying cryptography
C713S150000, C713S153000, C709S229000, C726S025000
Reexamination Certificate
active
07979694
ABSTRACT:
A method for authenticating communication traffic includes intercepting a request directed over a network from a source address to open a connection to a target computer in accordance with a handshake procedure specified by a predetermined communication protocol. A reply to the request that deviates from the specified handshake procedure is sent to the source address. A response from the source address to the reply is analyzed in order to make an assessment of legitimacy of the source address. Upon determining, based on the assessment, that the source address is legitimate, the target computer is permitted to complete the handshake procedure so as to open the connection with the source address.
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Pazi Guy
Shtein Yehiel
Touitou Dan
Tzadikario Rephael
Cisco Technology Inc.
Fish & Richardson P.C.
Orgad Edan
Shaw Yi-Chen
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