Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2008-06-30
2011-12-13
Chea, Philip (Department: 2492)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C713S150000, C713S168000, C713S170000, C713S171000, C380S255000, C380S270000, C380S281000, C380S283000, C726S002000, C726S003000, C726S004000
Reexamination Certificate
active
08078873
ABSTRACT:
Techniques for two-way authentication between two communication endpoints (e.g., two devices) using a one-way out-of-band (OOB) channel are presented. Here, in embodiments, both communication endpoints may be securely authenticated as long as the one-way OOB channel is tamper-proof. Embodiments of the invention do not require the one-way OOB channel to be private to ensure that both endpoints are securely authenticated. Since providing a two-way or private OOB channel adds to the cost of a platform, embodiments of the invention provide for a simple and secure method for two-way authentication that uses only a non-private one-way OOB channel and thus helping to reduce platform cost. Other embodiments may be described and claimed.
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International Search Report and Written Opinion received for PCT application No. PCT/US2009/047699, mailed on Dec. 30, 2009, 10 pages.
Shah Rahul C.
Yarvis Mark D.
Chea Philip
Intel Corporation
Jordan IP Law, PC
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