Keyless challenge and response system

A confidential information exchange between a sender and a receiver may be conducted without the use of encryption keys. The information is coded with a Challenge-Response Table that is shared between the sender and the receiver. Rather than sending a challenge and then waiting for a response, the c...

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Bibliographic Details
Main Authors RAMACHANDRAN ARUN C, MURUGAN SHUNMUGAM, VELUSAMY LAKSHMANAN, CHANDRASEKARAN SUBRAMANIYAM
Format Patent
LanguageEnglish
Published 01.12.2015
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
PHYSICS
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
WIRELESS COMMUNICATIONS NETWORKS
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Summary:A confidential information exchange between a sender and a receiver may be conducted without the use of encryption keys. The information is coded with a Challenge-Response Table that is shared between the sender and the receiver. Rather than sending a challenge and then waiting for a response, the challenge and response are both sent by the sender of the information. The information sent comprises an index with a challenge and a response from the Challenge-Response Table. Upon receiving the coded information, the receiver uses the Challenge-Response Table to decode the information by using the index to locate the challenge and its valid response. Upon determining that the challenge and the response are correct, a first decoded answer is determined. Upon determining that either the challenge or the response, or both, are incorrect, a second decoded answer is determined.
Bibliography:Application Number: US201213417040