Open Access Journal

ISSN : 2456-1290 (Online)

International Journal of Engineering Research in Computer Science and Engineering (IJERCSE)

Monthly Journal for Computer Science and Engineering

Open Access Journal

International Journal of Engineering Research in Mechanical and Civil Engineering (IJERMCE)

Monthly Journal for Mechanical and Civil Engineering

ISSN : 2456-1290 (Online)

KEELOQ Code Hopping Technology Development in Communciation Systems

Author : Arunkumar 1 Mamatha Dhananjaya 2 Dr. T.C.Manjunath 3 Pavithra G 4 Satvik M. Kusagur 5

Date of Publication :7th November 2016

Abstract: Keeloq code hopping technology incorporates high security, a small package outline and low cost. This technology is incorporated in keeloq encoders such as HCS300 family and keeloq decoders such as HCS500 family which makes these devices a perfect solution for unidirectional remote keyless entry systems and access controls systems. Keeloq encryption and decryption algorithms in encoders and decoders respectively generate a unique code for every new transmission, i.e. when the user presses a button. Thus rendering code capture and resend schemes useless Keeloq is used in majority of remote keyless entry systems by companies as Daewoo, fiat, Honda, GM, Toyota, Volvo etc. The light-weight architecture of the KeeLoq cipher allows for an extremely low-cost and efficient hardware implementation. This contributed to the popularity of the KeeLoq cipher among designers of remote keyless entry systems, automotive and burglar alarm systems, automotive immobilizers, gate and garage door openers, identity tokens, component identification systems. For instance, the KeeLoq block cipher is used in the HomeLink wireless control systems to secure communication with some garage door openers. The KeeLoq technology supplied by Microchip Technology Inc. includes the KeeLoq cipher and a number of authentication protocols.

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