NDLI: An automatic resynchronization technique for secure communication with stream ciphers

Content Provider	IEEE Xplore Digital Library
Author	Janghong Yoon
Copyright Year	2005
Description	Author affiliation: NSRI (Janghong Yoon)
Abstract	Synchronous stream ciphers require perfect synchronization between the encryptor and the decryptor. However, in some applications, the risk of synchronization loss cannot be eliminated completely. To reduce the risk, fixed resynchronization, achieved by inserting a synchronization pattern (SP) and a session key (SK) in ciphertext at fixed timesteps, is used in some cases. But there are problems associated with fixed resynchronization. In the paper, we propose a new resynchronization by using the same key-stream after skipping some keystreams at fixed timesteps, without inserting an SP and an SK. The proposed method is adequate for asynchronous (start/stop) data terminal equipments which are used in low-speed sensor networks and is more effective than fixed resynchronization in a noisy channel, because it is less dependent on channel states than fixed resynchronization
Starting Page	69
Ending Page	73
File Size	1441821
Page Count	5
File Format	PDF
ISBN	0780393937
DOI	10.1109/MILCOM.2005.1605666
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-10-17
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Cryptography Bit error rate Error correction codes Synchronous generators Protection Costs Error correction Working environment noise Noise figure
Content Type	Text
Resource Type	Article

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