NDLI: Composite Transposition Substitution Chaining Based Cipher Technique

Content Provider	IEEE Xplore Digital Library
Author	Kumar Pal, J. Mandal, J.K. Gupta, S.
Copyright Year	2008
Description	Author affiliation: Comput. Sci. & Eng., Kalyani Univ., Kalyani (Mandal, J.K.) \|\| Inf. Technol., JIS Coll. of Eng., Kalyani (Gupta, S.) \|\| Comput. Sci. & Eng., Kalyani Gov. Eng. Coll., Kalyani (Kumar Pal, J.)
Abstract	In this paper, variable block length based character / bit level transformation has been proposed for encryption, where a block of 16 characters/128 bits has been taken into account. The block is passed through a substitution operation followed by various transpositions using multi dimensional array. The block is operated with its one-time sub key which produces intermediate output of the same length. Consecutive 8 characters/64 bits are taken from the stream of plain text with the previous text block which produces a block containing stream of 192 bits. This is used as current text block in order to produce a new text block containing 24 characters using same techniques. Another 8 characters are taken with previous block and the same operations are performed to produce a block of 256 bits. If the plain text contains greater than 32 characters i.e. 256 bits, then every 256 bit block is XORed with the previous 256 bit block except the first block. Finally bits are selected randomly from MSB position and the selected bits are processed through a special substitution technique to generate the final encrypted block.
Starting Page	433
Ending Page	439
File Size	114190
Page Count	7
File Format	PDF
ISBN	9781424429622
DOI	10.1109/ADCOM.2008.4760485
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-12-14
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Composite Transposition substitution chaining based Cipher technique (CTSCCT) Government Humans Educational institutions Encoding Information technology Wrapping Session Key Computer science wrapping technique Matrices Internet Cryptography Sub Key
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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