Analysis of new and alternative encryption algorithms and scrambling methods for digital-tv and implementation of a new scrambling algorithm (AES128) on FPGA. / Analys av nya alternativa krypteringsalgoritmer och skramblingsmetoder för digital-TV samt implementation av en ny skramblingsalgoritm (AES128) på FPGA.

Description

This report adresses why the currently used scrambling standard CSA needs a replacement. Proposed replacements to CSA are analyzed to some extent, and an alternative replacement (AES128) is analyzed. One alternative being the CSA3, and the other being the CISSA algorithm. Both of the proposed algorithms use the AES algorithm as a base. The CSA3 combines AES128 with a secret cipher, the XRC, while CISSA uses the AES cipher in a feedback mode. The different utilizations makes CSA3 hardware friendly and CISSA software friendly. The implementation of the Advanced Encryption Standard (AES) is analyzed for a 128 bit key length based design, and a specific implementation is presented.

Links & Downloads

1. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-111112

Tags

DVB

scrambling

CISSA

cipher

CSA

CSA3

AES128

FPGA

Additional Fields

Identifer	oai:union.ndltd.org:UPSALLA1/oai:DiVA.org:liu-111112
Date	January 2014
Creators	Bengtz, Gustaf
Publisher	Linköpings universitet, Institutionen för systemteknik, Linköpings universitet, Tekniska högskolan
Source Sets	DiVA Archive at Upsalla University
Language	English
Detected Language	English
Type	Student thesis, info:eu-repo/semantics/bachelorThesis, text
Format	application/pdf
Rights	info:eu-repo/semantics/openAccess