Unauthorized Descrambling of a Random Line Inversion Scrambled TV Signal

Dipankar Raychaudhuri; L. Schiff

doi:10.1109/TCOM.1983.1095895

Unauthorized Descrambling of a Random Line Inversion Scrambled TV Signal

Dipankar Raychaudhuri, L. Schiff

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Simple techniques for unauthorized descrambling of a random line inversion scrambled television signal are proposed. An analysis of the complexity of the proposed descrambling process is presented and it is shown that high-quality estimates of moderately long encoding sequences can be obtained with reasonable memory and delay. An improvement to the basic scheme which substantially reduces memory requirements with only a slight increase in delay is also evaluated. Finally, it is shown that varying code lengths among a finite number of alternatives does not significantly increase descrambler complexity.

Original language	English (US)
Pages (from-to)	816-821
Number of pages	6
Journal	IEEE Transactions on Communications
Volume	31
Issue number	6
DOIs	https://doi.org/10.1109/TCOM.1983.1095895
State	Published - Jan 1 1983
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering
Engineering(all)

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10.1109/TCOM.1983.1095895

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