DIGITAL SIGNATURES FOR DIGITAL TELEVISION APPLICATIONS Russian patent published in 2008 - IPC H04N7/16 G06F21/00

Abstract RU 2336658 C2

FIELD: physics, video technics.

SUBSTANCE: invention concerns additional or interactive television content security, particularly subscribing to additional or interactive TV content. Method of signing additional TV content application in the form of a file set with program code and associated objects involves the following stages: identification of at least the first part (220₁-220_M, 220₁-220_V) of files in at least one file cluster (214₁-214_N); cluster signature (211₁, 211_N) calculation for each cluster; creation of security data resource file (100), which includes signature location description (120, 120_A).

EFFECT: increased TV content security.

51 cl, 16 dwg, 1 tbl

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RU 2 336 658 C2

Authors

Kheredia Ehdvin A.

Dates

2008-10-20—Published

2003-10-07—Filed