MPEG Common Encryption (abbreviated MPEG-CENC) refers to a set of two MPEG standards governing different container formats:
for ISOBMFF, Common encryption in ISO base media file format files (ISO/IEC 23001-7:2016)[1]
for MPEG-TS, Common encryption of MPEG-2 transport streams (ISO/IEC 23001-9:2016)[2]
The specifications are compatible, so that conversion between the encrypted formats can happen without re-encryption. They define metadata, specific to each format, about which parts of the stream are encrypted and by which encryption scheme. Each encryption scheme may have different methods to retrieve the decryption key.
Availability of the Standardsedit
The standards can be purchased from iso.org, on paper and in digital forms. As of July 2016, the prices were 118 Swiss franc (US$122) for the ISOBMFF version, and 58 Swiss franc (US$60) for the TS version. An included copyright notice prohibits redistribution without written permission, also on local area networks. Each page is watermarked with the purchaser's name and company.
"cenc" Initialization Data Format – a rough description, specific to ISOBMFF, of the Clear Key encryption scheme, intended for use in Encrypted Media Extensions
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mpeg, common, encryption, abbreviated, mpeg, cenc, refers, mpeg, standards, governing, different, container, formats, isobmff, common, encryption, base, media, file, format, files, 23001, 2016, mpeg, common, encryption, mpeg, transport, streams, 23001, 2016, s. MPEG Common Encryption abbreviated MPEG CENC refers to a set of two MPEG standards governing different container formats for ISOBMFF Common encryption in ISO base media file format files ISO IEC 23001 7 2016 1 for MPEG TS Common encryption of MPEG 2 transport streams ISO IEC 23001 9 2016 2 The specifications are compatible so that conversion between the encrypted formats can happen without re encryption They define metadata specific to each format about which parts of the stream are encrypted and by which encryption scheme Each encryption scheme may have different methods to retrieve the decryption key Availability of the Standards editThe standards can be purchased from iso org on paper and in digital forms As of July 2016 the prices were 118 Swiss franc US 122 for the ISOBMFF version and 58 Swiss franc US 60 for the TS version An included copyright notice prohibits redistribution without written permission also on local area networks Each page is watermarked with the purchaser s name and company References edit Iso Iec 23001 7 2016 Iso Iec 23001 9 2016 External links edit cenc Initialization Data Format a rough description specific to ISOBMFF of the Clear Key encryption scheme intended for use in Encrypted Media Extensions nbsp This computing article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title MPEG Common Encryption amp oldid 1050438386, wikipedia, wiki, book, books, library,
