MPEG Common Encryption: Difference between revisions

Revision as of 18:17, 16 September 2016

Revision as of 18:18, 16 September 2016

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'''MPEG Common Encryption''' (abbreviated '''MPEG-CENC''') refers to a set of two [[Moving Picture Experts Group|MPEG]] standards governing different [[Digital container format|container formats]]:

* for [[ISO_base_media_file_format|ISOBMFF]], ''Common encryption in ISO base media file format files'' (ISO/IEC 23001-7:2016)[<ref>http://www.iso.org/iso/home/store/catalogue_tc/catalogue_detail.htm?csnumber=68042]</ref>

* for [[MPEG transport stream|MPEG-TS]], ''Common encryption of MPEG-2 transport streams'' (ISO/IEC 23001-9:2016)[<ref>http://www.iso.org/iso/home/store/catalogue_ics/catalogue_detail_ics.htm?csnumber=70175]</ref>

The specifications are compatible, so that conversion between the encrypted formats can happen without re-encryption.

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== Copyright ==

The standards can be purchased from iso.org, on paper and in digital forms. As of July 2016, the prices were 118 [[Swiss franc]] (122 USD) for the ISOBMFF version, and 58 Swiss franc (60 USD) for the TS version. An included copyright notice prohibits redistribution without written permission, also on [[local area network]]s. Each page is watermarked with the purchaser's name and company.

== External links ==

* [https://w3c.github.io/encrypted-media/format-registry/initdata/cenc.html "cenc" Initialization Data Format] – a rough description, specific to ISOBMFF, of the ''Clear Key'' encryption scheme, intended for use in [[Encrypted Media Extensions]]

== See also ==

* [[MPEG-Dash]]

==References==

{{reflist}}

== External links ==

* [https://w3c.github.io/encrypted-media/format-registry/initdata/cenc.html "cenc" Initialization Data Format] – a rough description, specific to ISOBMFF, of the ''Clear Key'' encryption scheme, intended for use in [[Encrypted Media Extensions]]

[[Category:MPEG]]