[imsc] CSS font-matching algorithm may introduce fingerprinting issues (#530)

npdoty has just created a new issue for https://github.com/w3c/imsc:

== CSS font-matching algorithm may introduce fingerprinting issues ==
Review of TTML2 2nd Edition noted many potential fingerprinting vectors: https://github.com/w3c/ttml2/issues/1189
(Whether those issues present a privacy risk depends on a clearer understanding of what information is revealed by content processors to whom.)

Addition of external font loading and the CSS font-matching algorithm could introduce those fingerprinting issues to IMSC 1.2.

Mitigations for fingerprinting in CSS are under discussion now in CSSWG and PING.

More info in email: https://lists.w3.org/Archives/Public/public-privacy/2020JanMar/0055.html

Please view or discuss this issue at https://github.com/w3c/imsc/issues/530 using your GitHub account

Received on Thursday, 19 March 2020 14:56:56 UTC