On 2024-02-05 at 10:34, Paul Wise wrote: > On Mon, 2024-01-15 at 06:05 -0500, P. J. McDermott wrote: > > > Paul Wise mentioned[8] on the fonts team list in 2021 a couple programs > > ("embed"[9], a derivative "ttembed"[10], and "ttfpatch"[11]) that unset > > the DRM/TPM bits, enabling full use of the fonts. "embed" was written > > by a font designer who noticed that his fonts had restrictive embedding > > permissions and that a tool he used (which was intended for font users, > > not designers) didn't allow lowering the restrictions. > > PS: for thread completeness, I note the embed author recieved DMCA > legal threats, but did not remove the tool from their website: > > http://carnage-melon.tom7.org/embed/dmca.html
Thanks, that's a very interesting read. I'm surprised to see that Paul F. Stack alleged that embed violates subsection 1201(a) (circumvention by descrambling, decrypting, etc. of a TPM that "effectively controls access". Tom Murphy 7 clearly explains why that doesn't apply per the definitions in 1201(a)(3): a bit field doesn't "[require] the application of information" etc. (e.g. a descrambling or decryption key). Instead, it actually requires other programs (not embed) to proactively check and obey the bit field. So even if embed didn't exist, unauthorized exercise of a right (1201(b), not unauthorized access to a work under 1201(a)) could be performed simply because another program lacks the extra code to check the bit field). Only subsection 1201(b) (circumvention of not a TPM, but of "protection afforded" by a TPM that "limits the exercise of a right") could apply here. However, 1201(b) doesn't prohibit the act of circumvention itself like 1201(a)(1) does. It only prohibits trafficking in technology etc. that circumvents, like 1201(a)(2) does. Stack seemed to pretend (or somehow believe) that 1201(a) applies, specifically to rely on the prohibition of the act of circumvention (not focusing on the trafficking in embed), in an attempt to scare Murphy into believing he's vicariously liable for contributory infringement in every (non-specified) act of circumvention by embed users (with a threat that the statutory damages of each act add up). It's not until his last "memorandum" in which Stack ever mentioned 1201(b) at all, let alone alleging any violation of it. Further, Stack oddly quoted from 1201(b) and at the end of that same paragraph made a remark about the DMCA not affecting contributory infringement, as if to suggest (flat out wrongly) that Murphy could be liable for acts of circumvention under 1201(b) (which as I noted does not actually prohibit such circumvention). Stack was careful to not explicitly say that Murphy is liable for contributory infringement by embed users under 1201(b) (there cannot possibly be any such infringement by users in the first place) but apparently wanted Murphy to believe that he could be liable. That is either a bad faith scare tactic or ignorance of the law (which is not good for a lawyer). Either way, this seems like an unserious legal threat, which if brought in court, any decent copyright defense attorney could probably have dismissed, perhaps even summarily and/or with prejudice. The DeCSS case cited by Stack could have been relevant here, except that it alleged misappropriation of the CSS descrambling key as a trade secret, and DVD CCA never alleged violation of the DMCA (1201(a), which in that case would have been relevant). Back to the matter at hand, subsection 1201(a) doesn't apply because no information (e.g. a descrambling or decryption key) is needed to access a font. Subsection 1201(b) could apply, making distribution of a program like embed or ttembed possibly illegal. But 1201(b) (unlike 1201(a)) doesn't prohibit the use of such a program. Does anyone know whether other jurisdictions have laws stricter than the US DMCA, i.e. laws that prohibit the use of programs like embed and ttembed (the act of circumventing "protection afforded" by a TPM that "limits the exercise of a right")? Has there ever been a legal threat (let alone a court case) alleging that a program like embed or ttembed violates subsection 1201(b) (or an international equivalent thereof)? Perhaps such a threat isn't financially worthwhile, because statutory civil damages (1203(c)(3)) are at most $2,500 per device/product/etc. (i.e. one program), and there can be no contributory infringement that multiplies such damages for each act of circumvention by users. And actual damages (which can be sought instead of, not in addition to, statutory damages) would be hard if not impossible to prove. -- Patrick "P. J." McDermott: http://www.pehjota.net/ Lead Developer, ProteanOS: http://www.proteanos.com/ Founder and CEO, Libiquity: http://www.libiquity.com/