I discussed this with Alon on IRC: you wouldn't use pepper to do this. NaCl doesn't imply pepper, you can expose a subset of syscalls into the trusted code base

I discussed this with Alon on IRC: you wouldn't use pepper to do this. NaCl doesn't imply pepper, you can expose a subset of syscalls into the trusted code base. I understand the feeling about DRM, but given that sandboxed DRM is going to happen I'd hope that the best efforts possible are put in to make users safe. Good sandboxing seems the right way to go. I'm not any kind of a security expert, but jschuh seems to think the current sandbox isn't sufficient: https://bugzilla.mozilla.org/show_bug.cgi?id=1011491 https://bugzilla.mozilla.org/show_bug.cgi?id=1011491 I hope the right improvements go into tightening the DRM sandbox :)