Reading
https://github.com/github/dmca/blob/...-04-readium.md, some issues we have with DRMs seem to be solved in this LCP thing:
LCP possesses several interesting characteristics:
This DRM solution is available on every client platform (iOS, Android, Windows, MacOS, Linux, specific eInk Readers); with the open-source Readium development toolkits, EDRLab provides an open-source codebase which eases such integration. LCP does not lock the user into a proprietary environment. This is why e-lending libraries are moving to this solution, worldwide.
The DRM solution is especially useful for library e-lending, as it provides loan extensions and early return features.
This DRM solution does not hurt the accessibility of the content it protects, for people with reading impairment; this is why is it promoted by the DAISY Consortium.
This DRM solution lets users share LCP protected ebooks with friends and family; there is no predefined number of devices which can use an LCP protected ebook.
This is the only DRM solution which is based on an open standard. This means that inspecting the software for flaws is easy. The encryption profile is the only confidential information.
When we compare with the Kindle DRM (pure locker) or the Adobe DRM (no fair use, issues with accessibility), plus the large use of their solution by libraries, it's not so bad.