Le 11/12/2014 à 13h56, Richard Stallman a écrit : >> The advantage is that with Replicant on a decent phone, you almost get >> something as secure as a normal (understand: not recent, fancy, >> SecureBoot and/or tablet laptops) computer. > > Unfortunately, that is not so. And we can't make it so.
> the phone has a second processor, the "modem" processor, which talks > with the phone radio network. That is always run by proprietary > software with a universal back door. > Even worse, nearly all phones allow the modem processor to take > control of the main processor I precise: I was not speaking of “ordinary phones” but replicant-supported phones, more precisely those where (as I mentionned it in my mail) the modem is *separated* and can’t take control of main CPU and RAM (or at least microphone/webcam/etc.) via DMA. Then on *this* kind of phone, it’s almost equivalent to what most people (unfortunately) use with a “normal” computer: without SecureBoot, with a proprietary BIOS and a proprietary-firmware wifi card. Of course that’s still less free than a Leemote Yeelong or even a Thinkpad X60(T)/T60. But that’s equivalent to most user cases, just to say Replicant on an appropriate phone (not so special, a few are fine) is nearly equivalent, and on a phone that’s really impressing. Then of course *other* problems come: you always let your phone on, and it has a geolocator activated, you can’t on Android has a decently hackable system, you can’t easily disable/filter javascript, you can’t have a keyboard allowing you to write a very complex password decrypting your disk, you can’t install a free BIOS, you tend to use it more passivally as a consumer than actively as a producer (interface made for that): you can’t do a lot of useful things for your security and freedom… But *technically* Replicant make it *possible* to have something equivalent.
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