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Why Don’t Smartphones Have A “Guest Mode”?

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Re: Why Don’t Smartphones Have A “Guest Mode”?

#11

"Why Don’t Smartphones Have A Guest Mode?" Because dealing with multiple profiles and/or different profile types is a fucking huge giant pain the ass and a monumental amount of work! Xbox has local, guest, live silver, and live gold accounts. Dealing with all the different profiles and switching between is a nightmare. Urgh, no thanks.

Wasn't this a solved problem... 40 years ago? At least?

Re: Why Don’t Smartphones Have A “Guest Mode”?

#12

I'm more bewildered to why no tablets seem to have multi-user functionality. In my experience, tablets get shared far more often than phones.

I work for a tablet manufacturer, and I spoke to an Android product manager at I/O last year about this.

According to him, this is a feature that pops up once in awhile, but they have a long list of stuff to do and this is just one of those things that always gets bumped out.

From my perspective as a platform dev, I'd like to get into some of the technical problems with changing this, but I could end up breaking some NDAs or something. I'll just say, when you start mucking around with adding login code, file system changes, and the current dmcrypt encryption, you hit lots of fun design problems.

Re: Why Don’t Smartphones Have A “Guest Mode”?

#13

Earlier quoted context omitted.

Haven't people suggested this with regards to TrueCrypt's hidden volumes, with "rubber-hose cryptography" being the most common answer, and "yeah, well, prove that this is your REAL phone unlock code" being the second most common.

Prove that it isn't, officer.

No cellphones are allowed in top secret military locations in the US, because all can be remotely signalled to start recording audio. We know they'll turn a phone into a bug if they need to, so it's foolish to assume they wouldn't be able to get the real PIN.

Re: Why Don’t Smartphones Have A “Guest Mode”?

#15

Earlier quoted context omitted.

Haven't people suggested this with regards to TrueCrypt's hidden volumes, with "rubber-hose cryptography" being the most common answer, and "yeah, well, prove that this is your REAL phone unlock code" being the second most common.

Prove that it isn't, officer.

With that, you've just admitted that you're aware of the possibility of setting up multiple profiles with different unlock codes. Be careful what information you leak when you're trying to look innocent!

Re: Why Don’t Smartphones Have A “Guest Mode”?

#17
post #15

Earlier quoted context omitted.

Prove that it isn't, officer.

With that, you've just admitted that you're aware of the possibility of setting up multiple profiles with different unlock codes. Be careful what information you leak when you're trying to look innocent!

How so? The officer was the one that suggested the possibility in this scenario.

Re: Why Don’t Smartphones Have A “Guest Mode”?

#18
there are at least a few big companies already doing virtualization with android to separate business and personal modes so that corporate email and other apps can be quarantined off with a secure password, leaving personal email and games to run in a separate environment that may not require as much security to unlock.

presumably the same technology could be used to provide "normal" and guest environments.

https://www.youtube.com/watch?v=ydXJjCN2G-A

Re: Why Don’t Smartphones Have A “Guest Mode”?

#19

"Why Don’t Smartphones Have A Guest Mode?" Because dealing with multiple profiles and/or different profile types is a fucking huge giant pain the ass and a monumental amount of work! Xbox has local, guest, live silver, and live gold accounts. Dealing with all the different profiles and switching between is a nightmare. Urgh, no thanks.

Wasn't this a solved problem... 40 years ago? At least?

Sure. If you're willing to log out of your smart phone context, and restart any needed tools in the new guest context whenever you hand over your phone.

Oh, I'm sorry, you wanted instantaneous user switching? That's a smidgen harder than the 40-year-old solutions :)

Re: Why Don’t Smartphones Have A “Guest Mode”?

#20

"Why Don’t Smartphones Have A Guest Mode?" Because dealing with multiple profiles and/or different profile types is a fucking huge giant pain the ass and a monumental amount of work! Xbox has local, guest, live silver, and live gold accounts. Dealing with all the different profiles and switching between is a nightmare. Urgh, no thanks.

At least two of the three most prominent smart phone roms are backed by operating systems that have long histories of (more or less successful) profile switching. It might in fact be a difficult problem, but it's one that has serviceable solutions and has for some time.
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