4 ms·
a little bit tangential, but is it known how received imessages are able to be decrypted on multiple devices? if the sender's message encryption key is encrypt
by durkie 11y ago
a little bit tangential, but is it known how received imessages are able to be decrypted on multiple devices?
if the sender's message encryption key is encrypted with my iphone's public key, then my iphone's private key is the only key that can recover the the key used for the message.
so then how can desktop imessage also recover the key and decrypt the message? it seems like either:
* private keys are shared between devices (doesn't seem good) * imessages are encrypted multiple times based on the number of registered devices the recipient has (plausible?)
- superuser2 11y agoYes, the latter. They call it a "keybag." When you sign into iMessage on a new device, a new public key is added to your "keybag" and all messages addressed to your account are also encrypted with that key. You get a notification when a new device is signed into your iMessage account. However, Apple could presumably suppress this notification when adding a law enforcement key to your keybag. In principle, devices sending messages to you are aware of this key (they must handle it) but because iMessage is proprietary, the user has know way of knowing. In principle, iMessage's design but with open-source clients would be ideal.
- TACIXAT 11y agoSchemes using multiple keys exist. [1] 1. http://laurent.bachelier.name/2013/03/gpg-encryption-to-multiple-recipients/ http://laurent.bachelier.name/2013/03/gpg-encryption-to-mult...
- JackuB 11y agoShould I feel bad for opening that link on iPad? (Got redirected here: http://no-hipsters-allowed.t28.net http://no-hipsters-allowed.t28.net)
- superuser2 11y agoSame thing with Chrome on a Mac. Firefox on a Mac worked. Which is weird, Chrome is far more mainstream than Firefox these days.
- dfc 11y agoIt looks like it works based on the referer. Anyone from HN is tagged as a hipster. Copy the link and paste into a new tab.
- ryanmarsh 11y agoI got crashsafari.com and it did exactly that. Such 31337 h4xx0rz
- TACIXAT 11y agoI did not know this when posting the link, but I find it pretty hilarious. Thanks. Hipster neutral link: http://stackoverflow.com/a/597200/1176872 http://stackoverflow.com/a/597200/1176872