End-to-end crypto in Matrix

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Discussion around implementing and using encryption in Matrix via Olm/Megolm | Spec work and reference impl work in #e2e-dev:matrix.org83 Servers

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11 Dec 2019
01:14:57@chris:cooperteam.netRAOF(Particularly the first time, and whenever you need to renegotiate the ratchet-y-thing, which IIRC is whenever a device leaves, joins, or 100 messages have been sent)
01:16:27@verahunny:matrix.orgveraif you need to encrypt to each device whats the point of a group session?
01:16:42@verahunny:matrix.orgveraor does each device have its own group session per room?
01:46:01@hubert:uhoreg.cauhoregEach device has its own outbound group session per room. Encrypting a message once for the room, and then encrypting the session data for each device means less encryption than encrypting the message once for each device.
01:48:54@verahunny:matrix.orgveraby encryptiing a message once do you mean the device creates a new outbound group session after every message?
01:49:44@verahunny:matrix.orgveraoh you mean encrypting once for room and once for session data but the session is long lasting
02:56:50@verahunny:matrix.orgvera uhoreg: oh nice another debian user
05:12:46@verahunny:matrix.orgverairc is such a good testing ground for code lol
05:25:52@verahunny:matrix.orgveraanyone know the story behind the keys on OTKs? It's like "AAAAAAAAQ"
05:54:43@trilobite17:matrix.orgtrilobite17that almost sounds like a sneeze
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13 Dec 2019
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14 Dec 2019
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15 Dec 2019
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16 Dec 2019
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