MSC4483: Encrypted Account Data#4483
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Signed-off-by: Logan Devine <logan@zirco.dev>
Signed-off-by: Logan Devine <logan@zirco.dev>
thetayloredman
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thetayloredman
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May 25, 2026
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| investigated in the Matrix ecosystem, and if it is determined that these algorithms are ineffective, a future MSC may | ||
| introduce additional algorithms. |
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I am unsure how to introduce forward-compatibility in this MSC directly as it is very possible the preferred algorithm will change in the future. To my understanding, secrets within SSSS lack any form of key ID (only the root keys do), so the algorithm of the ADK would need to be specified somehow.
turt2live
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turt2live
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May 25, 2026
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Implementation requirements:
- Client (setting)
- Client (reading)
Johennes
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Jun 1, 2026
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| * Eliminate the ADK and simply use the SSSS master. | ||
| Using the SSSS master would require re-encrypting account data whenever recovery keys change. Usage of a separate ADK | ||
| is extensible for further `account_data` events, alongside providing the ability to rotate the ADK independently of | ||
| SSSS. |
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Additionally using the "SSSS master" would require clients to keep its private part stored which, I think, many clients currently don't do?
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Signed-off-by: Logan Devine logan@zirco.dev