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A comment on Ask HN: How do we know Signal or Telegram don't store our data on their servers?. Parent comment
Indeed it is far from straightforward that merely doing a video call suffices to check the keys.
Signal is famously using a special protocol for secure key sharing through the server, which I have not studied.
But as said by another comment, there is no way around verifying explicitly the public key using an independent channel.
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Indeed it is far from straightforward that merely doing a video call suffices to check the keys.
Signal is famously using a special protocol for secure key sharing through the server, which I have not studied.
But as said by another comment, there is no way around verifying explicitly the public key using an independent channel.