Design notes
9 min readNew phone, same identity
How Sigma Auth restores a BAP identity on a new device: a linked Google or GitHub account locates the encrypted backup, and a password or PRF passkey decrypts it locally.
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Sigma Auth Blog
Design notes from the people building Sigma Auth: the reasoning behind the product, written to be read rather than skimmed.
Applications in the Sigma ecosystem
BitChat NitroScribe1Sat MarketYoursMinervaDroplitJungleBusMetaLens