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For security questions about Apple's Keychain Access app and the keychain file format on macOS and iOS

5 votes
1 answer
610 views

Do passkeys on iCloud Keychain ever exist unencrypted outside the secure enclave?

Regarding Apple's beta feature of storing WebAuthn passkeys in the iCloud Keychain, does anybody know if the unencrypted passkeys ever leave the secure enclave, and get stored in RAM or anything? … I'm hoping it works a similar way for iCloud Keychain passkeys: that the encrypted passkey and the challenge are fed to the secure enclave, which then decrypts the encrypted passkey, and then uses it to …
Mohamed Hafez's user avatar