Collaborate Disseminate
Years ago, I wrote a program to encrypt some important files. I used Swift, Xcode, and Apple’s CryptoKit APIs. I also generated a random "master key" and stored it in the Keychain, using the SecItemAdd function.
Recently, I tried… Continue reading macOS data protection keychain – where could lost item be?
What if your keychain could tell you the temperature, all while staying battery-free? That’s the essence of this innovative keychain ‘NFC_temp’ by [bjorn]. This nifty gadget harnesses energy from an …read more Continue reading Tiny NFC-Powered Keychain Thermometer
Non-contact infrared (IR) thermometers used to be something of an exotic tool, but thanks at least in part due to the COVID-19 pandemic, they’re now the sort of thing you …read more Continue reading Building an IR Thermometer That Fits on Your Keychain
I am analyzing an iOS mobile application. I discovered that the app saves all logged-in users in the keychain, specifically saving their first name, last name, email, and id_token. This id_token, related to a JWT Token, cannot be used to i… Continue reading Keychain iOS: info on other users
If you are using an encrypted APFS container, for example, to encrypt the Time Machine, whenever the physical disk is plugged in, MacOS asks for a decryption password with an option to store it ("remember the password") in the ke… Continue reading Storing APFS password in Apple’s Keychain for Time Machine
So Apple syncs FIDO Passkeys across a user’s devices using iCloud Keychain.
Can one inspect those Passkeys in ones own iCloud Keychain e.g. with the macOS app Keychain Access? I have tried with version 11.0 on macOS 13.1, but don’t yet see… Continue reading Can one inspect Passkeys on iCloud Keychain [migrated]
In my Unity app in C# I am using a 3rd party script which allows me store and retrieve data using iOS keychain. The stored data is a private user generated key which is used to encrypt data before backing the file online (not iCloud).
I ch… Continue reading Storing encrypted data in iOS keychain
I’m interested in using Apple’s Secure Enclave on macOS or TPM on Windows to protect cryptographic keys used by an application from being accessed by other applications running with the same or higher privileges. However, the documentation… Continue reading How can an application, using Apple’s Secure Enclave on macOS or TPM on Windows, protect itself from other applications accessing its private keys?
What algorithm does MacOS use in its keychain system to generate passwords? (using password assistant accessed through keychain app and using Safari keychain).
Does it access/is it the GUI for the /dev/*random interface used in terminal? O… Continue reading Password generation algorithm used by MacOS keychain
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?
With traditional WebAuthn on a Yubikey or s… Continue reading Do passkeys on iCloud Keychain ever exist unencrypted outside the secure enclave?