# Authentication Flow

1. Log in via **email OTP or social sign-in**.
2. You are prompted to create a **passkey (TouchID, FaceID, Windows Hello)**.
3. A **biometric check** generates a passkey stored in the **secure enclave**.
4. Dynamic sends a **challenge**, which is signed and verified using Turnkey.
5. Turnkey encrypts this data in an **AWS Nitro Enclave**, associating the passkey with the user's wallet.
6. Users can now **sign transactions using their passkey**.


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