The Secure Enclave.

2026-07-21

Apple's Secure Enclave is a dedicated security chip inside your iPhone, and it cannot hold a SciPHR wallet's signing key. The chip works with one curve, P-256. Our XRP Ledger keys use a different one, Ed25519, so the key that moves funds cannot be created or stored inside the chip.

We use the Enclave for the two jobs it can do. The chip generates a P-256 key that never leaves the silicon. That key identifies your device in the wallet's on-chain identity record, and it wraps the key that opens your encrypted backup.

The Ed25519 wallet key lives in the iOS Keychain, released behind a live Face ID just long enough to sign.

The split gives each part one job: the Enclave proves which device is yours and guards the backup key, and the Keychain holds the key that signs.

Source: https://sciphr.io/docs/how-it-works.html

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