WebAuthn & P256 Signatures

Tempo EOA addresses can be derived from multiple signature types. Allowing you to sign transactions with standard Ethereum wallets, hardware security keys, biometric authentication like Face ID and Touch ID, or even using passkeys.

The supported signature types are:

secp256k1

The standard Ethereum signature format. No type identifier needed, this is the default.

P256

Raw P256 signatures that include the public key coordinates. Identified by type 0x01.

The preHash flag indicates whether the digest should be hashed with SHA256 before verification. Set this to true if using Web Crypto API or similar implementations that require pre-hashing.

WebAuthn

WebAuthn signatures include authenticator data from biometric devices. Identified by type 0x02.

The verification data contains information from the authenticator (device metadata, user presence flags, etc.).