Module tt_signature 

Modules

P256SignatureWithPreHash_flags 🔒

Structs

KeychainSignature

Keychain signature wrapping another signature with a user address This allows an access key to sign on behalf of a root account

P256SignatureWithPreHash

P256 signature with pre-hash flag

P256SignatureWithPreHashFlags

Fieldset that facilitates compacting the parent type. Used bytes: 1 | Unused bits: 7

WebAuthnSignature

WebAuthn signature with authenticator data

WebAuthnSignatureFlags

Placeholder struct for when there is no need for a fieldset. Doesn’t actually write or read any data.

Enums

PrimitiveSignature

Primitive signature types that can be used standalone or within a Keychain signature. This enum contains only the base signature types: Secp256k1, P256, and WebAuthn. It does NOT support Keychain signatures to prevent recursion.

TempoSignature

AA transaction signature supporting multiple signature schemes

Constants

MIN_AUTH_DATA_LEN 🔒

SIGNATURE_TYPE_KEYCHAIN

SIGNATURE_TYPE_P256

Signature type identifiers Note: Secp256k1 has no identifier - detected by length (65 bytes)

SIGNATURE_TYPE_WEBAUTHN

Functions

derive_p256_address

Derives a P256 address from public key coordinates

serialize_once_lock 🔒 serde

Helper function to serialize a OnceLock as an Option if it’s initialized.

verify_p256_signature_internal 🔒

Verifies a P256 signature using the provided components

verify_webauthn_data_internal 🔒

Parses and validates WebAuthn data, returning the message hash for P256 verification ref: https://www.w3.org/TR/webauthn-2/#sctn-authenticator-data