Module tt_signature

Modules§

ClientDataJson 🔒: Minimal struct to deserialize only the fields we need from clientDataJSON. serde_json will ignore unknown fields and only parse type and challenge.
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.

KeychainVersion: Keychain signature version.
KeychainVersionError: Keychain version validation error.
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

AT 🔒
ED 🔒
MIN_AUTH_DATA_LEN 🔒
P256N_HALF: Half of the P256 curve order (n/2).
P256_ORDER: The P256 (secp256r1/prime256v1) curve order n.
SIGNATURE_TYPE_KEYCHAIN
SIGNATURE_TYPE_KEYCHAIN_V2
SIGNATURE_TYPE_P256: Signature type identifiers Note: Secp256k1 has no identifier - detected by length (65 bytes)
SIGNATURE_TYPE_WEBAUTHN
UP 🔒: WebAuthn authenticator data flags (byte 32) ref: https://www.w3.org/TR/webauthn-2/#sctn-authenticator-data
UV 🔒

derive_p256_address: Derives a P256 address from public key coordinates
normalize_p256_s: Normalize P256 signature s value to low-s form.
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