securityd_system

Secure Enclave and cryptographic key manager — handles hardware-backed encryption operations

Manages cryptographic operations using hardware security features including the Secure Enclave and device key bag. Reads and uses keychain encryption keys for protecting sensitive data, with direct hardware driver communication to access secure storage. Implements security framework extensions for code signing and certificate operations. Submits diagnostic reports about its operations through Apple's symptom reporting framework. Exposes 18 XPC services for system components to request cryptographic operations and key management, with protocol buffer serialization for inter-process communication.AI