nano

Code signing utility — validates and manages application signatures and certificates

Validates code signatures on macOS applications and frameworks, verifying cryptographic signatures against embedded certificates and Apple's code signing infrastructure. Accesses the Keychain to retrieve and manage signing certificates and keys. Checks code signature validity, inspects embedded entitlements, and validates the signature chain against trusted roots. Communicates with network endpoints for certificate revocation checking and signature verification services. Handles both local validation and queries to Apple's signing services.AI