cryptotokenkitlisted

Access security tokens and smart cards using CryptoTokenKit. Use when building token driver extensions with TKTokenDriver and TKToken, communicating with smart cards via TKSmartCard, implementing certificate-based authentication, managing token sessions, or integrating hardware security tokens with the system keychain.
dpearson2699/swift-ios-skills · ★ 730 · AI & Automation · score 80

Install: claude install-skill dpearson2699/swift-ios-skills

# CryptoTokenKit Access security tokens and the cryptographic assets they store using the CryptoTokenKit framework. Covers token driver extensions, smart card communication, token sessions, keychain integration, and certificate-based authentication. Targets Swift 6.3. **Platform availability:** CryptoTokenKit is primarily a macOS framework. Smart card reader access (`TKSmartCard`, `TKSmartCardSlotManager`) requires macOS. Token extension APIs (`TKTokenDriver`, `TKToken`, `TKTokenSession`) are macOS-only. Client-side token watching (`TKTokenWatcher`) and keychain queries filtered by `kSecAttrTokenID` are available on iOS 14+/macOS 11+. NFC smart card slot sessions are available on iOS 16.4+. ## Contents - [Architecture Overview](#architecture-overview) - [Token Extensions](#token-extensions) - [Token Sessions](#token-sessions) - [Smart Card Communication](#smart-card-communication) - [Keychain Integration](#keychain-integration) - [Certificate Authentication](#certificate-authentication) - [Token Watching](#token-watching) - [Error Handling](#error-handling) - [Common Mistakes](#common-mistakes) - [Review Checklist](#review-checklist) - [References](#references) ## Architecture Overview CryptoTokenKit bridges hardware security tokens (smart cards, USB tokens) with macOS authentication and keychain services. The framework has two main usage modes: **Token driver extensions** (macOS only) -- App extensions that make a hardware token's cryptographic items available to the