cryptotokenkit
Access security tokens and smart cards using CryptoTokenKit. Use when building TKTokenDriver or TKSmartCardTokenDriver extensions, communicating with smart cards via TKSmartCard/TKSmartCardSlotManager, using iOS 26+ NFC smart-card sessions, registering smart cards, querying token-backed keychain items with kSecAttrTokenID, monitoring TKTokenWatcher, or configuring certificate-based smart-card authentication.
Profile →npx skills add dpearson2699/swift-ios-skills --skill cryptotokenkit --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# CryptoTokenKit Use CryptoTokenKit for token driver extensions, smart-card communication, token sessions, token-backed keychain integration, and certificate-based authentication in Swift 6.3 apps. **Platform availability:** CryptoTokenKit classes are available across Apple platforms, but capability depends on extension point, entitlement, hardware, and OS version. The smart-card app extension flow for login/keychain unlock is macOS. `TKSmartCardSlotManager.default` is optional and returns `nil` unless smart-card access is enabled. iOS/iPadOS 26+ add NFC smart-card slots and registration. ## 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 authentication and k
- Contents
- Architecture Overview
- Key Types
- Token Extensions
- Driver Class
- Token Class
- Info.plist and Registration
- Token Sessions
- PIN Authentication
- Smart Card Communication
- Discovering Card Readers
- Sending APDU Commands
- NFC Smart Card Sessions (iOS/iPadOS 26+)
- Keychain Integration
sudo -u _securityagent /Applications/TokenHost.app/Contents/MacOS/TokenHost
What does the cryptotokenkit skill do?
Access security tokens and smart cards using CryptoTokenKit. Use when building TKTokenDriver or TKSmartCardTokenDriver extensions, communicating with smart cards via TKSmartCard/TKSmartCardSlotManager, using iOS 26+ NFC smart-card sessions, registering smart cards, querying token-backed keychain items with kSecAttrTokenID, monitoring TKTokenWatcher, or configuring certificate-based smart-card authentication.
How do I install it?
Run `npx skills add dpearson2699/swift-ios-skills --skill cryptotokenkit --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From dpearson2699/swift-ios-skills, a repository with 963 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.