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Keychain, biometrics and cryptography on iOS and macOS v1.0.0

Use this resource to review or implement secure storage, biometrics and cryptography on iOS and macOS

New

  • 496 downloads
  • 178 likes
  • 242 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install apple-keychain-security-review

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent follows a decision tree: auditing existing code, migrating legacy stores or implementing from scratch. It relies on references covering Keychain, LAContext, CryptoKit, Secure Enclave, SecTrust pinning and OWASP MASVS compliance.

Mostly picked by

Updated November 2, 2026

Card for the “Keychain, biometrics and cryptography on iOS and macOS” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
MIT

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What you get

  • SKILL.md: decision tree, core guidelines and reference tables
  • references/keychain-fundamentals.md: Keychain basics
  • references/cryptokit-symmetric.md: symmetric encryption with CryptoKit

Good fit for

  • You store OAuth tokens or API keys in an iOS or macOS app
  • You migrate secrets from UserDefaults to the Keychain

Not for

    Tags

    • keychain
    • ios
    • security
    • cryptokit
    • biometrics

    About

    You say

    “Review how this iOS app stores my tokens and tell me what to fix.”

    Card for the “Keychain, biometrics and cryptography on iOS and macOS” skill

    Skill published by ivan-magda under the MIT license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to review or implement secure storage, biometrics and cryptography on iOS and macOS
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • references/biometric-authentication.md26.6 KB
    • references/certificate-trust.md30.3 KB
    • references/common-anti-patterns.md30.3 KB
    • references/compliance-owasp-mapping.md36.7 KB
    • references/credential-storage-patterns.md41.3 KB
    • references/cryptokit-public-key.md32.7 KB
    • references/cryptokit-symmetric.md27.4 KB
    • references/keychain-access-control.md30.8 KB
    • references/keychain-fundamentals.md29.8 KB
    • references/keychain-item-classes.md30.4 KB
    • references/keychain-sharing.md30 KB
    • references/migration-legacy-stores.md36.6 KB
    • references/secure-enclave.md31.2 KB
    • references/testing-security-code.md33.9 KB
    • SKILL.md47.7 KB

    Origin and licence

    Listed unmodified

    Author
    ivan-magda
    Source
    github.com/ivan-magda/swift-security-skill/tree/bda2e0ccee6a64d45ec2b93790d0876c90e4eb89/swift-security-expert
    Licence
    MIT

    Notice

    « swift-security-expert » (ivan-magda, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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