cryptokit

SKILL.md

CryptoKit

Apple CryptoKit provides a Swift-native API for cryptographic operations:
hashing, message authentication, symmetric encryption, public-key signing,
key agreement, and Secure Enclave key storage. Available on iOS 13+.
Prefer CryptoKit over CommonCrypto or raw Security framework APIs in all
new code targeting Swift 6.3+.

Contents

Hashing

HMAC

Symmetric Encryption

Public-Key Signing

Key Agreement

Secure Enclave

Common Mistakes

Review Checklist

References