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