Keychain Services: A Secure Vault for Small Secrets

Think of Keychain as a system-managed safe deposit box for small secrets like passwords or tokens. It's the go-to for storing API keys or user credentials securely. The main footgun is its clunky C-style API, leading most developers to use a wrapper.
Think of Keychain as a system-managed safe deposit box for small secrets like passwords or tokens. The OS handles all encryption and access control. It's the go-to for storing API keys or user credentials you don't want in plaintext UserDefaults. The main footguns are its clunky, C-style API (most devs use a wrapper) and its intended use for *small* secrets only, not large files. Data also persists after app deletion by default.
Read the original → developer.apple.com
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