What is Keychain.md

What is Keychain?

Keychain is the password management system in macOS, developed by Apple. It was introduced with Mac OS 8.6, and has been included in all subsequent versions of the operating system, now known as macOS. A Keychain can contain various types of data: passwords, private keys, certificates, and secure notes.

Notice:

This build of CodeEditKeychain could change at anytime if bugs or breaking changes are found in the module.

Usage

String

let keychain = CodeEditKeychain()
keychain.set("hello world", forKey: "my key")
keychain.get("my key")

Boolean

let keychain = CodeEditKeychain()
keychain.set(true, forKey: "my key")
keychain.getBool("my key")

Data

let keychain = CodeEditKeychain()
keychain.set(dataObject, forKey: "my key")
keychain.getData("my key")

Removing Keys

let keychain = CodeEditKeychain()
keychain.delete("my key")

Return All Keys

let keychain = CodeEditKeychain()
keychain.allKeys // Returns the names of all keys

Check if operation was successful

One can verify if set, delete and clear methods finished successfully by checking their return values. Those methods return true on success and false on error.

if keychain.set("hello world", forKey: "my key") {
  // Keychain item is saved successfully
} else {
  // Report error
}

Setting key prefix

One can pass a keyPrefix argument when initializing a CodeEditKeychain object. The string passed in keyPrefix argument will be used as a prefix to all the keys used in set, get, getData and delete methods. Adding a prefix to the keychain keys can be useful in unit tests. This prevents the tests from changing the Keychain keys that are used when the app is launched manually.

let keychain = CodeEditKeychain(keyPrefix: "myTestKey_")
keychain.set("hello world", forKey: "hello") // Value will be stored under "myTestKey_hello" key