In this video, learn how to store a string in the Keychain.
- [Instructor] Next, we implement the method…to store a string securely in the keychain.…I'm going to call it set string for key.…Let me make some space here so…that we can see what we're doing.…This method is not private because…it's part of the public API of this facade,…so it's a public method, and I call it,…set, the first parameter is called string, just type string,…the second one is the key, also of type string.…
Now, there may be various issues…while accessing that keychain,…so I make this a throwable method.…First, we validate the input parameters.…I use the guard statement, and first we check…if the string is empty, and then the key, as well.…The guard should fail if any of the input arguments is empty…so I'm going to print an error message to the console,…say, "Can't add an empty string to the keychain."…We should also throw an error,…so let's declare a custom error type.…
I scroll up and define the keychain for said error,…enum, that conforms to the error protocol.…It should be a public enumeration,…
Author
Released
10/26/2018- Encryption, code signing, and sandboxing
- Preventing pasteboard leakage with and without coding
- Working with the keychain
- File data protection
- Securing apps using biometrics
- Implementing Touch ID and Face ID
- Performing asymmetric encryption and decryption
Skill Level Intermediate
Duration
Views
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Introduction
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Keeping your apps secure1m 13s
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What you should know1m 21s
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1. iOS Security Fundamentals
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Security in iOS1m 2s
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The Secure Boot1m 34s
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Touch ID and Face ID1m 42s
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Code signing1m
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Sandboxing53s
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User privacy41s
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2. User Data Protection
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Purpose strings2m 7s
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The pasteboard spy app2m 24s
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Hacking the UserDefaults4m 40s
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3. The Keychain
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Using the Keychain wrapper4m 31s
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4. File Data Protection
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5. Securing Apps Using Biometrics
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Implementing Touch ID2m 51s
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Implementing Face ID4m 57s
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6. Cryptographic APIs/Interfaces
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Creating the private key5m 49s
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Conclusion
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Next steps50s
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Video: Adding a value to the Keychain