Question 1

How do I sign a JWT with JOSESwift in Swift?

Accepted Answer

Use the JWS component: create a JWSHeader with your algorithm (e.g., .RS512), a Payload from your data, and a Signer with a SecKey. Serialize it to a compact string, as shown in the README examples for signing and verifying.

Question 2

Is JOSESwift safe for production iOS apps?

Accepted Answer

Yes, it's used in production by Airside Mobile and relies on Apple's Security framework for cryptography. However, review the supported algorithms and known bugs (like JWK decoding issues) to ensure it meets your specific security requirements.

Question 3

What's better for JWT in Swift: JOSESwift or Swift-JWT?

Accepted Answer

JOSESwift is more comprehensive, covering JWE and JWK beyond JWT (JWS), making it ideal for full JOSE standards. Swift-JWT focuses solely on JWT and might be simpler for basic token handling, but lacks encryption features.

Question 4

How to encrypt sensitive data using JOSESwift on iOS?

Accepted Answer

Use the JWE component: set up a header with key management and content encryption algorithms (e.g., .RSA1_5 and .A256CBCHS512), a Payload, and an Encrypter with a public key. Serialize it for transmission, following the README's encryption guide.

Question 5

Does JOSESwift support elliptic curve cryptography?

Accepted Answer

Yes, it supports ES256, ES384, and ES512 for digital signatures and ECDH-ES for key management in JWE, as listed in the algorithm tables, enabling modern, secure cryptographic operations.

Question 6

Why doesn't JOSESwift have JSON serialization?

Accepted Answer

The project currently prioritizes compact serialization due to development resources, as stated in the README. JSON serialization is a known gap, and contributions are encouraged to add this feature.

JOSESwift

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