Using Java library with Kotlin Multiplatform

Question

I'm looking towards expanding an Android application written in Kotlin to iOS, and I would like to use Kotlin Multiplatform for that. But since I have one big Java dependency, which is BouncyCastle, I'm not sure it's possible. Are there any alternatives for BouncyCastle for Kotlin or a way to use java library with multiplatform?

Answer 1

No, at least assuming you are using Kotlin Native on iOS, your not going to be able to use Bouncy Castle. If your doing something a bit weirder, like using Gluon to distribute a Java based app, then the dependency should just work. Instead you'll need to use to crypto facilities provided by iOS or another library such as CryptoSwift .

If your hoping to provide a common interface that can be used across multiple platforms, you can accomplish that with platform specific declarations , but the actual implementation is going to have to vary based on the platform.