Diffie-Hellman implementation for iOS?

Question

This is my first question here as before I found all workarounds from another questions.

The question is very short: Does anyone know if there is any Diffie-Hellman implementation for iOS? I mean...the idea is to share between 2 devices (one is iOS and the other a java web service) a secret key, and I think the best idea should be that method.

If not, can anyone suggest me another option?

I'm not an advanced developer, that's why i'm trying to check for a framework for this.

Thanks in advance everyone!

Answer 1

There is a Diffie-Hellman implementation for iOS in github. You can use it. https://github.com/benjholla/Diffie-Hellman-iOS Also you can use openssl with ios. Considering openssl is a proven library, it is better to use openssl for this purpose.

Answer 2

A quick google gives;

http://www.chilkatsoft.com/dh-objc.asp

You should really look into just using SSL though instead of inventing your own security protocol.

Answer 3

There is a Diffie-Hellman implementation for iOS SWIFT-4 on github with complete example code. You can use it. https://github.com/raoarafat/DeffieHelmanKeyExchange-Swift. Just download & use it.

SWIFT-4 Compatible.

Enjoy...

Answer 4

You can include openssl as a static library in your app project and use its Diffie-Hellman functions. As Joachim rightly says though, if you're communicating to a web service the easiest and best approach is to use SSL.

Answer 5

Apple has an implementation of Diffie-Hellman in iOS as part of Secure Transport. Here is the Secure Transport Reference

I'm posting this answer on a very old question because it's still relevant and other questions might link to this one. Improving this question's completeness may help answer newer questions.