Objective C Generate Rsa Key

 
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Objective-C example code showing how to generate an RSA public/private key pair and export to PEM files. Chilkat Objective-C Library Downloads MAC OS X (Cocoa) Libs. May 16, 2013  I had a bit of a fun time working on a simple key exchange mechanism between C# and Objective-C using OpenSSL. My goal was on the Objective-C side to generate a public/private key pair, and pass the public key to C# in a way that I could use it to encrypt small amounts of data (like a symmetric key). Sep 29, 2015  Doing RSA encryption and decryption with Objective-C on iOS - ideawu/Objective-C-RSA. If you have the same qustion as mine: iOS Objective-C RSA encrypt with only public key.

Objective C Generate Rsa Key In Packet Tracer

This example is to perform RSA encryption & decryption in iOS (Objective-C). I wrote a blog about encryption and decryption. Now I create this example is improvement on that (In my blog post: Encryption is done totally in Objective-C; Decryption cannot support chunks decryption but written in C), This example shows both encryption & decryption in C and support for longer string.

Setup

1. Download openssl library

The library can be found here

2. Include library to project

Just drag the library (with include & lib folders only) to the project. Go to project targets -> Build Settings:

  • Look for Header Search Paths, add '${SRCROOT}/Libraries/openssl/include' for example
  • Look for Library Search Paths, add '${SRCROOT}/Libraries/openssl/lib' for example

Generate Key pair

Generate private key

Generate public key from private key

How to use

Objective C Generate Rsa Keys

Include RSA

Generate Rsa Public Key

Get the path of your private key (make sure is in **Copy Bundle Resources)

![alt text] (https://raw.github.com/jslim89/RSA-Example/master/screenshots/resource_bundle.png 'Copy Bundle Resources')

Decrypt using the function js_private_decrypt

Generate Rsa Key Pair

(NOTE: Encryption did the same way)

Objective C Generate Rsa Key Generator

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