(Objective-C) Generate RSA Public/Private Key

Objective-C example code showing how to generate an RSA public/private key.

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#import <CkoRsa.h>
#import <NSString.h>

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

CkoRsa *rsa = [[CkoRsa alloc] init];

// Generate a 1024-bit key.  Chilkat RSA supports
// key sizes ranging from 512 bits to 4096 bits.
// Note: Starting in Chilkat v9.5.0.49, RSA key sizes can be up to 8192 bits.
// It takes a considerable amount of time and processing power to generate
// an 8192-bit key.
BOOL success = [rsa GenerateKey: [NSNumber numberWithInt: 1024]];
if (success != YES) {
    NSLog(@"%@",rsa.LastErrorText);
    return;
}

// Keys are exported in XML format:
NSString *publicKey = [rsa ExportPublicKey];
NSLog(@"%@",publicKey);

NSString *privateKey = [rsa ExportPrivateKey];
NSLog(@"%@",privateKey);