/*

 File: KeyGeneration.m

 Abstract: Provides the key generation UI as well as the hooks into the 

 SecKeyWrapper to generate the keys.

 Version: 1.2

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 */

#import "KeyGeneration.h"

#import "AppDelegate.h"

#import "SecKeyWrapper.h"

#import "CryptoServer.h"

#import "CryptoCommon.h"

@implementation KeyGeneration

@synthesize spinner, label, server;

- (void)viewDidLoad {

    self.view.backgroundColor = [UIColor groupTableViewBackgroundColor];

}

- (IBAction)startGeneratingKeys {

    [server teardown];

    // start generation operation

    [spinner startAnimating];

    spinner.hidden = NO;

    label.hidden = NO;

    AppDelegate * appDelegate = (AppDelegate *)([UIApplication sharedApplication].delegate);

    NSInvocationOperation * genOp = [[NSInvocationOperation alloc] initWithTarget:self selector:@selector(generateKeyPairOperation) object:nil];

    [appDelegate.cryptoQueue addOperation:genOp];

    [genOp release];

}

- (void)generateKeyPairOperation {

    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

    // Generate the asymmetric key (public and private)

    [[SecKeyWrapper sharedWrapper] generateKeyPair:kAsymmetricSecKeyPairModulusSize];

    [[SecKeyWrapper sharedWrapper] generateSymmetricKey];

    [self performSelectorOnMainThread:@selector(generateKeyPairCompleted) withObject:nil waitUntilDone:NO];

    [pool release];

}

- (void)generateKeyPairCompleted {

    [server run];

    [spinner stopAnimating];

    spinner.hidden = YES;

    label.hidden = YES;

    [self dismissModalViewControllerAnimated:YES];

}

- (IBAction)cancelKeyGeneration {

    [self.navigationController dismissModalViewControllerAnimated:YES];

}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {

    return (interfaceOrientation == UIInterfaceOrientationPortrait);

}

- (void)dealloc {

    [spinner release];

    [label release];

    [server release];

    [super dealloc];

}

@end