//

 //  MYCertificate-iPhone.m

 //  MYCrypto-iPhone

 //

 //  Created by Jens Alfke on 3/30/09.

 //  Copyright 2009 Jens Alfke. All rights reserved.

 //

 #import "MYCertificate.h"

 #import "MYCrypto_Private.h"

 #if MYCRYPTO_USE_IPHONE_API

 @implementation MYCertificate

 + (MYCertificate*) certificateWithCertificateRef: (SecCertificateRef)certificateRef {

     return [[[self alloc] initWithCertificateRef: certificateRef] autorelease];

 }

 /** Creates a MYCertificate object for an existing Keychain certificate reference. */

 - (id) initWithCertificateRef: (SecCertificateRef)certificateRef {

     self = [super initWithKeychainItemRef: (SecKeychainItemRef)certificateRef];

     if (self) {

         _certificateRef = certificateRef;     // superclass has already CFRetained it

     }

     return self;

 }

 /** Creates a MYCertificate object from exported key data, but does not add it to any keychain. */

 - (id) initWithCertificateData: (NSData*)data

 {

     SecCertificateRef certificateRef = SecCertificateCreateWithData(NULL, (CFDataRef)data);

     self = [self initWithCertificateRef: certificateRef];

     CFRelease(certificateRef);

     return self;

 }

 - (BOOL)isEqualToCertificate:(MYCertificate*)cert {

     return [self isEqual: cert] || [self.certificateData isEqual: cert.certificateData];

 }

 @synthesize certificateRef=_certificateRef;

 - (NSData*) certificateData {

     CFDataRef data = SecCertificateCopyData(_certificateRef);

     return data ?[(id)CFMakeCollectable(data) autorelease] :nil;

 }

 - (MYPublicKey*) publicKey {

     SecTrustRef trust = NULL;

     SecPolicyRef policy = SecPolicyCreateBasicX509();

     OSStatus err = SecTrustCreateWithCertificates((CFArrayRef)$array((id)_certificateRef),

                                                   policy,

                                                   &trust);

     CFRelease(policy);

     if (!check(err,@"SecTrustCreateWithCertificates"))

         return nil;

     MYPublicKey *key = nil;

     SecKeyRef keyRef = SecTrustCopyPublicKey(trust);

     if (keyRef) {

         key = [[[MYPublicKey alloc] initWithKeyRef: keyRef] autorelease];

         CFRelease(keyRef);

     }

     CFRelease(trust);

     return key;

 }

 - (NSString*) commonName {

     CFStringRef name = SecCertificateCopySubjectSummary(_certificateRef);

     return name ?[(id)CFMakeCollectable(name) autorelease] :nil;

 }

 @end

 #endif MYCRYPTO_USE_IPHONE_API