snej@0: //
snej@0: //  MYKey-iPhone.m
snej@0: //  MYCrypto-iPhone
snej@0: //
snej@0: //  Created by Jens Alfke on 4/4/09.
snej@0: //  Copyright 2009 Jens Alfke. All rights reserved.
snej@0: //
snej@0: 
snej@0: 
snej@0: #import "MYCrypto_Private.h"
snej@0: 
snej@0: #if USE_IPHONE_API
snej@0: 
snej@0: #import "MYDigest.h"
snej@0: #import "MYErrorUtils.h"
snej@0: 
snej@0: 
snej@0: #pragma mark -
snej@0: @implementation MYKey
snej@0: 
snej@0: 
snej@0: - (id) initWithKeyRef: (SecKeyRef)key {
snej@1:     return [super initWithKeychainItemRef: (SecKeychainItemRef)key];
snej@0: }
snej@0: 
snej@0: 
snej@0: - (id) _initWithKeyData: (NSData*)data
snej@0:             forKeychain: (SecKeychainRef)keychain
snej@0: {
snej@0:     NSDictionary *info = $dict( {(id)kSecClass, (id)kSecClassKey},
snej@1:                                 {(id)kSecAttrKeyClass, (id)self.keyType},
snej@0:                                 {(id)kSecValueData, data},
snej@0:                                 {(id)kSecAttrIsPermanent, $object(keychain!=nil)},
snej@0:                                 {(id)kSecReturnRef, $true} );
snej@0:     SecKeyRef key;
snej@0:     if (!check(SecItemAdd((CFDictionaryRef)info, (CFTypeRef*)&key), @"SecItemAdd"))
snej@0:         return nil;
snej@0:     else
snej@0:         return [self initWithKeyRef: (SecKeyRef)key];
snej@0: }
snej@0: 
snej@0: - (id) initWithKeyData: (NSData*)data {
snej@0:     return [self _initWithKeyData: data forKeychain: nil];
snej@0: }
snej@0: 
snej@0: 
snej@0: - (SecExternalItemType) keyType {
snej@0:     AssertAbstractMethod();
snej@0: }
snej@0: 
snej@0: 
snej@0: - (NSData*) keyData {
snej@0:     NSDictionary *info = $dict( {(id)kSecClass, (id)kSecClassKey},
snej@1:                                 {(id)kSecAttrKeyClass, (id)self.keyType},
snej@1:                                 {(id)kSecMatchItemList, $array((id)self.keyRef)},
snej@0:                                 {(id)kSecReturnData, $true} );
snej@0:     CFDataRef data;
snej@0:     if (!check(SecItemCopyMatching((CFDictionaryRef)info, (CFTypeRef*)&data), @"SecItemCopyMatching"))
snej@0:         return nil;
snej@0:     else
snej@0:         return [(id)CFMakeCollectable(data) autorelease];
snej@0: }
snej@0: 
snej@0: 
snej@1: - (SecKeyRef) keyRef {
snej@1:     return (SecKeyRef) self.keychainItemRef;
snej@0: }
snej@0: 
snej@0: 
snej@0: - (id) _attribute: (CFTypeRef)attribute {
snej@0:     NSDictionary *info = $dict( {(id)kSecClass, (id)kSecClassKey},
snej@1:                                 {(id)kSecAttrKeyClass, (id)self.keyType},
snej@1:                                 {(id)kSecMatchItemList, $array((id)self.keyRef)},
snej@0:                                 {(id)kSecReturnAttributes, $true} );
snej@0:     CFDictionaryRef attrs;
snej@0:     if (!check(SecItemCopyMatching((CFDictionaryRef)info, (CFTypeRef*)&attrs), @"SecItemCopyMatching"))
snej@0:         return nil;
snej@0:     CFTypeRef rawValue = CFDictionaryGetValue(attrs,attribute);
snej@0:     id value = rawValue ?[[(id)CFMakeCollectable(rawValue) retain] autorelease] :nil;
snej@0:     CFRelease(attrs);
snej@0:     return value;
snej@0: }
snej@0: 
snej@0: - (BOOL) setValue: (NSString*)value ofAttribute: (SecKeychainAttrType)attribute {
snej@0:     if (!value)
snej@0:         value = (id)[NSNull null];
snej@0:     NSDictionary *query = $dict( {(id)kSecClass, (id)kSecClassKey},
snej@1:                                 {(id)kSecAttrKeyClass, (id)self.keyType},
snej@0:                                 {(id)kSecMatchItemList, self._itemList} );
snej@0:     NSDictionary *attrs = $dict( {(id)attribute, value} );
snej@0:     return check(SecItemUpdate((CFDictionaryRef)query, (CFDictionaryRef)attrs), @"SecItemUpdate");
snej@0: }
snej@0: 
snej@0: 
snej@0: - (NSString*) name {
snej@0:     return [self _attribute: kSecAttrLabel];
snej@0: }
snej@0: 
snej@0: - (void) setName: (NSString*)name {
snej@0:     [self setValue: name ofAttribute: kSecAttrLabel];
snej@0: }
snej@0: 
snej@0: - (NSString*) alias {
snej@0:     return [self _attribute: kSecAttrApplicationTag];
snej@0: }
snej@0: 
snej@0: - (void) setAlias: (NSString*)alias {
snej@0:     [self setValue: alias ofAttribute: kSecAttrApplicationTag];
snej@0: }
snej@0: 
snej@0: 
snej@0: @end
snej@0: 
snej@0: 
snej@0: #endif USE_IPHONE_API
snej@0: 
snej@0: 
snej@0: 
snej@0: /*
snej@0:  Copyright (c) 2009, Jens Alfke <jens@mooseyard.com>. All rights reserved.
snej@0:  
snej@0:  Redistribution and use in source and binary forms, with or without modification, are permitted
snej@0:  provided that the following conditions are met:
snej@0:  
snej@0:  * Redistributions of source code must retain the above copyright notice, this list of conditions
snej@0:  and the following disclaimer.
snej@0:  * Redistributions in binary form must reproduce the above copyright notice, this list of conditions
snej@0:  and the following disclaimer in the documentation and/or other materials provided with the
snej@0:  distribution.
snej@0:  
snej@0:  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
snej@0:  IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 
snej@0:  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRI-
snej@0:  BUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
snej@0:  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
snej@0:   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
snej@0:  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 
snej@0:  THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
snej@0:  */