If it's a shared keychain then it's shared. All the data in it will be accessible to any other app which can access the keychain.
You could:
- Create 2 keychain. One shared and one private. Sharable stuff goes in shared, private stuff goes in private.
- Encrypt data you won't want to to share with others.
I'd probably go with the first. IMHO, KeychainItemWrapper
is pretty poor as grab and use code. It's old code which provides little in the way of functionality. I'm attaching a quick and dirty bit of code I wrote to play with and test out using the key chain functionality without KeychainItemWrapper
. In this case I was playing with items both in "app" and "Security" to create some shared and non-shared items. You can't really tell that here since it's just some test code and sharing is under Targets->Capabilities->Keychain Sharing.
- (void)viewDidLoad {
[super viewDidLoad];
// [self removeKeychainItem];
// [self addKeychainItem];
[self searchForKeychainItems];
}
- (void)searchForKeychainItems {
[self log:@"\n\n EXISTING KEYCHAIN ITEM(S)"];
NSDictionary *query = @{(__bridge id)kSecClass: (__bridge id)kSecClassGenericPassword,
(__bridge id)kSecMatchLimit: (__bridge id)kSecMatchLimitAll,
(__bridge id)kSecReturnData: (__bridge id)kCFBooleanTrue, // returns password
(__bridge id)kSecReturnAttributes: (__bridge id)kCFBooleanTrue, // returns rest of data
// (__bridge id)kSecAttrAccessGroup: @"AAAAAAAAAA.com.foo.Security"
// (__bridge id)kSecAttrAccessGroup: @"AAAAAAAAAA.com.foo.app"
};
OSStatus resultCode;
CFArrayRef *searchResults = nil;
resultCode = SecItemCopyMatching((__bridge CFDictionaryRef)query, (CFTypeRef *)&searchResults);
NSArray *foo = CFBridgingRelease(searchResults);
[self log:[NSString stringWithFormat:@"Search result code: %d", (int)resultCode]];
[self log:[NSString stringWithFormat:@"Search Results: %@", foo]];
NSDictionary *keychainItem = foo[0];
NSString *password = [[NSString alloc] initWithData:[keychainItem objectForKey:(__bridge id)kSecValueData] encoding:NSUTF8StringEncoding];
[self log:[NSString stringWithFormat:@"password is `%@`", password]];
}
- (void)addKeychainItem {
[self log:@"\n\n ADDING KEYCHAIN ITEM"];
NSDictionary *genericDataDictionary = @{@"authState": @"1",
@"lastAuthDate": @"2/11/2014",
@"otherCrap": @"poo"};
NSData *encodedGenericData = [NSKeyedArchiver archivedDataWithRootObject:genericDataDictionary];
NSData *encodedPassword = [@"secret" dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary *query = @{(__bridge id)kSecClass: (__bridge id)kSecClassGenericPassword,
(__bridge id)kSecAttrCreator: @"MyCom",
(__bridge id)kSecAttrComment: @"keychain tests",
(__bridge id)kSecAttrService: @"Credentials",
(__bridge id)kSecAttrAccount: @"username",
(__bridge id)kSecValueData: encodedPassword,
(__bridge id)kSecAttrGeneric: encodedGenericData,
(__bridge id)kSecAttrAccessGroup: @"AAAAAAAAAA.com.foo.Security"
};
OSStatus result;
result = SecItemAdd((__bridge CFDictionaryRef)query, NULL);
NSLog(@"Add status code: %d", (int)result);
}
- (void)removeKeychainItem {
[self log:@"\n\n REMOVING KEYCHAIN ITEM"];
NSDictionary *query = @{(__bridge id)kSecClass: (__bridge id)kSecClassGenericPassword,
// (__bridge id)kSecAttrCreator: @"MyCom",
// (__bridge id)kSecAttrService: @"Credentials",
(__bridge id)kSecAttrComment: @"New Keychain standards Test Item",
// (__bridge id)kSecAttrAccount: @"username",
// (__bridge id)kSecValueData: [@"password" dataUsingEncoding:NSUTF8StringEncoding],
// (__bridge id)kSecAttrGeneric: encodedGenericData
// (__bridge id)kSecAttrAccessGroup: @"AAAAAAAAAA.com.foo.Security"
};
OSStatus resultsCode;
resultsCode = SecItemDelete((__bridge CFDictionaryRef)query);
NSLog(@"Delete results code: %d", (int)resultsCode);
}
- (void)log:(NSString *)text {
self.textView.text = [[self.textView.text stringByAppendingString:text] stringByAppendingString:@"\n"];
}