├── LxKeychainDemo ├── LxKeychainDemo │ ├── ViewController.h │ ├── AppDelegate.m │ ├── AppDelegate.h │ ├── main.m │ ├── LxKeychainDemo.entitlements │ ├── Images.xcassets │ │ └── AppIcon.appiconset │ │ │ └── Contents.json │ ├── Base.lproj │ │ ├── Main.storyboard │ │ └── LaunchScreen.xib │ ├── Info.plist │ └── ViewController.m └── LxKeychainDemo.xcodeproj │ ├── project.xcworkspace │ └── contents.xcworkspacedata │ └── project.pbxproj ├── .gitignore ├── LxKeychain.podspec ├── README.md ├── LxKeychain ├── LxKeychain.h └── LxKeychain.m └── LICENSE /LxKeychainDemo/LxKeychainDemo/ViewController.h: -------------------------------------------------------------------------------- 1 | // 2 | // ViewController.h 3 | // LxKeychainDemo 4 | // 5 | 6 | #import 7 | 8 | @interface ViewController : UIViewController 9 | 10 | 11 | @end 12 | 13 | -------------------------------------------------------------------------------- /LxKeychainDemo/LxKeychainDemo/AppDelegate.m: -------------------------------------------------------------------------------- 1 | // 2 | // AppDelegate.m 3 | // LxKeychainDemo 4 | // 5 | 6 | #import "AppDelegate.h" 7 | 8 | @interface AppDelegate () 9 | 10 | @end 11 | 12 | @implementation AppDelegate 13 | 14 | @end 15 | -------------------------------------------------------------------------------- /LxKeychainDemo/LxKeychainDemo.xcodeproj/project.xcworkspace/contents.xcworkspacedata: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /LxKeychainDemo/LxKeychainDemo/AppDelegate.h: -------------------------------------------------------------------------------- 1 | // 2 | // AppDelegate.h 3 | // LxKeychainDemo 4 | // 5 | 6 | #import 7 | 8 | @interface AppDelegate : UIResponder 9 | 10 | @property (strong, nonatomic) UIWindow *window; 11 | 12 | 13 | @end 14 | 15 | -------------------------------------------------------------------------------- /LxKeychainDemo/LxKeychainDemo/main.m: -------------------------------------------------------------------------------- 1 | // 2 | // main.m 3 | // LxKeychainDemo 4 | // 5 | 6 | #import 7 | #import "AppDelegate.h" 8 | 9 | int main(int argc, char * argv[]) { 10 | @autoreleasepool { 11 | return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class])); 12 | } 13 | } 14 | -------------------------------------------------------------------------------- /LxKeychainDemo/LxKeychainDemo/LxKeychainDemo.entitlements: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | com.apple.security.application-groups 6 | 7 | keychain-access-groups 8 | 9 | $(AppIdentifierPrefix)com.etiantian.LxKeychainDemo 10 | 11 | 12 | 13 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Xcode 2 | # 3 | .DS_Store 4 | build/ 5 | *.pbxuser 6 | !default.pbxuser 7 | *.mode1v3 8 | !default.mode1v3 9 | *.mode2v3 10 | !default.mode2v3 11 | *.perspectivev3 12 | !default.perspectivev3 13 | xcuserdata 14 | *.xccheckout 15 | *.moved-aside 16 | DerivedData 17 | *.hmap 18 | *.ipa 19 | *.xcuserstate 20 | 21 | # CocoaPods 22 | # 23 | # We recommend against adding the Pods directory to your .gitignore. However 24 | # you should judge for yourself, the pros and cons are mentioned at: 25 | # http://guides.cocoapods.org/using/using-cocoapods.html#should-i-ignore-the-pods-directory-in-source-control 26 | # 27 | #Pods/ 28 | -------------------------------------------------------------------------------- /LxKeychain.podspec: -------------------------------------------------------------------------------- 1 | Pod::Spec.new do |s| 2 | s.name = "LxKeychain" 3 | s.version = "1.0.0" 4 | s.summary = "Manage your username and password for iOS and OS X platform. Highly encryption and won't be lose even you uninstall your app." 5 | 6 | s.homepage = "https://github.com/DeveloperLx/LxKeychain" 7 | s.license = 'Apache' 8 | s.authors = { 'DeveloperLx' => 'developerlx@yeah.com' } 9 | s.platform = :ios, "6.0" 10 | s.ios.deployment_target = "6.0" 11 | s.source = { :git => "https://github.com/DeveloperLx/LxKeychain.git", :tag => s.version} 12 | s.source_files = 'LxKeychain/LxKeychain.*' 13 | s.requires_arc = true 14 | s.frameworks = 'Foundation', 'CoreGraphics', 'Security', 'UIKit' 15 | end 16 | -------------------------------------------------------------------------------- /LxKeychainDemo/LxKeychainDemo/Images.xcassets/AppIcon.appiconset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "iphone", 5 | "size" : "29x29", 6 | "scale" : "2x" 7 | }, 8 | { 9 | "idiom" : "iphone", 10 | "size" : "29x29", 11 | "scale" : "3x" 12 | }, 13 | { 14 | "idiom" : "iphone", 15 | "size" : "40x40", 16 | "scale" : "2x" 17 | }, 18 | { 19 | "idiom" : "iphone", 20 | "size" : "40x40", 21 | "scale" : "3x" 22 | }, 23 | { 24 | "idiom" : "iphone", 25 | "size" : "60x60", 26 | "scale" : "2x" 27 | }, 28 | { 29 | "idiom" : "iphone", 30 | "size" : "60x60", 31 | "scale" : "3x" 32 | }, 33 | { 34 | "idiom" : "ipad", 35 | "size" : "29x29", 36 | "scale" : "1x" 37 | }, 38 | { 39 | "idiom" : "ipad", 40 | "size" : "29x29", 41 | "scale" : "2x" 42 | }, 43 | { 44 | "idiom" : "ipad", 45 | "size" : "40x40", 46 | "scale" : "1x" 47 | }, 48 | { 49 | "idiom" : "ipad", 50 | "size" : "40x40", 51 | "scale" : "2x" 52 | }, 53 | { 54 | "idiom" : "ipad", 55 | "size" : "76x76", 56 | "scale" : "1x" 57 | }, 58 | { 59 | "idiom" : "ipad", 60 | "size" : "76x76", 61 | "scale" : "2x" 62 | } 63 | ], 64 | "info" : { 65 | "version" : 1, 66 | "author" : "xcode" 67 | } 68 | } -------------------------------------------------------------------------------- /LxKeychainDemo/LxKeychainDemo/Base.lproj/Main.storyboard: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | -------------------------------------------------------------------------------- /LxKeychainDemo/LxKeychainDemo/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | en 7 | CFBundleExecutable 8 | $(EXECUTABLE_NAME) 9 | CFBundleIdentifier 10 | com.etiantian.$(PRODUCT_NAME:rfc1034identifier) 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundleName 14 | $(PRODUCT_NAME) 15 | CFBundlePackageType 16 | APPL 17 | CFBundleShortVersionString 18 | 1.0 19 | CFBundleSignature 20 | ???? 21 | CFBundleVersion 22 | 1 23 | LSRequiresIPhoneOS 24 | 25 | UILaunchStoryboardName 26 | LaunchScreen 27 | UIMainStoryboardFile 28 | Main 29 | UIRequiredDeviceCapabilities 30 | 31 | armv7 32 | 33 | UISupportedInterfaceOrientations 34 | 35 | UIInterfaceOrientationPortrait 36 | UIInterfaceOrientationLandscapeLeft 37 | UIInterfaceOrientationLandscapeRight 38 | 39 | UISupportedInterfaceOrientations~ipad 40 | 41 | UIInterfaceOrientationPortrait 42 | UIInterfaceOrientationPortraitUpsideDown 43 | UIInterfaceOrientationLandscapeLeft 44 | UIInterfaceOrientationLandscapeRight 45 | 46 | 47 | 48 | -------------------------------------------------------------------------------- /LxKeychainDemo/LxKeychainDemo/ViewController.m: -------------------------------------------------------------------------------- 1 | // 2 | // ViewController.m 3 | // LxKeychainDemo 4 | // 5 | 6 | #import "ViewController.h" 7 | #import "LxKeychain.h" 8 | 9 | @interface ViewController () 10 | 11 | @end 12 | 13 | @implementation ViewController 14 | 15 | - (void)viewDidLoad { 16 | [super viewDidLoad]; 17 | 18 | NSLog(@"savedUsernameArray = %@", [LxKeychain savedUsernameArray]); // 19 | 20 | [LxKeychain insertOrUpdatePairsOfUsername:@"username1" password:@"password1"]; 21 | [LxKeychain insertOrUpdatePairsOfUsername:@"username2" password:@"password2"]; 22 | [LxKeychain insertOrUpdatePairsOfUsername:@"username3" password:@"password3"]; 23 | [LxKeychain insertOrUpdatePairsOfUsername:@"username1" password:@"password4"]; 24 | [LxKeychain cleanPasswordForUsername:@"username2"]; 25 | [LxKeychain deletePairsByUsername:@"username3"]; 26 | NSLog(@"savedUsernameArray = %@", [LxKeychain savedUsernameArray]); // 27 | NSLog(@"username1 password: %@", [LxKeychain passwordForUsername:@"username1"]); // 28 | NSLog(@"username1's password %@ password1", [LxKeychain password:@"password1" isCorrectToUsername:@"username1"]?@"is":@"is not"); // 29 | NSLog(@"username1's password %@ password4", [LxKeychain password:@"password4" isCorrectToUsername:@"username1"]?@"is":@"is not"); // 30 | NSLog(@"lastestUpdatedUsername = %@", [LxKeychain lastestUpdatedUsername]); // 31 | 32 | static NSString * const YourSaveKey = @"Your save key!"; 33 | NSLog(@"Your saved string: %@", [LxKeychain fetchDataOfService:YourSaveKey]); // 34 | [LxKeychain saveData:@"Here is What you want to save forever!" forService:YourSaveKey]; 35 | 36 | NSLog(@"Your LxKeychain device unique identifer is %@", [LxKeychain deviceUniqueIdentifer]); // 37 | NSLog(@"Your keychain access group is %@", [LxKeychain accessGroupName]); // 38 | } 39 | 40 | @end 41 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # LxKeychain 2 | Manage your username and password for iOS and OS X platform. Highly encryption and won't be lose even you uninstall your app. 3 | Installation 4 | ------------ 5 | You only need drag LxKeychain.h and LxKeychain.m to your project. 6 | Podfile 7 | ------------ 8 | pod 'LxKeychain', '~> 1.0.0' 9 | Support 10 | ------------ 11 | Minimum support iOS version: iOS 6.0 12 | Usage 13 | -------------- 14 | 15 | NSLog(@"savedUsernameArray = %@", [LxKeychain savedUsernameArray]); // 16 | 17 | [LxKeychain insertOrUpdatePairsOfUsername:@"username1" password:@"password1"]; 18 | [LxKeychain insertOrUpdatePairsOfUsername:@"username2" password:@"password2"]; 19 | [LxKeychain insertOrUpdatePairsOfUsername:@"username3" password:@"password3"]; 20 | [LxKeychain insertOrUpdatePairsOfUsername:@"username1" password:@"password4"]; 21 | [LxKeychain cleanPasswordForUsername:@"username2"]; 22 | [LxKeychain deletePairsByUsername:@"username3"]; 23 | NSLog(@"savedUsernameArray = %@", [LxKeychain savedUsernameArray]); // 24 | NSLog(@"username1 password: %@", [LxKeychain passwordForUsername:@"username1"]); // 25 | NSLog(@"username1's password %@ password1", [LxKeychain password:@"password1" isCorrectToUsername:@"username1"]?@"is":@"is not"); // 26 | NSLog(@"username1's password %@ password4", [LxKeychain password:@"password4" isCorrectToUsername:@"username1"]?@"is":@"is not"); // 27 | NSLog(@"lastestUpdatedUsername = %@", [LxKeychain lastestUpdatedUsername]); // 28 | 29 | static NSString * const YourSaveKey = @"Your save key!"; 30 | NSLog(@"Your saved string: %@", [LxKeychain fetchDataOfService:YourSaveKey]); // 31 | [LxKeychain saveData:@"Here is What you want to save forever!" forService:YourSaveKey]; 32 | 33 | NSLog(@"Your LxKeychain device unique identifer is %@", [LxKeychain deviceUniqueIdentifer]); // 34 | NSLog(@"Your keychain access group is %@", [LxKeychain accessGroupName]); // 35 | 36 | // You can try to run once, then uninstall your app, then build and run it again. You will see shocking phenomena！ 37 | License 38 | ----------- 39 | LxKeychain is available under the Apache License 2.0. See the LICENSE file for more info. 40 | -------------------------------------------------------------------------------- /LxKeychain/LxKeychain.h: -------------------------------------------------------------------------------- 1 | // 2 | // DeveloperLx 3 | // LxKeychain.h 4 | // 5 | 6 | /* -------------------- OSStatus probably value -------------------- 7 | errSecSuccess = 0, No error. 8 | errSecUnimplemented = -4, Function or operation not implemented. 9 | errSecIO = -36, I/O error (bummers) 10 | errSecOpWr = -49, file already open with with write permission 11 | errSecParam = -50, One or more parameters passed to a function where not valid. 12 | errSecAllocate = -108, Failed to allocate memory. 13 | errSecUserCanceled = -128, User canceled the operation. 14 | errSecBadReq = -909, Bad parameter or invalid state for operation. 15 | errSecInternalComponent = -2070, 16 | errSecNotAvailable = -25291, No keychain is available. You may need to restart your computer. 17 | errSecDuplicateItem = -25299, The specified item already exists in the keychain. 18 | errSecItemNotFound = -25300, The specified item could not be found in the keychain. 19 | errSecInteractionNotAllowed = -25308, User interaction is not allowed. 20 | errSecDecode = -26275, Unable to decode the provided data. 21 | errSecAuthFailed = -25293, The user name or passphrase you entered is not correct. 22 | */ 23 | 24 | #import 25 | #import 26 | 27 | #define LX_UNAVAILABLE(msg) __attribute__((unavailable(msg))) 28 | 29 | typedef NSString * (^ EncrytionBlock)(NSString *); 30 | /* 31 | * Can be customed by yourself. Default use md5. 32 | */ 33 | static EncrytionBlock LxKeychainEncryptionBlock = ^(NSString * string) { 34 | const char * cPlaintext = string.UTF8String; 35 | unsigned char result[CC_MD5_DIGEST_LENGTH]; 36 | CC_MD5(cPlaintext, (CC_LONG)strlen(cPlaintext), result); 37 | NSMutableString * hash = [NSMutableString string]; 38 | for (int i = 0; i < 16; i++) 39 | [hash appendFormat:@"%02X", result[i]]; 40 | return [NSString stringWithString:hash.lowercaseString]; 41 | }; 42 | 43 | @interface LxKeychain : NSObject 44 | 45 | + (OSStatus)insertOrUpdatePairsOfUsername:(NSString *)username password:(NSString *)password; 46 | + (OSStatus)cleanPasswordForUsername:(NSString *)username; 47 | + (OSStatus)deletePairsByUsername:(NSString *)username; 48 | + (NSString *)passwordForUsername:(NSString *)username; 49 | + (BOOL)password:(NSString *)password isCorrectToUsername:(NSString *)username; 50 | + (NSArray *)savedUsernameArray; 51 | + (NSString *)lastestUpdatedUsername; 52 | 53 | + (OSStatus)saveData:(id)data forService:(NSString *)service; 54 | + (id)fetchDataOfService:(NSString *)service; 55 | + (OSStatus)deleteService:(NSString *)service; 56 | 57 | + (NSString *)accessGroupName; 58 | 59 | #if TARGET_OS_IOS 60 | 61 | + (NSString *)deviceUniqueIdentifer; 62 | 63 | #endif 64 | 65 | #pragma mark - Unavailable 66 | 67 | - (instancetype)init LX_UNAVAILABLE("LxKeychain cannot be initialized!"); 68 | - (instancetype)initWithCoder:(NSCoder *)aDecoder LX_UNAVAILABLE("LxKeychain cannot be initialized!"); 69 | 70 | @end 71 | -------------------------------------------------------------------------------- /LxKeychainDemo/LxKeychainDemo/Base.lproj/LaunchScreen.xib: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | -------------------------------------------------------------------------------- /LxKeychain/LxKeychain.m: -------------------------------------------------------------------------------- 1 | // 2 | // DeveloperLx 3 | // LxKeychain.m 4 | // 5 | 6 | #import "LxKeychain.h" 7 | #import 8 | 9 | #if TARGET_OS_IOS 10 | #import 11 | static NSString * const LX_DEVICE_UNIQUE_IDENTIFIER = @"LX_DEVICE_UNIQUE_IDENTIFIER"; 12 | #endif 13 | 14 | static NSString * const LX_USERNAME_ARRAY_SERVICE = @"LX_USERNAME_ARRAY_SERVICE"; 15 | static NSString * const LX_USERNAME_KEY = @"LX_USERNAME_KEY"; 16 | static NSString * const LX_PASSWORD_KEY = @"LX_PASSWORD_KEY"; 17 | 18 | @implementation LxKeychain 19 | 20 | + (NSString *)generateServiceByUsername:(NSString *)username 21 | { 22 | return LxKeychainEncryptionBlock(username); 23 | } 24 | 25 | + (OSStatus)insertOrUpdatePairsOfUsername:(NSString *)username password:(NSString *)password 26 | { 27 | NSString * service = [self generateServiceByUsername:username]; 28 | OSStatus status = noErr; 29 | status = [self deleteService:service]; 30 | status = [self saveData:password forService:service]; 31 | 32 | NSString * usernameArrayService = LxKeychainEncryptionBlock(LX_USERNAME_ARRAY_SERVICE); 33 | NSMutableArray * savedUsernameArray = [NSMutableArray arrayWithArray:[self savedUsernameArray]]; 34 | if ([savedUsernameArray containsObject:username]) { 35 | [savedUsernameArray removeObject:username]; 36 | } 37 | [savedUsernameArray addObject:username]; 38 | status = [self deleteService:usernameArrayService]; 39 | status = [self saveData:[NSArray arrayWithArray:savedUsernameArray] forService:usernameArrayService]; 40 | 41 | return status; 42 | } 43 | 44 | + (OSStatus)cleanPasswordForUsername:(NSString *)username 45 | { 46 | NSString * service = [self generateServiceByUsername:username]; 47 | OSStatus status = noErr; 48 | status = [self deleteService:service]; 49 | status = [self saveData:nil forService:service]; 50 | return status; 51 | } 52 | 53 | + (OSStatus)deletePairsByUsername:(NSString *)username 54 | { 55 | NSString * service = [self generateServiceByUsername:username]; 56 | OSStatus status = noErr; 57 | status = [self deleteService:service]; 58 | 59 | NSString * usernameArrayService = LxKeychainEncryptionBlock(LX_USERNAME_ARRAY_SERVICE); 60 | NSMutableArray * savedUsernameArray = [NSMutableArray arrayWithArray:[self savedUsernameArray]]; 61 | if ([savedUsernameArray containsObject:username]) { 62 | [savedUsernameArray removeObject:username]; 63 | } 64 | status = [self deleteService:usernameArrayService]; 65 | status = [self saveData:[NSArray arrayWithArray:savedUsernameArray] forService:usernameArrayService]; 66 | 67 | return status; 68 | } 69 | 70 | + (NSString *)passwordForUsername:(NSString *)username 71 | { 72 | NSString * service = [self generateServiceByUsername:username]; 73 | return (NSString *)[self fetchDataOfService:service]; 74 | } 75 | 76 | + (BOOL)password:(NSString *)password isCorrectToUsername:(NSString *)username 77 | { 78 | if (password.length == 0) { 79 | return NO; 80 | } 81 | else { 82 | return [password isEqualToString:[self passwordForUsername:username]]; 83 | } 84 | } 85 | 86 | + (NSArray *)savedUsernameArray 87 | { 88 | NSString * usernameArrayService = LxKeychainEncryptionBlock(LX_USERNAME_ARRAY_SERVICE); 89 | return (NSArray *)[self fetchDataOfService:usernameArrayService]; 90 | } 91 | 92 | + (NSString *)lastestUpdatedUsername 93 | { 94 | return (NSString *)([self savedUsernameArray].lastObject); 95 | } 96 | 97 | + (NSMutableDictionary *)generateQueryMutableDictionaryOfService:(NSString *)service 98 | { 99 | return [NSMutableDictionary dictionaryWithObjectsAndKeys: 100 | (__bridge id)kSecClassGenericPassword, (__bridge id)kSecClass, 101 | (__bridge id)kSecAttrAccessibleAfterFirstUnlock, (__bridge id)kSecAttrAccessible, 102 | service, (__bridge id)kSecAttrService, 103 | service, (__bridge id)kSecAttrAccount, 104 | #if !TARGET_IPHONE_SIMULATOR 105 | [self accessGroupName], (__bridge id)kSecAttrAccessGroup, 106 | #endif 107 | nil]; 108 | } 109 | 110 | + (OSStatus)saveData:(id)data forService:(NSString *)service 111 | { 112 | NSAssert([(NSObject *)data conformsToProtocol:@protocol(NSCoding)] || data == nil, @"data must conforms protocol NSCoding or NSSecureCoding!"); // 113 | 114 | NSMutableDictionary * keychainQuery = [self generateQueryMutableDictionaryOfService:service]; 115 | OSStatus status = noErr; 116 | status = SecItemDelete((__bridge CFDictionaryRef)keychainQuery); 117 | 118 | [keychainQuery setValue:[NSKeyedArchiver archivedDataWithRootObject:data] forKey:(__bridge id)kSecValueData]; 119 | CFTypeRef result = 0; 120 | status = SecItemAdd((__bridge CFDictionaryRef)keychainQuery, &result); 121 | 122 | return status; 123 | } 124 | 125 | + (id)fetchDataOfService:(NSString *)service 126 | { 127 | NSMutableDictionary * keychainQuery = [self generateQueryMutableDictionaryOfService:service]; 128 | [keychainQuery setObject:(__bridge id)kCFBooleanTrue forKey:(__bridge id)kSecReturnData]; 129 | [keychainQuery setObject:(__bridge id)kSecMatchLimitOne forKey:(__bridge id)kSecMatchLimit]; 130 | 131 | OSStatus status = noErr; 132 | 133 | CFDataRef archivedData = NULL; 134 | status = SecItemCopyMatching((__bridge CFDictionaryRef)keychainQuery, (CFTypeRef *)&archivedData); 135 | 136 | if (status == noErr) { 137 | id data = nil; 138 | @try { 139 | data = [NSKeyedUnarchiver unarchiveObjectWithData:(__bridge NSData *)archivedData]; 140 | } 141 | @catch (NSException * exception) { 142 | NSLog(@"Unarchive of %@ failed: %@", service, exception); 143 | } 144 | @finally { 145 | if (archivedData) { 146 | CFRelease(archivedData); 147 | } 148 | return data; 149 | } 150 | } 151 | else { 152 | return nil; 153 | } 154 | } 155 | 156 | + (OSStatus)saveString:(NSString *)string forService:(NSString *)service 157 | { 158 | NSMutableDictionary * keychainQuery = [self generateQueryMutableDictionaryOfService:service]; 159 | OSStatus status = noErr; 160 | status = SecItemDelete((__bridge CFDictionaryRef)keychainQuery); 161 | 162 | [keychainQuery setValue:string forKey:(__bridge id)kSecValueData]; 163 | CFTypeRef result = 0; 164 | status = SecItemAdd((__bridge CFDictionaryRef)keychainQuery, &result); 165 | 166 | return status; 167 | } 168 | 169 | + (NSString *)fetchStringOfService:(NSString *)service 170 | { 171 | NSMutableDictionary * keychainQuery = [self generateQueryMutableDictionaryOfService:service]; 172 | [keychainQuery setObject:(__bridge id)kCFBooleanTrue forKey:(__bridge id)kSecReturnData]; 173 | [keychainQuery setObject:(__bridge id)kSecMatchLimitOne forKey:(__bridge id)kSecMatchLimit]; 174 | 175 | OSStatus status = noErr; 176 | 177 | CFDataRef archivedData = NULL; 178 | status = SecItemCopyMatching((__bridge CFDictionaryRef)keychainQuery, (CFTypeRef *)&archivedData); 179 | 180 | if (status == noErr && archivedData) { 181 | 182 | NSString * string = [[NSString alloc]initWithData:(__bridge NSData *)archivedData encoding:NSUTF8StringEncoding]; 183 | CFRelease(archivedData); 184 | return string; 185 | } 186 | else { 187 | return nil; 188 | } 189 | } 190 | 191 | + (OSStatus)deleteService:(NSString *)service 192 | { 193 | NSMutableDictionary * keychainQuery = [self generateQueryMutableDictionaryOfService:service]; 194 | return SecItemDelete((__bridge CFDictionaryRef)keychainQuery); 195 | } 196 | 197 | + (NSString *)accessGroupName 198 | { 199 | NSDictionary *keychainQuery = @{(__bridge id)kSecClass : (__bridge id)kSecClassGenericPassword, 200 | (__bridge id)kSecAttrAccount : @"bundleSeedID", 201 | (__bridge id)kSecAttrService : @"", 202 | (__bridge id)kSecReturnAttributes : (__bridge id)kCFBooleanTrue}; 203 | 204 | CFDictionaryRef result = NULL; 205 | OSStatus status = SecItemCopyMatching((CFDictionaryRef)keychainQuery, (CFTypeRef *)&result); 206 | if (status == errSecItemNotFound) { 207 | status = SecItemAdd((CFDictionaryRef)keychainQuery, (CFTypeRef *)&result); 208 | } 209 | if (status != errSecSuccess) { 210 | return nil; 211 | } 212 | NSString * accessGroup = [(__bridge NSDictionary *)result objectForKey:(__bridge id)kSecAttrAccessGroup]; 213 | CFRelease(result); 214 | return accessGroup; 215 | } 216 | 217 | #if TARGET_OS_IOS 218 | 219 | + (NSString *)deviceUniqueIdentifer 220 | { 221 | NSString * deviceUniqueIdentifer = (NSString *)[self fetchDataOfService:LX_DEVICE_UNIQUE_IDENTIFIER]; 222 | 223 | if (!deviceUniqueIdentifer) { 224 | 225 | deviceUniqueIdentifer = [UIDevice currentDevice].identifierForVendor.UUIDString; 226 | [self saveString:deviceUniqueIdentifer forService:LX_DEVICE_UNIQUE_IDENTIFIER]; 227 | } 228 | 229 | return deviceUniqueIdentifer; 230 | } 231 | 232 | #endif 233 | 234 | @end 235 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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The text should be enclosed in the appropriate 184 | comment syntax for the file format. We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright {yyyy} {name of copyright owner} 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | 203 | -------------------------------------------------------------------------------- /LxKeychainDemo/LxKeychainDemo.xcodeproj/project.pbxproj: -------------------------------------------------------------------------------- 1 | // !$*UTF8*$! 2 | { 3 | archiveVersion = 1; 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