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LAPublicDefines.h

首先是LAPublicDefines.h，從名字上來看是公共宏定義類，里面包含了許多定義好的宏，這些宏會在LAContext.h中用到。

#ifndef LocalAuthentication_LAPublicDefines_h
#define LocalAuthentication_LAPublicDefines_h

// Policies
#define kLAPolicyDeviceOwnerAuthenticationWithBiometrics    1
#define kLAPolicyDeviceOwnerAuthentication                  2

// Options
#define kLAOptionUserFallback                               1
#define kLAOptionAuthenticationReason                       2

// Credential types
#define kLACredentialTypeApplicationPassword                0

// Error codes
#define kLAErrorAuthenticationFailed                       -1
#define kLAErrorUserCancel                                 -2
#define kLAErrorUserFallback                               -3
#define kLAErrorSystemCancel                               -4
#define kLAErrorPasscodeNotSet                             -5
#define kLAErrorTouchIDNotAvailable                        -6
#define kLAErrorTouchIDNotEnrolled                         -7
#define kLAErrorTouchIDLockout                             -8
#define kLAErrorAppCancel                                  -9
#define kLAErrorInvalidContext                            -10
#define kLAErrorNotInteractive                          -1004

#define kLAErrorBiometryNotAvailable                        kLAErrorTouchIDNotAvailable
#define kLAErrorBiometryNotEnrolled                         kLAErrorTouchIDNotEnrolled
#define kLAErrorBiometryLockout                             kLAErrorTouchIDLockout

// Error domain
#define kLAErrorDomain        "com.apple.LocalAuthentication"

#endif

LAContext.h API

#import <Foundation/Foundation.h>
#import <LocalAuthentication/LAPublicDefines.h>

NS_ASSUME_NONNULL_BEGIN

typedef NS_ENUM(NSInteger, LAPolicy) {
    /*指紋（人臉）識別。驗證彈框有兩個按鈕，第一個是取消按鈕，第二個按鈕可以自定義標(biāo)題名稱（輸入密碼）。
     只有在第一次指紋驗證失敗后才會出現(xiàn)第二個按鈕，這種方式下的第二個按鈕功能需要自己定義。前三次指紋驗證失敗，指紋驗證框不再彈出。
     再次重新進入驗證，還有兩次驗證機會，如果還是驗證失敗，TOUCH ID 被鎖住不再繼續(xù)彈出指紋驗證框。以后的每次驗證都將會彈出設(shè)備密碼輸入框直至輸入正確的設(shè)備密碼才能重新使用指紋（人臉）識別*/
    LAPolicyDeviceOwnerAuthenticationWithBiometrics NS_ENUM_AVAILABLE(10_12_2, 8_0) __WATCHOS_AVAILABLE(3.0) __TVOS_AVAILABLE(10.0) = kLAPolicyDeviceOwnerAuthenticationWithBiometrics,
    /*指紋（人臉）識別或系統(tǒng)密碼驗證。
    如果Touch ID （Face ID）可用，且已經(jīng)錄入指紋（人臉），則優(yōu)先調(diào)用指紋（人臉）驗證。其次是調(diào)用系統(tǒng)密碼驗證，如果沒有開啟設(shè)備密碼，則不可以使用這種驗證方式。
    指紋（人臉）識別驗證失敗三次將彈出設(shè)備密碼輸入框，如果不進行密碼輸入，再次進來還可以有兩次機會驗證指紋（人臉），如果都失敗則Touch ID（Face ID）被鎖住，以后每次進來驗證都是調(diào)用系統(tǒng)的設(shè)備密碼直至輸入正確的設(shè)備密碼才能重新使用指紋（人臉）識別*/
    LAPolicyDeviceOwnerAuthentication NS_ENUM_AVAILABLE(10_11, 9_0) = kLAPolicyDeviceOwnerAuthentication
} NS_ENUM_AVAILABLE(10_10, 8_0) __WATCHOS_AVAILABLE(3.0) __TVOS_AVAILABLE(10.0);

///復(fù)用設(shè)備解鎖授權(quán)最大時間常量
extern const NSTimeInterval LATouchIDAuthenticationMaximumAllowableReuseDuration API_AVAILABLE(macos(10.12), ios(9.0)) API_UNAVAILABLE(watchos, tvos);

NS_CLASS_AVAILABLE(10_10, 8_0) __WATCHOS_AVAILABLE(3.0) __TVOS_AVAILABLE(10.0)
@interface LAContext : NSObject
///檢查當(dāng)前設(shè)備是否可用TouchID/FaceID
- (BOOL)canEvaluatePolicy:(LAPolicy)policy error:(NSError * __autoreleasing *)error __attribute__((swift_error(none)));
///驗證TouchID/FaceID方法
- (void)evaluatePolicy:(LAPolicy)policy
       localizedReason:(NSString *)localizedReason
                 reply:(void(^)(BOOL success, NSError * __nullable error))reply;
///用來廢止這個context
- (void)invalidate NS_AVAILABLE(10_11, 9_0);

typedef NS_ENUM(NSInteger, LACredentialType) {
    LACredentialTypeApplicationPassword __TVOS_AVAILABLE(11.0) = kLACredentialTypeApplicationPassword,
} NS_ENUM_AVAILABLE(10_11, 9_0) __WATCHOS_AVAILABLE(3.0) __TVOS_AVAILABLE(10.0);
///設(shè)置解鎖額外加密憑證
- (BOOL)setCredential:(nullable NSData *)credential
                 type:(LACredentialType)type NS_AVAILABLE(10_11, 9_0) __WATCHOS_AVAILABLE(3.0) __TVOS_AVAILABLE(11.0);
///判斷加密憑證是否設(shè)置成功
- (BOOL)isCredentialSet:(LACredentialType)type NS_AVAILABLE(10_11, 9_0) __WATCHOS_AVAILABLE(3.0) __TVOS_AVAILABLE(11.0);

typedef NS_ENUM(NSInteger, LAAccessControlOperation) {
    LAAccessControlOperationCreateItem,        // 訪問控制用于創(chuàng)建新的item
    LAAccessControlOperationUseItem,           // 訪問控制用于使用已存在的item
    LAAccessControlOperationCreateKey,         // 訪問控制用于創(chuàng)建新的密鑰
    LAAccessControlOperationUseKeySign,        // 訪問控制用于使用已存在的密鑰簽名
    LAAccessControlOperationUseKeyDecrypt NS_ENUM_AVAILABLE(10_12, 10_0),     // 訪問控制用于使用已存在的密鑰解密
    LAAccessControlOperationUseKeyKeyExchange NS_ENUM_AVAILABLE(10_12, 10_0), // 訪問控制用于密鑰交換
} NS_ENUM_AVAILABLE(10_11, 9_0) __WATCHOS_AVAILABLE(3.0) __TVOS_AVAILABLE(10.0);
//更加靈活的安全訪問控制
- (void)evaluateAccessControl:(SecAccessControlRef)accessControl
                    operation:(LAAccessControlOperation)operation
              localizedReason:(NSString *)localizedReason
                        reply:(void(^)(BOOL success, NSError * __nullable error))reply
NS_AVAILABLE(10_11, 9_0) __WATCHOS_AVAILABLE(3.0) __TVOS_UNAVAILABLE;

//設(shè)置驗證TouchID時彈出Alert的輸入密碼按鈕的標(biāo)題
@property (nonatomic, nullable, copy) NSString *localizedFallbackTitle;
//設(shè)置驗證TouchID時彈出Alert的取消按鈕的標(biāo)題
@property (nonatomic, nullable, copy) NSString *localizedCancelTitle NS_AVAILABLE(10_12, 10_0);
//最大指紋嘗試錯誤次數(shù) (有效iOS8.3 - iOS9.0) 
@property (nonatomic, nullable) NSNumber *maxBiometryFailures NS_DEPRECATED_IOS(8_3, 9_0) __WATCHOS_UNAVAILABLE __TVOS_UNAVAILABLE;

@property (nonatomic, nullable, readonly) NSData *evaluatedPolicyDomainState NS_AVAILABLE(10_11, 9_0) __WATCHOS_UNAVAILABLE __TVOS_UNAVAILABLE;
/*該屬性表示從設(shè)備解鎖后多長時間內(nèi)不需要重新驗證的時間，該屬性默認值為0，表示不采用設(shè)備解鎖來授權(quán)應(yīng)用。該屬性允許最大的設(shè)置時長為5分鐘（注：屬性值為300，因為是以秒為單位，也可以使用*/
@property (nonatomic) NSTimeInterval touchIDAuthenticationAllowableReuseDuration NS_AVAILABLE(10_12, 9_0) __WATCHOS_UNAVAILABLE __TVOS_UNAVAILABLE;
//
@property (nonatomic, copy) NSString *localizedReason API_AVAILABLE(macos(10.13), ios(11.0)) API_UNAVAILABLE(watchos, tvos);
//允許在非交互模式下進行身份認證。這個是iOS 11新增功能，可以用來解決后臺運行時授權(quán)處理
@property (nonatomic) BOOL interactionNotAllowed API_AVAILABLE(macos(10.13), ios(11.0)) API_UNAVAILABLE(watchos, tvos);

typedef NS_ENUM(NSInteger, LABiometryType) {
    //表示設(shè)備不支持生物識別技術(shù)
    LABiometryTypeNone API_AVAILABLE(macos(10.13.2), ios(11.2)),
    LABiometryNone API_DEPRECATED_WITH_REPLACEMENT("LABiometryTypeNone", macos(10.13, 10.13.2), ios(11.0, 11.2)) = LABiometryTypeNone,
    //表示當(dāng)前設(shè)備支持指紋識別
    LABiometryTypeTouchID,  
    //表示當(dāng)前設(shè)備支持人臉識別
    LABiometryTypeFaceID API_UNAVAILABLE(macos),
} API_AVAILABLE(macos(10.13.2), ios(11.0)) API_UNAVAILABLE(watchos, tvos);

@property (nonatomic, readonly) LABiometryType biometryType API_AVAILABLE(macos(10.13.2), ios(11.0)) API_UNAVAILABLE(watchos, tvos);

@end

NS_ASSUME_NONNULL_END

LAError.h API

包括一個枚舉，里面寫的是錯誤的類型，其實就是把上面的kLAError宏寫進這個枚舉了

#import <Foundation/Foundation.h>
#import <LocalAuthentication/LAPublicDefines.h>

typedef NS_ENUM(NSInteger, LAError)
{   ///身份驗證失敗
    LAErrorAuthenticationFailed = kLAErrorAuthenticationFailed,
    ///用戶在認證時點擊取消
    LAErrorUserCancel = kLAErrorUserCancel,
    ///用戶點擊輸入密碼取消指紋驗證
    LAErrorUserFallback = kLAErrorUserFallback,
    ///身份認證被系統(tǒng)取消(按下[Home鍵]或電源鍵)
    LAErrorSystemCancel = kLAErrorSystemCancel,
    ///用戶沒有設(shè)置TouchID
    LAErrorPasscodeNotSet = kLAErrorPasscodeNotSet,
    ///設(shè)備不支持TouchID
    LAErrorTouchIDNotAvailable NS_ENUM_DEPRECATED(10_10, 10_13, 8_0, 11_0, "use LAErrorBiometryNotAvailable") = kLAErrorTouchIDNotAvailable,
    ///用戶沒有設(shè)置手指指紋
    LAErrorTouchIDNotEnrolled NS_ENUM_DEPRECATED(10_10, 10_13, 8_0, 11_0, "use LAErrorBiometryNotEnrolled") = kLAErrorTouchIDNotEnrolled,
    ///連續(xù)五次密碼錯誤,FaceID被鎖定
    LAErrorTouchIDLockout NS_ENUM_DEPRECATED(10_11, 10_13, 9_0, 11_0, "use LAErrorBiometryLockout")
    __WATCHOS_DEPRECATED(3.0, 4.0, "use LAErrorBiometryLockout") __TVOS_DEPRECATED(10.0, 11.0, "use LAErrorBiometryLockout") = kLAErrorTouchIDLockout,
    ///用戶不能控制情況下App被掛起 / 在驗證中被其他app中斷
    LAErrorAppCancel NS_ENUM_AVAILABLE(10_11, 9_0) = kLAErrorAppCancel,
    ///請求驗證出錯
    LAErrorInvalidContext NS_ENUM_AVAILABLE(10_11, 9_0) = kLAErrorInvalidContext,
    ///
    LAErrorBiometryNotAvailable NS_ENUM_AVAILABLE(10_13, 11_0) __WATCHOS_AVAILABLE(4.0) __TVOS_AVAILABLE(11.0) = kLAErrorBiometryNotAvailable,
    ///
    LAErrorBiometryNotEnrolled NS_ENUM_AVAILABLE(10_13, 11_0) __WATCHOS_AVAILABLE(4.0) __TVOS_AVAILABLE(11.0) = kLAErrorBiometryNotEnrolled,
    ///
    LAErrorBiometryLockout NS_ENUM_AVAILABLE(10_13, 11_0) __WATCHOS_AVAILABLE(4.0) __TVOS_AVAILABLE(11.0) = kLAErrorBiometryLockout,
    ///
    LAErrorNotInteractive API_AVAILABLE(macos(10.10), ios(8.0), watchos(3.0), tvos(10.0)) = kLAErrorNotInteractive,
} NS_ENUM_AVAILABLE(10_10, 8_0) __WATCHOS_AVAILABLE(3.0) __TVOS_AVAILABLE(10.0);

/// LocalAuthentication error domain.
extern NSString *const __nonnull LAErrorDomain
API_AVAILABLE(macos(10.11), ios(8.3), watchos(3.0), tvos(10.0));

FaceID應(yīng)用

LAContext *context = [[LAContext alloc] init];
context.touchIDAuthenticationAllowableReuseDuration = LATouchIDAuthenticationMaximumAllowableReuseDuration;
NSError *error = nil;
BOOL isSupportFaceID = [context canEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics error:&error];
if (isSupportFaceID) {
    NSLog(@"FaceID_IS_AVAILABLE");
    [context evaluatePolicy:LAPolicyDeviceOwnerAuthentication localizedReason:@"請驗證指紋" reply:
     ^(BOOL success, NSError *authenticationError) {
         if (success) {
             NSLog(@"FaceID_unlock_Success");
         }
         else {
             NSLog(@"FaceID_unlock_Failure");
         }
     }];
}
else {
    NSLog(@"FaceID_IS_UNAVAILABLE");
}

復(fù)用設(shè)備解鎖授權(quán)

如果你的應(yīng)用想要在設(shè)備使用Touch ID / Face ID解鎖后一段時間內(nèi)自己的App也不需要重新彈出解鎖界面，就可以使用LAContext的touchIDAuthenticationAllowableReuseDuration屬性，該屬性表示從設(shè)備解鎖后多長時間內(nèi)不需要重新驗證的時間，該屬性默認值為0，表示不采用設(shè)備解鎖來授權(quán)應(yīng)用。該屬性允許最大的設(shè)置時長為5分鐘（注：屬性值為300，因為是以秒為單位，也可以使用LATouchIDAuthenticationMaximumAllowableReuseDuration常量值）

控制Keychain（鑰匙串）訪問權(quán)限

在iOS 9之前我們寫入到Keychain的數(shù)據(jù)，在設(shè)備解鎖后就能夠?qū)?code>keychain中的數(shù)據(jù)進行訪問，其實這樣是不夠安全的，特別是在你的App使用第三方SDK的情況底下，很有可能就會去竊取App中的keychain數(shù)據(jù)。那么，在iOS 9之后，系統(tǒng)加入了一項新的功能，就是允許應(yīng)用來控制Keychain的數(shù)據(jù)訪問。它的實現(xiàn)過程是在寫入數(shù)據(jù)時添加一個應(yīng)用級別的訪問密碼，后續(xù)要訪問這個數(shù)據(jù)除了要設(shè)備解鎖，還需要有正確的密碼才能夠訪問keychain中的數(shù)據(jù)。而這功能正好是集成到了LocalAuthentication這個框架中，下面我們來探索一下這個功能的用法。

實現(xiàn)keychain的控制訪問，依然還是要依靠LAContext來實現(xiàn)，我們可以看到在iOS 9之后，這個類型新增了一個方法setCredential:type:。這個方法的作用就是把訪問Keychain的密碼設(shè)置到LAContext對象中，配合LACredentialTypeApplicationPassword這個類型就能夠?qū)崿F(xiàn)控制訪問了。
下面先來看一下實現(xiàn)的示例代碼：

OSStatus status = -1;
CFErrorRef error = NULL;
SecAccessControlRef sacr = SecAccessControlCreateWithFlags(kCFAllocatorDefault, kSecAttrAccessibleAfterFirstUnlock, kSecAccessControlApplicationPassword, &error);
    
if (sacr) {
    NSString *dataValue = @"要寫入的數(shù)據(jù)";    //要寫入的數(shù)據(jù)
    NSString *password = @"123456";          //訪問密碼
    NSData *passwordData = [password dataUsingEncoding:NSUTF8StringEncoding];
        
    LAContext *context = [[LAContext alloc] init];
    [context setCredential:passwordData type:LACredentialTypeApplicationPassword];
        
    NSMutableDictionary *saveDictionary = [[NSMutableDictionary alloc] init];
    [saveDictionary setObject:(__bridge id)kSecClassGenericPassword forKey:(__bridge id)kSecClass];
    [saveDictionary setObject:@"testService" forKey:(__bridge id)kSecAttrService];
    [saveDictionary setObject:@"testAccount" forKey:(__bridge id)kSecAttrAccount];
    [saveDictionary setObject:[dataValue dataUsingEncoding:NSUTF8StringEncoding] forKey:(__bridge id)kSecValueData];
    [saveDictionary setObject:(__bridge id)sacr forKey:(__bridge id)kSecAttrAccessControl];
    [saveDictionary setObject:context forKey:(__bridge id)kSecUseAuthenticationContext];
        
    status = SecItemAdd((__bridge CFDictionaryRef)saveDictionary, nil);
    if (status == errSecSuccess) {
        NSLog(@"存儲成功");
    }
    CFRelease(sacr);
}

OSStatus status = -1;
CFErrorRef error = NULL;
SecAccessControlRef sacr = SecAccessControlCreateWithFlags(kCFAllocatorDefault,
                                                              kSecAttrAccessibleAfterFirstUnlock,
                                                              kSecAccessControlApplicationPassword, &error);
if (sacr) {
    NSString *password = @"123456"; //訪問密碼
    LAContext *context = [[LAContext alloc] init];
    NSData *appPassword = [password dataUsingEncoding:NSUTF8StringEncoding];
    [context setCredential:appPassword type:LACredentialTypeApplicationPassword];
        
    NSMutableDictionary *loadDictionary = [[NSMutableDictionary alloc] init];
    [loadDictionary setObject:(__bridge id)kSecClassGenericPassword forKey:(__bridge id)kSecClass];
    [loadDictionary setObject:@"testService" forKey:(__bridge id)kSecAttrService];
    [loadDictionary setObject:@"testAccount" forKey:(__bridge id)kSecAttrAccount];
    [loadDictionary setObject:@(YES) forKey:(__bridge id)kSecReturnData];
    [loadDictionary setObject:(NSString *)kSecMatchLimitOne forKey:(__bridge id)kSecMatchLimit];
    [loadDictionary setObject:(__bridge id)sacr forKey:(__bridge id)kSecAttrAccessControl];
    [loadDictionary setObject:context forKey:(__bridge id)kSecUseAuthenticationContext];

    CFDataRef data = NULL;
    CFDataRef passwordData = (__bridge CFDataRef)(appPassword);
    status = SecItemCopyMatching((CFDictionaryRef)loadDictionary, (CFTypeRef *)&data);
    if (status == errSecSuccess) {
       if ( 0 < CFDataGetLength(data)) {
            CFStringRef string = CFStringCreateWithBytes(kCFAllocatorDefault, CFDataGetBytePtr(passwordData), CFDataGetLength(passwordData), kCFStringEncodingUTF8, FALSE);
            if (string) {
                NSString *dataString = [[NSString alloc] initWithData:(__bridge NSData *)data encoding:NSUTF8StringEncoding];
                NSLog(@"data = %@", dataString);
                CFRelease(string);
            }
        }
    }
    else {
        NSLog(@"密碼錯誤，無法訪問");
    }
    if (data != NULL) {
        CFRelease(data);
    }
    CFRelease(sacr);
}

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TouchID 、FaceID 與KeyChain介紹

TouchID 、FaceID 與KeyChain介紹

LAPublicDefines.h

LAContext.h API

LAError.h API

FaceID應(yīng)用

復(fù)用設(shè)備解鎖授權(quán)

控制Keychain（鑰匙串）訪問權(quán)限

相關(guān)閱讀更多精彩內(nèi)容

友情鏈接更多精彩內(nèi)容

色偷偷精品伊人,欧洲久久精品,欧美综合婷婷骚逼,国产AV主播,国产最新探花在线,九色在线视频一区,伊人大交九 欧美,1769亚洲,黄色成人av

TouchID 、FaceID 與KeyChain介紹

LAPublicDefines.h

LAContext.h API

LAError.h API

FaceID應(yīng)用

復(fù)用設(shè)備解鎖授權(quán)

控制Keychain（鑰匙串）訪問權(quán)限

相關(guān)閱讀更多精彩內(nèi)容

友情鏈接更多精彩內(nèi)容

色偷偷精品伊人,欧洲久久精品,欧美综合婷婷骚逼,国产AV主播,国产最新探花在线,九色在线视频一区,伊人大交九欧美,1769亚洲,黄色成人av