{"id":463,"date":"2014-09-23T10:55:07","date_gmt":"2014-09-23T02:55:07","guid":{"rendered":"http:\/\/www.withonly.com\/?p=463"},"modified":"2014-09-23T11:00:39","modified_gmt":"2014-09-23T03:00:39","slug":"ios%e4%bd%bf%e7%94%a8keychain%e5%ad%98%e5%82%a8%e6%95%b0%e6%8d%ae","status":"publish","type":"post","link":"https:\/\/blog.5danyuan.com\/?p=463","title":{"rendered":"iOS\u4f7f\u7528keychain\u5b58\u50a8\u6570\u636e"},"content":{"rendered":"

\u5728\u67d0\u4e2a\u5468\u516d\u7684\u65f6\u5019\uff0c\u6211\u8dd1\u53bb\u542c\u4e86\u4e00\u4e2a\u6dd8\u5b9d\u4e3e\u529e\u7684\u65e0\u7ebf\u4ea4\u6d41\u4f1a\uff0c\u5bf9\u4e8e\u5b89\u5168\u6765\u8bf4\u8fd8\u662f\u86ee\u6709\u6536\u83b7\u7684\u3002\u56de\u6765\u540e\u5728\u7f51\u4e0a\u627e\u76f8\u5173\u8d44\u6599\uff0c\u770b\u5230\u4e00\u4e2a\u5173\u4e8e\u4f7f\u7528 keychain \u6765\u5b58\u50a8\u6570\u636e\u7684\u65b9\u6848\uff0c\u601d\u8def\u6bd4\u8f83\u4e0d\u9519\u3002<\/p>\n

\u4f7f\u7528keychain\uff0c\u67092\u70b9\u597d\u5904\u3002<\/p>\n

1\u3001\u6570\u636e\u76f8\u5bf9\u4f7f\u7528NSUserDefaults\uff0c\u66f4\u5b89\u5168\u4e00\u70b9\u3002<\/p>\n

2\u3001\u53ef\u4ee5\u7528\u6765\u8fdb\u884c\u5e94\u7528\u95f4\u7684\u6570\u636e\u5171\u4eab\u3002<\/p>\n

\u4e0b\u9762\u7ed9\u51fa\u901a\u7528\u7c7b\u4ee3\u7801\uff0c\u9996\u5148\u662f\u5934\u6587\u4ef6<\/p>\n

KeychainManager.h<\/p>\n

 <\/p>\n

#import <\/span><Foundation\/Foundation.h><\/p>\n

@interface<\/span> KeychainManager : NSObject<\/span><\/p>\n

+ (void<\/span>)save:(NSString<\/span> *)key withValue:(id<\/span>)value;<\/p>\n

+ (id<\/span>)get:(NSString<\/span> *)key;<\/p>\n

+ (void<\/span>)deleteData;<\/p>\n

@end<\/p>\n

\n

\u63a5\u4e0b\u6765\uff0c\u662f\u5177\u4f53\u7684\u5b9e\u73b0\u4ee3\u7801<\/p>\n

KeychainManager.m<\/p>\n

\n

#import <\/span>“KeychainManager.h”<\/p>\n

@implementation<\/span> KeychainManager<\/p>\n

static<\/span> NSString<\/span> * const<\/span> KEY_IN_KEYCHAIN = @”com.5danyuan.app”<\/span>;<\/p>\n

+ (void<\/span>)save:(NSString<\/span> *)key withValue:(id<\/span>)value{<\/p>\n

\u00a0 \u00a0 <\/span><\/span>NSMutableDictionary *dic = [<\/span>NSMutableDictionary dictionary];<\/span><\/p>\n

\u00a0\u00a0 \u00a0<\/span><\/p>\n

\u00a0 \u00a0 <\/span>[dic setObject<\/span>:value forKey<\/span>:key];<\/p>\n

\u00a0\u00a0 \u00a0<\/span><\/p>\n

\u00a0 \u00a0 <\/span><\/span>NSMutableDictionary *query = [<\/span>NSMutableDictionary dictionaryWithObjectsAndKeys:<\/span><\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <\/span>(__bridge_transfer<\/span> id<\/span>)kSecClassGenericPassword<\/span>,<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <\/span>(__bridge_transfer<\/span> id<\/span>)kSecClass<\/span>,<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <\/span>KEY_IN_KEYCHAIN<\/span>,(__bridge_transfer<\/span> id<\/span>)kSecAttrService<\/span>,<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <\/span>KEY_IN_KEYCHAIN<\/span>,(__bridge_transfer<\/span> id<\/span>)kSecAttrAccount<\/span>,<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <\/span>(__bridge_transfer<\/span> id<\/span>)kSecAttrAccessibleAfterFirstUnlock<\/span>,<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <\/span>(__bridge_transfer<\/span> id<\/span>)kSecAttrAccessible<\/span>,<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <\/span>nil<\/span>];<\/p>\n

\u00a0 \u00a0 <\/span><\/span>\/\/\u5220\u9664\u65e7\u6570\u636e<\/span><\/p>\n

\u00a0 \u00a0 <\/span><\/span>SecItemDelete((<\/span>__bridge_retained<\/span> CFDictionaryRef)query);<\/span><\/p>\n

\u00a0 \u00a0 <\/span>[query <\/span>setObject:[<\/span>NSKeyedArchiver archivedDataWithRootObject:dic] <\/span>forKey: (<\/span>__bridge_transfer<\/span> id<\/span>)<\/span>kSecValueData];<\/span><\/p>\n

\u00a0 \u00a0 <\/span><\/span>SecItemAdd((<\/span>__bridge_retained<\/span> CFDictionaryRef)query, <\/span>NULL<\/span>);<\/span><\/p>\n

}<\/p>\n

+ (id<\/span>)get:(NSString<\/span> *)key{<\/p>\n

\u00a0 \u00a0 <\/span><\/span>NSMutableDictionary *dic = <\/span>nil<\/span>;<\/span><\/p>\n

\u00a0 \u00a0 <\/span><\/span>NSMutableDictionary *query = [<\/span>NSMutableDictionary dictionaryWithObjectsAndKeys:<\/span><\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <\/span>(__bridge_transfer<\/span> id<\/span>)kSecClassGenericPassword<\/span>,<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <\/span>(__bridge_transfer<\/span> id<\/span>)kSecClass<\/span>,<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <\/span>KEY_IN_KEYCHAIN<\/span>,(__bridge_transfer<\/span> id<\/span>)kSecAttrService<\/span>,<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <\/span>KEY_IN_KEYCHAIN<\/span>,(__bridge_transfer<\/span> id<\/span>)kSecAttrAccount<\/span>,<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <\/span>(__bridge_transfer<\/span> id<\/span>)kSecAttrAccessibleAfterFirstUnlock<\/span>,<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <\/span>(__bridge_transfer<\/span> id<\/span>)kSecAttrAccessible<\/span>,<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <\/span>nil<\/span>];<\/p>\n

\u00a0 \u00a0 <\/span>[query <\/span>setObject: (<\/span>id<\/span>)<\/span>kCFBooleanTrue forKey: (<\/span>__bridge_transfer<\/span> id<\/span>)<\/span>kSecReturnData];<\/span><\/p>\n

\u00a0 \u00a0 <\/span>[query <\/span>setObject: (<\/span>__bridge_transfer<\/span> id<\/span>)<\/span>kSecMatchLimitOne forKey: (<\/span>__bridge_transfer<\/span> id<\/span>)<\/span>kSecMatchLimit];<\/span><\/p>\n

\u00a0 \u00a0 <\/span>CFDataRef<\/span> keyData = NULL<\/span>;<\/p>\n

\u00a0 \u00a0 <\/span><\/span>if<\/span> (<\/span>SecItemCopyMatching((<\/span>__bridge_retained<\/span> CFDictionaryRef)query, (<\/span>CFTypeRef *)&keyData) == <\/span>noErr) {<\/span><\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 <\/span>@try<\/span> {<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <\/span>dic = (<\/span>NSMutableDictionary *)[<\/span>NSKeyedUnarchiver unarchiveObjectWithData: (<\/span>__bridge_transfer<\/span> NSData *)keyData];<\/span><\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 <\/span>}<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 <\/span>@catch<\/span> (NSException *exception) {<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <\/span><\/span>NSLog<\/span>(<\/span>@”Unarchive of %@ failed:%@”,<\/span>KEY_IN_KEYCHAIN<\/span>,exception);<\/span><\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 <\/span>}<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 <\/span>@finally<\/span> {<\/p>\n

\u00a0\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/span><\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 <\/span>}<\/p>\n

\u00a0 \u00a0 <\/span>}<\/p>\n

\u00a0\u00a0 \u00a0<\/span><\/p>\n

\u00a0 \u00a0 <\/span>if<\/span>(dic != nil<\/span>){<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 <\/span>return<\/span> [dic objectForKey<\/span>:key];<\/p>\n

\u00a0 \u00a0 <\/span>}<\/p>\n

\u00a0\u00a0 \u00a0<\/span><\/p>\n

\u00a0 \u00a0 <\/span><\/span>return nil;<\/span><\/p>\n

}<\/p>\n

+ (void<\/span>)deleteData{<\/p>\n

\u00a0 \u00a0 <\/span><\/span>NSMutableDictionary *query = [<\/span>NSMutableDictionary dictionaryWithObjectsAndKeys:<\/span><\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <\/span>(__bridge_transfer<\/span> id<\/span>)kSecClassGenericPassword<\/span>,<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <\/span>(__bridge_transfer<\/span> id<\/span>)kSecClass<\/span>,<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <\/span>KEY_IN_KEYCHAIN<\/span>,(__bridge_transfer<\/span> id<\/span>)kSecAttrService<\/span>,<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <\/span>KEY_IN_KEYCHAIN<\/span>,(__bridge_transfer<\/span> id<\/span>)kSecAttrAccount<\/span>,<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <\/span>(__bridge_transfer<\/span> id<\/span>)kSecAttrAccessibleAfterFirstUnlock<\/span>,<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <\/span>(__bridge_transfer<\/span> id<\/span>)kSecAttrAccessible<\/span>,<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <\/span>nil<\/span>];<\/p>\n

\u00a0\u00a0 \u00a0<\/span><\/p>\n

\u00a0 \u00a0 <\/span><\/span>SecItemDelete((<\/span>__bridge_retained<\/span> CFDictionaryRef)query);<\/span><\/p>\n

}<\/p>\n

@end<\/p>\n

\u00a0\u5bf9\u4e8e\u901a\u7528\u7c7b\u800c\u8a00\uff0c\u63d0\u4f9b\u4e863\u4e2a\u65b9\u6cd5\uff0c\u6dfb\u52a0\u3001\u5220\u9664\u3001\u4fdd\u5b58\u3002\u5176\u4e2d\uff0c\u4e3a\u4e86\u5b89\u5168\u8d77\u89c1\uff0c\u9632\u6b62\u88ab\u6076\u610f\u5206\u6790\uff0c\u83b7\u53d6\u7684get\u65b9\u6cd5\u7684\u8fd4\u56de\u503c\u662f id \u7c7b\u578b\u7684\u3002\u5bf9\u4e8e\u5408\u6cd5\u7684\u4f7f\u7528\u8005\uff0c\u81ea\u7136\u662f\u77e5\u9053\u5e94\u8be5\u8f6c\u6362\u4e3a\u4ec0\u4e48\u6837\u7684\u6570\u636e\u7c7b\u578b\u7684\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u5728\u67d0\u4e2a\u5468\u516d\u7684\u65f6\u5019\uff0c\u6211\u8dd1\u53bb\u542c\u4e86\u4e00\u4e2a\u6dd8\u5b9d\u4e3e\u529e\u7684\u65e0\u7ebf\u4ea4\u6d41\u4f1a\uff0c\u5bf9\u4e8e\u5b89\u5168\u6765\u8bf4\u8fd8\u662f\u86ee\u6709\u6536\u83b7\u7684\u3002\u56de\u6765\u540e\u5728\u7f51\u4e0a\u627e\u76f8\u5173\u8d44\u6599\uff0c\u770b\u5230 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[27,5],"tags":[253,204,205,32],"class_list":["post-463","post","type-post","status-publish","format-standard","hentry","category-ios","category-daily","tag-ios","tag-keychain","tag-205","tag-32"],"_links":{"self":[{"href":"https:\/\/blog.5danyuan.com\/index.php?rest_route=\/wp\/v2\/posts\/463","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.5danyuan.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.5danyuan.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.5danyuan.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.5danyuan.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=463"}],"version-history":[{"count":0,"href":"https:\/\/blog.5danyuan.com\/index.php?rest_route=\/wp\/v2\/posts\/463\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.5danyuan.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=463"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.5danyuan.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=463"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.5danyuan.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=463"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}