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+ (NSString *)bundleSeedID { NSDictionary *query = [NSDictionary dictionaryWithObjectsAndKeys: kSecClassGenericPassword, kSecClass, @"bundleSeedID", kSecAttrAccount, @"", kSecAttrService, (id)kCFBooleanTrue, kSecReturnAttributes, nil]; CFDictionaryRef result = nil; OSStatus status = SecItemCopyMatching((CFDictionaryRef)query, (CFTypeRef *)&result); if (status == errSecItemNotFound) status = SecItemAdd((CFDictionaryRef)query, (CFTypeRef *)&result); if (status != errSecSuccess) return nil; NSString *accessGroup = [(NSDictionary *)result objectForKey:kSecAttrAccessGroup]; NSArray *components = [accessGroup componentsSeparatedByString:@"."]; NSString *bundleSeedID = [[components objectEnumerator] nextObject]; CFRelease(result); return bundleSeedID; } |
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