iOS开发基础109-网络安全
1.iOS开发基础77-一像素线的几种实现方式2.iOS开发基础78-iOS 国际化3.iOS开发基础82-关于iOS目录4.iOS开发基础81-Runtime实战5.iOS开发基础80-关于Xcode86.iOS开发基础79-强制退出程序7.iOS开发基础90-密码学8.iOS开发基础89-Runloop9.iOS开发基础88-涂鸦效果10.iOS开发基础87-抽屉效果11.iOS开发基础86-FMDB12.iOS开发基础85-线程dispatch apply13.iOS开发基础84-HTTP请求方法详解与增删改查的应用14.iOS开发基础83-线程组15.iOS开发基础106-Instruments16.iOS开发基础105-Xcode收集Crashs的各种方法17.iOS开发基础104-正向代理和反向代理18.iOS开发基础103-APP之间跳转19.iOS开发基础102-后台保活方案20.iOS开发基础101-指纹和面部识别21.iOS开发基础100-MDM证书申请流程22.iOS开发基础99-iOS 内购的防范与优化23.iOS开发基础98-跳转淘宝案例24.iOS开发基础97-应用内购(In-App Purchase)的安全性解析与收据处理流程25.iOS开发基础96-UI类继承关系图26.iOS开发基础95-程序内评价27.iOS开发基础94-xcode1028.iOS开发基础93-GCD死锁29.iOS开发基础92-线程保活30.iOS开发基础91-线程同步技术与资源共享详解31.iOS开发基础138-视频编码32.iOS开发基础137-音视频编解码简介33.iOS开发基础136-防暴力点击34.iOS开发基础135-Core Data35.iOS开发基础134-异步并行上传问题36.iOS开发基础133-崩溃预防37.iOS开发基础132-POSIX线程库38.iOS开发基础131-isa指针39.iOS开发基础130-视频录制上传40.iOS开发基础129-音频录制上传41.iOS开发基础128-应用本地化42.iOS开发基础127-深入探讨KVO43.iOS开发基础126-深入探索设计模式44.iOS开发基础125-深入探索SDWebImage45.iOS开发基础124-RunLoop实现卡顿检测46.iOS开发基础123-自动释放池原理47.iOS开发基础122-RunLoop48.iOS开发基础121-APP启动优化49.iOS开发基础120-通知与线程50.iOS开发基础119-组件化51.iOS开发基础118-Runtime52.iOS开发基础117-Hybrid53.iOS开发基础116-性能监控54.iOS开发基础115-Socket55.iOS开发基础114-YYCache56.iOS开发基础113-Unity3D57.iOS开发基础112-GCD常见场景58.iOS开发基础111-RAC59.iOS开发基础110-Core Graphics应用场景
60.iOS开发基础109-网络安全
61.iOS开发基础108-常见的编程范式62.iOS开发基础107-iOS直播63.iOS开发基础148-ABM vs MDM64.iOS开发基础147-ABM集中管理Apple设备65.iOS开发基础146-深入解析WKWebView66.iOS开发基础145-Apple Search Ads67.iOS开发基础144-逐字打印效果68.iOS开发基础143-性能优化69.iOS开发基础142-广告归因70.iOS开发基础141-音频解码71.iOS开发基础140-音频编码72.iOS开发基础139-视频解码73.iOS开发基础149-由UUIDString引发的思考在iOS开发中,保障应用的网络安全是一个非常重要的环节。以下是一些常见的网络安全措施及对应的示例代码:
Swift版
1. 使用HTTPS
确保所有的网络请求使用HTTPS协议,以加密数据传输,防止中间人攻击。
示例代码:
在Info.plist中配置App Transport Security (ATS):
<key>NSAppTransportSecurity</key>
<dict>
<key>NSAllowsArbitraryLoads</key>
<false/>
</dict>
2. SSL Pinning
通过SSL Pinning可以确保应用程序只信任指定的服务器证书,防止被劫持到伪造的服务器。
示例代码:
import Foundation
class URLSessionPinningDelegate: NSObject, URLSessionDelegate {
func urlSession(_ session: URLSession, didReceive challenge: URLAuthenticationChallenge, completionHandler: @escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Void) {
if let serverTrust = challenge.protectionSpace.serverTrust,
SecTrustEvaluate(serverTrust, nil) == errSecSuccess,
let serverCertificate = SecTrustGetCertificateAtIndex(serverTrust, 0) {
let localCertificateData = try? Data(contentsOf: Bundle.main.url(forResource: "your_cert", withExtension: "cer")!)
let serverCertificateData = SecCertificateCopyData(serverCertificate) as Data
if localCertificateData == serverCertificateData {
let credential = URLCredential(trust: serverTrust)
completionHandler(.useCredential, credential)
return
}
}
completionHandler(.cancelAuthenticationChallenge, nil)
}
}
// Usage
let url = URL(string: "https://yoursecurewebsite.com")!
let session = URLSession(configuration: .default, delegate: URLSessionPinningDelegate(), delegateQueue: nil)
let task = session.dataTask(with: url) { data, response, error in
// Handle response
}
task.resume()
3. 防止SQL注入
在处理用户输入时,使用参数化查询来防止SQL注入攻击。
示例代码:
import SQLite3
func queryDatabase(userInput: String) {
var db: OpaquePointer?
// Open database (assuming dbPath is the path to your database)
sqlite3_open(dbPath, &db)
var queryStatement: OpaquePointer?
let query = "SELECT * FROM users WHERE username = ?"
if sqlite3_prepare_v2(db, query, -1, &queryStatement, nil) == SQLITE_OK {
sqlite3_bind_text(queryStatement, 1, userInput, -1, nil)
while sqlite3_step(queryStatement) == SQLITE_ROW {
// Process results
}
}
sqlite3_finalize(queryStatement)
sqlite3_close(db)
}
4. Data Encryption
在存储敏感数据时,使用iOS的加密库来加密数据,比如使用Keychain
。
示例代码:
import Security
func saveToKeychain(key: String, data: Data) -> OSStatus {
let query: [String: Any] = [
kSecClass as String: kSecClassGenericPassword,
kSecAttrAccount as String: key,
kSecValueData as String: data
]
SecItemDelete(query as CFDictionary) // Delete any existing item
return SecItemAdd(query as CFDictionary, nil) // Add new item
}
func loadFromKeychain(key: String) -> Data? {
let query: [String: Any] = [
kSecClass as String: kSecClassGenericPassword,
kSecAttrAccount as String: key,
kSecReturnData as String: kCFBooleanTrue!,
kSecMatchLimit as String: kSecMatchLimitOne
]
var dataTypeRef: AnyObject?
let status: OSStatus = SecItemCopyMatching(query as CFDictionary, &dataTypeRef)
if status == noErr {
return dataTypeRef as? Data
} else {
return nil
}
}
5. 输入验证与清理
对用户输入进行验证和清理,防止XSS(跨站脚本攻击)和其他注入攻击。
示例代码:
func sanitize(userInput: String) -> String {
// Remove any script tags or other potentially dangerous content
return userInput.replacingOccurrences(of: "<script>", with: "", options: .caseInsensitive)
.replacingOccurrences(of: "</script>", with: "", options: .caseInsensitive)
}
// Usage
let userInput = "<script>alert('xss')</script>"
let sanitizedInput = sanitize(userInput: userInput)
print(sanitizedInput) // Outputs: alert('xss')
OC版
1. 使用HTTPS
确保所有的网络请求都使用HTTPS协议,以加密数据传输,防止中间人攻击。
示例代码:
在Info.plist
中配置App Transport Security (ATS):
<key>NSAppTransportSecurity</key>
<dict>
<key>NSAllowsArbitraryLoads</key>
<false/>
</dict>
2. SSL Pinning
通过SSL Pinning可以确保应用程序只信任指定的服务器证书,防止被劫持到伪造的服务器。
示例代码:
#import <Foundation/Foundation.h>
@interface URLSessionPinningDelegate : NSObject <NSURLSessionDelegate>
@end
@implementation URLSessionPinningDelegate
- (void)URLSession:(NSURLSession *)session didReceiveChallenge:(NSURLAuthenticationChallenge *)challenge completionHandler:(void (^)(NSURLSessionAuthChallengeDisposition disposition, NSURLCredential * _Nullable credential))completionHandler {
if ([challenge.protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTrust]) {
SecTrustRef serverTrust = challenge.protectionSpace.serverTrust;
SecCertificateRef serverCertificate = SecTrustGetCertificateAtIndex(serverTrust, 0);
NSString *certPath = [[NSBundle mainBundle] pathForResource:@"your_cert" ofType:@"cer"];
NSData *localCertData = [NSData dataWithContentsOfFile:certPath];
NSData *serverCertData = (__bridge NSData *)(SecCertificateCopyData(serverCertificate));
if ([localCertData isEqualToData:serverCertData]) {
NSURLCredential *credential = [NSURLCredential credentialForTrust:serverTrust];
completionHandler(NSURLSessionAuthChallengeUseCredential, credential);
return;
}
}
completionHandler(NSURLSessionAuthChallengeCancelAuthenticationChallenge, nil);
}
@end
// Usage
NSURL *url = [NSURL URLWithString:@"https://yoursecurewebsite.com"];
NSURLSessionConfiguration *sessionConfig = [NSURLSessionConfiguration defaultSessionConfiguration];
URLSessionPinningDelegate *pinningDelegate = [[URLSessionPinningDelegate alloc] init];
NSURLSession *session = [NSURLSession sessionWithConfiguration:sessionConfig delegate:pinningDelegate delegateQueue:nil];
NSURLSessionDataTask *task = [session dataTaskWithURL:url completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
if (error == nil) {
// Handle response
}
}];
[task resume];
3. 防止SQL注入
在处理用户输入时,使用参数化查询来防止SQL注入攻击。
示例代码:
#import <sqlite3.h>
- (void)queryDatabase:(NSString *)userInput {
sqlite3 *db;
// Open database (assuming dbPath is the path to your database)
if (sqlite3_open([dbPath UTF8String], &db) == SQLITE_OK) {
sqlite3_stmt *statement;
const char *query = "SELECT * FROM users WHERE username = ?";
if (sqlite3_prepare_v2(db, query, -1, &statement, NULL) == SQLITE_OK) {
sqlite3_bind_text(statement, 1, [userInput UTF8String], -1, SQLITE_TRANSIENT);
while (sqlite3_step(statement) == SQLITE_ROW) {
// Process results
}
}
sqlite3_finalize(statement);
sqlite3_close(db);
}
}
4. Data Encryption
在存储敏感数据时,使用iOS的加密库来加密数据,比如使用Keychain
。
示例代码:
#import <Security/Security.h>
- (OSStatus)saveToKeychainWithKey:(NSString *)key data:(NSData *)data {
NSDictionary *query = @{(__bridge id)kSecClass: (__bridge id)kSecClassGenericPassword,
(__bridge id)kSecAttrAccount: key,
(__bridge id)kSecValueData: data};
SecItemDelete((__bridge CFDictionaryRef)query); // Delete any existing item
return SecItemAdd((__bridge CFDictionaryRef)query, NULL); // Add new item
}
- (NSData *)loadFromKeychainWithKey:(NSString *)key {
NSDictionary *query = @{(__bridge id)kSecClass: (__bridge id)kSecClassGenericPassword,
(__bridge id)kSecAttrAccount: key,
(__bridge id)kSecReturnData: (__bridge id)kCFBooleanTrue,
(__bridge id)kSecMatchLimit: (__bridge id)kSecMatchLimitOne};
CFTypeRef dataTypeRef = NULL;
OSStatus status = SecItemCopyMatching((__bridge CFDictionaryRef)query, &dataTypeRef);
if (status == noErr) {
return (__bridge_transfer NSData *)dataTypeRef;
} else {
return nil;
}
}
5. 输入验证与清理
对用户输入进行验证和清理,防止XSS(跨站脚本攻击)和其他注入攻击。
示例代码:
- (NSString *)sanitize:(NSString *)userInput {
// Remove any script tags or other potentially dangerous content
NSString *sanitizedInput = [userInput stringByReplacingOccurrencesOfString:@"<script>" withString:@"" options:NSCaseInsensitiveSearch range:NSMakeRange(0, userInput.length)];
sanitizedInput = [sanitizedInput stringByReplacingOccurrencesOfString:@"</script>" withString:@"" options:NSCaseInsensitiveSearch range:NSMakeRange(0, sanitizedInput.length)];
return sanitizedInput;
}
// Usage
NSString *userInput = @"<script>alert('xss')</script>";
NSString *sanitizedInput = [self sanitize:userInput];
NSLog(@"%@", sanitizedInput); // Outputs: alert('xss')
通过这些措施,你可以显著提升iOS应用的网络安全性。根据项目需求,灵活运用这些技术以确保用户数据的安全。
将来的你会感谢今天如此努力的你!
版权声明:本文为博主原创文章,未经博主允许不得转载。
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