想要搞懂https首先你要知道ssl/tls
什么是ssl/tls?SSL利用数据加密、身份验证和消息完整性验证机制，为网络上数据的传输提供安全性保证。SSL支持各种应用层协议。由于SSL位于应用层和传输层之间，所以可以为任何基于TCP等可靠连接的应用层协议提供安全性保证。。。一脸蒙蔽
1.身份验证 说白了就是验证ca证书（双向验证：服务器雨客户端都彼此验证对方or单向验证：只是客户端验证服务端）
2.数据加密 各种对称非对称加密
3.消息完整 md5
ok ！其实https就是http+ssl 。
现在讲基于AF的 https
首先你要向服务器确认是单向还是双向
1.单向验证

+ (AFSecurityPolicy*)customSecurityPolicy {

    AFSecurityPolicy *securityPolicy = [AFSecurityPolicy policyWithPinningMode:AFSSLPinningModeCertificate];
    NSString * cerPath = [[NSBundle mainBundle] pathForResource:@"server" ofType:@"cer"];
    NSData *certData = [NSData dataWithContentsOfFile:cerPath];
    NSSet   *dataSet = [NSSet setWithArray:@[certData]];
    [securityPolicy setAllowInvalidCertificates:YES];
    [securityPolicy setPinnedCertificates:dataSet];
    [securityPolicy setValidatesDomainName:NO];
    return securityPolicy;
    
}
然后在请求前调用
 [manager setSecurityPolicy:[self customSecurityPolicy]];

2.双向验证

//校验p12文件
+(void)getP12Secret:(AFURLSessionManager *)manager
{
    //    manager.securityPolicy.requestSerializer.cachePolicy = NSURLRequestReloadIgnoringLocalCacheData;
    [manager setSessionDidBecomeInvalidBlock:^(NSURLSession * _Nonnull session, NSError * _Nonnull error) {
        
    }];
    
    __weak typeof(manager)weakManager = manager;
    
    [manager setSessionDidReceiveAuthenticationChallengeBlock:^NSURLSessionAuthChallengeDisposition(NSURLSession*session, NSURLAuthenticationChallenge *challenge, NSURLCredential *__autoreleasing*_credential) {
        NSURLSessionAuthChallengeDisposition disposition = NSURLSessionAuthChallengePerformDefaultHandling;
        __autoreleasing NSURLCredential *credential =nil;
        if([challenge.protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTrust]) {
            if([weakManager.securityPolicy evaluateServerTrust:challenge.protectionSpace.serverTrust forDomain:challenge.protectionSpace.host]) {
                credential = [NSURLCredential credentialForTrust:challenge.protectionSpace.serverTrust];
                if(credential) {
                    disposition =NSURLSessionAuthChallengeUseCredential;
                } else {
                    disposition =NSURLSessionAuthChallengePerformDefaultHandling;
                }
            } else {
                disposition = NSURLSessionAuthChallengeCancelAuthenticationChallenge;
            }
        } else {
            // client authentication
            SecIdentityRef identity = NULL;
            SecTrustRef trust = NULL;
            NSString *p12 = [[NSBundle mainBundle] pathForResource:@"client"ofType:@"p12"];
            NSFileManager *fileManager =[NSFileManager defaultManager];
            
            if(![fileManager fileExistsAtPath:p12])
            {
                NSLog(@"client.p12:not exist");
            }
            else
            {
                NSData *PKCS12Data = [NSData dataWithContentsOfFile:p12];
                
                if ([LSHttp extractIdentity:&identity andTrust:&trust fromPKCS12Data:PKCS12Data])
                {
                    SecCertificateRef certificate = NULL;
                    SecIdentityCopyCertificate(identity, &certificate);
                    const void*certs[] = {certificate};
                    CFArrayRef certArray =CFArrayCreate(kCFAllocatorDefault, certs,1,NULL);
                    credential =[NSURLCredential credentialWithIdentity:identity certificates:(__bridge  NSArray*)certArray persistence:NSURLCredentialPersistencePermanent];
                    disposition =NSURLSessionAuthChallengeUseCredential;
                }
            }
        }
        *_credential = credential;
        return disposition;
    }];
}

//读取p12文件中的密码
+(BOOL)extractIdentity:(SecIdentityRef*)outIdentity andTrust:(SecTrustRef *)outTrust fromPKCS12Data:(NSData *)inPKCS12Data {
    OSStatus securityError = errSecSuccess;
    //client certificate password
    NSDictionary*optionsDictionary = [NSDictionary dictionaryWithObject:@"000023223003232"
                                                                 forKey:(__bridge id)kSecImportExportPassphrase];
    
    CFArrayRef items = CFArrayCreate(NULL, 0, 0, NULL);
    securityError = SecPKCS12Import((__bridge CFDataRef)inPKCS12Data,(__bridge CFDictionaryRef)optionsDictionary,&items);
    
    if(securityError == 0) {
        CFDictionaryRef myIdentityAndTrust =CFArrayGetValueAtIndex(items,0);
        const void*tempIdentity =NULL;
        tempIdentity= CFDictionaryGetValue (myIdentityAndTrust,kSecImportItemIdentity);
        *outIdentity = (SecIdentityRef)tempIdentity;
        const void*tempTrust =NULL;
        tempTrust = CFDictionaryGetValue(myIdentityAndTrust,kSecImportItemTrust);
        *outTrust = (SecTrustRef)tempTrust;
    } else {
        NSLog(@"Failedwith error code %d",(int)securityError);
        return NO;
    }af
    return YES;
}
在请求前调用
//https验证
    [manager setSecurityPolicy:[self customSecurityPolicy]];//这个也要加
    [LSHttp getP12Secret:manager];

ok sever.cer与client.p12都是服务端给你的 p12的密码也是服务前端给你的
当然还要遇到坑
这些配置好了你会发现还会崩溃

图片.png

注释掉尖头这里就好了