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http数据传输传输的是明文，未进行加密的数据链可以在网络中设置代理进行截取，尽管会有token等验证手段，但数据被监听还是不可避免的，这点使用网络抓包软件就能做到。
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而对于https数据加密后传输的数据，抓到的数据包都只是乱码，安全性大幅提高，也是当前大势所趋。
下面就介绍一下使用ASIHttpRequest 和 AFNetworking两种三方库进行https加密的方式。
原料： 1、相应的ASIHttpRequest、AFNetworking配置完成 2、相应的证书文件
一、ASIHttpRequest
` / 测试https接口 /
(void)testClientCertificate { NSURL *httpsUrl = [NSURL URLWithString:@"https://www.XXXXX.com/method.php"];
ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:httpsUrl]; SecIdentityRef identity = NULL; SecTrustRef trust = NULL;NSData *cerData = [NSData dataWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"证书文件名" ofType:@"文件类型"]]; [[self class] extractIdentity:&identity andTrust:&trust fromPKCS12Data:cerData]; request = [ASIHTTPRequest requestWithURL:httpsUrl]; [request setClientCertificateIdentity:identity];
/ 是否验证服务器端证书，如果此项为yes那么服务器端证书必须为合法的证书机构颁发的，而不能是自己用openssl 或java生成的证书 /
[request setValidatesSecureCertificate:NO];
[request setRequestMethod:@"GET"];
[request startSynchronous];NSError *error = [request error];if (!error) { NSString *response = [request responseString]; NSLog(@"response is : %@",response); NSLog(@"获取数据成功");
}else {
NSLog(@"Failed to save to data store: %@", [error localizedDescription]); NSLog(@"%@",[error userInfo]); }
}
/ 提取证书 /
(BOOL)extractIdentity:(SecIdentityRef )identityRef andTrust:(SecTrustRef)trustRef fromPKCS12Data:(NSData *)CerData {
OSStatus securityError = errSecSuccess;
NSDictionary *optionsDictionary = [NSDictionary dictionaryWithObject:@"证书密码" forKey:(id)kSecImportExportPassphrase];
CFArrayRef items = CFArrayCreate(NULL, 0, 0, NULL);
securityError = SecPKCS12Import((CFDataRef)CerData,(CFDictionaryRef)optionsDictionary,&items);
if (securityError == 0) {
CFDictionaryRef myIdentityAndTrust = CFArrayGetValueAtIndex (items, 0);const void *tempIdentity = NULL; tempIdentity = CFDictionaryGetValue (myIdentityAndTrust, kSecImportItemIdentity); *identityRef = (SecIdentityRef)tempIdentity;const void *tempTrust = NULL; tempTrust = CFDictionaryGetValue (myIdentityAndTrust, kSecImportItemTrust); *trustRef = (SecTrustRef)tempTrust;
} else {
NSLog(@"Failed with error code %d",(int)securityError);
/ 若报错 -26275 文件读取不出数据，此时可将文件格式进行更改，再重新导入项目 /
return NO;
}
return YES;
} ` 二、AFNetworking
/ 测试https接口 /
(void)testClientCertificate
{
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
manager.responseSerializer = [AFHTTPResponseSerializer serializer];/*
Https SSL 验证。
*/[manager setSecurityPolicy:[self SetSecurityPolicy]];
[manager GET:@"https://www.demo.com/method.php" parameters:nil progress:^(NSProgress * _Nonnull downloadProgress)
{ NSLog(@"%@",downloadProgress);
}
success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) { NSData * responsedata=(NSData *)responseObject; NSString * response =[[NSString alloc]initWithData: responsedata encoding:NSUTF8StringEncoding]; NSLog(@"%@", response); NSLog(@"获取数据成功");
}
failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) { NSLog(@"%@",error);
}];}
/ 设置安全证书 /
(AFSecurityPolicy * )SetSecurityPolicy {
NSString *cerPath = [[NSBundle mainBundle] pathForResource:@"证书名称" ofType:@"证书后缀"];
NSData *certData = [NSData dataWithContentsOfFile:cerPath];
/ AFSSLPinningModeCertificate 使用证书验证模式 /
AFSecurityPolicy *securityPolicy = [AFSecurityPolicy policyWithPinningMode:AFSSLPinningModeCertificate];
/ allowInvalidCertificates 是否允许自建证书，默认为NO / securityPolicy.allowInvalidCertificates = NO;
/ validatesDomainName 是否需要验证域名，默认为YES； /
securityPolicy.validatesDomainName = YES;
securityPolicy.pinnedCertificates = [NSSet setWithArray:@[certData]];
return securityPolicy;
}