我正在开发 iOS 应用程序。我们有带有自签名 ca-cert 的自定义证书颁发机构。证书颁发机构也为用户和 https 服务器颁发证书。我想创建一个 iOS 应用程序,它可以使用 ca 证书对 https 服务器进行身份验证,也可以使用客户端证书与 https 服务器通信。我已经有了使用客户端证书与 https 服务器通信的代码,但我需要将 ca-certificate 导入系统密钥环。我想将 ca 证书硬编码到应用程序中。我的代码如下所示:
- (BOOL)connection:(NSURLConnection *)connection canAuthenticateAgainstProtectionSpace:(NSURLProtectionSpace *)protectionSpace {
bool result=NO;
if ([protectionSpace authenticationMethod] == NSURLAuthenticationMethodServerTrust) {
result= YES;
} else if([protectionSpace authenticationMethod] == NSURLAuthenticationMethodClientCertificate) {
result = YES;
}
return result;
}
- (BOOL)shouldTrustProtectionSpace:(NSURLProtectionSpace *)protectionSpace {
CFDataRef certDataRef = (__bridge_retained CFDataRef)self.rootCertData;
SecCertificateRef cert = SecCertificateCreateWithData(NULL, certDataRef);
SecTrustRef serverTrust = protectionSpace.serverTrust;
CFArrayRef certArrayRef = CFArrayCreate(NULL, (void *)&cert, 1, NULL);
SecTrustSetAnchorCertificates(serverTrust, certArrayRef);
SecTrustResultType trustResult;
SecTrustEvaluate(serverTrust, &trustResult);
return trustResult == kSecTrustResultUnspecified;
}
- (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge {
NSLog(@"Did receive auth challange %@",[challenge debugDescription]);
NSURLProtectionSpace *protectionSpace = [challenge protectionSpace];
NSString *authMethod = [protectionSpace authenticationMethod];
if(authMethod == NSURLAuthenticationMethodServerTrust ) {
NSLog(@"Verifying The Trust");
NSURLCredential* cred=[NSURLCredential credentialForTrust:[protectionSpace serverTrust]];
if ([self shouldTrustProtectionSpace:challenge.protectionSpace]) {
[[challenge sender] useCredential:cred forAuthenticationChallenge:challenge];
NSLog(@"OK");
} else {
NSLog(@"FAILED");
[challenge.sender performDefaultHandlingForAuthenticationChallenge:challenge];
}
}
if(authMethod == NSURLAuthenticationMethodClientCertificate ) {
NSLog(@"Trying Certificate");
.....
一切都像一个魅力,直到服务器不需要客户端证书。此时我会收到错误此服务器的证书无效并且执行永远不会到达点
NSLog(@"Trying Certificate");
当我将 .der ca-cert 加载到系统密钥环中时,一切正常,甚至客户端证书也被发送到服务器,服务器可以识别用户。我认为
SecTrustSetAnchorCertificates(serverTrust, certArrayRef);
以某种方式影响信任,因为当我跳过这个电话时,我可以简单地做:
[[challenge sender] useCredential:cred forAuthenticationChallenge:challenge];
没有任何错误,但在这种情况下我无法验证证书。
我究竟做错了什么?
非常感谢,亚当