Swift 3如何使用SSL固定和AlamoFire驗證服務器證書？

Question

我正在寫swift 3中的一個應用程序，需要與我的服務器通話。我擁有完整的證書鏈，以der和crt格式出現，我是CA的成員（不要與自簽名混淆）。我如何在我的應用程序中使用它來驗證我的服務器？下面是我的休息調用和響應

REST調用：

var request = URLRequest(url: URL(string: "https://myserver/login")!) 
    request.addValue("Content-Type", forHTTPHeaderField: "application/json") 
    request.httpMethod = "GET" 
    let session = URLSession.shared 

    session.dataTask(with: request) {data, response, err in   
     print("=========================DATA===============================") 
     if data != nil { 
      print(data!) 
     } 
     print("=========================RESPONSE===============================") 
     if response != nil { 
      print(response!) 
     } 
     print("=========================ERR===============================") 
     if err != nil { 
      print(err!) 
     } 
     }.resume() 

輸出：

=========================DATA=============================== 
=========================RESPONSE=============================== 
=========================ERR=============================== 
Error Domain=NSURLErrorDomain Code=-1200 "An SSL error has occurred and a secure connection to the server cannot be made." UserInfo={NSURLErrorFailingURLPeerTrustErrorKey=<SecTrustRef: 0x60800011f020>, NSLocalizedRecoverySuggestion=Would you like to connect to the server anyway?, _kCFStreamErrorDomainKey=3, _kCFStreamErrorCodeKey=-9802, NSErrorPeerCertificateChainKey=(
"<cert(0x7fae4803d200) s: myserver i: MySubCA>", 
"<cert(0x7fae48047000) s: MySubCA i: MyRootCA>", 
"<cert(0x7fae48044600) s: MyRootCA i: MyRootCA>" 
), NSUnderlyingError=0x60800005a040 {Error Domain=kCFErrorDomainCFNetwork Code=-1200 "(null)" UserInfo={_kCFStreamPropertySSLClientCertificateState=0, kCFStreamPropertySSLPeerTrust=<SecTrustRef: 0x60800011f020>, _kCFNetworkCFStreamSSLErrorOriginalValue=-9802, _kCFStreamErrorDomainKey=3, _kCFStreamErrorCodeKey=-9802, kCFStreamPropertySSLPeerCertificates=(
"<cert(0x7fae4803d200) s: myserver i: MySubCA>", 
"<cert(0x7fae48047000) s: MySubCA i: MyRootCA>", 
"<cert(0x7fae48044600) s: MyRootCA i: MyRootCA>" 
)}}, NSLocalizedDescription=An SSL error has occurred and a secure connection to the server cannot be made., NSErrorFailingURLKey=https://myserver/login, NSErrorFailingURLStringKey=https://myserver/login, NSErrorClientCertificateStateKey=0} 

Answer 1

我解決了這個問題倒也乾脆利用一個在線的博客，AlamoFire和OpenSSL

我用AlamoFire用於iOS的網絡連接

https://github.com/Alamofire/Alamofire 

我使用了大約SSL的一篇文章中的iOS寄託於得到正確的方向

https://infinum.co/the-capsized-eight/articles/how-to-make-your-ios-apps-more-secure-with-ssl-pinning 

我使用OpenSSL的到我的證書轉換爲DER格式

https://help.netmail.com/display/KB/Converting+SSL+Certificate+File+from+CRT+TO+DER+TO+PEM 

明鏡轉換

openssl x509 -in cert.crt -out cert.der -outform DER 

您需要將der格式化的證書添加到您的應用程序包中。

斯威夫特3實施

// Your hostname and endpoint 
let hostname = "YOUR_HOST_NAME" 
let endpoint = "YOUR_ENDPOINT" 
let cert = "YOUR_CERT" // e.g. for cert.der, this should just be "cert" 

// Set up certificates 
let pathToCert = Bundle.main.path(forResource: cert, ofType: "der") 
let localCertificate = NSData(contentsOfFile: pathToCert!) 
let certificates = [SecCertificateCreateWithData(nil, localCertificate!)!] 

// Configure the trust policy manager 
let serverTrustPolicy = ServerTrustPolicy.pinCertificates(
    certificates: certificates, 
    validateCertificateChain: true, 
    validateHost: true 
)  
let serverTrustPolicies = [hostname: serverTrustPolicy] 
let serverTrustPolicyManager = ServerTrustPolicyManager(policies: serverTrustPolicies) 

// Configure session manager with trust policy 
afManager = SessionManager(
    configuration: URLSessionConfiguration.default, 
    serverTrustPolicyManager: serverTrustPolicyManager 
) 


afManager.request(endpoint, method: .get).responseJSON { response in 
    debugPrint("All Response Info: \(response)") 
}