使用 Swift 3 和 Alamofire 4 获取客户端证书以进行相互身份验证

我能够让它工作.出现了一些问题.首先，您必须允许 IOS 接受自签名证书.这需要设置 AlamoFire serverTrustPolicy:

I was able to get it to work. A few issues got into the way. First, you have to allow IOS to accept self signed certificates. This requires to set up AlamoFire serverTrustPolicy:

let serverTrustPolicies: [String: ServerTrustPolicy] = [
        "your-domain.com": .disableEvaluation
    ]

self.sessionManager = Alamofire.SessionManager(
        serverTrustPolicyManager: ServerTrustPolicyManager(policies: serverTrustPolicies)
    )

从那里，您必须覆盖 sessionDidRecieveChallenge 以发送客户端证书.因为我想使用 p12 文件，所以我修改了我在其他地方找到的一些代码(对不起，我没有源代码了)使 Swift 3.0 使用基础类导入 p12:

From there, you have to override the sessionDidRecieveChallenge to send the client certificate. Because i wanted to use a p12 file I modified some code I found elsewhere (sorry i don't have the source anymore) to make is Swift 3.0 to import the p12 using foundation classes:

import Foundation

public class PKCS12  {
    var label:String?
    var keyID:Data?
    var trust:SecTrust?
    var certChain:[SecTrust]?
    var identity:SecIdentity?

    let securityError:OSStatus

    public init(data:Data, password:String) {

        //self.securityError = errSecSuccess

        var items:CFArray?
        let certOptions:NSDictionary = [kSecImportExportPassphrase as NSString:password as NSString]

        // import certificate to read its entries
        self.securityError = SecPKCS12Import(data as NSData, certOptions, &items);

        if securityError == errSecSuccess {
            let certItems:Array = (items! as Array)
            let dict:Dictionary<String, AnyObject> = certItems.first! as! Dictionary<String, AnyObject>;

            self.label = dict[kSecImportItemLabel as String] as? String;
            self.keyID = dict[kSecImportItemKeyID as String] as? Data;
            self.trust = dict[kSecImportItemTrust as String] as! SecTrust?;
            self.certChain = dict[kSecImportItemCertChain as String] as? Array<SecTrust>;
            self.identity = dict[kSecImportItemIdentity as String] as! SecIdentity?;
        }


    }

    public convenience init(mainBundleResource:String, resourceType:String, password:String) {
        self.init(data: NSData(contentsOfFile: Bundle.main.path(forResource: mainBundleResource, ofType:resourceType)!)! as Data, password: password);
    }

    public func urlCredential()  -> URLCredential  {
        return URLCredential(
            identity: self.identity!,
            certificates: self.certChain!,
            persistence: URLCredential.Persistence.forSession);

    }



}

这将允许我导入文件，并将其发送回客户端.

This will allow me to import the file, and send it back to the client.

let cert = PKCS12.init(mainBundleResource: "cert", resourceType: "p12", password: "password");

self.sessionManager.delegate.sessionDidReceiveChallenge = { session, challenge in
        if challenge.protectionSpace.authenticationMethod == NSURLAuthenticationMethodClientCertificate {
            return (URLSession.AuthChallengeDisposition.useCredential, self.cert.urlCredential());
        }
        if challenge.protectionSpace.authenticationMethod == NSURLAuthenticationMethodServerTrust {
            return (URLSession.AuthChallengeDisposition.useCredential, URLCredential(trust: challenge.protectionSpace.serverTrust!));
        }
        return (URLSession.AuthChallengeDisposition.performDefaultHandling, Optional.none);
    }

现在您可以使用 sessionManager 根据需要创建任意数量的调用.

Now you can use the sessionManager to create as many calls as you need to.

请注意，我还在 info.plist 中添加了以下建议，以避开较新的 iOS 功能中的新安全功能:

As a note, i've also added the following to the info.plist as recomended to get around the new security features in newer iOS features:

<key>NSAppTransportSecurity</key>
    <dict>
        <key>NSAllowsArbitraryLoads</key>
        <true/>
        <key>NSExceptionDomains</key>
        <dict>
            <key>your-domain.com</key>
            <dict>
                <key>NSIncludesSubdomains</key>
                <true/>
                <key>NSExceptionRequiresForwardSecrecy</key>
                <false/>
                <key>NSExceptionAllowsInsecureHTTPLoads</key>
                <true/>
            </dict>
        </dict>
    </dict>

我希望这会有所帮助！