流打开后如何将NSStream（NSInputStream / NSOutputStream）转换为SSL？

Question

我有这段代码的NSInputStream和NSOutputStream

    var readStream: Unmanaged<CFReadStream>?
    var writeStream: Unmanaged<CFWriteStream>?

    CFStreamCreatePairWithSocket(kCFAllocatorDefault, sslSocket!, &readStream, &writeStream)
    if readStream != nil && writeStream != nil {
        CFReadStreamSetProperty(readStream!.takeUnretainedValue(), kCFStreamPropertyShouldCloseNativeSocket, kCFBooleanTrue)
        CFWriteStreamSetProperty(writeStream!.takeUnretainedValue(), kCFStreamPropertyShouldCloseNativeSocket, kCFBooleanTrue)

        inputStream = readStream!.takeRetainedValue()
        outputStream = writeStream!.takeRetainedValue()

        // Create strong delegate reference to stop ARC deallocating the object
        inputDelegate = self
        outputDelegate = self

        // Now that we have a strong reference, assign the object to the stream delegates
        inputStream!.delegate = inputDelegate
        outputStream!.delegate = outputDelegate


        // Schedule our run loops. This is needed so that we can recieve NSStreamEvents
        inputStream!.scheduleInRunLoop(NSRunLoop.mainRunLoop(), forMode: NSDefaultRunLoopMode)
        outputStream!.scheduleInRunLoop(NSRunLoop.mainRunLoop(), forMode: NSDefaultRunLoopMode)

        inputStream!.open()
        outputStream!.open()
    }

问题：打开流后，如何将这些流转换为SSL？

我尝试了以下操作，但得到了NSOSStatusErrorDomain：

该操作无法完成。（OSStatus错误-9801）

if (sslEnable) {
    let sslSettings = [
        NSString(format: kCFStreamSSLValidatesCertificateChain): kCFBooleanFalse,
        NSString(format: kCFStreamSSLPeerName): kCFNull,
        NSString(format: kCFStreamSSLIsServer): kCFBooleanTrue,
    ]
    CFReadStreamSetProperty(inputStream, kCFStreamPropertySSLSettings, sslSettings)
    CFWriteStreamSetProperty(outputStream, kCFStreamPropertySSLSettings, sslSettings)

}

Answer 1

这是框架errSSLNegotiation中的错误SecureTransport.hSecurity

-9801 The cipher suite negotiation failed.

也许您尝试连接的服务器具有非常旧的 SSL 实现，或者您的服务器密码套件配置与手机的配置不匹配。

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