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[QUESTION] UnityWebRequest and SSL protocol on Android

Discussion in 'Scripting' started by qiqiqi, Feb 22, 2019.

  1. qiqiqi

    qiqiqi

    Joined:
    Nov 3, 2015
    Posts:
    16
    Hi,

    question in short:
    Has UnityWebRequest (in Unity 5.6.4) done anything to raise SSL version(like TLSv1.0 -> TLSv1.1) behind the scene?

    details:
    I tried 2 ways to download a zip on Android, using Android's Download Manager and using Unity's UnityWebRequest,
    On many old android phones(Android 4.x), Android's Download Manager has SSL handshake error, but Unity's UnityWebRequest works well,
    I have figured out the problem, which is because my CDN server is configured with TLSv1.1, but Android 4.x phones is configured with TLSv1.0 by default,
    however I don't understand why UnityWebRequest still work in this case.

    Appreciate for any help!
     
    Last edited: Feb 22, 2019
    qiqiqi, Feb 22, 2019
    #1

  2. Aurimas-Cernius

    Aurimas-Cernius

    Unity Technologies

    Joined:
    Jul 31, 2013
    Posts:
    3,638
    Yes, we do enable TLS 1.1 support. Android has support for it, but it is disabled by default until a certain Android release. We do enable it for UnityWebRequest.
     
    Aurimas-Cernius, Feb 25, 2019
    #2
    qiqiqi likes this.

  3. qiqiqi

    qiqiqi

    Joined:
    Nov 3, 2015
    Posts:
    16
    Thank you
     
    qiqiqi, Feb 25, 2019
    #3