ANTM/Assets/Plugins/UnityPurchasing/script/link.xml

<linker>
    <assembly fullname="UnityEngine.Purchasing">
        <type fullname="UnityEngine.Purchasing.Extension.IPurchasingBinder" preserve="all"/>
    </assembly>
    <assembly fullname="Stores">
        <type fullname="UnityEngine.Purchasing.CloudCatalogImpl" preserve="all"/>
    </assembly>
    <assembly fullname="mscorlib">
        <type fullname="System.Security.Cryptography.*" preserve="all"/>
    </assembly>
</linker>