Certificate Trust List [1].<p>&gt; A CTL is a predefined list of items signed by a trusted entity. ... The primary use of CTLs is to verify signed Messages, using the CTL as a source of trusted root certificates.<p>[1] <a href="https:&#x2F;&#x2F;msdn.microsoft.com&#x2F;en-us&#x2F;library&#x2F;windows&#x2F;desktop&#x2F;aa376545(v=vs.85).aspx" rel="nofollow">https:&#x2F;&#x2F;msdn.microsoft.com&#x2F;en-us&#x2F;library&#x2F;windows&#x2F;desktop&#x2F;aa3...</a>