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I want to try LPS, but I cannot verify the certificate of their https site, I already knew the reason, now how can I get the correct certificate information(especially the fingerprint) to compare it to the one I get in the browser?

Edit: I found a site that seems provide DOD certificate in https, is that site legit?

  • You can’t. Why would anyone publish that? The chain of trust means they don’t have to. You need the CA certificate. – Daniel B Jun 13 '17 at 19:14
  • So it will be impossible for a normal civilian to obtain the CA securely? – Sam Jun 14 '17 at 14:10
  • The site is unofficial but legit as far as I know, although not sure how carefully they check where they've obtained the files... @DanielB, the question is about obtaining the roots as DoD has their own independent from WebPKI, and of course they publish the public root certificates... – user1686 Jun 15 '17 at 15:59
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From Wikipedia:

The web site for distribution of LPS-Public is served over HTTPS, but uses a TLS certificate that is signed by a certificate authority managed directly by the Department of Defense. This CA is not trusted by most non-DoD operating systems and browsers. Because of this, visiting the site or downloading the ISO will generate a browser security warning indicating that the certificate is not trusted. Military-issued devices already include this certificate authority in their list of trusted CAs, and so will not see these errors.

You'll have to get the CA from DOD.

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    Apparently, they’re available here: iase.disa.mil/pki-pke/Pages/tools.aspx (tab “Trust Store“). – Daniel B Jun 13 '17 at 19:15
  • Nice. Thanks. I like the toll-free number to verify the fingerprint of the signature. – quadruplebucky Jun 13 '17 at 20:09
  • @quadruplebucky - What makes you think there is a number you can call to verify the fingerprint of the certificate? The thumbprint of the certificate is ‎b8 48 bd a3 10 8c 3e b2 42 b2 51 0c 47 9e e0 ab 53 66 2f ed by the way. The certificate is valid from 8/22/2016 to 8/23/2018. Of course if you download from iase.disa.mil, which itself is a secure connection, I don't understand the concern. – Ramhound Jun 13 '17 at 20:50
  • I think the author was being sarcastic, sarcasm escapes me, I am a very literal person :$ – Ramhound Jun 14 '17 at 1:46
  • @Ramhound apparently you're not too literal, because the site for the CAs does indeed have a phone number. – Xavier J Jun 14 '17 at 2:06

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