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    Obsolete Cipher Suite Message

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    • J
      jospoortvliet Vendor
      last edited by

      This is essentially telling you that the encryption your browser negotiated with the website in question is getting old - it might not yet have been compromised but the general confidence in its protection is quite low and you should avoid using it for things where you really need to be certain of the protection encryption offers.

      Say you download software and you need to be sure it ain't compromised - take this warning serious. Not as home user, probably, unless you are banking (your bank REALLY ought to use newer ciphers). But as business - it isn't unreasonable to kick Microsoft for this, you're downloading software from their site.

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        BRRABill @jospoortvliet
        last edited by

        @jospoortvliet said i

        But as business - it isn't unreasonable to kick Microsoft for this, you're downloading software from their site.

        And this isn't just their home page, it is on ODfB and SharePoint.

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          BRRABill
          last edited by

          I've become obsessed with checking this on every HTTPS site.

          Perhaps I need more hobbies.

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            scottalanmiller
            last edited by

            I hear good things about Warhammer 40K

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              Dashrender @scottalanmiller
              last edited by Dashrender

              @scottalanmiller said in Obsolete Cipher Suite Message:

              I hear good things about Warhammer 40K

              thread bleed?

              Never mind - I missed @BRRABill hobby comment.

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                BRRABill @Dashrender
                last edited by BRRABill

                @Dashrender said

                Never mind - I missed @BRRABill hobby comment.

                It was just a way to BUMP my thread.

                I was surprised no one commented with something that seems so serious being exhibited on some major websites.

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                  tonyshowoff
                  last edited by

                  This post is deleted!
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                    tonyshowoff @BRRABill
                    last edited by

                    @BRRABill said in Obsolete Cipher Suite Message:

                    I've become obsessed with checking this on every HTTPS site.

                    Perhaps I need more hobbies.

                    lol I do that.

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                    • D
                      Dashrender
                      last edited by

                      Chrome (through Google's security team) is pushing the industry to stronger standards, some argue, faster than is needed. Personally I'm on board with Google. Without the weight of someone like Google pushing this, things just don't happen until it's way past a useful change.

                      In this case, SHA-1 has still not been short circuited from a hacking perspective so the risk is truly minimal.

                      There are several Security Now podcasts about this topic. Steve Gibson road out his SHA-1 cert until Dec 31 of last year to allow those people who are using old ass browsers like IE on XP and the built-in browser on Android 2.1. Those browsers don't support SHA-256, and since there was no current real threat, Steve felt it best to be available as long as possible.

                      Now the industry as a whole is moving away from the SHA-1 certs, but they are still valid until the end of this year I believe.

                      https://isc.sans.edu/forums/diary/SHA1+Phase+Out+Overview/20423/

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                        tonyshowoff @Dashrender
                        last edited by

                        @Dashrender said in Obsolete Cipher Suite Message:

                        In this case, SHA-1 has still not been short circuited from a hacking perspective so the risk is truly minimal.

                        It has, for a long time: https://www.schneier.com/blog/archives/2005/02/sha1_broken.html

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                          Dashrender @tonyshowoff
                          last edited by

                          @tonyshowoff said in Obsolete Cipher Suite Message:

                          @Dashrender said in Obsolete Cipher Suite Message:

                          In this case, SHA-1 has still not been short circuited from a hacking perspective so the risk is truly minimal.

                          It has, for a long time: https://www.schneier.com/blog/archives/2005/02/sha1_broken.html

                          I'll read this in a min, but if this is what i heard about, there's a possible collision in something like the first half, or quarter or something.. which is a work toward the whole.. but definitely not a finished product by any means.

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                            Dashrender @tonyshowoff
                            last edited by

                            @tonyshowoff said in Obsolete Cipher Suite Message:

                            @Dashrender said in Obsolete Cipher Suite Message:

                            In this case, SHA-1 has still not been short circuited from a hacking perspective so the risk is truly minimal.

                            It has, for a long time: https://www.schneier.com/blog/archives/2005/02/sha1_broken.html

                            OK now I've read it.. interesting.. if this is really the case, then why isn't it getting more attention? And that was from 2005. Eleven years ago... this is borderline NSA/Snowden like stuff.

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                              tonyshowoff @Dashrender
                              last edited by

                              @Dashrender said in Obsolete Cipher Suite Message:

                              @tonyshowoff said in Obsolete Cipher Suite Message:

                              @Dashrender said in Obsolete Cipher Suite Message:

                              In this case, SHA-1 has still not been short circuited from a hacking perspective so the risk is truly minimal.

                              It has, for a long time: https://www.schneier.com/blog/archives/2005/02/sha1_broken.html

                              OK now I've read it.. interesting.. if this is really the case, then why isn't it getting more attention? And that was from 2005. Eleven years ago... this is borderline NSA/Snowden like stuff.

                              Well, MD5 was defeated as early as 1996, and to this day it's huge, and only recently did SHA-1 replace it in many places. So it's about the same timeframe, Google's on the right track like you said.

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                                BRRABill
                                last edited by

                                I don't think it is an SHA issue.

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                                  tonyshowoff @BRRABill
                                  last edited by tonyshowoff

                                  @BRRABill said in Obsolete Cipher Suite Message:

                                  I don't think it is an SHA issue.

                                  Yes it is, especially because of how fast you can actually collide in SHA-1. Consider, though, MD5 support for certificates wasn't even broadly removed until about 17 years after it was first found to be weak, I think Google just wants to speed things up. Me personally, I think we should all use SHA-512 (a part of SHA-2), it's what I use for everything I can. 256 will do though 😉

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                                    BRRABill @tonyshowoff
                                    last edited by

                                    @tonyshowoff

                                    Is HMAC-SHA1 the same as SHA1?

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                                      tonyshowoff @BRRABill
                                      last edited by tonyshowoff

                                      @BRRABill No, and it's more secure than SHA-1, so long as the key is safe. The SHA1 part of HMAC-SHA1 refers to how it's calculated.

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                                        BRRABill @tonyshowoff
                                        last edited by

                                        @tonyshowoff said in Obsolete Cipher Suite Message:

                                        @BRRABill No, and it's more secure than SHA-1, so long as the key is safe.

                                        The reason I asked because https://www.microsoft.com (for example) is using HMAC-SHA1.

                                        Hence why I said it isn't a SHA-1 issue causing this, at least on that site, and others.

                                        Or am I mistaken there?

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                                          tonyshowoff @BRRABill
                                          last edited by

                                          @BRRABill said in Obsolete Cipher Suite Message:

                                          @tonyshowoff said in Obsolete Cipher Suite Message:

                                          @BRRABill No, and it's more secure than SHA-1, so long as the key is safe.

                                          The reason I asked because https://www.microsoft.com (for example) is using HMAC-SHA1.

                                          Hence why I said it isn't a SHA-1 issue causing this, at least on that site, and others.

                                          Or am I mistaken there?

                                          In this case there really is no difference as confusing as that is, but I don't see SHA-1 there, instead SHA-2 (256)

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                                            BRRABill @tonyshowoff
                                            last edited by

                                            @tonyshowoff said

                                            In this case there really is no difference as confusing as that is, but I don't see SHA-1 there, instead SHA-2 (256)

                                            This is what I am seeing...

                                            0_1461725685350_hmac-sha1.png

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