<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">I've seen several people mention Certificate Transparency (CT). To pick a recent example:<div><br></div><div><blockquote type="cite">(1) The web server problem: a present server needs to prove itself to a<br>present visitor. Addressed by CT, etc.</blockquote><br></div><div><span class="comment"><font color="#000000">Certificate Transparency does not work.<p>Nor does it perform as advertised. It does not, as it claims, always provide a log of issued certificates and it does not stop MITM attacks:</p><p>- <a href="http://www.ietf.org/mail-archive/web/trans/current/msg00233.html">http://www.ietf.org/mail-archive/web/trans/current/msg00233.html</a></p><p>- <a href="http://okturtles.com/#oktvs">http://okturtles.com/#oktvs</a></p></font><p><font color="#000000">It also does nothing to fix the non-functioning certificate revocation problem (which is not a problem with the blockchain).</font></p></span></div><div><div>Kind regards,</div><div>Greg</div><div> <br class="Apple-interchange-newline"><span style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; display: inline !important; float: none;">--</span><br style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><span style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; display: inline !important; float: none;">Please do not email me anything that you are not comfortable also sharing</span><span style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; display: inline !important; float: none;"> with the NSA.</span> </div> <br></div></body></html>