<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div class="">Yes, these would be considered weak. If you’re using the OpenSSL backend and the current version of libssh2 there are many other secure options that libssh2 supports. </div><div class=""><br class=""></div><div class="">If you’re not using the OpenSSL backend; someone would need to implement them on your preferred backend. </div><div class=""><br class=""></div>Will<br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Jan 11, 2022, at 11:39 AM, Will Bell via libssh2-devel <<a href="mailto:libssh2-devel@lists.haxx.se" class="">libssh2-devel@lists.haxx.se</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><div class="gmail_default" style="font-family:tahoma,sans-serif"><div class="gmail_default">Hi,</div><div class="gmail_default"><br class=""></div><div class="gmail_default">Recently a popular sftp server vendor used by several of our production customers ended support for all of the following key exchange methods supported by libssh2, claiming that they are insecure: </div><div class="gmail_default">diffie-hellman-group1-sha1</div><div class="gmail_default">diffie-hellman-group14-sha1</div><div class="gmail_default">diffie-hellman-group-exchange-sha1</div><div class="gmail_default">diffie-hellman-group-exchange-sha256</div><div class="gmail_default"><br class=""></div><div class="gmail_default">Unfortunately, this completely breaks libssh2 integration. Are there any plans to update the supported key exchange methods?</div><div class="gmail_default"><br class=""></div><div class="gmail_default">Thanks.</div></div></div>
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