similar to: ECDSA client question

On 12/16/18 7:52 AM, Tributh via dovecot wrote: > > > Am 16.12.18 um 12:13 schrieb Michael A. Peters: >> Hi, for those who have adopted ECDSA, >> >> Are there still any commonly used IMAPS/POP3S clients that still can not >> handle ECDSA certificates? >> >> I know you can set up Dovecot dor dual cert, I am just trying to >> determine if there

Does the version of OpenSSL on Centos 6.5 support ECDSA keypairs? How do I test if this works? (though I should probably ask this on the OpenSSL list) The reason I suspect a problem is that HIPL for Centos (http://infrahip.hiit.fi/) is not creating the ECDSA Host Identity, whereas my Fedora installation IS creating the ECDSA HI.

Hi, I was sure I sent this to openssh at openssh.com, but cannot find that email now in my Sent mailbox, so I am sending it to the developers list. I took a liberty and wrote an I-D with accompanying patch (with contributions from Ondrej Caletka) to support ECDSA in the SSHFP DNS resource record. The I-D is here: https://tools.ietf.org/html/draft-os-ietf-sshfp-ecdsa-sha2 (and the source XML

Folks, I read the 5.7 release announcement and updated, to try out ECDSA. Most parts worked very smoothly. The inability to create SSHFP records is understandable, since IANA haven't allocated a code yet. One apparent bug: I think StrictHostKeyChecking=ask is broken for ECDSA. % ssh -o HostKeyAlgorithms=ecdsa-sha2-nistp256 localhost

Hello. I am running OpenSSH 7.9p1 on my client and server. ssh-keyscan shows the server has ssh-rsa, ssh-ed25519, and ecdsa-sha2-nistp256 host keys. My /etc/ssh/ssh_known_hosts file contains the server's ssh-ed25519 host key. When I try to SSH to the server I get this error: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!

I am assuming this is a user error (and the bug, if any is in configure not telling me how to activate it). I regularly see a message: Could not load host key: /etc/ssh/ssh_host_ecdsa_key And, obviously, I have never made the key before. I tried the following: ./ssh-keygen -t ecdsa -fssh_host_esdsa_key -N "" unknown key type ecdsa However, the syntax says it is a known type root at

hi folks: it looks like ssh-keygen -r can''t export SSHFP records for ECDSA keys: 0 dkg@pip:/tmp/cdtemp.oiRYAS$ ssh-keygen -f foobar -t ecdsa -q -P '''' 0 dkg@pip:/tmp/cdtemp.oiRYAS$ ssh-keygen -r foobar -f foobar.pub export_dns_rr: unsupported algorithm 0 dkg@pip:/tmp/cdtemp.oiRYAS$ the first number in my prompt is the return code of the last command; note that

Hi, It seems that some versions of ssh-agent get confused by ECDSA-SK keys. >From my OpenBSD-current laptop, I'm trying to do remote system adminstration on a machine running Debian 8 with the stock ssh package (OpenSSH_6.7p1 Debian-5+deb8u8, OpenSSL 1.0.2l 25 May 2017). I need access to a remote gitlab server to fetch files with git, using an ED25519 key in my ssh-agent. Once connected

Dear OpenSSH devs, I came accross this paper yesterday. http://eprint.iacr.org/2011/232 It states that they were able to recover ECDSA keys from TLS servers by using timing attacks agains OpenSSL's ECDSA implementation. Is that known to be exploitable by OpenSSH ? (In my understanding, it's easy to get a payload signed by ECDSA during the key exchange so my opinion is that it is).

Here you go: OpenSSH_7.9p1, OpenSSL 1.1.1d 10 Sep 2019 debug1: Reading configuration data /home/ryantm/.ssh/config debug1: /home/ryantm/.ssh/config line 4: Applying options for * debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 13: Applying options for * debug2: resolving "{REDACTED}" port 22 debug2: ssh_connect_direct debug1: Connecting to

https://bugzilla.mindrot.org/show_bug.cgi?id=1978 Bug #: 1978 Summary: ECDSA & SHA256 support in SSHFS DNS records Classification: Unclassified Product: Portable OpenSSH Version: 5.9p1 Platform: All URL: https://tools.ietf.org/html/draft-os-ietf-sshfp-ecdsa- sha2-07 OS/Version: All

Hi, I have made a patch for enabling the use of ECDSA keys in the PKCS#11 support of ssh-agent which will be of interest to other users. I have tested it with P-256 keys. P-384 and P-521 should work out-of-the box. The code is ready for non-FIPS curves (named or explicit), but OpenSSH currently limits ECDSA to those 3 curves. At high level it works like the support for RSA, but because of

https://bugzilla.mindrot.org/show_bug.cgi?id=1912 Summary: 5.8 ssh-keysign lacks ECDSA support Product: Portable OpenSSH Version: 5.8p2 Platform: All OS/Version: All Status: NEW Severity: critical Priority: P2 Component: Miscellaneous AssignedTo: unassigned-bugs at mindrot.org ReportedBy:

https://bugzilla.mindrot.org/show_bug.cgi?id=1961 Bug #: 1961 Summary: ECDSA memory leak Classification: Unclassified Product: Portable OpenSSH Version: -current Platform: All OS/Version: All Status: NEW Severity: normal Priority: P2 Component: ssh AssignedTo: unassigned-bugs at

Hi, I'm interested in extending OpenSSH's PKCS#11 code to support ECDSA keys, but have so far been unable to find anyone who can sell me a smartcard that supports it. They certainly exist - AFAIK it's required by the US PIV standard, but obtaining cards that support it in single digit quantities seems all but impossible. Can anybody on this list help? I'd want 2-6 cards/tokens

https://bugzilla.mindrot.org/show_bug.cgi?id=1862 Summary: document ECDSA within the "-b" option of the ssh-keygen manpage Product: Portable OpenSSH Version: 5.8p1 Platform: All OS/Version: All Status: NEW Severity: enhancement Priority: P2 Component: Documentation

https://bugzilla.mindrot.org/show_bug.cgi?id=2474 Bug ID: 2474 Summary: Enabling ECDSA in PKCS#11 support for ssh-agent Product: Portable OpenSSH Version: 7.1p1 Hardware: All OS: All Status: NEW Severity: enhancement Priority: P5 Component: ssh-agent Assignee: unassigned-bugs

commit 763769621d271d92204ed27552d75448587c1ac0 Author: Dor Laor <dor.laor@qumranet.com> Date: Wed Dec 12 14:52:00 2007 +0200 [virtio-net][PATCH] Don't arm tx hrtimer with a constant 50us each transmit The current start_xmit sets 500us hrtimer to kick the host. The problem is that if another xmit happens before the timer was fired then the first xmit will have to

commit 763769621d271d92204ed27552d75448587c1ac0 Author: Dor Laor <dor.laor@qumranet.com> Date: Wed Dec 12 14:52:00 2007 +0200 [virtio-net][PATCH] Don't arm tx hrtimer with a constant 50us each transmit The current start_xmit sets 500us hrtimer to kick the host. The problem is that if another xmit happens before the timer was fired then the first xmit will have to

Here's a recently-published paper that describes a flush & reload attack on OpenSSL's ECDSA implementation: http://eprint.iacr.org/2014/140.pdf According to the authors, snooping a single signing round is sufficient to recover the secret key. --mancha