similar to: Allow SHA1 deprecation for rsa-sha

On Wed, 5 Apr 2017, Jakub Jelen wrote: > Disabling SHA-1 for signatures sounds like a good idea these days (and was the > main reason why the extension created if I read it right [1]). > This leaves me confused if the use case without SHA1 was missed from the draft > or it was left as an implementation detail, that was not implemented in > OpenSSH. The reasons we didn't

https://bugzilla.mindrot.org/show_bug.cgi?id=2680 Bug ID: 2680 Summary: Regression in server-sig-algs offer in 7.4p1 (Deprecation of SHA1 is not being enforced) Product: Portable OpenSSH Version: 7.4p1 Hardware: Other OS: Linux Status: NEW Severity: enhancement Priority: P5

https://bugzilla.mindrot.org/show_bug.cgi?id=2746 Bug ID: 2746 Summary: RFE: Allow to disable SHA1 signatures for RSA Product: Portable OpenSSH Version: 7.5p1 Hardware: Other OS: Linux Status: NEW Severity: enhancement Priority: P5 Component: ssh Assignee: unassigned-bugs at

Hello folks, I am new here, so please be gentle :), and any help will be appreciated. Essentially what I am trying to do is, to use Jsch ( the java implementation of SSH client). it has support for Public key based authentication. Since there is a requirement for FIPS enablement, we are trying to use the Algorithm SHA256withRSA, instead of SHA1withRSA. When the code tries to verify the

Hi, I'm doing some test with a pkcs11 token that can only sign short messages. When connecting to one server, that reports pkalg rsa-sha2-512 blen 151, it fails to sign the pubkey because it is 83 bytes long. (sshd: OpenSSH_7.3p1) A older server that reports pkalg ssh-rsa blen 151, works perfectly as the pubkey signature required is only 35 bytes long. (sshd: OpenSSH_6.7p1) I am not sure

https://bugzilla.mindrot.org/show_bug.cgi?id=3213 Bug ID: 3213 Summary: openssh 8.3p1 will not use any type of RSA key for legacy servers if ssh-rsa is not in PubkeyAcceptedKeyTypes Product: Portable OpenSSH Version: 8.3p1 Hardware: Other OS: Linux Status: NEW

I am trying to understand the details of the deprecation notice. Because I am getting people asking me questions. And I don't know the answer. Therefore I am pushing the boulder uphill and asking here. :-) Damien Miller wrote: > Future deprecation notice > ========================= > > It is now possible[1] to perform chosen-prefix attacks against the > SHA-1 algorithm for

https://bugzilla.mindrot.org/show_bug.cgi?id=2568 Bug ID: 2568 Summary: ssh fails to authenticate using RSA keys when agent does not support sha256/512 signatures Product: Portable OpenSSH Version: -current Hardware: Other URL: https://github.com/connectbot/connectbot/issues/397 OS: Linux

On Tue, 2 Jun 2020 at 06:12, Christian Weisgerber <naddy at mips.inka.de> wrote > On 2020-06-01, Ethan Rahn <ethan.rahn at gmail.com> wrote: > > > With the upcoming deprecation of ssh-rsa I was trying to see what keys my > > version of OpenSSH ( 7.8p1 ) supports. I noticed that "ssh -Q key" does not > > actually list the suggested algorithms to

With the upcoming deprecation of ssh-rsa I was trying to see what keys my version of OpenSSH ( 7.8p1 ) supports. I noticed that "ssh -Q key" does not actually list the suggested algorithms to transition to ( rsa-sha2-256 and rsa-sha2-512 ) even though they are supported. Looking through the code, it looks like an issue with the arguments passed to sshkey_alg_list in ssh.c where it should

Hello, I have some users that connect to a server with their DSA key that is of type ssh-dss. I'm migrating (installing as new) the server where they connect to CentOS 8 + updates. I was not able to connect with the keys to this new server even after having added, as found in several internet pages, this directive at the end of /etc/ssh/sshd_config of the CentOS 8 server: # Accept also DSA

Hi, I've some arch linux systems running on two rasp pi's as server. I've been able to loging always, since a year or so, and since a week or two this is not the case anymore. I've enabled public key auth explicit: PubkeyAcceptedKeyTypes ssh-rsa PubkeyAuthentication yes The server is running version 7.9p1 It looks like there has been introduced: - a new required flag which I

https://bugzilla.mindrot.org/show_bug.cgi?id=3253 Bug ID: 3253 Summary: ssh-keygen man page still lists deprecated key types for -t Product: Portable OpenSSH Version: 8.4p1 Hardware: Other OS: Linux Status: NEW Severity: minor Priority: P5 Component: ssh-keygen

Hello, as a follow-up on my mail some time last month where we were facing weird issues when authenticating to new OpenSSH servers, I went down the road to investigate what is really going on there and I found out that even though all the logs in client and server happily say that the SHA2 extension is used, under the hood there is just SHA1. This is because the different agents are ignoring the

$ ssh -Q HostKeyAlgorithms Unsupported query "HostKeyAlgorithms" $ ssh -V OpenSSH_7.4p1, OpenSSL 1.0.2u 20 Dec 2019 On Mon, Mar 2, 2020 at 2:24 PM Christian Hesse <list at eworm.de> wrote: > Luveh Keraph <1.41421 at gmail.com> on Mon, 2020/03/02 14:07: > > When I do ssh -Q key, where ssh is the OpenSSH 7.4p1 client, I get the > > following output: > >

I've expressed several concerns with enabling UpdateHostKeys by default, none of which were even commented on, so this topic seems to not be in any way open for discussion, but I'll still add one more thing here. Peter Stuge wrote: > Subject: Re: UpdateHostkeys now enabled by default > Date: Mon, 5 Oct 2020 11:22:29 +0000 .. > I do not disagree with progressive key management, we

Hi, One of our users who is running an OS (I think it's the latest beta macOS 10.14.1) with ssh version "OpenSSH_7.8p1, LibreSSL 2.7.3" is unable to use our user SSH RSA certificates to authenticate to our servers (which are running "OpenSSH_7.4p1, OpenSSL 1.0.2k-fips 26 Jan 2017"). We see this error on the client side: debug1: kex_input_ext_info:

Il giorno gio 22 nov 2018 alle ore 21:24 Stuart Henderson <stu at spacehopper.org> ha scritto: > > On 2018/11/22 19:55, owl700 at gmail.com wrote: > > Hi, I have compatibility issues with the latest version of > > openssh-server and an old dropbear client, the dopbear client stops at > > preauth > > > > ov 22 14:34:03 myhostname sshd[3905]: debug1: Client

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

For the last few releases, there has been a notice that ssh-rsa will be deprecated in a near-future release. Is there a target release for this deprecation to take effect? I saw in the 8.4 release notes that?UpdateHostKeys is going to be default enabled in the next release to prepare for this. Is it likely that 8.6 will deprecate ssh-rsa after a release cycle of UpdateHostKeys being default or are