similar to: Call for testing: OpenSSH 8.2

Hi, As of this morning, OpenSSH now has experimental U2F/FIDO support, with U2F being added as a new key type "sk-ecdsa-sha2-nistp256 at openssh.com" or "ecdsa-sk" for short (the "sk" stands for "security key"). If you're not familiar with U2F, this is an open standard for making inexpensive hardware security tokens. These are easily the cheapest way

On Fri, 15 Nov 2019, Damien Miller wrote: > On Fri, 1 Nov 2019, Damien Miller wrote: > > > Hi, > > > > As of this morning, OpenSSH now has experimental U2F/FIDO support, with > > U2F being added as a new key type "sk-ecdsa-sha2-nistp256 at openssh.com" > > or "ecdsa-sk" for short (the "sk" stands for "security key").

https://bugzilla.mindrot.org/show_bug.cgi?id=3188 Bug ID: 3188 Summary: Problems creating a second ecdsa-sk key for a second Yubikey Product: Portable OpenSSH Version: 8.3p1 Hardware: Other OS: Linux Status: NEW Severity: normal Priority: P5 Component: ssh-keygen

Hi, OpenSSH 8.4p1 is almost ready for release, so we would appreciate testing on as many platforms and systems as possible. This is a bugfix release. Snapshot releases for portable OpenSSH are available from http://www.mindrot.org/openssh_snap/ The OpenBSD version is available in CVS HEAD: http://www.openbsd.org/anoncvs.html Portable OpenSSH is also available via git using the instructions at

OpenSSH 8.2 has just been released. It will be available from the mirrors listed at http://www.openssh.com/ shortly. OpenSSH is a 100% complete SSH protocol 2.0 implementation and includes sftp client and server support. Once again, we would like to thank the OpenSSH community for their continued support of the project, especially those who contributed code or patches, reported bugs, tested

OpenSSH 8.2 has just been released. It will be available from the mirrors listed at http://www.openssh.com/ shortly. OpenSSH is a 100% complete SSH protocol 2.0 implementation and includes sftp client and server support. Once again, we would like to thank the OpenSSH community for their continued support of the project, especially those who contributed code or patches, reported bugs, tested

OpenSSH 8.2 has just been released. It will be available from the mirrors listed at http://www.openssh.com/ shortly. OpenSSH is a 100% complete SSH protocol 2.0 implementation and includes sftp client and server support. Once again, we would like to thank the OpenSSH community for their continued support of the project, especially those who contributed code or patches, reported bugs, tested

Stuart Henderson wrote: >> This is why I push for challenge/response tokens, not simply >> cert authentication, and really wish that FIDO (such as yubikey) >> was an option, but the discussions I've seen about suporting >> that have not been encouraging. > > hmm? That works pretty well in OpenSSH. hmm, what I'm finding doesn't seem to use the FIDO

OpenSSH 8.4 has just been released. It will be available from the mirrors listed at https://www.openssh.com/ shortly. OpenSSH is a 100% complete SSH protocol 2.0 implementation and includes sftp client and server support. Once again, we would like to thank the OpenSSH community for their continued support of the project, especially those who contributed code or patches, reported bugs, tested

I've had a patch on the bugzilla for a while related to U2F with support for a few additional settings such as providing a path to a specific key to use instead of the first one found and setting if user presence is required when using the key. Is there any objection to folding those parts in if appropriate? Joseph, to offer comment on NIST P-256. There was originally quite a limited subset

Hello, I'm helping the Git for windows team and contributing in git-for-windows repository to help expand the OpenSSH support for fido2 devices on Windows. Currently we are using your internal implementation(sk-usbhic.c) however since Windows 10 version 1903 this requires administrator privileges. I'm trying to create a module for OpenSSH to use webauthn.dll instead of direct calling to

Hi Damien, On Nov 14, 2019, at 3:26 PM, Damien Miller <djm at mindrot.org> wrote: > On Fri, 1 Nov 2019, Damien Miller wrote: >> As of this morning, OpenSSH now has experimental U2F/FIDO support, with >> U2F being added as a new key type "sk-ecdsa-sha2-nistp256 at openssh.com" >> or "ecdsa-sk" for short (the "sk" stands for "security

I was recently looking at verifying the attestation data (ssh-sk-attest-v00) for a SK key, but I believe the data saved in this structure is insufficient for completing verification of the attestation. While the structure has enough information for U2F devices, FIDO2 devices sign their attestation over a richer "authData" blob [1] (concatenated with the challenge hash). The authData blob

Hi, OpenSSH 8.3p1 is almost ready for release, so we would appreciate testing on as many platforms and systems as possible. This is a bugfix release. Snapshot releases for portable OpenSSH are available from http://www.mindrot.org/openssh_snap/ The OpenBSD version is available in CVS HEAD: http://www.openbsd.org/anoncvs.html Portable OpenSSH is also available via git using the instructions at

Hi David, > hmm, what I'm finding doesn't seem to use the FIDO challenge/response to the > server, instead it looks like a public/private key that's unlocked with a touch, > possibly storing the private key on the hardware dongle (but it seems like > there's still a key you need to put on the client system) > > Quoting from the yubikey website: > OpenSSH

On Feb 17, 2020, at 9:45 PM, Damien Miller <djm at mindrot.org> wrote: > On Mon, 17 Feb 2020, Ron Frederick wrote: >> I?m trying out the ?resident key? functionality in OpenSSH 8.2, and >> I?m having trouble getting it to find keys that I?ve created. >> >> I?m trying to create a new resident key using: >> >> ssh-keygen -O resident -t ed25519-sk -f

On Tue, 2020-07-21 at 14:47 +1000, Damien Miller wrote: > On Mon, 20 Jul 2020, Jordan J wrote: [...] > > Firstly, would the following or some combination thereof be > > possible or is there an obvious impediment. Secondly, if it proved > > possible are the maintainers open to a patch providing it? > > > > 1. Update the SSH ecdsa-sk public key type to contain the

Hi, So I finally have time to test the u2f support but so far I haven't been very successful, Specifically, current HEAD has SSH_SK_VERSION_MAJOR 0x00040000 and I can't seem to find a matching libfido2 version, current HEAD of Yubico/libfido2 is 0x00020000 Is there a more up to date libfido2 or a particular commit of openssh-portable I should be using? thanks Sean

On 2024/10/21 12:02, David Lang via openssh-unix-dev wrote: > A cert is a single factor, so is a password. Cert authentication > is only two factor if you trust that the password is not stored > along with the cert (which is on the untrusted client) You can tell sshd to require *both* password and public key. > This is why I push for challenge/response tokens, not simply > cert

Hi, The main (and probably the only) use case of this PAM module is to let sudo authenticate users via their ssh-agent, therefore without having to type any password and without being tempted to use the NOPASSWD sudo option for such convenience. The principle is originally implemented by an existing module [0][1] and many pages that explain how to use it for such purpose can be found online.