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NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a better openssh-portable alternative or higher similarity.
openssh-portable discussion
openssh-portable reviews and mentions
Posts with mentions or reviews of openssh-portable.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2025-04-07.
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20 years of Git. Still weird, still wonderful
Oh yeah, SSH signing is incredible. I've also migrated to it and didn't look back.
A couple of differences:
- it's possible to specify signing keys in a file inside the repository, and configure git to verify on merge (https://github.com/wiktor-k/ssh-signing/). I'm using that for my dot config repo to make sure I'm pulling only stuff I committed on my machines.
- SSH has TPM key support via PKCS11 or external agents, this makes it possible to easily roll out hardware backed keys
- SSH signatures have context separation, that is it's not possible to take your SSH commit signature and repurpose it (unlike OpenPGP)
- due to SSH keys being small the policy file is also small and readable, compare https://github.com/openssh/openssh-portable/blob/master/.git... with equivalent OpenPGP https://gitlab.com/sequoia-pgp/sequoia/-/blob/main/openpgp-p...
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Debian opens a can of username worms
I wonder how this will affect ssh. OpenSSH recently restricted more characters for valid usernames: https://github.com/openssh/openssh-portable/commit/7ef3787c8...
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RegreSSHion: RCE in OpenSSH's server, on glibc-based Linux systems
which lacks the #ifdef.
What could have prevented this? More eyes on the pull request? It's wild that software nearly the entire world relies on for secure access is maintained by seemingly just two people [2].
[1] https://github.com/openssh/openssh-portable/commit/752250caabda3dd24635503c4cd689b32a650794 - OpenSSH introduces options to penalize undesirable behavior
- OpenBSD – sshd(8) split into multiple binaries
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New startup sells coffee through SSH and exclusively through SSH
Default for the last 24 years according to https://github.com/openssh/openssh-portable/blame/385ecb31e1...
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Systemd Wants to Expand to Include a Sudo Replacement
They didn't need to use the library to make use of the systemd notify mechanism, which is simple to interface and quite a nice feature in the first place.
The free-standing implementation: https://github.com/openssh/openssh-portable/commit/08f579231...
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Terrapin Attack for prefix injection in SSH
Unless I'm misunderstanding what this is about RFC5647 merely points out that the sequence number is included as AAD due to RFC4253 requirements. The [email protected] specification is not exactly the most rigorous thing I've ever seen (https://github.com/openssh/openssh-portable/blob/master/PROT...) but reading it, the sequence number is only included in the IV, and not as AAD, which directly runs afoul of the RFC4253 section 6.4 requirement for it to be included in the MAC.
- SSH3: SSH using HTTP/3 and QUIC
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SSH keys stolen by stream of malicious PyPI and NPM packages
The key layout is described in https://github.com/openssh/openssh-portable/blob/master/PROT... and you can view it pretty easily via
cat private_key_here | head -n -1 | tail -n +2 | base64 -d | xxd
One I created in 2016 is using aes256-cbc with bcrypt for the kdf, which isn't awful at all.
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A note from our sponsor - InfluxDB
www.influxdata.com | 20 Jul 2025
Stats
Basic openssh-portable repo stats
51
3,436
9.7
6 days ago
openssh/openssh-portable is an open source project licensed under GNU General Public License v3.0 or later which is an OSI approved license.
The primary programming language of openssh-portable is C.
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