OSS TanbouOn this page
Overview
Portable OpenSSH ports SSH 2 clients, servers, scp, sftp, and key-management tools to many Unix-like systems. Public-key authentication and encrypted transport protect remote operations.
Features and best fit
Based on official documentation; not hands-on tested · Content checked:
Key features
Best fit
Fit server administration and automated authentication
It suits administrator logins, public-key authentication for Git or delivery jobs, and secure interactive or unattended transfers.
Sources: [1]
Before adoption
Review crypto dependencies and operational policy
Building needs a C89-or-later compiler, standard headers, and make. Available features depend on libcrypto and zlib, while sshd authentication, authorized keys, and update policy require separate design. LICENCE collects multiple BSD-style and component-specific terms.
Official sources
- [1]Portable OpenSSH README at V_10_2_P1(2026-10-05)
- [2]Portable OpenSSH INSTALL at V_10_2_P1(2026-10-05)
- [3]ssh-keygen manual at V_10_2_P1(2026-10-05)
- [4]Portable OpenSSH LICENCE at V_10_2_P1(2026-10-05)
Supplemental curator note
Use the pinned ssh-keygen only to create a temporary Ed25519 key, verify permissions and its SHA256 fingerprint without printing private contents, and leave sshd and host configuration untouched.
Try it in 3 steps
- 1
Fetch the pinned source
On a Unix-like system, install bash or zsh, Git, Autoconf 2.69, Automake 1.16.1, a C89-or-later compiler, make, standard headers, and zlib development headers and library; fetch V_10_2_P1 and continue in openssh-demo.
git clone --branch V_10_2_P1 --depth 1 https://github.com/openssh/openssh-portable.git openssh-demo && cd openssh-demo - 2
Build the pinned ssh-keygen
Let configure detect host libcrypto and zlib, then build only ssh-keygen without starting a server.
autoreconf && ./configure && make -j2 ssh-keygen - 3
Verify temporary-key permissions and fingerprint
Generate an Ed25519 key with mode 0600 in an owned temporary directory, print only its public-key SHA256 fingerprint, and delete the owned key on exit.
(tmp_dir=$(mktemp -d) || exit 1; trap 'rm -rf "$tmp_dir"' EXIT; umask 077; ./ssh-keygen -q -t ed25519 -N '' -C oss-tanbou-demo -f "$tmp_dir/id_ed25519" && mode=$(stat -c %a "$tmp_dir/id_ed25519" 2>/dev/null || stat -f %Lp "$tmp_dir/id_ed25519") && test "$mode" = 600 && (set -o pipefail; ./ssh-keygen -lf "$tmp_dir/id_ed25519.pub" -E sha256 | tee "$tmp_dir/fingerprint.txt") && grep -F 'SHA256:' "$tmp_dir/fingerprint.txt")
Growth
Growth trends · Last 30 days
4,033 Stars
Trend data is still being collected.
Development activity
Last 90 days · weekly
- Commits (last 30 days)
- 88
- Open PRs
- 147
Development activity is still being collected.
Built with
Categories and tags
Categories
GitHub data
GitHub dataView detailed GitHub data
GitHub Topics
- c
- security
- login
- file-sharing
- cryptography
- keychain
- Stars
- 4,033
- Forks
- 2,175
- Watchers
- 134
- Open issues
- 0
- Contributors
- 124
- Owner type
- Organization
- Primary language
- C
- License
- Not determined
- Repository last updated
- Oct 5, 2026
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