tkey-ssh-agent を Homebrew, apk, apt, Nix, winget でインストール

プロジェクトリンク

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• tkey-ssh-agent

プロジェクトの歴史

The official README describes tkey-ssh-agent as an OpenSSH-compatible agent for use with the Tillitis TKey USB security token. The project embeds a signer device application and warns users to prefer tagged releases because changes to the signer app, user-supplied secret, or user device secret can change the resulting SSH key pair.

The release notes show an early v0.0.1 phase focused on a revised SSH agent for Linux distributions, daemon operation, udev-based TKey detection, and pinentry for the user-supplied secret. Version 1.0.0 separated related apps, libraries, and packages into their own repositories, embedded the binary signer to enable go install, and added release/package builds with GoReleaser.

採用の歴史

The project is aimed at TKey users who want SSH authentication without storing private keys on a general-purpose computer. Its packaging path followed both source installs and OS packages: the README mentions operating-system package systems, go install, manual pages, udev rules, and systemd units.

The supplied package-manager facts show availability through Homebrew, Alpine/apk, Debian source packaging, Nix, and winget, which is unusually broad for a hardware-token-specific SSH utility.

使われ方

A typical use starts the agent on a chosen socket, optionally selects the serial port, then points SSH_AUTH_SOCK at that socket before using OpenSSH. The README also documents a public-key display mode and USS flags for user-supplied secrets.

For package nerds, the interesting part is that the installed CLI is only half the artifact: udev rules, systemd service files, manual pages, embedded signer binaries, and reproducible release packages all matter for a usable install.

パッケージ好きにとっての重要性

tkey-ssh-agent sits at the intersection of open hardware, SSH agent ergonomics, and distro packaging. Its release notes make key continuity a packaging concern because changing firmware, signer binaries, or secret handling can change the generated SSH identity.

It is a useful example of a niche security package where version pinning, tagged releases, and release notes are operationally important rather than cosmetic.

タイムライン

• v0.0.1: Release notes describe the revised SSH agent with daemon operation, udev detection, and pinentry support.
• v1.0.0: Related apps and libraries moved to separate repositories; embedded signer enabled go install; GoReleaser package builds added.
• 2026-03-24: GitHub releases page lists v1.1.1 with updated tkeyclient handling for TKey Unlocked.

Related projects

• Tillitis TKey is the hardware/software USB security token targeted by the agent.
• OpenSSH is the client ecosystem consuming the SSH agent socket.
• tkey-device-signer, tkeyclient, and tkeysign are related Tillitis components named in the release notes.

ソース

• https://github.com/tillitis/tkey-ssh-agent README for purpose, install, usage, USS, and build behavior
• https://github.com/tillitis/tkey-ssh-agent/blob/main/docs/release_notes.md for v0.0.1, v1.0.0, and v1.1.0 history
• https://github.com/tillitis/tkey-ssh-agent/releases for release chronology and package assets
• source_facts.package-manager for package availability