# openpubkey/opkssh

opkssh (OpenPubkey SSH)

Repository: https://github.com/openpubkey/opkssh
Canonical: https://ross.abutalabs.com/products/opkssh
Homepage: https://eprint.iacr.org/2023/296
Language: Go
License: Apache-2.0
License Family: permissive
Topics: oidc, openid-connect, ssh, ssh-keys
Last push: 2026-08-26T16:04:42+00:00

## Health v2 (maintenance only)
Score: 85/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 93, longevity 38
- inputs: {"age_days": 535, "days_push": 7, "days_rel": 50, "gap_med": 14, "n_releases_24m": 20}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2048, forks 105 (observed 2026-08-28T04:06:08.955337+00:00)

## What it is
opkssh is a Go CLI tool that enables SSH authentication via OpenID Connect identities instead of long-lived SSH keys. It generates SSH public keys containing PK Tokens and configures sshd to verify them, building on the OpenPubkey protocol.

## Use cases
- manage ssh access with email identities instead of ssh keys
- log into servers using google or microsoft accounts
- replace long-lived ssh keys with openid connect
- configure sshd to verify oidc-based ssh keys
- ssh with gitlab account credentials
- rotate ssh access automatically via identity provider

## When to choose
- you want ssh access tied to short-lived identity-provider sessions rather than static keys
- your organization already uses an oidc provider like keycloak, azure ad, or google workspace
- you need centralized, auditable ssh access management

## When to avoid
- you need ssh access without network access to an openid provider
- your environment requires traditional key-based or certificate-based ssh only
- you cannot modify sshd configuration on target servers

## Facets
- artifact type: cli-tool
- maturity: active
- function: auth, security, ssh
- domain: security, developer-tools, networking
- platform: windows, cli, go
- tags: ssh, oidc, openid-connect, pk-token, authentication, zero-trust, linux, macos

## Member repositories
- openpubkey/opkssh (main) score 85

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:08.955337+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:57:57.162041+00:00, confidence not recorded.
  - readme: https://github.com/openpubkey/opkssh (fetched 2026-08-28T04:06:08.955337+00:00, sha 7e7bef6ae288)
- Data as of 2026-08-30T08:39:29.467469+00:00.