---
title: "A registered signing key, by id"
method: GET
path: "/api/v2/evidence/keys"
tags: ["Evidence"]
---

# A registered signing key, by id

`GET /api/v2/evidence/keys`

## Request

- Base URL: `https://api.riskrouter.eu`
- URL: `https://api.riskrouter.eu/api/v2/evidence/keys`
- Auth: none declared

Public: a public key is public, and a verifier of a v3 leaf needs it. Answers the key and when it was registered, never whose it is.

## Query parameters

- `key_id` string, required

## Response `200`

The key.

- object
  - `ok` boolean
  - `key_id` string
  - `public_key` SignerPublicKey: A P-256 public key in JWK form. Its id is the first 16 hex characters of SHA-256 over the JSON array [x, y].
    - `kty` 'EC', required
    - `crv` 'P-256', required
    - `x` string, required
    - `y` string, required
  - `registered_at` string

## Other responses

- `400`: Every error carries the same envelope with a stable code.
- `404`: Every error carries the same envelope with a stable code.
- `429`: Every error carries the same envelope with a stable code.
- `502`: Every error carries the same envelope with a stable code.
- `503`: Every error carries the same envelope with a stable code.

---

[API](https://skmtc.dev/riskrouter/apis/riskrouter-api.md) · [All operations](https://skmtc.dev/riskrouter/apis/riskrouter-api/llms.txt) · [OpenAPI document](https://skmtc.dev/riskrouter/apis/riskrouter-api/revisions/5fee45dc6d1f?raw)