CodeSampleX

Sample

verify importJWK in pkg:npm/jose@6.2.9

sha256:76fcd8cd260a2adae4ee2160ae506e46c7b91b3524185704b8f984617ee7c1e9

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
1
Signing keys that built it
1
Declared environment node 22 linux 24 · ubuntu · glibc 2.39 x64 node 22 javascript npm

Verification-run environments

Environment Contract Stages Run
node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22-alpine@sha256:c610fcdfb1d5…
2026-08-26

Case

HOW
Goal
verify importJWK in pkg:npm/jose@6.2.9
Packages
Symbols
  • importJWK
Environment
node 22
Created
2026-08-26T10:59:57Z

Contract

  1. assert importJWK with an oct JWK returns a Uint8Array containing decoded bytes, which can sign and verify an HS256 JWT
  2. assert importJWK with an RSA public JWK and RS256 returns a public CryptoKey, and an RSA private JWK returns a private CryptoKey that signs a JWT verified by the public CryptoKey
  3. assert importJWK with an EC P-256 JWK and ES256 returns CryptoKeys that sign and verify an ES256 JWT
  4. assert importJWK with an OKP Ed25519 JWK and EdDSA returns CryptoKeys that sign and verify an EdDSA JWT
  5. assert importJWK with extractable: true produces a CryptoKey with extractable set to true
  6. assert importJWK throws a TypeError when jwk is not an object or when an oct JWK is missing the k property
  7. assert importJWK throws a TypeError when alg is omitted for non-oct keys and jwk.alg is not present
  8. assert importJWK throws errors.JOSENotSupported with code ERR_JOSE_NOT_SUPPORTED when kty is unsupported
  9. assert importJWK returns a Promise and never throws synchronously, rejecting asynchronously on invalid input

Files

  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • src/index.mjs
  • test/contract.mjs

Download the source artifact (tar.gz)

Origin Seeder

anonymous