CodeSampleX

Sample

verify EncryptJWT in pkg:npm/jose@6.2.9

sha256:58461617fbb89b24a186b39db05eb1bdb5d1e151bbc382f03100bb99d2e60223

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 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

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 EncryptJWT in pkg:npm/jose@6.2.9
Packages
Symbols
  • EncryptJWT
Environment
node 22.23.2
Created
2026-08-26T10:59:25Z

Contract

  1. EncryptJWT creates compact 5-part JWE strings using direct symmetric encryption with A256GCM and jwtDecrypt verifies claims and protected header
  2. EncryptJWT constructor rejects non-object payloads such as strings or null with TypeError
  3. EncryptJWT encrypt rejects with JWEInvalid when called before setting headers
  4. EncryptJWT encrypt rejects with JWEInvalid when protected header lacks enc parameter
  5. jwtDecrypt rejects incorrect secret keys with JWEDecryptionFailed
  6. jwtDecrypt rejects tampered ciphertext with JWEDecryptionFailed
  7. jwtDecrypt rejects malformed compact JWE strings with JWEInvalid
  8. jwtDecrypt rejects expired tokens with JWTExpired
  9. jwtDecrypt rejects mismatched issuer or audience with JWTClaimValidationFailed
  10. EncryptJWT and jwtDecrypt support asymmetric key agreement with ECDH-ES+A256KW
  11. jwtDecrypt supports dynamic key resolution via key resolver callback function

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous