JWT (HS256 Expired) — SAMPLE
SAMPLE HS256 JWT with a past exp claim — for expiry-validation harnesses.
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Specifications
- Alg
- HS256
- Expired
- true
- Exp
- 1609459200
- Sample Only
- true
What is a .jwt file?
A JWT (JSON Web Token) is a compact, URL-safe token made of three base64url-encoded parts — a header, a payload of claims, and a signature — separated by dots. It is widely used to carry authentication and authorisation claims between services.
How to use this file
Use a sample JWT to test token decoding, claim extraction, and signature verification. Never use an example token's secret in production.
How to use this file for testing
“JWT (HS256 Expired) — SAMPLE” is a deterministic Novus Examples fixture for JWT / JWKS testing, Error handling. Unsigned and SAMPLE-signed JWT variants plus JWKS documents — published sample material only, for auth parser tests.
Documented properties for this file: JWT · 281 bytes. Compare results against paired or grouped companions on this page when present (clean↔damaged, searchable↔scanned, or format twins) so scores stay reproducible across runs.
Download the file once, keep the path stable in CI or local scripts, and treat the spec table as the contract: dimensions, seeds, field lists, and roles are intentional. Corrupt or invalid samples are labelled as such — expect parsers to fail loudly rather than silently accept them.
This is published, SAMPLE-only security material — never a real secret. Point certificate, key, or token parsers at it, test PEM/DER decoding and PKCS handling, and confirm your tooling reads the documented fields; any sample password is printed on this page.
These JSON fixtures are synthetic SAMPLE auth or tool-call shapes for harnesses — never production secrets or live tokens. Validate schema fields and alg variants against the documented role.
Code examples
cut -d. -f1 sample-expired-hs256.jwt | base64 -d; echo
cut -d. -f2 sample-expired-hs256.jwt | base64 -d; echo # payload claimsRelated files
- jwtJWT — Intentionally Invalid SegmentsIntentionally invalid JWT (truncated) for parser error-path tests.
- jsonJWKS (Empty Keys) — SAMPLEEmpty JWKS keys array for edge-case JWKS loaders.
- jsonOAuth Error — Insufficient ScopeOAuth 2.0 SAMPLE error JSON (insufficient_scope) for client error-path tests.
- jsonOAuth Error — Invalid ClientOAuth 2.0 SAMPLE error JSON (invalid_client) for client error-path tests.
- jsonOAuth Error — Invalid GrantOAuth 2.0 SAMPLE error JSON (invalid_grant) for client error-path tests.
- jsonOAuth Error — Invalid ScopeOAuth 2.0 SAMPLE error JSON (invalid_scope) for client error-path tests.
Generated by generation/security_wave_g.py. Free for any use, no attribution required — license.