Jwudtool Tutorial 【SIMPLE】
Happy debugging! This tutorial is for educational purposes only. Only test tokens you own or have permission to analyze.
✗ Signature mismatch For RS256 tokens, use a public key: jwudtool tutorial
jwudtool version # Output: jwudtool 0.2.0 | Command | Purpose | |---------|---------| | decode | Decode header + payload without verifying signature | | verify | Check signature using a secret or public key | | forge | Create a new token from an existing one (change claims) | | fuzz | Test token against common attacks | Tutorial: Decode a JWT Given this sample token: Happy debugging
"sub": "1234567890", "name": "John Doe", "iat": 1516239022 ✗ Signature mismatch For RS256 tokens, use a
jwudtool verify --pubkey public.pem <token> Need to change a claim for testing? Clone and modify:
jwudtool decode eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...
✓ Signature valid If invalid:
