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sang-d / check_jwt_sig.py
Created June 5, 2017 10:11 — forked from rondomondo/check_jwt_sig.py
Two methods/examples of how to decode and verify the signature of AWS cognito JWT web tokens externally. This uses RSA key pair and alternatively PKCS1_v1_5. See https://gist.github.com/rondomondo/efff911f2c41c295e23415e94e12b8d3 for example of signing and verification by downloading an ISSUERS PKI SSL certificate from the signers website, and h…
#!/usr/bin/env python
import os
import time
import json
import base64
import requests
import argparse
from base64 import urlsafe_b64decode, b64decode
from Crypto.Hash import SHA256, SHA512