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Created September 24, 2014 15:30
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Generate HMAC in Python
import hmac, hashlib, json, time, base64
SHARED_SECRET = 'sup3rs3cr3t!!'
def signString(string_to_sign, shared_secret):
return, string_to_sign, hashlib.sha512).digest()
if __name__ == '__main__':
payload = {
'name': 'joe smith',
'category': 'people',
'action': 'transport',
'where': 'pluto',
'timestamp': str(int(time.time()))
json_payload = json.dumps(payload)
signature = signString(json_payload, SHARED_SECRET)
encoded_signature = base64.urlsafe_b64encode(signature)
encoded_payload = base64.urlsafe_b64encode(json_payload)
print('/?data={}&signature={}').format(encoded_payload, encoded_signature)
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