Python based VAPID key-pair generator

vapid_helper.py

import base64
import ecdsa

def generate_vapid_keypair():
  """
  Generate a new set of encoded key-pair for VAPID
  """
  pk = ecdsa.SigningKey.generate(curve=ecdsa.NIST256p)
  vk = pk.get_verifying_key()

  return {
    'private_key': base64.urlsafe_b64encode(pk.to_string()).strip("="),
    'public_key': base64.urlsafe_b64encode("\x04" + vk.to_string()).strip("=")
  }

Thanks for this code snippet. It worked like a charm.

Updated to work with recent Python versions

import base64
import ecdsa

def generate_vapid_keypair():
  """
  Generate a new set of encoded key-pair for VAPID
  """
  pk = ecdsa.SigningKey.generate(curve=ecdsa.NIST256p)
  vk = pk.get_verifying_key()

  return {
    'private_key': base64.urlsafe_b64encode(pk.to_string()).strip(b"="),
    'public_key': base64.urlsafe_b64encode(b"\x04" + vk.to_string()).strip(b"=")
  }

keypair = generate_vapid_keypair()

print(f"Private:\n\n{keypair['private_key'].decode('utf-8')}\n")
print(f"Public:\n\n{keypair['public_key'].decode('utf-8')}\n")

Thank you so much for this!