check_dane/cert.py

   1 #!/usr/bin/python3
   2
   3 from pyasn1_modules import rfc2459
   4 from pyasn1.codec.der import decoder, encoder
   5
   6
   7 def get_spki(certificate):
   8     cert = decoder.decode(certificate, asn1Spec=rfc2459.Certificate())[0]
   9     spki = cert['tbsCertificate']["subjectPublicKeyInfo"]
  10     return encoder.encode(spki)