crldump.py 1.1 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445
  1. #!/usr/bin/env python
  2. #
  3. # This file is part of pyasn1-modules software.
  4. #
  5. # Copyright (c) 2005-2019, Ilya Etingof <etingof@gmail.com>
  6. # License: http://snmplabs.com/pyasn1/license.html
  7. #
  8. # Read X.509 CRL on stdin, print them pretty and encode back into
  9. # original wire format.
  10. # CRL can be generated with "openssl openssl ca -gencrl ..." commands.
  11. #
  12. import sys
  13. from pyasn1.codec.der import decoder
  14. from pyasn1.codec.der import encoder
  15. from pyasn1_modules import pem
  16. from pyasn1_modules import rfc2459
  17. if len(sys.argv) != 1:
  18. print("""Usage:
  19. $ cat crl.pem | %s""" % sys.argv[0])
  20. sys.exit(-1)
  21. asn1Spec = rfc2459.CertificateList()
  22. cnt = 0
  23. while True:
  24. idx, substrate = pem.readPemBlocksFromFile(sys.stdin, ('-----BEGIN X509 CRL-----', '-----END X509 CRL-----'))
  25. if not substrate:
  26. break
  27. key, rest = decoder.decode(substrate, asn1Spec=asn1Spec)
  28. if rest:
  29. substrate = substrate[:-len(rest)]
  30. print(key.prettyPrint())
  31. assert encoder.encode(key) == substrate, 'pkcs8 recode fails'
  32. cnt += 1
  33. print('*** %s CRL(s) re/serialized' % cnt)