#!/usr/bin/env python
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#
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# This file is part of pyasn1-modules software.
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#
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# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
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# License: http://pyasn1.sf.net/license.html
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#
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# Read X.509 CRL on stdin, print them pretty and encode back into
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# original wire format.
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# CRL can be generated with "openssl openssl ca -gencrl ..." commands.
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#
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import sys
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from pyasn1.codec.der import decoder
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from pyasn1.codec.der import encoder
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from pyasn1_modules import pem
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from pyasn1_modules import rfc2459
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if len(sys.argv) != 1:
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print("""Usage:
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$ cat crl.pem | %s""" % sys.argv[0])
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sys.exit(-1)
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asn1Spec = rfc2459.CertificateList()
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cnt = 0
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while True:
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idx, substrate = pem.readPemBlocksFromFile(sys.stdin, ('-----BEGIN X509 CRL-----', '-----END X509 CRL-----'))
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if not substrate:
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break
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key, rest = decoder.decode(substrate, asn1Spec=asn1Spec)
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if rest:
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substrate = substrate[:-len(rest)]
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print(key.prettyPrint())
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assert encoder.encode(key) == substrate, 'pkcs8 recode fails'
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cnt += 1
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print('*** %s CRL(s) re/serialized' % cnt)
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