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#!/usr/bin/env python
#
# This file is part of pyasn1-modules software.
#
# Copyright (c) 2005-2019, Ilya Etingof <etingof@gmail.com>
# License: http://snmplabs.com/pyasn1/license.html
#
# Read ASN.1/PEM X.509 certificate requests (PKCS#10 format) on stdin,
# parse each into plain text, then build substrate from it
#
import sys
from pyasn1.codec.der import decoder
from pyasn1.codec.der import encoder
from pyasn1_modules import pem
from pyasn1_modules import rfc2314
if len(sys.argv) != 1:
print("""Usage:
$ cat certificateRequest.pem | %s""" % sys.argv[0])
sys.exit(-1)
certType = rfc2314.CertificationRequest()
certCnt = 0
while True:
idx, substrate = pem.readPemBlocksFromFile(
sys.stdin, ('-----BEGIN CERTIFICATE REQUEST-----',
'-----END CERTIFICATE REQUEST-----')
)
if not substrate:
break
cert, rest = decoder.decode(substrate, asn1Spec=certType)
if rest:
substrate = substrate[:-len(rest)]
print(cert.prettyPrint())
assert encoder.encode(cert) == substrate, 'cert recode fails'
certCnt += 1
print('*** %s PEM certificate request(s) de/serialized' % certCnt)
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