Verify .p7s and Extract Original File

Python example to verify and unpack the contents of a .p7s to restore the original file.

Download Chilkat Python Library

import sys
import chilkat

crypt = chilkat.CkCrypt2()

#  Any string argument automatically begins the 30-day trial.
success = crypt.UnlockComponent("30-day trial")
if (success != True):
    print "Crypt component unlock failed"
    sys.exit()

#  Find our digital certificate from the Current User certificate store.
ccs = chilkat.CkCreateCS()

certStore = ccs.OpenCurrentUserStore()

cert = certStore.FindCertBySubjectCN("Chilkat Software, Inc.")
if (cert == None ):
    print cert.lastErrorText()

    sys.exit()

#  Verify and restore the original file:
crypt.SetVerifyCert(cert)

success = crypt.VerifyP7S("license.p7s","license2.rtf")
if (success == False):
    print crypt.lastErrorText()

    sys.exit()

print "Success!"