diff options
Diffstat (limited to 'lang/python/examples/signverify.py')
| -rwxr-xr-x | lang/python/examples/signverify.py | 86 |
1 files changed, 24 insertions, 62 deletions
diff --git a/lang/python/examples/signverify.py b/lang/python/examples/signverify.py index 6a63112a..7a24d719 100755 --- a/lang/python/examples/signverify.py +++ b/lang/python/examples/signverify.py @@ -1,77 +1,39 @@ #!/usr/bin/env python3 +# +# Copyright (C) 2016 g10 Code GmbH # Copyright (C) 2004,2008 Igor Belyi <[email protected]> # -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2 of the License, or -# (at your option) any later version. +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. # -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. # -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +# You should have received a copy of the GNU General Public License +# along with this program; if not, see <http://www.gnu.org/licenses/>. # Sample of unattended signing/verifying of a message. -# It uses keys for [email protected] generated by genkey.pl script +# It uses keys for [email protected] generated by genkey.py script import sys import os -from pyme import core +import pyme from pyme.constants.sig import mode -core.check_version(None) - -plain = core.Data(b"Test message") -sig = core.Data() -c = core.Context() -user = "joe" - -c.signers_clear() -# Add [email protected]'s keys in the list of signers -for sigkey in c.op_keylist_all(user, 1): - if sigkey.can_sign: - c.signers_add(sigkey) -if not c.signers_enum(0): - print("No secret %s's keys suitable for signing!" % user) - sys.exit(0) - -# This is a map between signer e-mail and its password -passlist = { - b"<[email protected]>": b"Crypt0R0cks" - } - -# callback will return password based on the e-mail listed in the hint. -c.set_passphrase_cb(lambda x,y,z: passlist[x[x.rindex("<"):]]) - -c.op_sign(plain, sig, mode.CLEAR) - -# Print out the signature (don't forget to rewind since signing put sig at EOF) -sig.seek(0, os.SEEK_SET) -signedtext = sig.read() -sys.stdout.buffer.write(signedtext) - -# Create Data with signed text. -sig2 = core.Data(signedtext) -plain2 = core.Data() +user = "joe+pyme" -# Verify. -c.op_verify(sig2, None, plain2) -result = c.op_verify_result() +with pyme.Context(pinentry_mode=pyme.constants.PINENTRY_MODE_LOOPBACK) as c: + keys = list(c.keylist(user)) + if len(keys) == 0: + sys.exit("No key matching {}.".format(user)) -# List results for all signatures. Status equal 0 means "Ok". -for index, sign in enumerate(result.signatures): - print("signature", index, ":") - print(" summary: ", sign.summary) - print(" status: ", sign.status) - print(" timestamp: ", sign.timestamp) - print(" fingerprint:", sign.fpr) - print(" uid: ", c.get_key(sign.fpr, 0).uids[0].uid) + c.signers = keys[:1] + c.set_passphrase_cb(lambda *args: "Crypt0R0cks") + signed_data, _ = c.sign(b"Test message", mode=mode.CLEAR) -# Print "unsigned" text. Rewind since verify put plain2 at EOF. -plain2.seek(0, os.SEEK_SET) -print("\n") -sys.stdout.buffer.write(plain2.read()) + data, result = c.verify(signed_data, verify=keys[:1]) + print("Data: {!r}\nSignature: {!s}".format(data, result.signatures[0])) |