ÿØÿà JFIF    ÿÛ „  ( %"1!%)+...383,7(-.+  -+++--++++---+-+-----+---------------+---+-++7-----ÿÀ  ß â" ÿÄ     ÿÄ H    !1AQaq"‘¡2B±ÁÑð#R“Ò Tbr‚²á3csƒ’ÂñDS¢³$CÿÄ   ÿÄ %  !1AQa"23‘ÿÚ   ? ôÿ ¨pŸªáÿ —åYõõ\?àÒü©ŠÄï¨pŸªáÿ —åYõõ\?àÓü©ŠÄá 0Ÿªáÿ Ÿå[úƒ ú®ði~TÁbqÐ8OÕpÿ ƒOò¤Oè`–RÂáœá™êi€ßÉ< FtŸI“öÌ8úDf´°å}“¾œ6  öFá°y¥jñÇh†ˆ¢ã/ÃÐ:ªcÈ "Y¡ðÑl>ÿ ”ÏËte:qž\oäŠe÷󲍷˜HT4&ÿ ÓÐü6ö®¿øþßèô Ÿ•7Ñi’•j|“ñì>b…þS?*Óôÿ ÓÐü*h¥£ír¶ü UãSç‚Ÿ[AÐaè[ûª•õ&õj?†Éö+EzP—WeÒírJFt ‘BŒ†Ï‡%#tE Øz ¥OÛ«!1›üä±Í™%ºÍãö]°î(–:@<‹ŒÊö×òÆt¦ãº+‡¦%ÌÁ²h´OƒJŒtMÜ>ÀÜÊw3Y´•牋4ǍýʏTì>œú=Íwhyë,¾Ôò×õ¿ßÊa»«þˆѪQ|%6ž™A õ%:øj<>É—ÿ Å_ˆCbõ¥š±ý¯Ýƒï…¶|RëócÍf溪“t.СøTÿ *Ä¿-{†çàczůŽ_–^XþŒ±miB[X±d 1,é”zEù»& î9gœf™9Ð'.;—™i}!ôšåîqêÛ٤ёý£½ÆA–àôe"A$˝Úsäÿ ÷Û #°xŸëí(l »ý3—¥5m! rt`†0~'j2(]S¦¦kv,ÚÇ l¦øJA£Šƒ J3E8ÙiŽ:cÉžúeZ°€¯\®kÖ(79«Ž:¯X”¾³Š&¡* ….‰Ž(ÜíŸ2¥ª‡×Hi²TF¤ò[¨íÈRëÉ䢍mgÑ.Ÿ<öäS0í„ǹÁU´f#Vß;Õ–…P@3ío<ä-±»Ž.L|kªÀê›fÂ6@»eu‚|ÓaÞÆŸ…¨ááå>åŠ?cKü6ùTÍÆ”†sĤÚ;H2RÚ†õ\Ö·Ÿn'¾ ñ#ºI¤Å´%çÁ­‚â7›‹qT3Iï¨ÖÚ5I7Ë!ÅOóŸ¶øÝñØôת¦$Tcö‘[«Ö³šÒ';Aþ ¸èíg A2Z"i¸vdÄ÷.iõ®§)¿]¤À†–‡É&ä{V¶iŽ”.Ó×Õÿ û?h¬Mt–íª[ÿ Ñÿ ÌV(í}=ibÔ¡›¥¢±b Lô¥‡piη_Z<‡z§èŒ)iÖwiÇ 2hÙ3·=’d÷8éŽ1¦¸c¤µ€7›7Ø ð\á)} ¹fËí›pAÃL%âc2 í§æQz¿;T8sæ°qø)QFMð‰XŒÂ±N¢aF¨…8¯!U  Z©RÊ ÖPVÄÀÍin™Ì-GˆªÅËŠ›•zË}º±ŽÍFò¹}Uw×#ä5B¤{î}Ð<ÙD é©¤&‡ïDbàÁôMÁ." ¤‡ú*õ'VŽ|¼´Úgllº¼klz[Æüï÷Aób‡Eÿ dÑ»Xx9ÃÜ£ÁT/`¼¸vI±Ýµ·Ë‚“G³þ*Ÿû´r|*}<¨îºœ @¦mÄ’M¹”.œ«Y–|6ÏU¤jç¥ÕÞqO ˜kDÆÁ¨5ÿ š;Њ¦¦€GÙk \ –Þ=â¼=SͧµªS°ÚÍpÜãQűÀõ¬?ÃÁ1Ñ•õZà?hóœ€ L¦l{Y*K˜Ù›zc˜–ˆâ ø+¾ ­-Ök¥%ùEÜA'}ˆ><ÊIè“bpÍ/qÞâvoX€w,\úªò6Z[XdÒæ­@Ö—€$òJí#é>'°Ú ôª˜<)4ryÙ£|óAÅn5žêŸyÒäMÝ2{"}‰–¤l÷ûWX\l¾Á¸góÉOÔ /óñB¤f¸çñ[.P˜ZsÊË*ßT܈§QN¢’¡¨§V¼(Üù*eÕ“”5T¨‹Âê¥FŒã½Dü[8'Ò¥a…Ú¶k7a *•›¼'Ò·\8¨ª\@\õ¢¦íq+DÙrmÎ…_ªæ»ŠÓœ¡¯’Ré9MÅ×D™lælffc+ŒÑ,ý™ÿ ¯þǤ=Å’Á7µ÷ÚÛ/“Ü€ñýã¼àí¾ÕÑ+ƒ,uµMâÀÄbm:ÒÎPæ{˜Gz[ƒ¯«® KHà`ßØŠéí¯P8Aq.C‰ à€kòpj´kN¶qô€…Õ,ÜNŠª-­{Zö’æû44‰sŽè‰îVíRœÕm" 6?³D9¡ÇTíÅꋇ`4«¸ÝÁô ï’ýorqКÇZ«x4Žâéþuïf¹µö[P ,Q£éaX±`PÉÍZ ¸äYúg üAx ’6Lê‚xÝÓ*äQ  Ï’¨hÍ =²,6ï#rÃ<¯–£»ƒ‹,–ê•€ aÛsñ'%Æ"®ÛüìBᝠHÚ3ß°©$“XnœÖ’î2ËTeûìxîß ¦å¿çÉ ðK§þ{‘t‚Ϋ¬jéîZ[ ”š7L¥4VÚCE×]m¤Øy”ä4-dz£œ§¸x.*ãÊÊ b÷•h:©‡¦s`BTÁRû¾g⻩‹jø sF¢àJøFl‘È•Xᓁà~*j¯ +(ÚÕ6-£¯÷GŠØy‚<Ç’.F‹Hœw(+)ÜÜâÈzÄäT§FߘãÏ;DmVœ3Àu@mÚüXÝü•3B¨òÌÁÛ<·ÃÜ z,Ì@õÅ·d2]ü8s÷IôÞ¯^Ç9¢u„~ëAŸï4«M? 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""" Tests for L{twisted.conch.scripts.ckeygen}. """ import getpass import sys import os import subprocess from io import BytesIO, StringIO from twisted.python.compat import unicode, _PY3 from twisted.python.reflect import requireModule if requireModule('cryptography') and requireModule('pyasn1'): from twisted.conch.ssh.keys import (Key, BadKeyError, BadFingerPrintFormat, FingerprintFormats) from twisted.conch.scripts.ckeygen import ( changePassPhrase, displayPublicKey, printFingerprint, _saveKey, enumrepresentation) else: skip = "cryptography and pyasn1 required for twisted.conch.scripts.ckeygen" from twisted.python.filepath import FilePath from twisted.trial.unittest import TestCase from twisted.conch.test.keydata import ( publicRSA_openssh, privateRSA_openssh, privateRSA_openssh_encrypted, privateECDSA_openssh) def makeGetpass(*passphrases): """ Return a callable to patch C{getpass.getpass}. Yields a passphrase each time called. Use case is to provide an old, then new passphrase(s) as if requested interactively. @param passphrases: The list of passphrases returned, one per each call. @return: A callable to patch C{getpass.getpass}. """ passphrases = iter(passphrases) def fakeGetpass(_): return next(passphrases) return fakeGetpass class KeyGenTests(TestCase): """ Tests for various functions used to implement the I{ckeygen} script. """ def setUp(self): """ Patch C{sys.stdout} so tests can make assertions about what's printed. """ if _PY3: self.stdout = StringIO() else: self.stdout = BytesIO() self.patch(sys, 'stdout', self.stdout) def _testrun(self, keyType, keySize=None): filename = self.mktemp() if keySize is None: subprocess.call(['ckeygen', '-t', keyType, '-f', filename, '--no-passphrase']) else: subprocess.call(['ckeygen', '-t', keyType, '-f', filename, '--no-passphrase', '-b', keySize]) privKey = Key.fromFile(filename) pubKey = Key.fromFile(filename + '.pub') if keyType == 'ecdsa': self.assertEqual(privKey.type(), 'EC') else: self.assertEqual(privKey.type(), keyType.upper()) self.assertTrue(pubKey.isPublic()) def test_keygeneration(self): self._testrun('ecdsa', '384') self._testrun('ecdsa') self._testrun('dsa', '2048') self._testrun('dsa') self._testrun('rsa', '2048') self._testrun('rsa') def test_runBadKeytype(self): filename = self.mktemp() with self.assertRaises(subprocess.CalledProcessError): with open(os.devnull, "rb") as devnull: subprocess.check_call( ['ckeygen', '-t', 'foo', '-f', filename], stderr=devnull) def test_enumrepresentation(self): """ L{enumrepresentation} takes a dictionary as input and returns a dictionary with its attributes changed to enum representation. """ options = enumrepresentation({'format': 'md5-hex'}) self.assertIs(options['format'], FingerprintFormats.MD5_HEX) def test_enumrepresentationsha256(self): """ Test for format L{FingerprintFormats.SHA256-BASE64}. """ options = enumrepresentation({'format': 'sha256-base64'}) self.assertIs(options['format'], FingerprintFormats.SHA256_BASE64) def test_enumrepresentationBadFormat(self): """ Test for unsupported fingerprint format """ with self.assertRaises(BadFingerPrintFormat) as em: enumrepresentation({'format': 'sha-base64'}) self.assertEqual('Unsupported fingerprint format: sha-base64', em.exception.args[0]) def test_printFingerprint(self): """ L{printFingerprint} writes a line to standard out giving the number of bits of the key, its fingerprint, and the basename of the file from it was read. """ filename = self.mktemp() FilePath(filename).setContent(publicRSA_openssh) printFingerprint({'filename': filename, 'format': 'md5-hex'}) self.assertEqual( self.stdout.getvalue(), '2048 85:25:04:32:58:55:96:9f:57:ee:fb:a8:1a:ea:69:da temp\n') def test_printFingerprintsha256(self): """ L{printFigerprint} will print key fingerprint in L{FingerprintFormats.SHA256-BASE64} format if explicitly specified. """ filename = self.mktemp() FilePath(filename).setContent(publicRSA_openssh) printFingerprint({'filename': filename, 'format': 'sha256-base64'}) self.assertEqual( self.stdout.getvalue(), '2048 FBTCOoknq0mHy+kpfnY9tDdcAJuWtCpuQMaV3EsvbUI= temp\n') def test_printFingerprintBadFingerPrintFormat(self): """ L{printFigerprint} raises C{keys.BadFingerprintFormat} when unsupported formats are requested. """ filename = self.mktemp() FilePath(filename).setContent(publicRSA_openssh) with self.assertRaises(BadFingerPrintFormat) as em: printFingerprint({'filename': filename, 'format':'sha-base64'}) self.assertEqual('Unsupported fingerprint format: sha-base64', em.exception.args[0]) def test_saveKey(self): """ L{_saveKey} writes the private and public parts of a key to two different files and writes a report of this to standard out. """ base = FilePath(self.mktemp()) base.makedirs() filename = base.child('id_rsa').path key = Key.fromString(privateRSA_openssh) _saveKey(key, {'filename': filename, 'pass': 'passphrase', 'format': 'md5-hex'}) self.assertEqual( self.stdout.getvalue(), "Your identification has been saved in %s\n" "Your public key has been saved in %s.pub\n" "The key fingerprint in is:\n" "85:25:04:32:58:55:96:9f:57:ee:fb:a8:1a:ea:69:da\n" % ( filename, filename)) self.assertEqual( key.fromString( base.child('id_rsa').getContent(), None, 'passphrase'), key) self.assertEqual( Key.fromString(base.child('id_rsa.pub').getContent()), key.public()) def test_saveKeyECDSA(self): """ L{_saveKey} writes the private and public parts of a key to two different files and writes a report of this to standard out. Test with ECDSA key. """ base = FilePath(self.mktemp()) base.makedirs() filename = base.child('id_ecdsa').path key = Key.fromString(privateECDSA_openssh) _saveKey(key, {'filename': filename, 'pass': 'passphrase', 'format': 'md5-hex'}) self.assertEqual( self.stdout.getvalue(), "Your identification has been saved in %s\n" "Your public key has been saved in %s.pub\n" "The key fingerprint in is:\n" "1e:ab:83:a6:f2:04:22:99:7c:64:14:d2:ab:fa:f5:16\n" % ( filename, filename)) self.assertEqual( key.fromString( base.child('id_ecdsa').getContent(), None, 'passphrase'), key) self.assertEqual( Key.fromString(base.child('id_ecdsa.pub').getContent()), key.public()) def test_saveKeysha256(self): """ L{_saveKey} will generate key fingerprint in L{FingerprintFormats.SHA256-BASE64} format if explicitly specified. """ base = FilePath(self.mktemp()) base.makedirs() filename = base.child('id_rsa').path key = Key.fromString(privateRSA_openssh) _saveKey(key, {'filename': filename, 'pass': 'passphrase', 'format': 'sha256-base64'}) self.assertEqual( self.stdout.getvalue(), "Your identification has been saved in %s\n" "Your public key has been saved in %s.pub\n" "The key fingerprint in is:\n" "FBTCOoknq0mHy+kpfnY9tDdcAJuWtCpuQMaV3EsvbUI=\n" % ( filename, filename)) self.assertEqual( key.fromString( base.child('id_rsa').getContent(), None, 'passphrase'), key) self.assertEqual( Key.fromString(base.child('id_rsa.pub').getContent()), key.public()) def test_saveKeyBadFingerPrintformat(self): """ L{_saveKey} raises C{keys.BadFingerprintFormat} when unsupported formats are requested. """ base = FilePath(self.mktemp()) base.makedirs() filename = base.child('id_rsa').path key = Key.fromString(privateRSA_openssh) with self.assertRaises(BadFingerPrintFormat) as em: _saveKey(key, {'filename': filename, 'pass': 'passphrase', 'format': 'sha-base64'}) self.assertEqual('Unsupported fingerprint format: sha-base64', em.exception.args[0]) def test_saveKeyEmptyPassphrase(self): """ L{_saveKey} will choose an empty string for the passphrase if no-passphrase is C{True}. """ base = FilePath(self.mktemp()) base.makedirs() filename = base.child('id_rsa').path key = Key.fromString(privateRSA_openssh) _saveKey(key, {'filename': filename, 'no-passphrase': True, 'format': 'md5-hex'}) self.assertEqual( key.fromString( base.child('id_rsa').getContent(), None, b''), key) def test_saveKeyECDSAEmptyPassphrase(self): """ L{_saveKey} will choose an empty string for the passphrase if no-passphrase is C{True}. """ base = FilePath(self.mktemp()) base.makedirs() filename = base.child('id_ecdsa').path key = Key.fromString(privateECDSA_openssh) _saveKey(key, {'filename': filename, 'no-passphrase': True, 'format': 'md5-hex'}) self.assertEqual( key.fromString( base.child('id_ecdsa').getContent(), None), key) def test_saveKeyNoFilename(self): """ When no path is specified, it will ask for the path used to store the key. """ base = FilePath(self.mktemp()) base.makedirs() keyPath = base.child('custom_key').path import twisted.conch.scripts.ckeygen self.patch(twisted.conch.scripts.ckeygen, 'raw_input', lambda _: keyPath) key = Key.fromString(privateRSA_openssh) _saveKey(key, {'filename': None, 'no-passphrase': True, 'format': 'md5-hex'}) persistedKeyContent = base.child('custom_key').getContent() persistedKey = key.fromString(persistedKeyContent, None, b'') self.assertEqual(key, persistedKey) def test_displayPublicKey(self): """ L{displayPublicKey} prints out the public key associated with a given private key. """ filename = self.mktemp() pubKey = Key.fromString(publicRSA_openssh) FilePath(filename).setContent(privateRSA_openssh) displayPublicKey({'filename': filename}) displayed = self.stdout.getvalue().strip('\n') if isinstance(displayed, unicode): displayed = displayed.encode("ascii") self.assertEqual( displayed, pubKey.toString('openssh')) def test_displayPublicKeyEncrypted(self): """ L{displayPublicKey} prints out the public key associated with a given private key using the given passphrase when it's encrypted. """ filename = self.mktemp() pubKey = Key.fromString(publicRSA_openssh) FilePath(filename).setContent(privateRSA_openssh_encrypted) displayPublicKey({'filename': filename, 'pass': 'encrypted'}) displayed = self.stdout.getvalue().strip('\n') if isinstance(displayed, unicode): displayed = displayed.encode("ascii") self.assertEqual( displayed, pubKey.toString('openssh')) def test_displayPublicKeyEncryptedPassphrasePrompt(self): """ L{displayPublicKey} prints out the public key associated with a given private key, asking for the passphrase when it's encrypted. """ filename = self.mktemp() pubKey = Key.fromString(publicRSA_openssh) FilePath(filename).setContent(privateRSA_openssh_encrypted) self.patch(getpass, 'getpass', lambda x: 'encrypted') displayPublicKey({'filename': filename}) displayed = self.stdout.getvalue().strip('\n') if isinstance(displayed, unicode): displayed = displayed.encode("ascii") self.assertEqual( displayed, pubKey.toString('openssh')) def test_displayPublicKeyWrongPassphrase(self): """ L{displayPublicKey} fails with a L{BadKeyError} when trying to decrypt an encrypted key with the wrong password. """ filename = self.mktemp() FilePath(filename).setContent(privateRSA_openssh_encrypted) self.assertRaises( BadKeyError, displayPublicKey, {'filename': filename, 'pass': 'wrong'}) def test_changePassphrase(self): """ L{changePassPhrase} allows a user to change the passphrase of a private key interactively. """ oldNewConfirm = makeGetpass('encrypted', 'newpass', 'newpass') self.patch(getpass, 'getpass', oldNewConfirm) filename = self.mktemp() FilePath(filename).setContent(privateRSA_openssh_encrypted) changePassPhrase({'filename': filename}) self.assertEqual( self.stdout.getvalue().strip('\n'), 'Your identification has been saved with the new passphrase.') self.assertNotEqual(privateRSA_openssh_encrypted, FilePath(filename).getContent()) def test_changePassphraseWithOld(self): """ L{changePassPhrase} allows a user to change the passphrase of a private key, providing the old passphrase and prompting for new one. """ newConfirm = makeGetpass('newpass', 'newpass') self.patch(getpass, 'getpass', newConfirm) filename = self.mktemp() FilePath(filename).setContent(privateRSA_openssh_encrypted) changePassPhrase({'filename': filename, 'pass': 'encrypted'}) self.assertEqual( self.stdout.getvalue().strip('\n'), 'Your identification has been saved with the new passphrase.') self.assertNotEqual(privateRSA_openssh_encrypted, FilePath(filename).getContent()) def test_changePassphraseWithBoth(self): """ L{changePassPhrase} allows a user to change the passphrase of a private key by providing both old and new passphrases without prompting. """ filename = self.mktemp() FilePath(filename).setContent(privateRSA_openssh_encrypted) changePassPhrase( {'filename': filename, 'pass': 'encrypted', 'newpass': 'newencrypt'}) self.assertEqual( self.stdout.getvalue().strip('\n'), 'Your identification has been saved with the new passphrase.') self.assertNotEqual(privateRSA_openssh_encrypted, FilePath(filename).getContent()) def test_changePassphraseWrongPassphrase(self): """ L{changePassPhrase} exits if passed an invalid old passphrase when trying to change the passphrase of a private key. """ filename = self.mktemp() FilePath(filename).setContent(privateRSA_openssh_encrypted) error = self.assertRaises( SystemExit, changePassPhrase, {'filename': filename, 'pass': 'wrong'}) self.assertEqual('Could not change passphrase: old passphrase error', str(error)) self.assertEqual(privateRSA_openssh_encrypted, FilePath(filename).getContent()) def test_changePassphraseEmptyGetPass(self): """ L{changePassPhrase} exits if no passphrase is specified for the C{getpass} call and the key is encrypted. """ self.patch(getpass, 'getpass', makeGetpass('')) filename = self.mktemp() FilePath(filename).setContent(privateRSA_openssh_encrypted) error = self.assertRaises( SystemExit, changePassPhrase, {'filename': filename}) self.assertEqual( 'Could not change passphrase: Passphrase must be provided ' 'for an encrypted key', str(error)) self.assertEqual(privateRSA_openssh_encrypted, FilePath(filename).getContent()) def test_changePassphraseBadKey(self): """ L{changePassPhrase} exits if the file specified points to an invalid key. """ filename = self.mktemp() FilePath(filename).setContent(b'foobar') error = self.assertRaises( SystemExit, changePassPhrase, {'filename': filename}) if _PY3: expected = "Could not change passphrase: cannot guess the type of b'foobar'" else: expected = "Could not change passphrase: cannot guess the type of 'foobar'" self.assertEqual(expected, str(error)) self.assertEqual(b'foobar', FilePath(filename).getContent()) def test_changePassphraseCreateError(self): """ L{changePassPhrase} doesn't modify the key file if an unexpected error happens when trying to create the key with the new passphrase. """ filename = self.mktemp() FilePath(filename).setContent(privateRSA_openssh) def toString(*args, **kwargs): raise RuntimeError('oops') self.patch(Key, 'toString', toString) error = self.assertRaises( SystemExit, changePassPhrase, {'filename': filename, 'newpass': 'newencrypt'}) self.assertEqual( 'Could not change passphrase: oops', str(error)) self.assertEqual(privateRSA_openssh, FilePath(filename).getContent()) def test_changePassphraseEmptyStringError(self): """ L{changePassPhrase} doesn't modify the key file if C{toString} returns an empty string. """ filename = self.mktemp() FilePath(filename).setContent(privateRSA_openssh) def toString(*args, **kwargs): return '' self.patch(Key, 'toString', toString) error = self.assertRaises( SystemExit, changePassPhrase, {'filename': filename, 'newpass': 'newencrypt'}) if _PY3: expected = ( "Could not change passphrase: cannot guess the type of b''") else: expected = ( "Could not change passphrase: cannot guess the type of ''") self.assertEqual(expected, str(error)) self.assertEqual(privateRSA_openssh, FilePath(filename).getContent()) def test_changePassphrasePublicKey(self): """ L{changePassPhrase} exits when trying to change the passphrase on a public key, and doesn't change the file. """ filename = self.mktemp() FilePath(filename).setContent(publicRSA_openssh) error = self.assertRaises( SystemExit, changePassPhrase, {'filename': filename, 'newpass': 'pass'}) self.assertEqual( 'Could not change passphrase: key not encrypted', str(error)) self.assertEqual(publicRSA_openssh, FilePath(filename).getContent())