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°©$“XnœÖ’î2ËTeûìxîß ¦å¿çÉ ðK§þ{‘t‚Ϋ¬jéîZ[ ”š7L¥4VÚCE×]m¤Øy”ä4-dz£œ§¸x.*ãÊÊ b÷•h:©‡¦s`BTÁRû¾g⻩‹jø sF¢àJøFl‘È•Xᓁà~*j¯ +(ÚÕ6-£¯÷GŠØy‚<Ç’.F‹Hœw(+)ÜÜâÈzÄäT§FߘãÏ;DmVœ3Àu@mÚüXÝü•3B¨òÌÁÛ<·ÃÜ z,Ì@õÅ·d2]ü8s÷IôÞ¯^Ç9¢u„~ëAŸï4«M? K]­ÅàPl@s_ p:°¬ZR”´›JC[CS.h‹ƒïËœ«Æ]–÷ó‚wR×k7X‰k›‘´ù¦=¡«‰¨¨Â')—71ó’c‡Ðúµ `é.{§p¹ój\Ž{1h{o±Ý=áUÊïGÖŒõ–-BÄm+AZX¶¡ ïHðæ¥JmÙ;…ä¡Ÿˆ¦ ° äšiÉg«$üMk5¤L“’çÊvïâï ,=f“"íἊ5ô¬x6{ɏžID0e¸vçmi'︧ºð9$ò¹÷*£’9ÿ ²TÔ…×>JV¥}Œ}$p[bÔ®*[jzS*8 ”·T›Í–ñUîƒwo$áè=LT™ç—~ô·¤ÈÚ$榍q‰„+´kFm)ž‹©i–ËqÞŠ‰à¶ü( ‚•§ •°ò·‡#5ª•µÊ﯅¡X¨šÁ*F#TXJÊ ušJVÍ&=iÄs1‚3•'fý§5Ñ<=[íÞ­ PÚ;ѱÌ_~Ä££8rÞ ²w;’hDT°>ÈG¬8Á²ÚzŽ®ò®qZcqJêäÞ-ö[ܘbň±çb“Š¶31²n×iƒðÕ;1¶þÉ ªX‰,ßqÏ$>•î íZ¥Z 1{ç൵+ƒÕµ¥°T$§K]á»Ûï*·¤tMI’ÂZbŽÕiÒ˜}bÓ0£ª5›¨ [5Ž^ÝœWøÂÝh° ¢OWun£¤5 a2Z.G2³YL]jåtì”ä ÁÓ‘%"©<ÔúÊ°sº UZvä‡ÄiÆÒM .÷V·™ø#kèýiíÌ–ª)µT[)BˆõÑ xB¾B€ÖT¨.¥~ð@VĶr#¸ü*åZNDŽH;âi ],©£öØpù(šºãö¼T.uCê•4@ÿ GÕÛ)Cx›®0ø#:ÏðFÒbR\(€€Ä®fã4Þ‰Fä¯HXƒÅ,†öEÑÔÜ]Öv²?tLÃvBY£ú6Êu5ÅAQ³1‘’¬x–HŒÐ‡ ^ ¸KwJôÖŽ5×CÚ¨vÜ«/B0$×k°=ðbÇ(Ï)w±A†Á† 11Í=èQšµ626ŒÜ/`G«µ<}—-Ö7KEHÈÉðóȤmݱû±·ø«Snmá=“ä«šmݱŸ¡¶~ó·“äUóJæúòB|E LêŽy´jDÔ$G¢þÐñ7óR8ýÒ…Ç› WVe#·Ÿ p·Fx~•ݤF÷0Èÿ K¯æS<6’¡WШ; ´ÿ ¥Êø\Òuî†åÝ–VNœkÒ7oòX¨Á­Ø÷FÎÑä±g÷ÿ M~Çî=p,X´ ÝÌÚÅ‹’ÃjÖ.ØöÏñ qïQ¤ÓZE†° =6·]܈ s¸>v•Ž^Ý\wq9r‰Î\¸¡kURÒ$­*‹Nq?Þª*!sŠÆ:TU_u±T+øX¡ ®¹¡,ÄâÃBTsÜ$Ø›4m椴zÜK]’’›Pƒ @€#â˜`é¹=I‡fiV•Ôî“nRm+µFPOhÍ0B£ €+¬5c v•:P'ÒyÎ ‰V~‚Ó†ÖuókDoh$å\*ö%Ю=£«…aȼ½÷Û.-½VŒŠ¼'lyî±1¬3ó#ÞE¿ÔS¤gV£m›=§\û"—WU¤ÚǼÿ ÂnÁGŒÃ ‚õN D³õNÚíŒÕ;HôyÄÈ©P¹Ä{:?R‘Ô¨âF÷ø£bÅó® JS|‚R÷ivýáâ€Æé¡è³´IئÑT!§˜•Øª‚¬â@q€wnïCWÄ@JU€ê¯m6]Ï:£âx'+ÒðXvÓ¦Úm=–´7œ $ì“B£~p%ÕŸUþ« N@¼üï~w˜ñø5®—'Ôe»¤5ã//€ž~‰Tþ›Å7•#¤× Íö pÄ$ùeåì*«ÓŠEØWEÈsßg ¦ûvžSsLpºÊW–âµEWöˬH; ™!CYõZ ÃÄf æ#1W. \uWâ\,\Çf j’<qTbên›Î[vxx£ë 'ö¨1›˜ÀM¼Pÿ H)ƒêêŒA7s,|F“ 꺸k³9Ìö*ç®;Ö!Ö$Eiž•¹ÒÚ†ýóéÝû¾ÕS®ó$’NÝäŸz¤5r¦ãÄÃD÷Üø!°ø‡Ô&@m™Ì^Ãä­d q5Lnÿ N;.6½·N|#ä"1Nƒx“ã<3('&ñßt  ~ªu”1Tb㫨9ê–›–bìd$ߣ=#ÕãÒmU¯eí$EFù5ýYô櫨æ왍Ǘ±ssM]·á¿0ÕåJRÓªîiƒ+O58ÖñªŠÒx" \µâá¨i’¤i —Ö ” M+M¤ë9‚‰A¦°Qõ¾ßøK~¼Ã‘g…Ö´~÷Ï[3GUœÒ½#…kàÔ®Ò”‰³·dWV‰IP‰Ú8u¹”E ÖqLj¾êÕCBš{A^Âß;–¨`¯¬ìö ˼ ×tìø.tƐm*n¨y4o&Àx¥n¦×î‡aupáÛj8¿m›è¶ã!o½;ß0y^ý×^EÑ¿ÒjzŒ­)vÚÑnÄL …^ªô× ‡—‚3k Îý­hï]içå–îÏ*÷ñþ»Ô CÒjøjÍznˆ´ ¹#b'Fô‹ ‰v¥'’à'T´ƒHýÍ%M‰ ƒ&ÆÇŒï1 ‘ –Þ ‰i¬s žR-Ÿ kŠ¬á¬7:þ 0ŒÅÒÕ/aÙ¬ÃÝ#Úøœ ©aiVc‰. ¹¦ãµ” ›Yg¦›ÆÎýº°f³7ƒhá·¸­}&D9¡ÂsÉÙÞèŠõØàC™¨ñbFC|´Ü(ŸƒÚÒ-%»'a Ì¿)ËÇn¿úÿ ÞŽX…4ÊÅH^ôΑí@ù¹Eh¶“L8Çjù ¼ÎåVªóR©Ï5uà V4lZß®=€xÖŸ–ÑÈ ÷”¨°¾__yM1tÉ?uÆþIkÄgæ@þ[¢†°XÃJ£j·:nkÅ¢u ‘}âGzö­/IµèŠ¬¼48q¦F°ŽR¼=ûì{´¯RýicS ÕÛ íNtÍÙï£,w4rêì®»~x(©Uñ§#Ñ&œÕ¤>ÎåÍÓ9’Ö{9eV­[Öjâ²ãu]˜å2›qÑšÕJç0€sÄ|Êëè0튔bÁ>“{×_F`Ø©ºê:µä,v¤ðfc1±"«ÔÍän1#=· Âøv~H½ÐßA¾¿Ü€Óš]Õ; I¾÷ç‚Qi†î¹9ywÔKG˜áñ zQY—§ÃÕZ07§X‚ Áh;ÁM)iÌCH-¯T‘ë|A0{Ò½LÚ–TâÖkÜ’dÀ“rmm»”جPF³ÖcbE§T€ÒxKºû’Ó®7±²(\4ŽÃ¸Uu@j™yĵ;³µ!Á¢b.W¤=mõ´êµK k ¸K^ÜÛ#p*Ü14qkZç5ïë †°5Ï%ÍÛ<Õ¤×Ô¥ê†C Õ´¼ú$ƒÖ“”]Ù¬qÞÚ[4©ý!ûÏ—Áb쳐XµA¬â~`›Çr¸8ìùÝ䫦<>ä÷«?xs´ÇÑ /á;¹øüÊÈÙà{"@Žïzâ¬[âß‚ U_<ÇŸ½4èN˜ú61®qŠu ¦þF£»äJ_ˆÙÎ~ ÞAã–Ý„Ï—rŠD;xTž‘ô`É«…suãO`?³à™ô Lý#Íc5öoæØ‚y´´÷«ZR§<&JÇ+éâô´€i!Àˆ0æAoàðLèÖ-2ŸõW.’t^–(KÁmHµV@xÜÇy®Ñø­â^:Ú3w· 7½¹°ñ¸â¹®:',«Mœ—n­Á+Ãbš LÈ‘ÄnRÓÅœ%¦²‰¨ùQ:¤f‚ "PÕtô¸…cæl…&˜Ú˜Ôkv‹ž+vŠ,=¢v­6—Xy*¥t£«<™:“aîϲ=¦6rO]XI¿Œ÷¤zÚ­›¶ 6÷”w\d ü~v®ˆÌk«^m<ÿ ¢‰Õ\)ùºŽ;… lîÙÅEŠ®cѾ@vnMÏ,¼“ñ•ŽBxðÃzãÇç%3ˆ"}Ù•Åî> BÉú;Ò]V+P˜F_´ßé> Øše|ï‡ÄOmFæÇ ãqÞ$/xÐx­z`ï9"œÜij‚!7.\Td…9M‡•iŽ‹¾‘50ÞŽn¥ß4ÉôO ¹*í^QêËÜÇÌ8=Ž§s‰'ÂëÙ«á%Pú[O †ÅP¯VsŽ°.‰,kc¶ ¬A9n˜XÎ-ÞšN["¹QÕ‰ƒMýÁߺXJæÍaLj¾×Ãmã¾ãÚ uñÒþåQô¦¥ /ÄUx:‚ÍÜ’ Đ©ØÝ3V¨‰ÕnÐ6ó*óúK­«…c ¯U òhsý­jóÔj#,ímŒRµ«lbïUTŒÑ8†Ä0œÏr`ð¡¬É Ї ë"À² ™ 6¥ f¶ ¢ÚoܱԷ-<Àî)†a¶ž'Ú»¨TXqØæ¶÷YÄHy˜9ÈIW­YÀuMFë ºÏ’AqÌ4·/Ú †ô'i$øä­=Ä Ý|öK×40è|È6p‘0§)o¥ctî§H+CA-“ xØ|ÐXŠç l8íºð3Ø:³¤¬KX¯UÿÙ # This file is dual licensed under the terms of the Apache License, Version # 2.0, and the BSD License. See the LICENSE file in the root of this repository # for complete details. from __future__ import absolute_import, division, print_function import abc import datetime import os from enum import Enum import six from cryptography import utils from cryptography.hazmat.primitives.asymmetric import ( dsa, ec, ed25519, ed448, rsa ) from cryptography.x509.extensions import Extension, ExtensionType from cryptography.x509.name import Name _EARLIEST_UTC_TIME = datetime.datetime(1950, 1, 1) def _reject_duplicate_extension(extension, extensions): # This is quadratic in the number of extensions for e in extensions: if e.oid == extension.oid: raise ValueError('This extension has already been set.') def _convert_to_naive_utc_time(time): """Normalizes a datetime to a naive datetime in UTC. time -- datetime to normalize. Assumed to be in UTC if not timezone aware. """ if time.tzinfo is not None: offset = time.utcoffset() offset = offset if offset else datetime.timedelta() return time.replace(tzinfo=None) - offset else: return time class Version(Enum): v1 = 0 v3 = 2 def load_pem_x509_certificate(data, backend): return backend.load_pem_x509_certificate(data) def load_der_x509_certificate(data, backend): return backend.load_der_x509_certificate(data) def load_pem_x509_csr(data, backend): return backend.load_pem_x509_csr(data) def load_der_x509_csr(data, backend): return backend.load_der_x509_csr(data) def load_pem_x509_crl(data, backend): return backend.load_pem_x509_crl(data) def load_der_x509_crl(data, backend): return backend.load_der_x509_crl(data) class InvalidVersion(Exception): def __init__(self, msg, parsed_version): super(InvalidVersion, self).__init__(msg) self.parsed_version = parsed_version @six.add_metaclass(abc.ABCMeta) class Certificate(object): @abc.abstractmethod def fingerprint(self, algorithm): """ Returns bytes using digest passed. """ @abc.abstractproperty def serial_number(self): """ Returns certificate serial number """ @abc.abstractproperty def version(self): """ Returns the certificate version """ @abc.abstractmethod def public_key(self): """ Returns the public key """ @abc.abstractproperty def not_valid_before(self): """ Not before time (represented as UTC datetime) """ @abc.abstractproperty def not_valid_after(self): """ Not after time (represented as UTC datetime) """ @abc.abstractproperty def issuer(self): """ Returns the issuer name object. """ @abc.abstractproperty def subject(self): """ Returns the subject name object. """ @abc.abstractproperty def signature_hash_algorithm(self): """ Returns a HashAlgorithm corresponding to the type of the digest signed in the certificate. """ @abc.abstractproperty def signature_algorithm_oid(self): """ Returns the ObjectIdentifier of the signature algorithm. """ @abc.abstractproperty def extensions(self): """ Returns an Extensions object. """ @abc.abstractproperty def signature(self): """ Returns the signature bytes. """ @abc.abstractproperty def tbs_certificate_bytes(self): """ Returns the tbsCertificate payload bytes as defined in RFC 5280. """ @abc.abstractmethod def __eq__(self, other): """ Checks equality. """ @abc.abstractmethod def __ne__(self, other): """ Checks not equal. """ @abc.abstractmethod def __hash__(self): """ Computes a hash. """ @abc.abstractmethod def public_bytes(self, encoding): """ Serializes the certificate to PEM or DER format. """ @six.add_metaclass(abc.ABCMeta) class CertificateRevocationList(object): @abc.abstractmethod def public_bytes(self, encoding): """ Serializes the CRL to PEM or DER format. """ @abc.abstractmethod def fingerprint(self, algorithm): """ Returns bytes using digest passed. """ @abc.abstractmethod def get_revoked_certificate_by_serial_number(self, serial_number): """ Returns an instance of RevokedCertificate or None if the serial_number is not in the CRL. """ @abc.abstractproperty def signature_hash_algorithm(self): """ Returns a HashAlgorithm corresponding to the type of the digest signed in the certificate. """ @abc.abstractproperty def signature_algorithm_oid(self): """ Returns the ObjectIdentifier of the signature algorithm. """ @abc.abstractproperty def issuer(self): """ Returns the X509Name with the issuer of this CRL. """ @abc.abstractproperty def next_update(self): """ Returns the date of next update for this CRL. """ @abc.abstractproperty def last_update(self): """ Returns the date of last update for this CRL. """ @abc.abstractproperty def extensions(self): """ Returns an Extensions object containing a list of CRL extensions. """ @abc.abstractproperty def signature(self): """ Returns the signature bytes. """ @abc.abstractproperty def tbs_certlist_bytes(self): """ Returns the tbsCertList payload bytes as defined in RFC 5280. """ @abc.abstractmethod def __eq__(self, other): """ Checks equality. """ @abc.abstractmethod def __ne__(self, other): """ Checks not equal. """ @abc.abstractmethod def __len__(self): """ Number of revoked certificates in the CRL. """ @abc.abstractmethod def __getitem__(self, idx): """ Returns a revoked certificate (or slice of revoked certificates). """ @abc.abstractmethod def __iter__(self): """ Iterator over the revoked certificates """ @abc.abstractmethod def is_signature_valid(self, public_key): """ Verifies signature of revocation list against given public key. """ @six.add_metaclass(abc.ABCMeta) class CertificateSigningRequest(object): @abc.abstractmethod def __eq__(self, other): """ Checks equality. """ @abc.abstractmethod def __ne__(self, other): """ Checks not equal. """ @abc.abstractmethod def __hash__(self): """ Computes a hash. """ @abc.abstractmethod def public_key(self): """ Returns the public key """ @abc.abstractproperty def subject(self): """ Returns the subject name object. """ @abc.abstractproperty def signature_hash_algorithm(self): """ Returns a HashAlgorithm corresponding to the type of the digest signed in the certificate. """ @abc.abstractproperty def signature_algorithm_oid(self): """ Returns the ObjectIdentifier of the signature algorithm. """ @abc.abstractproperty def extensions(self): """ Returns the extensions in the signing request. """ @abc.abstractmethod def public_bytes(self, encoding): """ Encodes the request to PEM or DER format. """ @abc.abstractproperty def signature(self): """ Returns the signature bytes. """ @abc.abstractproperty def tbs_certrequest_bytes(self): """ Returns the PKCS#10 CertificationRequestInfo bytes as defined in RFC 2986. """ @abc.abstractproperty def is_signature_valid(self): """ Verifies signature of signing request. """ @six.add_metaclass(abc.ABCMeta) class RevokedCertificate(object): @abc.abstractproperty def serial_number(self): """ Returns the serial number of the revoked certificate. """ @abc.abstractproperty def revocation_date(self): """ Returns the date of when this certificate was revoked. """ @abc.abstractproperty def extensions(self): """ Returns an Extensions object containing a list of Revoked extensions. """ class CertificateSigningRequestBuilder(object): def __init__(self, subject_name=None, extensions=[]): """ Creates an empty X.509 certificate request (v1). """ self._subject_name = subject_name self._extensions = extensions def subject_name(self, name): """ Sets the certificate requestor's distinguished name. """ if not isinstance(name, Name): raise TypeError('Expecting x509.Name object.') if self._subject_name is not None: raise ValueError('The subject name may only be set once.') return CertificateSigningRequestBuilder(name, self._extensions) def add_extension(self, extension, critical): """ Adds an X.509 extension to the certificate request. """ if not isinstance(extension, ExtensionType): raise TypeError("extension must be an ExtensionType") extension = Extension(extension.oid, critical, extension) _reject_duplicate_extension(extension, self._extensions) return CertificateSigningRequestBuilder( self._subject_name, self._extensions + [extension] ) def sign(self, private_key, algorithm, backend): """ Signs the request using the requestor's private key. """ if self._subject_name is None: raise ValueError("A CertificateSigningRequest must have a subject") return backend.create_x509_csr(self, private_key, algorithm) class CertificateBuilder(object): def __init__(self, issuer_name=None, subject_name=None, public_key=None, serial_number=None, not_valid_before=None, not_valid_after=None, extensions=[]): self._version = Version.v3 self._issuer_name = issuer_name self._subject_name = subject_name self._public_key = public_key self._serial_number = serial_number self._not_valid_before = not_valid_before self._not_valid_after = not_valid_after self._extensions = extensions def issuer_name(self, name): """ Sets the CA's distinguished name. """ if not isinstance(name, Name): raise TypeError('Expecting x509.Name object.') if self._issuer_name is not None: raise ValueError('The issuer name may only be set once.') return CertificateBuilder( name, self._subject_name, self._public_key, self._serial_number, self._not_valid_before, self._not_valid_after, self._extensions ) def subject_name(self, name): """ Sets the requestor's distinguished name. """ if not isinstance(name, Name): raise TypeError('Expecting x509.Name object.') if self._subject_name is not None: raise ValueError('The subject name may only be set once.') return CertificateBuilder( self._issuer_name, name, self._public_key, self._serial_number, self._not_valid_before, self._not_valid_after, self._extensions ) def public_key(self, key): """ Sets the requestor's public key (as found in the signing request). """ if not isinstance(key, (dsa.DSAPublicKey, rsa.RSAPublicKey, ec.EllipticCurvePublicKey, ed25519.Ed25519PublicKey, ed448.Ed448PublicKey)): raise TypeError('Expecting one of DSAPublicKey, RSAPublicKey,' ' EllipticCurvePublicKey, Ed25519PublicKey or' ' Ed448PublicKey.') if self._public_key is not None: raise ValueError('The public key may only be set once.') return CertificateBuilder( self._issuer_name, self._subject_name, key, self._serial_number, self._not_valid_before, self._not_valid_after, self._extensions ) def serial_number(self, number): """ Sets the certificate serial number. """ if not isinstance(number, six.integer_types): raise TypeError('Serial number must be of integral type.') if self._serial_number is not None: raise ValueError('The serial number may only be set once.') if number <= 0: raise ValueError('The serial number should be positive.') # ASN.1 integers are always signed, so most significant bit must be # zero. if number.bit_length() >= 160: # As defined in RFC 5280 raise ValueError('The serial number should not be more than 159 ' 'bits.') return CertificateBuilder( self._issuer_name, self._subject_name, self._public_key, number, self._not_valid_before, self._not_valid_after, self._extensions ) def not_valid_before(self, time): """ Sets the certificate activation time. """ if not isinstance(time, datetime.datetime): raise TypeError('Expecting datetime object.') if self._not_valid_before is not None: raise ValueError('The not valid before may only be set once.') time = _convert_to_naive_utc_time(time) if time < _EARLIEST_UTC_TIME: raise ValueError('The not valid before date must be on or after' ' 1950 January 1).') if self._not_valid_after is not None and time > self._not_valid_after: raise ValueError( 'The not valid before date must be before the not valid after ' 'date.' ) return CertificateBuilder( self._issuer_name, self._subject_name, self._public_key, self._serial_number, time, self._not_valid_after, self._extensions ) def not_valid_after(self, time): """ Sets the certificate expiration time. """ if not isinstance(time, datetime.datetime): raise TypeError('Expecting datetime object.') if self._not_valid_after is not None: raise ValueError('The not valid after may only be set once.') time = _convert_to_naive_utc_time(time) if time < _EARLIEST_UTC_TIME: raise ValueError('The not valid after date must be on or after' ' 1950 January 1.') if (self._not_valid_before is not None and time < self._not_valid_before): raise ValueError( 'The not valid after date must be after the not valid before ' 'date.' ) return CertificateBuilder( self._issuer_name, self._subject_name, self._public_key, self._serial_number, self._not_valid_before, time, self._extensions ) def add_extension(self, extension, critical): """ Adds an X.509 extension to the certificate. """ if not isinstance(extension, ExtensionType): raise TypeError("extension must be an ExtensionType") extension = Extension(extension.oid, critical, extension) _reject_duplicate_extension(extension, self._extensions) return CertificateBuilder( self._issuer_name, self._subject_name, self._public_key, self._serial_number, self._not_valid_before, self._not_valid_after, self._extensions + [extension] ) def sign(self, private_key, algorithm, backend): """ Signs the certificate using the CA's private key. """ if self._subject_name is None: raise ValueError("A certificate must have a subject name") if self._issuer_name is None: raise ValueError("A certificate must have an issuer name") if self._serial_number is None: raise ValueError("A certificate must have a serial number") if self._not_valid_before is None: raise ValueError("A certificate must have a not valid before time") if self._not_valid_after is None: raise ValueError("A certificate must have a not valid after time") if self._public_key is None: raise ValueError("A certificate must have a public key") return backend.create_x509_certificate(self, private_key, algorithm) class CertificateRevocationListBuilder(object): def __init__(self, issuer_name=None, last_update=None, next_update=None, extensions=[], revoked_certificates=[]): self._issuer_name = issuer_name self._last_update = last_update self._next_update = next_update self._extensions = extensions self._revoked_certificates = revoked_certificates def issuer_name(self, issuer_name): if not isinstance(issuer_name, Name): raise TypeError('Expecting x509.Name object.') if self._issuer_name is not None: raise ValueError('The issuer name may only be set once.') return CertificateRevocationListBuilder( issuer_name, self._last_update, self._next_update, self._extensions, self._revoked_certificates ) def last_update(self, last_update): if not isinstance(last_update, datetime.datetime): raise TypeError('Expecting datetime object.') if self._last_update is not None: raise ValueError('Last update may only be set once.') last_update = _convert_to_naive_utc_time(last_update) if last_update < _EARLIEST_UTC_TIME: raise ValueError('The last update date must be on or after' ' 1950 January 1.') if self._next_update is not None and last_update > self._next_update: raise ValueError( 'The last update date must be before the next update date.' ) return CertificateRevocationListBuilder( self._issuer_name, last_update, self._next_update, self._extensions, self._revoked_certificates ) def next_update(self, next_update): if not isinstance(next_update, datetime.datetime): raise TypeError('Expecting datetime object.') if self._next_update is not None: raise ValueError('Last update may only be set once.') next_update = _convert_to_naive_utc_time(next_update) if next_update < _EARLIEST_UTC_TIME: raise ValueError('The last update date must be on or after' ' 1950 January 1.') if self._last_update is not None and next_update < self._last_update: raise ValueError( 'The next update date must be after the last update date.' ) return CertificateRevocationListBuilder( self._issuer_name, self._last_update, next_update, self._extensions, self._revoked_certificates ) def add_extension(self, extension, critical): """ Adds an X.509 extension to the certificate revocation list. """ if not isinstance(extension, ExtensionType): raise TypeError("extension must be an ExtensionType") extension = Extension(extension.oid, critical, extension) _reject_duplicate_extension(extension, self._extensions) return CertificateRevocationListBuilder( self._issuer_name, self._last_update, self._next_update, self._extensions + [extension], self._revoked_certificates ) def add_revoked_certificate(self, revoked_certificate): """ Adds a revoked certificate to the CRL. """ if not isinstance(revoked_certificate, RevokedCertificate): raise TypeError("Must be an instance of RevokedCertificate") return CertificateRevocationListBuilder( self._issuer_name, self._last_update, self._next_update, self._extensions, self._revoked_certificates + [revoked_certificate] ) def sign(self, private_key, algorithm, backend): if self._issuer_name is None: raise ValueError("A CRL must have an issuer name") if self._last_update is None: raise ValueError("A CRL must have a last update time") if self._next_update is None: raise ValueError("A CRL must have a next update time") return backend.create_x509_crl(self, private_key, algorithm) class RevokedCertificateBuilder(object): def __init__(self, serial_number=None, revocation_date=None, extensions=[]): self._serial_number = serial_number self._revocation_date = revocation_date self._extensions = extensions def serial_number(self, number): if not isinstance(number, six.integer_types): raise TypeError('Serial number must be of integral type.') if self._serial_number is not None: raise ValueError('The serial number may only be set once.') if number <= 0: raise ValueError('The serial number should be positive') # ASN.1 integers are always signed, so most significant bit must be # zero. if number.bit_length() >= 160: # As defined in RFC 5280 raise ValueError('The serial number should not be more than 159 ' 'bits.') return RevokedCertificateBuilder( number, self._revocation_date, self._extensions ) def revocation_date(self, time): if not isinstance(time, datetime.datetime): raise TypeError('Expecting datetime object.') if self._revocation_date is not None: raise ValueError('The revocation date may only be set once.') time = _convert_to_naive_utc_time(time) if time < _EARLIEST_UTC_TIME: raise ValueError('The revocation date must be on or after' ' 1950 January 1.') return RevokedCertificateBuilder( self._serial_number, time, self._extensions ) def add_extension(self, extension, critical): if not isinstance(extension, ExtensionType): raise TypeError("extension must be an ExtensionType") extension = Extension(extension.oid, critical, extension) _reject_duplicate_extension(extension, self._extensions) return RevokedCertificateBuilder( self._serial_number, self._revocation_date, self._extensions + [extension] ) def build(self, backend): if self._serial_number is None: raise ValueError("A revoked certificate must have a serial number") if self._revocation_date is None: raise ValueError( "A revoked certificate must have a revocation date" ) return backend.create_x509_revoked_certificate(self) def random_serial_number(): return utils.int_from_bytes(os.urandom(20), "big") >> 1