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H5+H8!1L "8!L#8!H5+H8!W1L 7!L7!H5+H8!*1L 7!L7!H5Ht8!1L 7!L7!H5h+HG8!1L n7!Lo7!H5[+H8!1L A7!LB7!H5V+H7!v1L 7!L7!H5Q+H7!I1L 6!L6!H5H7!1L 6!L6!H5+Hf7!1L 6!L6!H5+H97!1L `6!La6!H5 +H 7!1L 36!L46!H5+H6!h1L 6!L6!#H5+H6!;1L 5!L5!'H5*H6!1L 5!L5!+H5*HX6!1L 5!L5!-H5*H+6!1L R5!LS5!/H5*H5!1L %5!L&5!1H5*H5!Z1L 4!L4!H5*H5!-1L 4!L4!H5*Hw5!1L 4!L4!H5*HJ5!1L q4!Lr4!H5 H5!1L D4!LE4!H5 H4!y1L 4!L4!H5} H4!L1L 3!L3!H5l H4!L 3!L3!HHv4!1ɺAZ[]A\A]H5D fHHO|i:SSLChannelInformationO|i:SSLCipherSuiteInformationunable to create objectTrueFalse|i:format_lines%s (0x%x)Cipher SuiteAuth AlgorithmKey Exchange TypeSymmetric CipherEffective Symmetric Key BitsSymmetric Key SpaceMAC AlgorithmMAC BitsFIPSExportableNonstandard%d.%d (%s)Auth Key BitsKey Exchange Key BitsCreation TimeLast Access TimeExpiration TimeCompression Method:Session IDk:ssl_cipher_suite_namelowerminmaxSSL Protocol Version%d-bit %sMACAuthKey ExchangeCompressionOO:set_ssl_version_rangei:import_tcp_socketiI:rehandshake_timeouti:rehandshakeI:force_handshake_timeouti:reset_handshakeisiisscallback must be callable|I:acceptNNk|i:ssl_library_version_nameS:ssl_cipher_suite_from_nameI:get_cipher_suite_infoI:set_max_server_cache_locksi:get_cipher_policyii:set_cipher_policyi:get_default_cipher_prefii:set_default_cipher_prefi:get_ssl_default_optionii:set_ssl_default_option|i:get_ssl_version_rangeO!:set_certificate_dbs:set_hostnamei:get_cipher_prefii:set_cipher_prefs:set_sock_peer_idO!O!i:config_secure_serveri:get_ssl_optionii:set_ssl_optionnss.error_C_APIssl_implemented_ciphersSSL_LIBRARY_VERSION_2SSL_LIBRARY_VERSION_3_0SSL_LIBRARY_VERSION_TLS_1_0SSL_LIBRARY_VERSION_TLS_1_1SSL_LIBRARY_VERSION_TLS_1_2SSL_LIBRARY_VERSION_TLS_1_3ssl2ssl3tls1.0tls1.1tls1.2tls1.3module '%s' has no __dict__ssl_variant_streamSSL_VARIANT_STREAMssl_variant_datagramSSL_VARIANT_DATAGRAMSSL_SECURITYSSL_SOCKSSSL_REQUEST_CERTIFICATESSL_HANDSHAKE_AS_CLIENTSSL_HANDSHAKE_AS_SERVERSSL_ENABLE_SSL2SSL_ENABLE_SSL3SSL_NO_CACHESSL_REQUIRE_CERTIFICATESSL_ENABLE_FDXSSL_V2_COMPATIBLE_HELLOSSL_ENABLE_TLSSSL_ROLLBACK_DETECTIONSSL_NO_STEP_DOWNSSL_BYPASS_PKCS11SSL_NO_LOCKSSSL_NOT_ALLOWEDSSL_ALLOWEDSSL_RESTRICTEDSSL_REQUIRE_NEVERSSL_REQUIRE_ALWAYSSSL_REQUIRE_FIRST_HANDSHAKESSL_REQUIRE_NO_ERRORSSL_SECURITY_STATUS_NOOPTSSL_SECURITY_STATUS_OFFSSL_SECURITY_STATUS_ON_HIGHSSL_SECURITY_STATUS_ON_LOWSSL_CK_RC4_128_WITH_MD5SSL_CK_RC2_128_CBC_WITH_MD5SSL_CK_IDEA_128_CBC_WITH_MD5SSL_CK_DES_64_CBC_WITH_MD5SSL_EN_RC4_128_WITH_MD5SSL_EN_RC2_128_CBC_WITH_MD5SSL_EN_IDEA_128_CBC_WITH_MD5SSL_EN_DES_64_CBC_WITH_MD5SSL_NULL_WITH_NULL_NULLSSL_RSA_WITH_NULL_MD5SSL_RSA_WITH_NULL_SHASSL_RSA_WITH_RC4_128_MD5SSL_RSA_WITH_RC4_128_SHASSL_RSA_WITH_IDEA_CBC_SHASSL_RSA_WITH_DES_CBC_SHASSL_RSA_WITH_3DES_EDE_CBC_SHASSL_DH_DSS_WITH_DES_CBC_SHASSL_DH_RSA_WITH_DES_CBC_SHASSL_DHE_DSS_WITH_DES_CBC_SHASSL_DHE_RSA_WITH_DES_CBC_SHASSL_DH_ANON_WITH_RC4_128_MD5SSL_DH_ANON_WITH_DES_CBC_SHATLS_NULL_WITH_NULL_NULLTLS_RSA_WITH_NULL_MD5TLS_RSA_WITH_NULL_SHATLS_RSA_WITH_RC4_128_MD5TLS_RSA_WITH_RC4_128_SHATLS_RSA_WITH_IDEA_CBC_SHATLS_RSA_WITH_DES_CBC_SHATLS_RSA_WITH_3DES_EDE_CBC_SHATLS_DH_DSS_WITH_DES_CBC_SHATLS_DH_RSA_WITH_DES_CBC_SHATLS_DHE_DSS_WITH_DES_CBC_SHATLS_DHE_RSA_WITH_DES_CBC_SHATLS_DH_anon_WITH_RC4_128_MD5TLS_DH_anon_WITH_DES_CBC_SHATLS_RSA_WITH_AES_128_CBC_SHATLS_RSA_WITH_AES_256_CBC_SHATLS_RSA_WITH_NULL_SHA256TLS_DHE_DSS_WITH_RC4_128_SHATLS_RSA_WITH_SEED_CBC_SHATLS_FALLBACK_SCSVTLS_ECDH_ECDSA_WITH_NULL_SHATLS_ECDHE_ECDSA_WITH_NULL_SHATLS_ECDH_RSA_WITH_NULL_SHATLS_ECDH_RSA_WITH_RC4_128_SHATLS_ECDHE_RSA_WITH_NULL_SHATLS_ECDH_anon_WITH_NULL_SHASSL_RSA_FIPS_WITH_DES_CBC_SHASRTP_AES128_CM_HMAC_SHA1_80SRTP_AES128_CM_HMAC_SHA1_32SRTP_NULL_HMAC_SHA1_80SRTP_NULL_HMAC_SHA1_32nss.ionss.nssnss.sslrepr_kindlevelmax_cache_entriesssl2_timeoutssl3_timeoutdirectorymax_cert_cache_entriesmax_server_name_cache_entriesenable_mp_cachessl_library_versionprotocol_variantmin_versionmax_versionconfig_mp_server_sid_cacheget_max_server_cache_locksclear_session_cacheset_domestic_policyset_export_policyset_france_policyssl_library_version_from_nameget_default_ssl_version_rangeset_default_ssl_version_rangenss.ssl.SSLChannelInfoprotocol_version_strprotocol_version_enummajor_protocol_versionminor_protocol_versioncipher_suiteReturns the cipher suite enumauth_key_bitsReturns the auth key bitskea_key_bitsReturns the kea key bitscreation_timecreation_time_utclast_access_timelast_access_time_utcexpiration_timeexpiration_time_utccompression_methodcompression_method_namenss.ssl.SSLCipherSuiteInfoReturns the cipher suite nameauth_algorithmauth_algorithm_namekea_typeReturns the kea type enumkea_type_nameReturns the kea type namesymmetric_ciphersymmetric_cipher_namesymmetric_key_bitssymmetric_key_spaceeffective_key_bitsmac_algorithmmac_algorithm_namemac_bitsReturns the mac bitsis_fipsis_exportableis_nonstandardset_auth_certificate_callbackset_client_auth_data_callbackset_handshake_callbackset_pkcs11_pin_argget_pkcs11_pin_argget_peer_certificateget_certificateinvalidate_sessiondata_pendingget_security_statusget_session_idget_hostnameforce_handshakeget_ssl_channel_infoget_negotiated_hostconnection_info_format_linesconnection_info_formatconnection_info_strnss.ssl.SSLSocketSSL Library Version name not found: %luVerson %d.%d has unkown minor versionVerson %d.%d has unkown major versionUnsupported representation kind (%d)II|i:get_ssl_version_from_major_minorcipher suite name not found: %lussl library version name must be a string, not %.200sssl_library_version name not found: %sS:ssl_library_version_from_namessl library %s version value be an integer or string, not %.200sOO|k:set_default_ssl_version_range|iiiIIO:config_server_session_id_cache_with_optdirectory must be string or None, not %.200s|iIIO:config_mp_server_sid_cache|iIIO:config_server_session_id_cacheset_handshake_callback: missing callback argumentSSLSocket.handshake_callback: out of memory exception in SSLSocket.handshake_callback set_client_auth_data_callback: missing callback argumentSSLSocket.client_auth_data_callback: out of memory exception in SSLSocket.client_auth_data_callback SSLSocket.client_auth_data_callback: 1st return value must be %s or None SSLSocket.client_auth_data_callback: expected 2nd return value SSLSocket.client_auth_data_callback: 2nd return value must be %s or None SSLSocket.client_auth_data_callback: unexpected return value, must be False or the tuple (None) or the tuple (cert, priv_key) set_auth_certificate_callback: missing callback argumentSSLSocket.auth_certificate_func: out of memory SSLSocket.auth_certificate_func: cannot create socket object exception in SSLSocket.auth_certificate_func cipher suite name must be a string, not %.200scipher suite name not found: %s|ki:get_default_ssl_version_range|ki:get_supported_ssl_version_rangemodule '%s' already contains %sSSL_CK_RC4_128_EXPORT40_WITH_MD5SSL_CK_RC2_128_CBC_EXPORT40_WITH_MD5SSL_CK_DES_192_EDE3_CBC_WITH_MD5SSL_EN_RC4_128_EXPORT40_WITH_MD5SSL_EN_RC2_128_CBC_EXPORT40_WITH_MD5SSL_EN_DES_192_EDE3_CBC_WITH_MD5SSL_RSA_EXPORT_WITH_RC4_40_MD5SSL_RSA_EXPORT_WITH_RC2_CBC_40_MD5SSL_RSA_EXPORT_WITH_DES40_CBC_SHASSL_DH_DSS_EXPORT_WITH_DES40_CBC_SHASSL_DH_DSS_WITH_3DES_EDE_CBC_SHASSL_DH_RSA_EXPORT_WITH_DES40_CBC_SHASSL_DH_RSA_WITH_3DES_EDE_CBC_SHASSL_DHE_DSS_EXPORT_WITH_DES40_CBC_SHASSL_DHE_DSS_WITH_3DES_EDE_CBC_SHASSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHASSL_DHE_RSA_WITH_3DES_EDE_CBC_SHASSL_DH_ANON_EXPORT_WITH_DES40_CBC_SHASSL_DH_ANON_WITH_3DES_EDE_CBC_SHASSL_DH_ANON_EXPORT_WITH_RC4_40_MD5TLS_DH_ANON_WITH_AES_128_CBC_SHATLS_DH_ANON_WITH_AES_256_CBC_SHATLS_DH_ANON_WITH_CAMELLIA_128_CBC_SHATLS_DH_ANON_WITH_CAMELLIA_256_CBC_SHATLS_RSA_EXPORT_WITH_RC4_40_MD5TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5TLS_RSA_EXPORT_WITH_DES40_CBC_SHATLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHATLS_DH_DSS_WITH_3DES_EDE_CBC_SHATLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHATLS_DH_RSA_WITH_3DES_EDE_CBC_SHATLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHATLS_DHE_DSS_WITH_3DES_EDE_CBC_SHATLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHATLS_DHE_RSA_WITH_3DES_EDE_CBC_SHATLS_DH_anon_EXPORT_WITH_RC4_40_MD5TLS_DH_anon_EXPORT_WITH_DES40_CBC_SHATLS_DH_anon_WITH_3DES_EDE_CBC_SHASSL_FORTEZZA_DMS_WITH_NULL_SHASSL_FORTEZZA_DMS_WITH_FORTEZZA_CBC_SHASSL_FORTEZZA_DMS_WITH_RC4_128_SHATLS_DH_DSS_WITH_AES_128_CBC_SHATLS_DH_RSA_WITH_AES_128_CBC_SHATLS_DHE_DSS_WITH_AES_128_CBC_SHATLS_DHE_RSA_WITH_AES_128_CBC_SHATLS_DH_anon_WITH_AES_128_CBC_SHATLS_DH_DSS_WITH_AES_256_CBC_SHATLS_DH_RSA_WITH_AES_256_CBC_SHATLS_DHE_DSS_WITH_AES_256_CBC_SHATLS_DHE_RSA_WITH_AES_256_CBC_SHATLS_DH_anon_WITH_AES_256_CBC_SHATLS_RSA_WITH_AES_128_CBC_SHA256TLS_RSA_WITH_AES_256_CBC_SHA256TLS_RSA_WITH_CAMELLIA_128_CBC_SHATLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHATLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHATLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHATLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHATLS_DH_anon_WITH_CAMELLIA_128_CBC_SHATLS_RSA_EXPORT1024_WITH_DES_CBC_SHATLS_RSA_EXPORT1024_WITH_RC4_56_SHATLS_DHE_DSS_EXPORT1024_WITH_DES_CBC_SHATLS_DHE_DSS_EXPORT1024_WITH_RC4_56_SHATLS_DHE_RSA_WITH_AES_128_CBC_SHA256TLS_DHE_RSA_WITH_AES_256_CBC_SHA256TLS_RSA_WITH_CAMELLIA_256_CBC_SHATLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHATLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHATLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHATLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHATLS_DH_anon_WITH_CAMELLIA_256_CBC_SHATLS_RSA_WITH_AES_128_GCM_SHA256TLS_DHE_RSA_WITH_AES_128_GCM_SHA256TLS_DHE_DSS_WITH_AES_128_GCM_SHA256TLS_EMPTY_RENEGOTIATION_INFO_SCSVTLS_ECDH_ECDSA_WITH_RC4_128_SHATLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHATLS_ECDH_ECDSA_WITH_AES_128_CBC_SHATLS_ECDH_ECDSA_WITH_AES_256_CBC_SHATLS_ECDHE_ECDSA_WITH_RC4_128_SHATLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHATLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHATLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHATLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHATLS_ECDH_RSA_WITH_AES_128_CBC_SHATLS_ECDH_RSA_WITH_AES_256_CBC_SHATLS_ECDHE_RSA_WITH_RC4_128_SHATLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHATLS_ECDHE_RSA_WITH_AES_128_CBC_SHATLS_ECDHE_RSA_WITH_AES_256_CBC_SHATLS_ECDH_anon_WITH_RC4_128_SHATLS_ECDH_anon_WITH_3DES_EDE_CBC_SHATLS_ECDH_anon_WITH_AES_128_CBC_SHATLS_ECDH_anon_WITH_AES_256_CBC_SHATLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256SSL_RSA_OLDFIPS_WITH_3DES_EDE_CBC_SHASSL_RSA_OLDFIPS_WITH_DES_CBC_SHASSL_RSA_FIPS_WITH_3DES_EDE_CBC_SHAconfig_server_session_id_cacheshutdown_server_session_id_cacheget_ssl_version_from_major_minorget_supported_ssl_version_rangeReturns the protocol version, major in octet[1], minor in octet[0] Returns the protocol version as a descriptive stringReturns the protocol version as an enumerated constantReturns the major protocol versionReturns the minor protocol versionReturns creation time as a DateTime object in local time zoneReturns creation time as a DateTime object in UTC time zoneReturns last access time as a DateTime object in local time zoneReturns last access time as a DateTime object in UTC time zoneReturns expiration time as a DateTime object in local time zoneReturns expiration time as a DateTime object in UTC time zoneReturns the compression method enumReturns the compression method nameReturns the session ID as a SecItem objectReturns the auth algorithm enumReturns the auth algorithm nameReturns the symmetric cipher enumReturns the symmetric cipher nameReturns the symmetric key bitsReturns the symmetric key spaceReturns the effective key bitsReturns the mac algorithm enumReturns the mac algorithm nameReturns True if FIPS, False otherwiseReturns True if exportable, False otherwiseReturns True if nonstandard, False otherwiseXa`8ahaPa;|QTY,Y\YtY4Zt[[[[[,[D\\$\t4\T\d\\\\ ]$$]<4]TD]lT]d]t]]]]]],]D]\]t^^$^4^^^_,_D$_\4_tD_T_`` a< bT $bl b Tc ti doL ol p Tq q r s $s4 DsL 4u| v x 4} $~D 4|  4 D Dt D d T4$ d\4$$<TTlԏtD$TDlԔTԕt4Ttd4TD4Ĝ d4\D$d4Ddd$zRx $MFJ w?;*3$",D U:BHK aABt0U8U@USDNU5A T VAPVV,V DV \VtVVVVVVLD0B A  V$V<V TV lVVVV V V V V ,VDV \V tV xVpVhV`V XVTD J A  VTD J A ,V DV \V tV V V ,VADD0x AAE ,(WADD0x AAE 4W!Db J N J l L D L e K TXlXX}D@s A ,YADD0x AAE <YBIQ A(DP (A ABBC Lp_BIB R(A0A8D` 8A0A(B BBBH deUD G A 4PeBAD D0e  AABD 8fiD0Y C fvD ` L X H fD` J gDT4gDTLgDI,dgAUD4 AAH ,iAUDP AAC ,@kAUDP AAC <l}BIA Q(GR (A ABBD $4qAQ@ AI 4\qBKC G  AABF ,rAAQ0q AAJ ,0sAAQ0c AAH ,sAAQ0k AAH 4$ tXADD l AAI PCA,\ HtAAQ0k AAH $ tADP AG  uDML u=BBD A(J@ (A ABBG s (C ABBM L vFBBB H(D0A8DP 8D0A(B BBBE Ll w=BBD A(J@ (A ABBG s (C ABBM d xBEB E(D0F8DP 8C0A(B BBBG I 8F0A(B BBBH L$ {=BBD A(J@ (A ABBG s (C ABBM Lt |BEE B(G0D8DP 8D0A(B BBBE < P}.BIA Q(G (A ABBF 4 @~BDD  ALI AAB< ~$T ~$l ~$ MS`L HBBI C(D0W (D ABBD T(C ABB uD0e A , CAKD@ AAD < G C $\ AX0h AF $ AX0h AF  1DX D O 1DX D O 81DX D O XtD Y C ,D c I L8|D _ E lD c I |D _ E xqD Y C ؅|D _ E $8FH` H F A N`Dp H 44iAAD y AAG O AAG ,lHAXD0Z AAG $AQ d AI 40KAAD h DAE KCA$HAQ Y AD $$AQ ] AH $L(AQ Y AD $tNAs D C E A4SAAD s DAB KCA9D\ H O8D^ F O 8D^ F O$4@AQ@ AB \0DV F O,|AG F CG O AH $hAQ S AJ $ЋAQ Y AD 8b.BIA A(D0D (A ABBE O (A ABBK  (A ABBB } (A ABBK  (A ABBE &(A ABB@NNp !6 B M a q F X !` !oH0 ! <" o0oo*odx !FGG&G6GFGVGfGvGGGGGGGGGHH&H6HFHVHfHvHHHHHHHHHII&I6IFIVIfIvIIIIIIIIIJJ&J6JFJVJfJvJJJJJJJJJKK&K6KFKVKfKvKKKKKKKKKLL&L6LFLVLfLvLLLLLLLLLMM&M6MFMVMfMvMMThis module implements the SSL functionality in NSS SSL Version Range API ===================== This API should be used to control SSL 3.0 & TLS support instead of the older `SSLSocket.set_ssl_option()` API; however, `SSLSocket.set_ssl_option()` API MUST still be used to control SSL 2.0 support. In this version of libssl, SSL 3.0 and TLS 1.0 are enabled by default. Future versions of libssl may change which versions of the protocol are enabled by default. The protocol_variant enums (SSL_VARIANT_STREAM, SSL_VARIANT_DATAGRAM) indicates whether the protocol is of type stream or datagram. This must be provided to the functions that do not take an fd. Functions which take an fd will get the variant from the fd. Using the new version range API in conjunction with the older `SSLSocket.set_ssl_option()` API for controlling the enabled protocol versions may cause unexpected results. Going forward, we guarantee only the following: ``SSLSocket.get_ssl_option(ssl.SSL_ENABLE_TLS)`` will return True if *ANY* versions of TLS are enabled. ``SSLSocket.set_ssl_option(ssl.SSL_ENABLE_TLS, False)`` will disable *ALL* versions of TLS, including TLS 1.0 and later. The above two properties provide compatibility for applications that use `SSLSocket.set_ssl_option()` to implement the insecure fallback from TLS 1.x to SSL 3.0. ``SSLSocket.set_ssl_option(ssl.SSL_ENABLE_TLS, True)`` will enable TLS 1.0, and may also enable some later versions of TLS, if it is necessary to do so in order to keep the set of enabled versions contiguous. For example, if TLS 1.2 is enabled, then after ``SSLSocket.set_ssl_option(ss.SSL_ENABLE_TLS, True)``, TLS 1.0, TLS 1.1, and TLS 1.2 will be enabled, and the call will have no effect on whether SSL 3.0 is enabled. If no later versions of TLS are enabled at the time ``SSLSocket.set_ssl_option(ssl.SSL_ENABLE_TLS, True)`` is called, then no later versions of TLS will be enabled by the call. ``SSLSocket.set_ssl_option(ssl.SSL_ENABLE_SSL3, False)`` will disable SSL 3.0, and will not change the set of TLS versions that are enabled. ``SSLSocket.set_ssl_option(ssl.SSL_ENABLE_SSL3, True)`` will enable SSL 3.0, and may also enable some versions of TLS if TLS 1.1 or later is enabled at the time of the call, the same way ``SSLSocket.set_ssl_option(ssl.SSL_ENABLE_TLS, True)`` works, in order to keep the set of enabled versions contiguous. ssl_cipher_suite_from_name(name) -> int :Parameters: name : string name of SSL cipher enumerated constant Given the name of a SSL cipher constant return it's integer constant The string comparison is case insensitive. ssl_cipher_suite_name(cipher) -> string :Parameters: cipher : int SSL cipher enumerated constant Given an enumerated SSL Cipher constant return it's name as a string get_cipher_suite_info(suite) -> SSLCipherSuiteInfo :Parameters: suite : int a cipher suite enumerated constant Returns a `ssl.SSLCipherSuiteInfo`. set_default_ssl_version_range(min_version, max_version, protocol_variant=SSL_VARIANT_STREAM) :Parameters: min_version : int or string Either a SSL_LIBRARY_VERSION_* enumerated constant or it's string equivalent, see `ssl_library_version_from_name()` max_version : int or string Either a SSL_LIBRARY_VERSION_* enumerated constant or it's string equivalent, see `ssl_library_version_from_name()` protocol_variant : int One of: SSL_VARIANT_STREAM or SSL_VARIANT_DATAGRAM enumerated constants Sets the range of SSL3/TLS versions enabled by default for the given protocol variant. get_default_ssl_version_range(protocol_variant=SSL_VARIANT_STREAM, repr_kind=AsEnum) -> (min_version, max_version) :Parameters: protocol_variant : int One of: SSL_VARIANT_STREAM or SSL_VARIANT_DATAGRAM enumerated constants repr_kind : RepresentationKind constant Specifies what format the contents of the returned tuple will be in. May be one of: AsEnum The enumerated constant as an integer value. AsEnumName The name of the enumerated constant as a string. AsString A short friendly name for the enumerated constant. Returns the range of SSL3/TLS versions enabled by default for the given protocol variant. The result is a tuple of enumerations (min_version, max_version). get_supported_ssl_version_range(protocol_variant=SSL_VARIANT_STREAM, repr_kind=AsEnum) -> (min_version, max_version) :Parameters: protocol_variant : int One of: SSL_VARIANT_STREAM or SSL_VARIANT_DATAGRAM enumerated constants repr_kind : RepresentationKind constant Specifies what format the contents of the returned tuple will be in. May be one of: AsEnum The enumerated constant as an integer value. AsEnumName The name of the enumerated constant as a string. AsString A short friendly name for the enumerated constant. Returns the range of SSL3/TLS versions supported for the given protocol variant by the version of libssl linked-to at runtime. The result is a tuple of enumerations (min_version, max_version). ssl_library_version_from_name(name) -> int :Parameters: name : string name of SSL_LIBRARY_VERSION Given the name of a SSL_LIBRARY_VERSION return it's integer constant The string comparison is case insensitive. In addition to the names of the SSL_LIBRARY_VERSION constants the following aliases are recognized: +--------+-----------------------------+ | Alias | Constant | +========+=============================+ | ssl2 | SSL_LIBRARY_VERSION_2 | +--------+-----------------------------+ | ssl3 | SSL_LIBRARY_VERSION_3_0 | +--------+-----------------------------+ | tls1.0 | SSL_LIBRARY_VERSION_TLS_1_0 | +--------+-----------------------------+ | tls1.1 | SSL_LIBRARY_VERSION_TLS_1_1 | +--------+-----------------------------+ | tls1.2 | SSL_LIBRARY_VERSION_TLS_1_2 | +--------+-----------------------------+ | tls1.3 | SSL_LIBRARY_VERSION_TLS_1_3 | +--------+-----------------------------+ ssl_library_version_name(ssl_library_version, repr_kind=AsEnumName) -> string :Parameters: ssl_library_version : int SSL_LIBRARY_VERSION constant repr_kind : RepresentationKind constant Specifies what format the contents of the returned tuple will be in. May be one of: AsEnum The enumerated constant as an integer value. AsEnumName The name of the enumerated constant as a string. AsString A short friendly name for the enumerated constant. Given a SSL_LIBRARY_VERSION constant return it's according to repr_kind get_ssl_version_from_major_minor(major, minor, repr_kind=AsString) -> Object :Parameters: major : int The major version number. minor : int The minor version number. repr_kind : RepresentationKind constant Specifies what format the return value will be in. May be one of: AsEnum The enumerated constant as an integer value. AsEnumName The name of the enumerated constant as a string. AsString A short friendly name for the enumerated constant. Given the major and minor SSL protocol versions return the SSL version it's according to repr_kind Example: get_ssl_version_from_major_minor(3, 1, nss.AsString) -> 'tls1.0' set_france_policy() Configures the SSL cipher suites to conform with French import regulations related to software products with encryption features. set_export_policy() Configures the SSL cipher suites to conform with current U.S. export regulations related to international software products with encryption features. set_domestic_policy() Configures cipher suites to conform with current U.S. export regulations related to domestic software products with encryption features. shutdown_server_session_id_cache() clear_session_cache() You must call ssl.clear_session_cache() after you use one of the SSL Export Policy Functions to change cipher suite policy settings or use ssl.set_default_cipher_pref() to enable or disable any cipher suite. Otherwise, the old settings remain in the session cache and will be used instead of the new settings. This function clears only the client cache. The client cache is not configurable. It is located in RAM (not on disk). set_max_server_cache_locks(max_locks) :Parameters: max_locks : int Maximum number of locks Set the configured maximum number of mutexes used for the server's store of SSL sessions. This value is used by the server session ID cache initialization functions. Note that on some platforms, these mutexes are actually implemented with POSIX semaphores, or with unnamed pipes. The default value varies by platform. An attempt to set a too-low maximum will return an error and the configured value will not be changed. get_max_server_cache_locks() -> int Get the configured maximum number of mutexes used for the server's store of SSL sessions. This value is used by the server session ID cache initialization functions. config_mp_server_sid_cache(max_cache_entries=0, ssl2_timeout=0, ssl3_timeout=0, directory=None) :Parameters: max_cache_entries : integer The maximum number of entries in the cache. If ZERO the server default value is used (10,000). ssl2_timeout : integer The lifetime in seconds of an SSL2 session. The minimum timeout value is 5 seconds and the maximum is 24 hours. Values outside this range are replaced by the server default value (100 seconds). ssl3_timeout : integer The lifetime in seconds of an SSL3 session. The minimum timeout value is 5 seconds and the maximum is 24 hours. Values outside this range are replaced by the server default value (24 hours). directory : string A string specifying the pathname of the directory that will contain the session cache. If None the server default value is used (/tmp (Unix) or \temp (NT)). This function sets up a Server Session ID (SID) cache that is safe for access by multiple processes on the same system. Like `ssl.config_server_session_id_cache()`, with one important difference. If the application will run multiple processes (as opposed to, or in addition to multiple threads), then it must call this function, instead of calling `ssl.config_server_session_id_cache()`. This has nothing to do with the number of processors, only processes. config_server_session_id_cache_with_opt(max_cache_entries=0, max_cert_cache_entries=0, max_server_name_cache_entries=0, ssl2_timeout=0, ssl3_timeout=0, directory=None, enable_mp_cache=False) :Parameters: max_cache_entries : integer The maximum number of entries in the cache. If ZERO the server default value is used (10,000). max_cert_cache_entries : integer The maximum number of entries in the cert cache. If ZERO the server default value is used (10,000). max_server_name_cache_entries : integer The maximum number of entries in the server name cache. If ZERO the server default value is used (10,000). ssl2_timeout : integer The lifetime in seconds of an SSL2 session. The minimum timeout value is 5 seconds and the maximum is 24 hours. Values outside this range are replaced by the server default value (100 seconds). ssl3_timeout : integer The lifetime in seconds of an SSL3 session. The minimum timeout value is 5 seconds and the maximum is 24 hours. Values outside this range are replaced by the server default value (24 hours). directory : string A string specifying the pathname of the directory that will contain the session cache. If None the server default value is used (/tmp (Unix) or \temp (NT)). enable_mp_cache : bool If True enable the multi-process cache. Configure a secure server's session-id cache. Depends on value of enable_mp_cache, configures multi-proc or single proc cache. A zero value or a value that is out of range for any of the parameters causes the server default value to be used in the server cache. Note, this function only affects the server cache, not the client cache. config_server_session_id_cache(max_cache_entries=0, ssl2_timeout=0, ssl3_timeout=0, directory=None) :Parameters: max_cache_entries : integer The maximum number of entries in the cache. If ZERO the server default value is used (10,000). ssl2_timeout : integer The lifetime in seconds of an SSL2 session. The minimum timeout value is 5 seconds and the maximum is 24 hours. Values outside this range are replaced by the server default value (100 seconds). ssl3_timeout : integer The lifetime in seconds of an SSL3 session. The minimum timeout value is 5 seconds and the maximum is 24 hours. Values outside this range are replaced by the server default value (24 hours). directory : string A string specifying the pathname of the directory that will contain the session cache. If None the server default value is used (/tmp (Unix) or \temp (NT)). If you are writing an application which will use SSL sockets to handshake as a server, you must call config_server_session_id_cache() to configure the session caches for server sessions. If your server application uses multiple processes (instead of or in addition to multiple threads), use `ssl.config_mp_server_sid_cache()` instead. You must use one of these functions to create a server cache. This function creates two caches: the server session ID cache (also called the server session cache, or server cache), and the client-auth certificate cache (also called the client cert cache, or client auth cache). Both caches are used only for sessions where the program will handshakes as a server. The client-auth certificate cache is used to remember the certificates previously presented by clients for client certificate authentication. A zero value or a value that is out of range for any of the parameters causes the server default value to be used in the server cache. Note, this function only affects the server cache, not the client cache. get_cipher_policy(cipher) -> policy :Parameters: cipher : integer The cipher suite enumeration (e.g. SSL_RSA_WITH_NULL_MD5, etc.) Returns the cipher policy.set_cipher_pref(cipher, enabled) :Parameters: cipher : integer The cipher suite enumeration (e.g. SSL_RSA_WITH_NULL_MD5, etc.) enabled : bool Boolean value Tells the SSL library that the specified cipher suite is allowed by the application's export license, or is not allowed by the application's export license, or is allowed to be used only with a Step-Up certificate. It overrides the factory default policy for that cipher suite. The default policy for all cipher suites is SSL_NOT_ALLOWED, meaning that the application's export license does not approve the use of this cipher suite. A U.S.domestic version of a product typically sets all cipher suites to SSL_ALLOWED. This setting is used to separate export and domestic versions of a product, and is not intended to express user cipher preferences. get_default_cipher_pref(cipher) -> enabled :Parameters: cipher : integer The cipher suite enumeration (e.g. SSL_RSA_WITH_NULL_MD5, etc.) Returns the application default preference for the specified SSL2, SSL3, or TLS cipher. set_cipher_pref(cipher, enabled) :Parameters: cipher : integer The cipher suite enumeration (e.g. SSL_RSA_WITH_NULL_MD5, etc.) enabled : bool Boolean value Sets the application default preference for the specified SSL2, SSL3, or TLS cipher. A cipher suite is used only if the policy allows it and the preference for it is set to True. This function must be called once for each cipher you want to enable or disable by default. Note, which cipher suites are permitted or disallowed are modified by previous calls to one or more of the SSL Export Policy Functions. get_ssl_default_option(value) Gets the default value of a specified SSL option for all subsequently opened sockets as long as the current application program is running. Refer to the documentation for `SSLSocket.set_ssl_option()` for an explanation of the possible values. set_ssl_default_option(option, value) Changes the default value of a specified SSL option for all subsequently opened sockets as long as the current application program is running. Refer to the documentation for `SSLSocket.set_ssl_option()` for an explanation of the possible values. SSLChannelInformation(obj) An object representing SSLChannelInformation. SSLCipherSuiteInformation(obj) An object representing SSLCipherSuiteInformation. SSLSocket(family=PR_AF_INET, type=PR_DESC_SOCKET_TCP) :Parameters: family : integer one of: - PR_AF_INET - PR_AF_INET6 - PR_AF_LOCAL type : integer one of: - PR_DESC_SOCKET_TCP - PR_DESC_SOCKET_UDP Create a new NSPR SSL socket: connection_info_str() -> str Returns a string describing the properties of the SSL connection. get_negotiated_host() -> string Returns SNI negotiated host name. get_ssl_channel_info() -> SSLChannelInfo Returns a `ssl.SSLChannelInfo` describing the parameters of the connection. get_ssl_version_range(repr_kind=AsEnum) -> (min_version, max_version) :Parameters: repr_kind : RepresentationKind constant Specifies what format the contents of the returned tuple will be in. May be one of: AsEnum The enumerated constant as an integer value. AsEnumName The name of the enumerated constant as a string. AsString A short friendly name for the enumerated constant. Returns the range of SSL3/TLS versions enabled for the socket. The result is a tuple whose contents are dictated by repr_kind. set_ssl_version_range(min_version, max_version) :Parameters: min_version : int or string Either a SSL_LIBRARY_VERSION_* enumerated constant or it's string equivalent, see `ssl_library_version_from_name()` max_version : int or string Either a SSL_LIBRARY_VERSION_* enumerated constant or it's string equivalent, see `ssl_library_version_from_name()` Sets the range of enabled SSL3/TLS versions for this socket. import_tcp_socket(osfd) -> Socket :Parameters: osfd : integer file descriptor of the SOCK_STREAM socket to import Returns a Socket object that uses the specified socket file descriptor for communication. rehandshake_timeout(flush_cache, timeout) :Parameters: flush_cache : bool cache flush flag timeout : integer timeout value expressed as a NSPR interval See the documentation for `SSLSocket.rehandshake()`. This function adds a timeout interval. rehandshake(flush_cache) :Parameters: flush_cache : bool - If flush_cache is True, the SSL3 cache entry will be flushed first, ensuring that a full SSL handshake from scratch will occur. - If flush_cache is False, and an SSL connection is established, it will do the much faster session restart handshake. This will regenerate the symmetric session keys without doing another private key operation. Causes SSL to begin a new SSL 3.0 handshake on a connection that has already completed one handshake. If flush_cache is True, the `SSLSocket.rehandshake()` function invalidates the current SSL session associated with the specified SSLSocket from the session cache and starts another full SSL 3.0 handshake. It is for use with SSL 3.0 only. You can call this function to redo the handshake if you have changed one of the socket's configuration parameters (for example, if you are going to request client authentication). Setting flush_cache to False can be useful, for example, if you are using export ciphers and want to keep changing the symmetric keys to foil potential attackers. `SSLSocket.rehandshake()` only initiates the new handshake by sending the first message of that handshake. To drive the new handshake to completion, you must either call `SSLSocket.force_handshake()` or do another I/O operation (read or write) on the socket. A call to `SSLSocket.rehandshake()` is typically followed by a call to `SSLSocket.force_handshake()`. force_handshake_timeout(timeout) :Parameters: timeout : integer timeout value expressed as a NSPR interval See the documentation for `SSLSocket.force_handshake()`. This function adds a timeout interval. force_handshake() Drives a handshake for a specified SSLSocket to completion on a socket that has already been prepared to do a handshake or is in the middle of doing a handshake. When you are forcing the initial handshake on a blocking socket, this function returns when the handshake is complete. For subsequent handshakes, the function can return either because the handshake is complete, or because application data has been received on the connection that must be processed (that is, the application must read it) before the handshake can continue. You can use `SSLSocket.force_handshake()` when a handshake is desired but neither end has anything to say immediately. This occurs, for example, when an HTTPS server has received a request and determines that before it can answer the request, it needs to request an authentication certificate from the client. At the HTTP protocol level, nothing more is being said (that is, no HTTP request or response is being sent), so the server uses `SSLSocket.force_handshake()` to make the handshake occur. `SSLSocket.force_handshake()` does not prepare a socket to do a handshake by itself. The following functions prepare a socket to do a handshake: * `SSLSocket.connect()` * `SSLSocket.accept()` * `SSLSocket.rehandshake()` (after the first handshake is finished) * SSLSocket.reset_handshake (for sockets that were connected or accepted prior to being imported) A call to `SSLSocket.force_handshake()` will almost always be preceded by one of those functions. In versions prior to NSS 1.2, you cannot force a subsequent handshake. If you use this function after the initial handshake, it returns immediately without forcing a handshake. reset_handshake(as_server) :Parameters: as_server : bool - True means the socket will attempt to handshake as a server the next time it tries, and - False means the socket will attempt to handshake as a client the next time it tries. Calling `SSLSocket.reset_handshake()` causes the SSL handshake protocol to start from the beginning on the next I/O operation. That is, the handshake starts with no cipher suite already in use, just as it does on the first handshake on a new socket. When an application imports a socket into SSL after the TCP connection on that socket has already been established, it must call `SSLSocket.reset_handshake()` to determine whether SSL should behave like an SSL client or an SSL server. Note that this step would not be necessary if the socket weren't already connected. For an SSL socket that is configured before it is connected, SSL figures this out when the application calls `SSLSocket.connect()` or `SSLSocket.accept()`. If the socket is already connected before SSL gets involved, you must provide this extra hint. set_certificate_db(certdb) :Parameters: certdb : CertDB object The certification database as a CertDB object Sets the Certificate Database on a specific SSLSocket. get_hostname() `SSLSocket.get_hostname()` is used by certificate authentication callback function to obtain the domain name of the desired SSL server for the purpose of comparing it with the domain name in the certificate presented by the server actually contacted. set_hostname(url) :Parameters: url : string A string specifying the desired server's domain name. The client application's certificate authentication callback function needs to compare the domain name in the server's certificate against the domain name of the server the client was attempting to contact. This step is vital because it is the client's only protection against a man-in-the-middle attack. The client application uses `SSLSocket.set_hostname()` to set the domain name of the desired server before performing the first SSL handshake. The client application's certificate authentication callback function gets this string by calling `SSLSocket.get_hostname()`. get_cipher_pref(cipher) -> enabled :Parameters: cipher : integer The cipher suite enumeration (e.g. SSL_RSA_WITH_NULL_MD5, etc.) Returns the preference for the specified SSL2, SSL3, or TLS cipher on the socket. set_cipher_pref(cipher, enabled) :Parameters: cipher : integer The cipher suite enumeration (e.g. SSL_RSA_WITH_NULL_MD5, etc.) enabled : bool or int True enables, False disables Sets preference for the specified SSL2, SSL3, or TLS cipher on the socket. A cipher suite is used only if the policy allows it and the preference for it is set to True. This function must be called once for each cipher you want to enable or disable by default. Note, which cipher suites are permitted or disallowed are modified by previous calls to one or more of the SSL Export Policy Functions. set_sock_peer_id(id) :Parameters: id : integer An ID number assigned by the application to keep track of the SSL session associated with the peer. Associates a peer ID with a socket to facilitate looking up the SSL session when it is tunneling through a proxy. SSL peers frequently reconnect after a relatively short time has passed. To avoid the overhead of repeating the full SSL handshake in situations like this, the SSL protocol supports the use of a session cache, which retains information about each connection for some predetermined length of time. For example, a client session cache includes the hostname and port number of each server the client connects with, plus additional information such as the master secret generated during the SSL handshake. For a direct connection with a server, the hostname and port number are sufficient for the client to identify the server as one for which it has an entry in its session cache. However, the situation is more complicated if the client is on an intranet and is connecting to a server on the Internet through a proxy. In this case, the client first connects to the proxy, and the client and proxy exchange messages specified by the proxy protocol that allow the proxy, in turn, to connect to the requested server on behalf of the client. This arrangement is known as SSL tunneling. Client session cache entries for SSL connections that tunnel through a particular proxy all have the same hostname and port number--that is, the hostname and port number of the proxy. To determine whether a particular server with which the client is attempting to connect has an entry in the session cache, the session cache needs some additional information that identifies that server. This additional identifying information is known as a peer ID. The peer ID is associated with a socket, and must be set before the SSL handshake occurs--that is, before the SSL handshake is initiated by a call to a function such as `SSLSocket.read()` or `SSLSocket.force_handshake()`. To set the peer ID, you use `SSLSocket.set_sock_peer_id()`. In summary, SSL uses three pieces of information to identify a server's entry in the client session cache: the hostname, port number, and peer ID. In the case of a client that is tunneling through a proxy, the hostname and port number identify the proxy, and the peer ID identifies the desired server. It is recommended that the client set the peer ID to a string that consists of the server's hostname and port number, like this:'www.hostname.com:387'. This convention guarantees that each server has a unique entry in the client session cache. get_session_id() -> id Returns the SSL session ID as a SecItem. get_security_status() -> on, cipher, key_size, secret_key_size, issuer, subject Gets information about the security parameters of the current connection. Returns the tuple (on, cipher, key_size, secret_key_size, issuer, subject) The interpretation of each value is: on An integer, will be one of these values: - SSL_SECURITY_STATUS_OFF - SSL_SECURITY_STATUS_ON_HIGH - SSL_SECURITY_STATUS_ON_LOW cipher A string specifying the name of the cipher. - For SSL v2, the string is one of the following: - RC4 - RC4-Export - RC2-CBC - RC2-CBC-Export - DES-CBC, - DES-EDE3-CBC - For SSL v3, the string is one of the following: - RC4 - RC4-40 - RC2-CBC - RC2-CBC-40 - DES-CBC - 3DES-EDE-CBC - DES-CBC-40 keySize An integer, the session key size used, in bits. secret_key_size An integer. indicates the size, in bits, of the secret portion of the session key used (also known as the 'effective key size'). The secret key size is never greater than the session key size. issuer A string specifying the DN of the issuer of the certificate at the other end of the connection, in RFC1485 format. If no certificate is supplied, the string is 'no certificate' subject A string specifying the distinguished name of the certificate at the other end of the connection, in RFC1485 format. If no certificate is supplied, the string is 'no certificate' data_pending() Returns the number of bytes waiting in internal SSL buffers to be read by the local application from the SSL socket. If SSL_SECURITY has not been enabled with a call to `ssl.set_ssl_default_option()` or `SSLSocket.set_ssl_option()`, the function returns zero. invalidate_session() After you call SSLSSocket.invalidate_session(), the existing connection using the session can continue, but no new connections can resume this SSL session. get_certificate() -> Certficate Returns the certificate associated with the socket or None if not previously set. get_peer_certificate() -> Certficate `SSLSocket.get_peer_certificate()` is used by certificate authentication and bad-certificate callback functions to obtain the certificate under scrutiny. If the client calls `SSLSocket.get_peer_certificate()`, it always returns the server's certificate. If the server calls `SSLSocket.get_peer_certificate()`, it may return None if client authentication is not enabled or if the client had no certificate when asked. config_secure_server(cert, key, kea) :Parameters: cert : Certificate object Server's certificate as a Certificate object key : PrivateKey object Server's private key as a PrivateKey object kea : integer Key exchange type (e.g. ssl_kea_rsa, ssl_kea_dh, etc.) Configures a listen socket with the information needed to handshake as an SSL server. `SSLSocket.config_secure_server()` requires the certificate for the server and the server's private key. get_pkcs11_pin_arg() Returns a tuple of arguments or None if not previously set with `SSLSocket.set_pkcs11_pin_arg()` set_pkcs11_pin_arg([user_dataN, ...]) :Parameters: user_dataN : object ... zero or more caller supplied parameters which will be passed to the pk11.password_callback() set_handshake_callback(callback, [user_data1, ...]) :Parameters: callback : function pointer callback to invoke user_dataN: zero or more caller supplied parameters which will be passed to the callback The callback has the following signature:: callback(socket, [user_data1, ...]) socket the SSL socket the handshake has completed on user_dataN zero or more caller supplied optional parameters Sets up a callback function used by SSL to inform either a client application or a server application when the handshake is completed. Example:: def handshake_callback(sock): print 'handshake complete, peer = %s' % (sock.get_peer_name()) sock = ssl.SSLSocket(net_addr.family) sock.set_handshake_callback(handshake_callback) set_client_auth_data_callback(callback, [user_data1, ...]) :Parameters: callback : function pointer callback to invoke user_dataN: zero or more caller supplied parameters which will be passed to the callback The callback has the following signature:: callback(ca_names, [user_data1, ...]) -> (Certificate, PrivateKey) ca_names Sequence of CA distinguished names that the server accepts. Each item in the sequence must be a SecItem object containing a distinguished name. user_dataN zero or more caller supplied optional parameters The callback returns Certificate and PrivateKey if successful, or None if the callback failed. Defines a callback function for SSL to use in a client application when a server asks for client authentication information. This callback function is required if your client application is going to support client authentication. The callback function set with `SSLSocket.set_client_auth_data_callback()` is used to get information from a client application when authentication is requested by the server. The callback function retrieves the client's private key and certificate. SSL provides an implementation of this callback function; see NSS_GetClientAuthData for details. Unlike SSL_AuthCertificate, NSS_GetClientAuthData is not a default callback function. You must set it explicitly with `SSLSocket.set_client_auth_data_callback()` if you want to use it. Example:: def client_auth_data_callback(ca_names, chosen_nickname, password, certdb): cert = None if chosen_nickname: try: cert = nss.find_cert_from_nickname(chosen_nickname, password) priv_key = nss.find_key_by_any_cert(cert, password) return cert, priv_key except NSPRError, e: return False else: nicknames = nss.get_cert_nicknames(certdb, nss.SEC_CERT_NICKNAMES_USER) for nickname in nicknames: try: cert = nss.find_cert_from_nickname(nickname, password) if cert.check_valid_times(): if cert.has_signer_in_ca_names(ca_names): priv_key = nss.find_key_by_any_cert(cert, password) return cert, priv_key except NSPRError, e: pass return False sock = ssl.SSLSocket(net_addr.family) sock.set_client_auth_data_callback(client_auth_data_callback, nickname, password, nss.get_default_certdb()) set_auth_certificate_callback(callback, [user_data1, ...]) :Parameters: callback : function pointer callback to invoke user_dataN: zero or more caller supplied parameters which will be passed to the callback The callback has the following signature:: callback(socket, check_sig, is_server, [user_data1, ...]) -> bool socket the SSLSocket object check_sig boolean, True means signatures are to be checked and the certificate chain is to be validated. False means they are not to be checked. (The value is normally True.) is_server boolean, True means the callback function should evaluate the certificate as a server does, treating the remote end as a client. False means the callback function should evaluate the certificate as a client does, treating the remote end as a server. user_dataN zero or more caller supplied optional parameters The callback function should return True if authentication is successful, False otherwise. If authentication is not successful the callback should indicate the reason for the failure (if possible) by calling nss.set_error() with the appropriate error code. The callback function obtains the certificate to be authenticated by calling ssl.get_peer_certificate(). If is_server is false, the callback should also check that the domain name in the remote server's certificate matches the desired domain name specified in a previous call to ssl.set_hostname(). To obtain that domain name, the callback calls ssl.get_hostname(). The callback may need to call one or more PK11 functions to obtain the services of a PKCS 11 module. Some of the PK11 functions require a PIN argument (see ssl.set_pkcs11_pin_arg() for details). To obtain the value that was set with ssl.set_pkcs11_pin_arg(), the callback calls ssl.get_pkcs11_pin_arg(). If the callback returns False, the SSL connection is terminated immediately unless the application has supplied a bad-certificate callback function by having previously called ssl.set_bad_cert_callback(). A bad-certificate callback function gives the application the opportunity to choose to accept the certificate as authentic and authorized even though it failed the check performed by the certificate authentication callback function. Example:: def auth_certificate_callback(sock, check_sig, is_server, certdb): cert_is_valid = False cert = sock.get_peer_certificate() pin_args = sock.get_pkcs11_pin_arg() if pin_args is None: pin_args = () # Define how the cert is being used based upon the is_server flag. This may # seem backwards, but isn't. If we're a server we're trying to validate a # client cert. If we're a client we're trying to validate a server cert. if is_server: intended_usage = nss.certificateUsageSSLClient else: intended_usage = nss.certificateUsageSSLServer try: # If the cert fails validation it will raise an exception, the errno attribute # will be set to the error code matching the reason why the validation failed # and the strerror attribute will contain a string describing the reason. approved_usage = cert.verify_now(certdb, check_sig, intended_usage, *pin_args) except Exception, e: cert_is_valid = False return cert_is_valid # Is the intended usage a proper subset of the approved usage if approved_usage & intended_usage: cert_is_valid = True else: cert_is_valid = False # If this is a server, we're finished if is_server or not cert_is_valid: return cert_is_valid # Certificate is OK. Since this is the client side of an SSL # connection, we need to verify that the name field in the cert # matches the desired hostname. This is our defense against # man-in-the-middle attacks. hostname = sock.get_hostname() try: # If the cert fails validation it will raise an exception cert_is_valid = cert.verify_hostname(hostname) except Exception, e: cert_is_valid = False return cert_is_valid return cert_is_valid accept(timeout=PR_INTERVAL_NO_TIMEOUT) -> (Socket, NetworkAddress) :Parameters: timeout : integer optional timeout value expressed as a NSPR interval The socket is a rendezvous socket that has been bound to an address with Socket.bind() and is listening for connections after a call to Socket.listen(). Socket.accept() accepts the first connection from the queue of pending connections and creates a new socket for the newly accepted connection. The rendezvous socket can still be used to accept more connections. Socket.accept() blocks the calling thread until either a new connection is successfully accepted or an error occurs. If the timeout parameter is not PR_INTERVAL_NO_TIMEOUT and no pending connection can be accepted before the time limit, Socket.accept() raises a nss.error.NSPRError exception with the error code PR_IO_TIMEOUT_ERROR. Socket.accept() returns a tuple containing a new Socket object and Networkaddress object for the peer. get_ssl_option(value) -> value :Parameters: value : integer a constant value identifying which option to query Retrieves the value of a specified SSL option. Refer to the documentation for `SSLSocket.set_ssl_option()` for an explanation of the possible values. set_ssl_option(option, value) Sets a single configuration parameter on this socket. Call once for each parameter you want to change. The configuration parameters are listed below. SSL_SECURITY (default=True) Enables use of security protocol. *WARNING: If you turn this option off, the session will not be an SSL session and will not have certificate-based authentication, tamper detection, or encryption.* SSL_REQUEST_CERTIFICATE: (default=False) Is a server option that requests a client to authenticate itself. SSL_REQUIRE_CERTIFICATE: (default=SSL_REQUIRE_FIRST_HANDSHAKE) Is a server option that requires a client to authenticate itself (only if SSL_REQUEST_CERTIFICATE is also on). If client does not provide certificate, the connection terminates. SSL_HANDSHAKE_AS_CLIENT: (default=False) Controls the behavior of `SSLSocket.accept()`,. If this option is off, the `SSLSocket.accept()` configures the SSL socket to handshake as a server. If it is on, then `SSLSocket.accept()` configures the SSL socket to handshake as a client, even though it accepted the connection as a TCP server. SSL_HANDSHAKE_AS_SERVER: (default=False) Controls the behavior of `SSLSocket.connect()`. If this option is off, then `SSLSocket.connect()` configures the SSL socket to handshake as a client. If it is on, then `SSLSocket.connect()` configures the SSL socket to handshake as a server, even though it connected as a TCP client. SSL_ENABLE_FDX: (default=False) Tells the SSL library whether the application will have two threads, one reading and one writing, or just one thread doing reads and writes alternately. The factory setting for this option (which is the default, unless the application changes the default) is off, which means that the application will not do simultaneous reads and writes. An application that needs to do simultaneous reads and writes should set this to True. In NSS 2.8, the SSL_ENABLE_FDX option only affects the behavior of nonblocking SSL sockets. See the description below for more information on this option. SSL_ENABLE_SSL3: (default=True) Enables the application to communicate with SSL v3. If you turn this option off, an attempt to establish a connection with a peer that understands only SSL v3 will fail. [1]_ SSL_ENABLE_SSL2: (default=True) Enables the application to communicate with SSL v2. If you turn this option off, an attempt to establish a connection with a peer that understands only SSL v2 will fail. [1]_ SSL_ENABLE_TLS: (default=True) Is a peer of the SSL_ENABLE_SSL2 and SSL_ENABLE_SSL3 options. The IETF standard Transport Layer Security (TLS) protocol, RFC 2246, is a modified version of SSL3. It uses the SSL version number 3.1, appearing to be a 'minor' revision of SSL3.0. NSS 2.8 supports TLS in addition to SSL2 and SSL3. You can think of it as 'SSL_ENABLE_SSL3.1.' See the description below for more information about this option. [1]_ SSL_V2_COMPATIBLE_HELLO: (default=True) Tells the SSL library whether or not to send SSL3 client hello messages in SSL2-compatible format. If set to True, it will; otherwise, it will not. See the description below for more information on this option. SSL_NO_CACHE: (default=False) Disallows use of the session cache. Factory setting is off. If you turn this option on, this socket will be unable to resume a session begun by another socket. When this socket's session is finished, no other socket will be able to resume the session begun by this socket. SSL_ROLLBACK_DETECTION: (default=True) Disables detection of a rollback attack. Factory setting is on. You must turn this option off to interoperate with TLS clients ( such as certain versions of Microsoft Internet Explorer) that do not conform to the TLS specification regarding rollback attacks. Important: turning this option off means that your code will not comply with the TLS 3.1 and SSL 3.0 specifications regarding rollback attack and will therefore be vulnerable to this form of attack. Keep the following in mind when deciding on the operating parameters you want to use with a particular socket. Turning on SSL_REQUIRE_CERTIFICATE will have no effect unless SSL_REQUEST_CERTIFICATE is also turned on. If you enable SSL_REQUEST_CERTIFICATE, then you should explicitly enable or disable SSL_REQUIRE_CERTIFICATE rather than allowing it to default. Enabling the SSL_REQUIRE_CERTIFICATE option is not recommended. If the client has no certificate and this option is enabled, the client's connection terminates with an error. The user is likely to think something is wrong with either the client or the server, and is unlikely to realize that the problem is the lack of a certificate. It is better to allow the SSL handshake to complete and then return an error message to the client that informs the user of the need for a certificate. The SSL protocol is defined to be able to handle simultaneous two-way communication between applications at each end of an SSL connection. Two-way simultaneous communication is also known as'Full Duplex', abbreviated FDX. However, most application protocols that use SSL are not two-way simultaneous, but two-way alternate, also known as 'Half Dupled'; that is, each end takes turns sending, and each end is either sending, or receiving, but not both at the same time. For an application to do full duplex, it would have two threads sharing the socket; one doing all the reading and the other doing all the writing. The SSL_ENABLE_FDX option tells the SSL library whether the application will have two threads, one reading and one writing, or just one thread doing reads and writes alternately. If an SSL3 client hello message is sent to a server that only understands SSL2 and not SSL3, then the server will interpret the SSL3 client hello as a very large message, and the connection will usually seem to 'hang' while the SSL2 server expects more data that will never arrive. For this reason, the SSL3 spec allows SSL3 client hellos to be sent in SSL2 format, and it recommends that SSL3 servers all accept SSL3 client hellos in SSL2 format. When an SSL2-only server receives an SSL3 client hello in SSL2 format, it can (and probably will) negotiate the protocol version correctly, not causing a 'hang'. Some applications may wish to force SSL3 client hellos to be sent in SSL3 format, not in SSL2-compatible format. They might wish to do this if they knew, somehow, that the server does not understand SSL2-compatible client hello messages. SSL_V2_COMPATIBLE_HELLO tells the SSL library whether or not to send SSL3 client hello messages in SSL2-compatible format. Note that calling `SSLSocket.set_ssl_option()` to set SSL_V2_COMPATIBLE_HELLO to False implicitly also sets the SSL_ENABLE_SSL2 option to False for that SSL socket. Calling SSL_EnableDefault to change the application default setting for SSL_V2_COMPATIBLE_HELLO to False implicitly also sets the default value for SSL_ENABLE_SSL2 option to False for that application. The options SSL_ENABLE_SSL2, SSL_ENABLE_SSL3, and SSL_ENABLE_TLS can each be set to True or False independently of each other. NSS 2.8 and later versions will negotiate the highest protocol version with the peer application from among the set of protocols that are commonly enabled in both applications. [1]_ Note that SSL3 and TLS share the same set of cipher suites. When both SSL3 and TLS are enabled, all SSL3/TLS cipher suites that are enabled are enabled for both SSL3 and TLS. When an application imports a socket into SSL after the TCP connection on that socket has already been established, it must call `SSLSocket.reset_handshake()` to indicate whether the socket is for a client or server. At first glance this may seem unnecessary, since `SSLSocket.set_ssl_option()` can set SSL_HANDSHAKE_AS_CLIENT or SSL_HANDSHAKE_AS_SERVER. However, these settings control the behavior of `SSLSocket.connect()` and `SSLSocket.accept()` only; if you don't call one of those functions after importing a non-SSL socket with SSL_Import (as in the case of an already established TCP connection), SSL still needs to know whether the application is functioning as a client or server. If a socket file descriptor is imported as an SSL socket before it is connected, it is implicitly configured to handshake as a client or handshake as a server when the connection is made. If the application calls `SSLSocket.connect()` (connecting as a TCP client), then the SSL socket is (by default) configured to handshake as an SSL client. If the application calls `SSLSocket.accept()` (connecting the socket as a TCP server) then the SSL socket is (by default) configured to handshake as an SSL server. SSL_HANDSHAKE_AS_CLIENT and SSL_HANDSHAKE_AS_SERVER control this implicit configuration. Both SSL_HANDSHAKE_AS_CLIENT and SSL_HANDSHAKE_AS_SERVER are initially set to off--that is, the process default for both values is False when the process begins. The process default can be changed from the initial values by using SSL_EnableDefault, and the value for a particular socket can be changed by using `SSLSocket.set_ssl_option()`. If a socket that is already connected gets imported into SSL after it has been connected (that is, after `SSLSocket.accept()` or `SSLSocket.connect()` has returned), then no implicit SSL handshake configuration as a client or server will have been done by `SSLSocket.connect()` or `SSLSocket.accept()` on that socket. In this case, a call to `SSLSocket.reset_handshake()` is required to explicitly configure the socket to handshake as a client or as a server. If `SSLSocket.reset_handshake()` is not called to explicitly configure the socket handshake, a crash is likely to occur when the first I/O operation is done on the socket after it is imported into SSL. .. [1] See the "SSL Version Range API" section in the module documentation for updated recomendations on protocol selection. format_lines(level=0) -> [(level, string),...] :Parameters: level : integer Initial indentation level, all subsequent indents are relative to this starting level. Formats the object into a sequence of lines with indent level information. The return value is a list where each list item is a tuple. The first item in the tuple is an integer representing the indentation level for that line. Any remaining items in the tuple are strings to be output on that line. The output of this function can be formatted into a single string by calling `nss.nss.indented_format()`, e.g.: print indented_format(obj.format_lines()) The reason this function returns a tuple as opposed to an single indented string is to support other text formatting systems such as GUI's with indentation controls. See `nss.nss.indented_format()` for a complete explanation. format(level=0, indent=' ') -> string) :Parameters: level : integer Initial indentation level, all subsequent indents are relative to this starting level. indent : string string replicated once for each indent level then prepended to output line This is equivalent to: indented_format(obj.format_lines()) on an object providing a format_lines() method. I",2DQ^2DQ^2hDQ^"""",%,%!RU!8@T!`R! `Q! 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