֛h" %SrSSKJr SSKJrJrJrJr SSKJ r J r SSK J r J r Jr SSKJr \ (aSSKJr "SS \ 5r"S S \ 5r"S S \5r"SS\5r"SS\5r\"\5"SS55r\"\5"SS55r\"\5"SS55r\"\5"SS55r\"\5"SS55r\"\5"SS55r\"\5"SS55r\"\5"S S!55r\"5\"5\"5\"5\"5\"5\"5\"5S".rS#\ S$'S,S%jr!S-S&jr"S-S'jr#S.S(jr$S/S)jr%S0S*jr&g+)1z SSH key exchange handling. ) annotations)sha1sha256sha384sha512) TYPE_CHECKINGProtocol) Attribute Interface implementer)error)_Hashc"\rSrSrSSSjjrSrg) _HashFactorycgN)selfdatas ZC:\Users\psant\Downloads\Noiseback\school\venv\Lib\site-packages\twisted/conch/ssh/_kex.py__call___HashFactory.__call__s rN).)rbytesreturnr)__name__ __module__ __qualname____firstlineno__r__static_attributes__rrrrrs   rrcN\rSrSr%Sr\"S5rS\S'\"S5rS\S'S r g ) _IKexAlgorithmz: An L{_IKexAlgorithm} describes a key exchange algorithm. zAn L{int} giving the preference of the algorithm when negotiating key exchange. Algorithms with lower precedence values are more preferred.int preferencezqA callable hash algorithm constructor (e.g. C{hashlib.sha256}) suitable for use with this key exchange algorithm.r hashProcessorrN) rrrr __doc__r r&__annotations__r'r!rrrr#r#s7  J #, =#M<rr#c8\rSrSrSr\"S5r\"S5rSrg)_IFixedGroupKexAlgorithm-zi An L{_IFixedGroupKexAlgorithm} describes a key exchange algorithm with a fixed prime / generator group. zdAn L{int} giving the prime number used in Diffie-Hellman key exchange, or L{None} if not applicable.zAn L{int} giving the generator number used in Diffie-Hellman key exchange, or L{None} if not applicable. (This is not related to Python generator functions.)rN) rrrr r(r prime generatorr!rrrr+r+-s)  2 E  'Irr+c\rSrSrSrSrg)#_IEllipticCurveExchangeKexAlgorithm?z An L{_IEllipticCurveExchangeKexAlgorithm} describes a key exchange algorithm that uses an elliptic curve exchange between the client and server. rNrrrr r(r!rrrr0r0?srr0c\rSrSrSrSrg)_IGroupExchangeKexAlgorithmFz An L{_IGroupExchangeKexAlgorithm} describes a key exchange algorithm that uses group exchange between the client and server. A prime / generator group should be chosen at run time based on the requested size. See RFC 4419. rNr2rrrr4r4Fsrr4c \rSrSrSrSr\rSrg)_Curve25519SHA256Pz Elliptic Curve Key Exchange using Curve25519 and SHA256. Defined in U{https://datatracker.ietf.org/doc/draft-ietf-curdle-ssh-curves/}. rN rrrr r(r&rr'r!rrrr7r7P JMrr7c \rSrSrSrSr\rSrg)_Curve25519SHA256LibSSH[zF As L{_Curve25519SHA256}, but with a pre-standardized algorithm name. rNr:rrrr=r=[sJMrr=c \rSrSrSrSr\rSrg)_ECDH256ea< Elliptic Curve Key Exchange with SHA-256 as HASH. Defined in RFC 5656. Note that C{ecdh-sha2-nistp256} takes priority over nistp384 or nistp512. This is the same priority from OpenSSH. C{ecdh-sha2-nistp256} is considered preety good cryptography. If you need something better consider using C{curve25519-sha256}. rNr:rrrrArAes JMrrAc \rSrSrSrSr\rSrg)_ECDH384vzH Elliptic Curve Key Exchange with SHA-384 as HASH. Defined in RFC 5656. rN) rrrr r(r&rr'r!rrrrErEvr;rrEc \rSrSrSrSr\rSrg)_ECDH512zH Elliptic Curve Key Exchange with SHA-512 as HASH. Defined in RFC 5656. rN) rrrr r(r&rr'r!rrrrIrIr;rrIc \rSrSrSrSr\rSrg)_DHGroupExchangeSHA256zW Diffie-Hellman Group and Key Exchange with SHA-256 as HASH. Defined in RFC 4419, 4.2. rNr:rrrrMrMr;rrMc \rSrSrSrSr\rSrg)_DHGroupExchangeSHA1zU Diffie-Hellman Group and Key Exchange with SHA-1 as HASH. Defined in RFC 4419, 4.1. rN) rrrr r(r&rr'r!rrrrQrQs JMrrQc4\rSrSrSrSr\r\"S5r Sr Sr g)_DHGroup14SHA1zu Diffie-Hellman key exchange with SHA-1 as HASH and Oakley Group 14 (2048-bit MODP Group). Defined in RFC 4253, 8.2. i32317006071311007300338913926423828248817941241140239112842009751400741706634354222619689417363569347117901737909704191754605873209195028853758986185622153212175412514901774520270235796078236248884246189477587641105928646099411723245426622522193230540919037680524235519125679715870117001058055877651038861847280257976054903569732561526167081339361799541336476559160368317896729073178384589680639671900977202194168647225871031411336429319536193471636533209717077448227988588565369208645296636077250268955505928362751121174096972998068410554359584866583291642136218231078990999448652468262416972035911852507045361090559r?rN) rrrr r(r&rr'r%r-r.r!rrrrUrUs) JM   EIrrU)curve25519-sha256scurve25519-sha256@libssh.orgs$diffie-hellman-group-exchange-sha256s"diffie-hellman-group-exchange-sha1sdiffie-hellman-group14-sha1secdh-sha2-nistp256secdh-sha2-nistp384secdh-sha2-nistp521zdict[bytes, _IKexAlgorithm]_kexAlgorithmsc\U[;a[R"SU<35e[U$)a9 Get a description of a named key exchange algorithm. @param kexAlgorithm: The key exchange algorithm name. @type kexAlgorithm: L{bytes} @return: A description of the key exchange algorithm named by C{kexAlgorithm}. @rtype: L{_IKexAlgorithm} @raises ConchError: if the key exchange algorithm is not found. z$Unsupported key exchange algorithm: )rZr ConchError kexAlgorithms rgetKexr_s1>)!ElEUVWW , ''rc>[R[U55$)z Returns C{True} if C{kexAlgorithm} is an elliptic curve. @param kexAlgorithm: The key exchange algorithm name. @return: C{True} if C{kexAlgorithm} is an elliptic curve, otherwise C{False}. )r0 providedByr_r]s risEllipticCurverbs / 9 9&:N OOrc>[R[U55$)z Returns C{True} if C{kexAlgorithm} has a fixed prime / generator group. @param kexAlgorithm: The key exchange algorithm name. @return: C{True} if C{kexAlgorithm} has a fixed prime / generator group, otherwise C{False}. )r+rar_r]s r isFixedGrouprds $ . .vl/C DDrc0[U5nUR$)z Get the hash algorithm callable to use in key exchange. @param kexAlgorithm: The key exchange algorithm name. @return: A callable hash algorithm constructor (e.g. C{hashlib.sha256}). )r_r'r^kexs rgetHashProcessorrhs  C   rcZ[[U55nURUR4$)z Get the generator and the prime to use in key exchange. @param kexAlgorithm: The key exchange algorithm name. @type kexAlgorithm: L{bytes} @return: A L{tuple} containing L{int} generator and L{int} prime. @rtype: L{tuple} )r+r_r.r-rfs rgetDHGeneratorAndPrimerjs& #6,#7 8C ==#)) ##rc^SSKJn SSKJn SSKJn U"5n[ R5m[T5HnURS5(a5URSS5nURUR5X%5nO)URS5(aUR5nOSnU(aMTRU5 M [TU4S jS 9$) z Get a list of supported key exchange algorithm names in order of preference. @return: A C{list} of supported key exchange algorithm names. r)default_backend)ec) _curveTablesecdhsecdsarYTc">TUR$r)r&)r^ kexAlgorithmss r*getSupportedKeyExchanges..(s l0K0V0Vr)key)cryptography.hazmat.backendsrl)cryptography.hazmat.primitives.asymmetricrmtwisted.conch.ssh.keysrnrZcopylist startswithreplace+elliptic_curve_exchange_algorithm_supportedECDHx25519_supportedpopsorted)rlrmrnbackend keyAlgorithmkeyAlgorithmDsa supportedrps @rgetSupportedKeyExchangesr s=<2G"'')M]+  " "7 + +*227HEOKK ;7I $ $%9 : :002IIy   l +, V rN)r^rrr#)r^rrbool)r^rrr)r^rrztuple[int, int])rz list[bytes])'r( __future__rhashlibrrrrtypingrr zope.interfacer r r twisted.conchr rrr#r+r0r4r7r=rArErIrMrQrUrZr)r_rbrdrhrjrrrrrs #00*<< 8 Y"~$.. 012 012 01  2   012 012 ()* ()* %&'6,-%<%>-C-E+?+A$2$4#:#:#: /+ ($ P E  $r