R i:|ddlmZddlmZmZddlmZeej Z dZ dZ dZ e r-ejZ ejZ ejZ dedefdZdedefdZded edefd Zded edefd Zd edefd Zd edefdZd edefdZded edefdZded edefdZded edefdZd edefdZdS)) exceptions)ffilib)ensurepreturncttdtjtt |t ot |tkdtjtj |}|dkS)a Check if ``p`` represents a point on the edwards25519 curve, in canonical form, on the main subgroup, and that the point doesn't have a small order. :param p: a :py:data:`.crypto_core_ed25519_BYTES` long bytes sequence representing a point on the edwards25519 curve :type p: bytes :return: point validity :rtype: bool :raises nacl.exceptions.UnavailableError: If called when using a minimal build of libsodium. Not available in minimal buildraisingz=Point must be a crypto_core_ed25519_BYTES long bytes sequence) rhas_crypto_core_ed25519excUnavailableError isinstancebyteslencrypto_core_ed25519_BYTES TypeErrorr"crypto_core_ed25519_is_valid_point)rrcs Q/srv/django_bis/venv311/lib/python3.11/site-packages/nacl/bindings/crypto_core.pyrr#s ($  1eDQ+D!DG  / 2 2B 7Nrcttdtjtt |t ot |tkddtj tj dt}tj ||}t|dkdtjtj|tddS) a Maps a 32 bytes vector ``r`` to a point. The point is guaranteed to be on the main subgroup. This function directly exposes the Elligator 2 map, uses the high bit to set the sign of the X coordinate, and the resulting point is multiplied by the cofactor. :param r: a :py:data:`.crypto_core_ed25519_BYTES` long bytes sequence representing arbitrary data :type r: bytes :return: a point on the edwards25519 curve main order subgroup, represented as a :py:data:`.crypto_core_ed25519_BYTES` long bytes sequence :rtype: bytes :raises nacl.exceptions.UnavailableError: If called when using a minimal build of libsodium. r r z*Integer r must be a {} long bytes sequencerunsigned char[]rUnexpected library errorN)rrrrrrrrformatrrnewr crypto_core_ed25519_from_uniform RuntimeErrorbuffer)rrrs rr r @s ($  1eDQ+D!D4;; '    !#<==A -a 3 3B 27.8HIIII :a2 3 3AAA 66rqc6ttdtjtt |t oDt |t o/t |tkot |tkddtj tj dt}tj |||}t|dkdtjtj|tddS) aj Add two points on the edwards25519 curve. :param p: a :py:data:`.crypto_core_ed25519_BYTES` long bytes sequence representing a point on the edwards25519 curve :type p: bytes :param q: a :py:data:`.crypto_core_ed25519_BYTES` long bytes sequence representing a point on the edwards25519 curve :type q: bytes :return: a point on the edwards25519 curve represented as a :py:data:`.crypto_core_ed25519_BYTES` long bytes sequence :rtype: bytes :raises nacl.exceptions.UnavailableError: If called when using a minimal build of libsodium. r r +Each point must be a {} long bytes sequencerrrrN)rrrrrrrrrrrrrcrypto_core_ed25519_addr!r"rr#rrs rr&r&e  ($  1e 0 q%  0 FF/ / 0 FF/ /5<< '        !#<==A $Q1 - -B 27.8HIIII :a2 3 3AAA 66rc6ttdtjtt |t oDt |t o/t |tkot |tkddtj tj dt}tj |||}t|dkdtjtj|tddS) ay Subtract a point from another on the edwards25519 curve. :param p: a :py:data:`.crypto_core_ed25519_BYTES` long bytes sequence representing a point on the edwards25519 curve :type p: bytes :param q: a :py:data:`.crypto_core_ed25519_BYTES` long bytes sequence representing a point on the edwards25519 curve :type q: bytes :return: a point on the edwards25519 curve represented as a :py:data:`.crypto_core_ed25519_BYTES` long bytes sequence :rtype: bytes :raises nacl.exceptions.UnavailableError: If called when using a minimal build of libsodium. r r r%rrrrN)rrrrrrrrrrrrrcrypto_core_ed25519_subr!r"r's rr*r*r(rscttdtjtt |t ot |tkddtj tj dt}tj ||}t|dkdtjtj|tddS) at Return the multiplicative inverse of integer ``s`` modulo ``L``, i.e an integer ``i`` such that ``s * i = 1 (mod L)``, where ``L`` is the order of the main subgroup. Raises a ``exc.RuntimeError`` if ``s`` is the integer zero. :param s: a :py:data:`.crypto_core_ed25519_SCALARBYTES` long bytes sequence representing an integer :type s: bytes :return: an integer represented as a :py:data:`.crypto_core_ed25519_SCALARBYTES` long bytes sequence :rtype: bytes :raises nacl.exceptions.UnavailableError: If called when using a minimal build of libsodium. r r *Integer s must be a {} long bytes sequencecrypto_core_ed25519_SCALARBYTESrrrN)rrrrrrrr.rrrrr!crypto_core_ed25519_scalar_invertr!r")r+rrs rr/r/s" ($  1eJQ+J!J4;; -    !#BCCA .q! 4 4B 27.8HIIII :a8 9 9!!! <> -        !#BCCA&q!Q/// :a8 9 9!!! <rJsS #"""""!!!!!!!!""""""$sABB"#,-) = = ? ?&Ic&I&K&K#5577. %D:"7"7%"7"7"7"7J&7u&7&75&7&7&7&7R&7u&7&75&7&7&7&7R$=$=5$=$=$=$=N = =5 = = = =F!=U!=u!=!=!=!=H&=e&=&=%&=&=&=&=R&=e&=&=%&=&=&=&=R&=e&=&=%&=&=&=&=R!=!=5!=!=!=!=!=!=r