zj+ UddlmZmZmZmZddlmZddlm Z m Z ddl m Z e jZeed<e j"Zeed<e j&Zeed<e j*Zeed<e j.Zeed <e j2Zeed <e j6Zeed <e j:Zeed <e j>Z eed <de!fdZ"GddZ#de#de!de!fdZ$defde#de!dee!dede!f dZ%de#de!de!ddfdZ& dde#de!dee!dee!effdZ'de#ddfdZ(y) )OptionalTupleUnioncast) exceptions)ffilib)ensure,crypto_secretstream_xchacha20poly1305_ABYTES1crypto_secretstream_xchacha20poly1305_HEADERBYTES.crypto_secretstream_xchacha20poly1305_KEYBYTES6crypto_secretstream_xchacha20poly1305_MESSAGEBYTES_MAX0crypto_secretstream_xchacha20poly1305_STATEBYTES1crypto_secretstream_xchacha20poly1305_TAG_MESSAGE.crypto_secretstream_xchacha20poly1305_TAG_PUSH/crypto_secretstream_xchacha20poly1305_TAG_REKEY/crypto_secretstream_xchacha20poly1305_TAG_FINALreturnctjdt}tj|tj |ddS)zd Generate a key for use with :func:`.crypto_secretstream_xchacha20poly1305_init_push`. unsigned char[]N)rnewr r ,crypto_secretstream_xchacha20poly1305_keygenbuffer)keybufs b/var/www/api.ozpay.ru/ozpay/venv/lib/python3.12/site-packages/nacl/bindings/crypto_secretstream.pyrr4s< WW6F44V< ::f a  c eZdZdZgdZddZy)+crypto_secretstream_xchacha20poly1305_statezN An object wrapping the crypto_secretstream_xchacha20poly1305 state. )statebufrawbuftagbufNcttttf}t j dt |_d|_d|_ y)z Initialize a clean state object.rN) rbytes bytearray memoryviewrrrrr r!)self ByteStrings r__init__z4crypto_secretstream_xchacha20poly1305_state.__init__Js95)Z78 $'GG  <%  -1 ,0 r)rN)__name__ __module__ __qualname____doc__ __slots__r(rrrrBs 1I 1rrstatekeyctt|tdtjtt|t dtjtt |tk(dtjtjdt}tj|j||}t|dk(dtjtj |ddS) a\ Initialize a crypto_secretstream_xchacha20poly1305 encryption buffer. :param state: a secretstream state object :type state: crypto_secretstream_xchacha20poly1305_state :param key: must be :data:`.crypto_secretstream_xchacha20poly1305_KEYBYTES` long :type key: bytes :return: header :rtype: bytes BState must be a crypto_secretstream_xchacha20poly1305_state objectraisingKey must be a bytes sequenceInvalid key lengthzunsigned char []rUnexpected failureN)r isinstancerexc TypeErrorr#lenr ValueErrorrrr r /crypto_secretstream_xchacha20poly1305_init_pushr RuntimeErrorr)r/r0 headerbufrcs rr=r=Vs 5EFL   3&    CBB 9I < <  3 B 27(#2B2BC ::i  ##rNmadtagc Vtt|tdtjtt|t dtjtt |tkdtjt|duxst|t dtjt |tz}|jt |j|krtjd||_ |tj}d}n t |}tj|j |jtj|t ||||}t|dk(d tj"tj$|j|ddS) a Add an encrypted message to the secret stream. :param state: a secretstream state object :type state: crypto_secretstream_xchacha20poly1305_state :param m: the message to encrypt, the maximum length of an individual message is :data:`.crypto_secretstream_xchacha20poly1305_MESSAGEBYTES_MAX`. :type m: bytes :param ad: additional data to include in the authentication tag :type ad: bytes or None :param tag: the message tag, usually :data:`.crypto_secretstream_xchacha20poly1305_TAG_MESSAGE` or :data:`.crypto_secretstream_xchacha20poly1305_TAG_FINAL`. :type tag: int :return: ciphertext :rtype: bytes r2r3zMessage is not byteszMessage is too longN%Additional data must be bytes or Nonerrr7)r r8rr9r:r#r;rr<r r rrNULLr *crypto_secretstream_xchacha20poly1305_pushrr>r)r/rArBrCclenadlenr@s rrGrGsF2 5EFL   :a !7O  AHH   d +jU+/  q6@ @D ||s5<<047ww0$7  z XXB 7 7     A    B 27(#2B2BC ::ellD )! ,,rheaderc|tt|tdtjtt|t dtjtt |tk(dtjtt|t dtjtt |tk(dtj|jtjd|_ tj|j||}t|d k(d tj y) a Initialize a crypto_secretstream_xchacha20poly1305 decryption buffer. :param state: a secretstream state object :type state: crypto_secretstream_xchacha20poly1305_state :param header: must be :data:`.crypto_secretstream_xchacha20poly1305_HEADERBYTES` long :type header: bytes :param key: must be :data:`.crypto_secretstream_xchacha20poly1305_KEYBYTES` long :type key: bytes r2r3zHeader must be a bytes sequencezInvalid header lengthr5r6Nzunsigned char *rr7)r r8rr9r:r#r;r r<r r!rrr /crypto_secretstream_xchacha20poly1305_init_pullrr>)r/rJr0r@s rrLrLs$ 5EFL   65!)    F HH  3&    CBB  ||ww01 < <  B 27(#2B2BCrcc ltt|tdtjt|j dudtj tt|tdtjtt|tk\dtj tt|ttzkdtj t|duxst|tdtjt|tz }|jt|j|krtjd ||_ |tj}d }n t|}tj |j"|jtj|j |t|||}t|d k(d tj$tj&|j|ddt)t+t|j d fS) aM Read a decrypted message from the secret stream. :param state: a secretstream state object :type state: crypto_secretstream_xchacha20poly1305_state :param c: the ciphertext to decrypt, the maximum length of an individual ciphertext is :data:`.crypto_secretstream_xchacha20poly1305_MESSAGEBYTES_MAX` + :data:`.crypto_secretstream_xchacha20poly1305_ABYTES`. :type c: bytes :param ad: additional data to include in the authentication tag :type ad: bytes or None :return: (message, tag) :rtype: (bytes, int) r2r3NzOState must be initialized using crypto_secretstream_xchacha20poly1305_init_pullzCiphertext is not byteszCiphertext is too shortzCiphertext is too longrErrr7)r r8rr9r:r!r<r#r;r rr rrrFr *crypto_secretstream_xchacha20poly1305_pullrr>rintr)r/rMrBmlenrIr@s rrOrOs* 5EFL    D  >  1e!    A>>!   A B: ; !  d +jU+/  q6@ @D ||s5<<047ww0$7  z XXB 7 7      A   B 27(#2B2BC 5<<&q) D %a () rctt|tdtjt j |jy)a Explicitly change the encryption key in the stream. Normally the stream is re-keyed as needed or an explicit ``tag`` of :data:`.crypto_secretstream_xchacha20poly1305_TAG_REKEY` is added to a message to ensure forward secrecy, but this method can be used instead if the re-keying is controlled without adding the tag. :param state: a secretstream state object :type state: crypto_secretstream_xchacha20poly1305_state r2r3N)r r8rr9r:r +crypto_secretstream_xchacha20poly1305_rekeyr)r/s rrSrSRs5 5EFL  33ENNCr)N))typingrrrrnaclrr9 nacl._sodiumrr nacl.exceptionsr ,crypto_secretstream_xchacha20poly1305_abytesr rP__annotations__1crypto_secretstream_xchacha20poly1305_headerbytesr .crypto_secretstream_xchacha20poly1305_keybytesr 6crypto_secretstream_xchacha20poly1305_messagebytes_maxr0crypto_secretstream_xchacha20poly1305_statebytesr1crypto_secretstream_xchacha20poly1305_tag_messager.crypto_secretstream_xchacha20poly1305_tag_pushr/crypto_secretstream_xchacha20poly1305_tag_rekeyr/crypto_secretstream_xchacha20poly1305_tag_finalrr#rrr=rGrLrOrSr.rrrbs0/"!"5C446-c:C99;237C668/?C>>@79C88:1# :C99;237C668/8C77908C7790 !e !11()$ 6)$=B)$ )$^@ @- 6@- @- @- @-  @-F2D 62D 2D 2D 2DpU 6U U U 5#: UpD 6D Dr