]j d dl mZ d dlmZmZmZmZmZmZm Z d dl
m Z d dl m
Z
d Zd Zd Zd Z G d d
e Zd Zdd
Zd S ) )bchr) VoidPointer SmartPointercreate_string_bufferget_raw_bufferc_size_t c_uint8_ptrc_ubyte)
long_to_bytes)_raw_keccak_libc | ddz k r| dk sJ | dk rdn| dz dz }t | t | z S )z2Left encode function as defined in NIST SP 800-185 r )
bit_lengthr r xnums w/builddir/build/BUILD/imunify360-venv-2.6.3/opt/imunify360/venv/lib64/python3.11/site-packages/Crypto/Hash/cSHAKE128.py _left_encoder + s\
dOOQ & Avv!!ALLNNQ .14C 99}Q'' '' c | ddz k r| dk sJ | dk rdn| dz dz }t | t | z S )z3Right encode function as defined in NIST SP 800-185r r r r r )r r r r s r
_right_encoder 6 s\
dOOQ & Avv!!ALLNNQ .14C d3ii ''r c z t | dz }|ddz k rt d t | | z S )z4Encode string function as defined in NIST SP 800-185r r r z$String too large to encode in cSHAKE)len
ValueErrorr )r bitlens r _encode_strr A sD VVaZF
!t) ?@@@ ! ##r c f t | | z }|t | |z z
|z }|d|z z S )z2Zero pad byte string as defined in NIST SP 800-185 )r r )r lengthto_padnpads r _bytepadr% K sA &
!
!A
%F
S[[6) )V 3D GdN ""r c $ e Zd ZdZd Zd Zd ZdS )
cSHAKE_XOFz]A cSHAKE hash object.
Do not instantiate directly.
Use the :func:`new` function.
c 8 t }|s|r=t | t | z }t |d|z
dz }d| _ n d }d| _ t j | t |dz t d }|rt d|z t | t j | _
d| _ |r| | |r| | d S d S )Ni@ r z#Error %d while instantiating cSHAKEF)r r r% _paddingr keccak_init
address_ofr r
r r getkeccak_destroy_state
_is_squeezingupdate) selfdatacustomcapacityfunctionstate prefix_unpadprefixresults r __init__zcSHAKE_XOF.__init__] s/
!X !&x00;v3F3FFL lTH_q,@AAF DMMF DM ,U-=-=-?-?-5hk-B-B-4R[[: : ' B % & ' '
'"599;;#2#AC C " KK KK r c | j rt d t j | j t
| t t | }|rt d|| j
fz | S )zContinue hashing of a message by consuming the next chunk of data.
Args:
data (byte string/byte array/memoryview): The next chunk of the message being hashed.
z/You cannot call 'update' after the first 'read'z Error %d while updating %s state) r2 TypeErrorr
keccak_absorbr1 r/ r r r r name)r4 r5 r< s r r3 zcSHAKE_XOF.updatex s O MNN N .t{/@/@/:4/@/@/7D /B/BD D 4 ? & 2 3 4 4
4 r c d| _ t | }t j | j |t
| t | j }|rt d|| j
fz t | S )ah
Compute the next piece of XOF output.
.. note::
You cannot use :meth:`update` anymore after the first call to
:meth:`read`.
Args:
length (integer): the amount of bytes this method must return
:return: the next piece of XOF output (of the given length)
:rtype: byte string
Tz!Error %d while extracting from %s) r2 r r keccak_squeezer1 r/ r r
r, r rA r )r4 r" bfrr< s r readzcSHAKE_XOF.read s ""6** / 0A0A03080@0@07
0F0FH H 4 @ & 2 3 4 4
4 c"""r N)__name__
__module__ __qualname____doc__r= r3 rE r r r' r' W sK
6 $# # # # #r r' c & t | |d| S )N r' )r5 r6 r8 s r _newrN s dFC 2 22r Nc & t | |dd S )az Return a fresh instance of a cSHAKE128 object.
Args:
data (bytes/bytearray/memoryview):
Optional.
The very first chunk of the message to hash.
It is equivalent to an early call to :meth:`update`.
custom (bytes):
Optional.
A customization bytestring (``S`` in SP 800-185).
:Return: A :class:`cSHAKE_XOF` object
rL r rM )r5 r6 s r newrP s dFC - --r )NN)Crypto.Util.py3compatr Crypto.Util._raw_apir r r r r r r
Crypto.Util.numberr Crypto.Hash.keccakr r r r r% objectr' rN rP rJ r r <module>rV s5 > ' & & & & &8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8
- , , , , , . . . . . .( ( (( ( ($ $ $ # # #L# L# L# L# L# L# L# L#^3 3 3
. . . . . .r