]j & d dgZ ddlT ddZddZdS ) padunpad )*pkcs7c 6 |t | |z z
}|dk rt | |z }ng|dk r&t d |dz
z t | z }n;|dk r&t d t d |dz
z z }nt d | |z S )a Apply standard padding.
Args:
data_to_pad (byte string):
The data that needs to be padded.
block_size (integer):
The block boundary to use for padding. The output length is guaranteed
to be a multiple of :data:`block_size`.
style (string):
Padding algorithm. It can be *'pkcs7'* (default), *'iso7816'* or *'x923'*.
Return:
byte string : the original data with the appropriate padding added at the end.
r x923r iso7816 Unknown padding style)lenbchr
ValueError) data_to_pad
block_sizestyle padding_lenpaddings u/builddir/build/BUILD/imunify360-venv-2.6.3/opt/imunify360/venv/lib64/python3.11/site-packages/Crypto/Util/Padding.pyr r ' s S - -j 88K {##K/ & q'';q=)D,=,== ) s))d1gg{1} 550111 c t | }|dk rt d ||z rt d |dv rt | d }|dk s|t || k rt d |dk r/| | d t | |z k rt d
n| | d t d |dz
z k rt d n|d k r|| t d
z
}|dk s|t || k rt d |dk r3| d|z
d t d |dz
z k rt d nt d | d | S )a Remove standard padding.
Args:
padded_data (byte string):
A piece of data with padding that needs to be stripped.
block_size (integer):
The block boundary to use for padding. The input length
must be a multiple of :data:`block_size`.
style (string):
Padding algorithm. It can be *'pkcs7'* (default), *'iso7816'* or *'x923'*.
Return:
byte string : data without padding.
Raises:
ValueError: if the padding is incorrect.
r z$Zero-length input cannot be unpaddedzInput data is not padded)r r r zPadding is incorrect.r Nz PKCS#7 padding is incorrect.z ANSI X.923 padding is incorrect.r
r z ISO 7816-4 padding is incorrect.r )r
r bordminr rfind) padded_datar r pdata_lenr s r r r C s " K IA~~?@@@: 53444 !!!;r?++ q==KJ (B(B B B 455 5 G K<==)4 +<+<[+HHH !?@@@ I K<?+T!WWk!m-DDD !CDDD E ) +"3"3DII">">> q==KJ (B(B B B 455 5 q==[; 8$q'';q=:Q Q Q ?@@ @0111 } } %%r N)r )__all__Crypto.Util.py3compatr r r r <module>r! sP D
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