

import argparse
import struct
import unittest





class  __lowerCAmelCase     :




  def __init__(				self							,   lowerCAmelCase					)  -> None:
        '''simple docstring'''






        _lowercase	       =data

        # Initialize hash values
        _lowercase	       =[
            0x6_a_0_9_e_6_6_7,
            0xb_b_6_7_a_e_8_5,
            0x3_c_6_e_f_3_7_2,
            0xa_5_4_f_f_5_3_a,
            0x5_1_0_e_5_2_7_f,
            0x9_b_0_5_6_8_8_c,
            0x1_f_8_3_d_9_a_b,
            0x5_b_e_0_c_d_1_9,
        ]

        # Initialize round constants
        _lowercase	       =[
            0x4_2_8_a_2_f_9_8,
            0x7_1_3_7_4_4_9_1,
            0xb_5_c_0_f_b_c_f,
            0xe_9_b_5_d_b_a_5,
            0x3_9_5_6_c_2_5_b,
            0x5_9_f_1_1_1_f_1,
            0x9_2_3_f_8_2_a_4,
            0xa_b_1_c_5_e_d_5,
            0xd_8_0_7_a_a_9_8,
            0x1_2_8_3_5_b_0_1,
            0x2_4_3_1_8_5_b_e,
            0x5_5_0_c_7_d_c_3,
            0x7_2_b_e_5_d_7_4,
            0x8_0_d_e_b_1_f_e,
            0x9_b_d_c_0_6_a_7,
            0xc_1_9_b_f_1_7_4,
            0xe_4_9_b_6_9_c_1,
            0xe_f_b_e_4_7_8_6,
            0x0_f_c_1_9_d_c_6,
            0x2_4_0_c_a_1_c_c,
            0x2_d_e_9_2_c_6_f,
            0x4_a_7_4_8_4_a_a,
            0x5_c_b_0_a_9_d_c,
            0x7_6_f_9_8_8_d_a,
            0x9_8_3_e_5_1_5_2,
            0xa_8_3_1_c_6_6_d,
            0xb_0_0_3_2_7_c_8,
            0xb_f_5_9_7_f_c_7,
            0xc_6_e_0_0_b_f_3,
            0xd_5_a_7_9_1_4_7,
            0x0_6_c_a_6_3_5_1,
            0x1_4_2_9_2_9_6_7,
            0x2_7_b_7_0_a_8_5,
            0x2_e_1_b_2_1_3_8,
            0x4_d_2_c_6_d_f_c,
            0x5_3_3_8_0_d_1_3,
            0x6_5_0_a_7_3_5_4,
            0x7_6_6_a_0_a_b_b,
            0x8_1_c_2_c_9_2_e,
            0x9_2_7_2_2_c_8_5,
            0xa_2_b_f_e_8_a_1,
            0xa_8_1_a_6_6_4_b,
            0xc_2_4_b_8_b_7_0,
            0xc_7_6_c_5_1_a_3,
            0xd_1_9_2_e_8_1_9,
            0xd_6_9_9_0_6_2_4,
            0xf_4_0_e_3_5_8_5,
            0x1_0_6_a_a_0_7_0,
            0x1_9_a_4_c_1_1_6,
            0x1_e_3_7_6_c_0_8,
            0x2_7_4_8_7_7_4_c,
            0x3_4_b_0_b_c_b_5,
            0x3_9_1_c_0_c_b_3,
            0x4_e_d_8_a_a_4_a,
            0x5_b_9_c_c_a_4_f,
            0x6_8_2_e_6_f_f_3,
            0x7_4_8_f_8_2_e_e,
            0x7_8_a_5_6_3_6_f,
            0x8_4_c_8_7_8_1_4,
            0x8_c_c_7_0_2_0_8,
            0x9_0_b_e_f_f_f_a,
            0xa_4_5_0_6_c_e_b,
            0xb_e_f_9_a_3_f_7,
            0xc_6_7_1_7_8_f_2,
        ]

        _lowercase	       =self.preprocessing(self.data					)
        self.final_hash()




  @staticmethod
  def   A__     (				lowerCAmelCase					)  -> bytes:
        '''simple docstring'''






        _lowercase	       =B'\x80' + (B'\x00' * (63 - (len(lowerCAmelCase					) + 8) % 64))
        _lowercase	       =struct.pack('>Q'							,   (len(lowerCAmelCase					) * 8)					)
        return data + padding + big_endian_integer




  def   A__     (				self					)  -> None:
        '''simple docstring'''






        _lowercase	       =[
            self.preprocessed_data[x : x + 64]
            for x in range(0							,   len(self.preprocessed_data					)							,   64					)
        ]

        for block in self.blocks:
              # Convert the given block into a list of 4 byte integers
              _lowercase	       =list(struct.unpack('>16L'							,   lowerCAmelCase					)					)
              # add 48 0-ed integers
              words += [0] * 48

              _lowercase       ,       _lowercase       ,       _lowercase       ,       _lowercase       ,       _lowercase       ,       _lowercase       ,       _lowercase       ,       _lowercase	       =self.hashes

              for index in range(0							,   64					):
                    if index > 15:
                          # modify the zero-ed indexes at the end of the array
                          _lowercase	       =(
                              self.ror(words[index - 15]							,   7					)
                              ^ self.ror(words[index - 15]							,   18					)
                              ^ (words[index - 15] >> 3)
                          )
                          _lowercase	       =(
                              self.ror(words[index - 2]							,   17					)
                              ^ self.ror(words[index - 2]							,   19					)
                              ^ (words[index - 2] >> 10)
                          )

                          _lowercase	       =(
                              words[index - 16] + sa + words[index - 7] + sa
                          ) % 0x1_0_0_0_0_0_0_0_0

                    # Compression
                    _lowercase	       =self.ror(lowerCAmelCase							,   6					) ^ self.ror(lowerCAmelCase							,   11					) ^ self.ror(lowerCAmelCase							,   25					)
                    _lowercase	       =(e & f) ^ ((~e & 0xf_f_f_f_f_f_f_f) & g)
                    _lowercase	       =(
                        h + sa + ch + self.round_constants[index] + words[index]
                    ) % 0x1_0_0_0_0_0_0_0_0
                    _lowercase	       =self.ror(lowerCAmelCase							,   2					) ^ self.ror(lowerCAmelCase							,   13					) ^ self.ror(lowerCAmelCase							,   22					)
                    _lowercase	       =(a & b) ^ (a & c) ^ (b & c)
                    _lowercase	       =(sa + maj) % 0x1_0_0_0_0_0_0_0_0

                    _lowercase       ,       _lowercase       ,       _lowercase       ,       _lowercase       ,       _lowercase       ,       _lowercase       ,       _lowercase       ,       _lowercase	       =(
                        g,
                        f,
                        e,
                        ((d + tempa) % 0x1_0_0_0_0_0_0_0_0),
                        c,
                        b,
                        a,
                        ((tempa + tempa) % 0x1_0_0_0_0_0_0_0_0),
                    )

              _lowercase	       =[a, b, c, d, e, f, g, h]

              # Modify final values
              _lowercase	       =[
                  ((element + mutated_hash_values[index]) % 0x1_0_0_0_0_0_0_0_0)
                  for index, element in enumerate(self.hashes					)
              ]

        _lowercase	       =''.join([hex(lowerCAmelCase					)[2:].zfill(8					) for value in self.hashes]					)




  def   A__     (				self							,   lowerCAmelCase							,   lowerCAmelCase					)  -> int:
        '''simple docstring'''






        return 0xf_f_f_f_f_f_f_f & (value << (32 - rotations)) | (value >> rotations)





class  __lowerCAmelCase     (					unittest.TestCase							):




  def   A__     (				self					)  -> None:
        '''simple docstring'''






        import hashlib

        _lowercase	       =bytes('Test String'							,   'utf-8'					)
        self.assertEqual(SHAaaa(lowerCAmelCase					).hash							,   hashlib.shaaaa(lowerCAmelCase					).hexdigest()					)
def      a      (			)    ->      None:





      """simple docstring"""



      import doctest

      doctest.testmod()

      _lowercase	       =argparse.ArgumentParser()
      parser.add_argument(
          '-s'      ,   '--string'      ,   dest='input_string'      ,   default='Hello World!! Welcome to Cryptography'      ,   help='Hash the string'      ,   )
      parser.add_argument(
          '-f'      ,   '--file'      ,   dest='input_file'      ,   help='Hash contents of a file'     )

      _lowercase	       =parser.parse_args()

      _lowercase	       =args.input_string

      # hash input should be a bytestring
      if args.input_file:
            with open(args.input_file      ,   'rb'     ) as f:
                  _lowercase	       =f.read()
      else:
            _lowercase	       =bytes(A__      ,   'utf-8'     )

      print(SHAaaa(A__     ).hash     )


if __name__ == "__main__":
  main()





import numpy as np
from cva import COLOR_BGR2GRAY, CV_8UC3, cvtColor, filteraD, imread, imshow, waitKey
def      a      (			A__	:   int      ,   A__	:   int      ,   A__	:   int      ,   A__	:   int      ,   A__	:   int      ,   A__	:   int     )    ->      np.ndarray:





      """simple docstring"""



      if (ksize % 2) == 0:
            _lowercase	       =ksize + 1
      _lowercase	       =np.zeros((ksize, ksize)      ,   dtype=np.floataa     )

      # each value
      for y in range(A__     ):
            for x in range(A__     ):
                  # distance from center
                  _lowercase	       =x - ksize // 2
                  _lowercase	       =y - ksize // 2

                  # degree to radiant
                  _lowercase	       =theta / 180 * np.pi
                  _lowercase	       =np.cos(_theta     )
                  _lowercase	       =np.sin(_theta     )

                  # get kernel x
                  _lowercase	       =cos_theta * px + sin_theta * py

                  # get kernel y
                  _lowercase	       =-sin_theta * px + cos_theta * py

                  # fill kernel
                  _lowercase	       =np.exp(
                      -(_x**2 + gamma**2 * _y**2) / (2 * sigma**2)     ) * np.cos(2 * np.pi * _x / lambd + psi     )

      return gabor


if __name__ == "__main__":
  import doctest

  doctest.testmod()
  # read original image
  lowercase_									=   imread('../image_data/lena.jpg')
  # turn image in gray scale value
  lowercase_									=   cvtColor(img, COLOR_BGR2GRAY)

  # Apply multiple Kernel to detect edges
  lowercase_									=   np.zeros(gray.shape[:2])
  for theta in [0, 3_0, 6_0, 9_0, 1_2_0, 1_5_0]:
    lowercase_									=   gabor_filter_kernel(1_0, 8, theta, 1_0, 0, 0)
    out += filteraD(gray, CV_8UC3, kernel_aa)
  lowercase_									=   out / out.max() * 2_5_5
  lowercase_									=   out.astype(np.uinta)

  imshow('Original', gray)
  imshow('Gabor filter with 20x20 mask and 6 directions', out)

  waitKey(0)


