Last active
April 20, 2016 20:54
-
-
Save alan-mushi/19f77d1b5f6537c6af7611599e199d6f to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
data = "010001110101111001100011011011100100100100111001010111100100011101000111001110010100011100111001010001110011100101000111001110010101111001100011011011100100100101101110010010010011100100110101010111100110001100111001001101010110111001001001011011100100100101000111010111100011100100110101011011100100100101011110011000110100011101011110001110010011010101011110011000110101111001100011010111100110001101000111010111100101111001100011011011100100100101000111010111100011100100110101010001110101111001101110010010010101111001100011010111100110001101101110010010010101111001100011010111100110001100111001001101010100011101011110010111100110001101011110011000110101111001100011010001110101111001000111010111100101111001100011011011100100100101101110010010010101111001100011" | |
bits = list(map(lambda x: x == "1", data)) | |
res = 0 | |
for idx in range(0, len(bits), 8): | |
b = bits[idx:idx+8] | |
stage1 = [ | |
b[0], not b[2], | |
not b[2], not b[1], | |
b[0], b[1], | |
b[6], b[5], | |
not b[1], not b[7] | |
] | |
stage1_out = [ | |
stage1[0] & stage1[1], | |
stage1[2] & stage1[3], | |
stage1[4] & stage1[5], | |
stage1[6] ^ stage1[7], | |
stage1[8] ^ stage1[9] | |
] | |
stage2 = [ | |
stage1_out[0], not b[3], | |
stage1_out[1], not b[3], | |
stage1_out[2], not b[3], | |
not b[5], b[2], | |
b[2], stage1_out[4] | |
] | |
stage2_out = [ | |
stage2[0] & stage2[1], | |
stage2[2] & stage2[3], | |
stage2[4] & stage2[5], | |
stage2[6] & stage2[7], | |
stage2[8] & stage2[9] | |
] | |
stage3 = [ | |
stage2_out[0], not b[4], | |
stage2_out[1], not b[4], | |
stage2_out[2], not b[4], | |
stage2_out[3], stage1_out[3] | |
] | |
stage3_out = [ | |
stage3[0] & stage3[1], | |
stage3[2] & stage3[3], | |
stage3[4] & stage3[5], | |
stage3[6] & stage3[7] | |
] | |
stage4_out = [ | |
stage3_out[0] | stage3_out[1], | |
stage3_out[2] | stage3_out[3] | |
] | |
stage5_out = stage4_out[1] | stage2_out[4] | |
out = stage4_out[0] | stage5_out | |
res = (res << 1) | out | |
print("res = " + bytes.fromhex(hex(res)[2:]).decode('ascii') + " hex = " + hex(res)) |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment