# GynvaelEN mission 012

# curl -s http://www.computer-engineering.org/ps2keyboard/scancodes2.html | tr [:upper:] [:lower:] > scan_codes.html
# for i in 12 1b 1c 23 24 29 2c 2d 31 32 35 41 42 43 44 49 4d 52 58 59; do result=`cat scan_codes.html | grep '<tt>' | grep -m1 -B1 "<tt>$i</tt>" | sed 's/<[^>]*>//g' | tr -d ' '| tr -d '\r'`;  key=`echo "$result" | tail -n1`; value=`echo "$result" | head -n1`; echo "0x$key: '$value',"; done
0x12: 'lshft',
0x1b: 's',
0x1c: 'a',
0x23: 'd',
0x24: 'e',
0x29: 'space',
0x2c: 't',
0x2d: 'r',
0x31: 'n',
0x32: 'b',
0x35: 'y',
0x41: ',',
0x42: 'k',
0x43: 'i',
0x44: 'o',
0x49: '.',
0x4d: 'p',
0x52: ''',
0x58: 'caps',
0x59: 'rshft'

# cat keylogger.py
'''
0x58 0xf0 0x58
0x1b 0xf0 0x1b
0x58 0xf0 0x58
0x44 0xf0 0x44
0x2d 0xf0 0x2d
0x2d 0xf0 0x2d
0x35 0xf0 0x35
0x41 0xf0 0x41
0x29 0xf0 0x29
0x59 0x43 0xf0 0x43 0xf0 0x59
0x29 0xf0 0x29
0x23 0xf0 0x23
0x44 0xf0 0x44
0x31 0xf0 0x31
0x52 0xf0 0x52
0x2c 0xf0 0x2c
0x29 0xf0 0x29
0x1b 0xf0 0x1b
0x4d 0xf0 0x4d
0x24 0xf0 0x24
0x1c 0xf0 0x1c
0x42 0xf0 0x42
0x29 0xf0 0x29
0x12 0x42 0xf0 0x42 0xf0 0x12
0x24 0xf0 0x24
0x35 0xf0 0x35
0x32 0xf0 0x32
0x44 0xf0 0x44
0x1c 0xf0 0x1c
0x2d 0xf0 0x2d
0x23 0xf0 0x23
0x49 0xf0 0x49
'''

# Scan Codes
sc = {
   0x12: 'lshft',
   0x1b: 's',
   0x1c: 'a',
   0x23: 'd',
   0x24: 'e',
   0x29: ' ',
   0x2c: 't',
   0x2d: 'r',
   0x31: 'n',
   0x32: 'b',
   0x35: 'y',
   0x41: ',',
   0x42: 'k',
   0x43: 'i',
   0x44: 'o',
   0x49: '.',
   0x4d: 'p',
   0x52: '\'',
   0x58: 'caps',
   0x59: 'rshft'
}

data = [0x58, 0xf0, 0x58, 0x1b, 0xf0, 0x1b, 0x58, 0xf0, 0x58, 0x44, 0xf0, 0x44, 0x2d, 0xf0, 0x2d, 0x2d, 0xf0, 0x2d, 0x35, 0xf0, 0x35, 0x41, 0xf0, 0x41, 0x29, 0xf0, 0x29, 0x59, 0x43, 0xf0, 0x43, 0xf0, 0x59, 0x29, 0xf0, 0x29, 0x23, 0xf0, 0x23, 0x44, 0xf0, 0x44, 0x31, 0xf0, 0x31, 0x52, 0xf0, 0x52, 0x2c, 0xf0, 0x2c, 0x29, 0xf0, 0x29, 0x1b, 0xf0, 0x1b, 0x4d, 0xf0, 0x4d, 0x24, 0xf0, 0x24, 0x1c, 0xf0, 0x1c, 0x42, 0xf0, 0x42, 0x29, 0xf0, 0x29, 0x12, 0x42, 0xf0, 0x42, 0xf0, 0x12, 0x24, 0xf0, 0x24, 0x35, 0xf0, 0x35, 0x32, 0xf0, 0x32, 0x44, 0xf0, 0x44, 0x1c, 0xf0, 0x1c, 0x2d, 0xf0, 0x2d, 0x23, 0xf0, 0x23, 0x49, 0xf0, 0x49]

may = False
shift = False
stack = []

decoded = ''

for i in data:
   #print i
   if i != 240:
      letter = sc[i]
      #print letter, stack
      if letter in stack:
         stack.remove(letter)
      else:
         stack.append(letter)
         if letter == 'caps': may = not may
         elif 'shft' in letter: shift = True
         else:
            if may:
               decoded += letter.upper()
            elif shift:
               decoded += letter.upper()
               shift = False
            else:
               decoded += letter

print decoded
# python keylogger.py
Sorry, I don't speak Keyboard.

Source

https://www.youtube.com/watch?v=4Xo_FAx6P0A (1:51:20)

Done in collaboration

https://atorralba.github.io/