TJCTF2020 - Typewriter

Points: 30

Written by jpes707

Oh no! I thought I typed down the correct flag for this problem on my typewriter, but it came out all jumbled on the paper. Someone must have switched the inner hammers around! According to the paper, the flag is zpezy{ktr_gkqfut_hxkhst_tyukokkgotyt_hoftqhhst_ykxoz_qxilrtxiyf}.

Hint: a becomes q, b becomes w, c becomes e, f becomes y, j becomes p, t becomes z, and z becomes m. Do you see the pattern?

flag = "zpezy\{ktr_gkqfut_hxkhst_tyukokkgotyt_hoftqhhst_ykxoz_qxilrtxiyf}"

layout = {
'a': 'q',
'b': 'w',
'c': 'e',
'd': 'r',
'e': 't',
'f': 'y',
'g': 'u',
'h': 'i',
'i': 'o',
'j': 'p',
'k': 'a',
'l': 's',
'm': 'd',
'n': 'f',
'o': 'g',
'p': 'h',
'q': 'j',
'r': 'k',
's': 'l',
't': 'z',
'u': 'x',
'v': 'c',
'w': 'v',
'x': 'b',
'y': 'n',
'z': 'm',
'_': '_',
'{': '{',
'}': '}'
}

result = ""

for c in flag:
    for name, age in layout.items():
        if age == c:
            result += name

print(result)

╰─ python typewriter.py
tjctf{red_orange_purple_efgrirroiefe_pineapple_fruit_auhsdeuhfn}