WeChall - Training - Crypto - Transposition I

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Challenge

It seems that the simple substitution ciphers are too easy for you. From my own experience I can tell that transposition ciphers are more difficult to attack. However, in this training challenge you should have not much problems to reveal the plaintext.

oWdnreuf.lY uoc nar ae dht eemssga eaw yebttrew eh nht eelttre sra enic roertco drre . Ihtni koy uowlu dilekt oes eoyrup sawsro don:we raphbmnmld.s

A transposition cipher where adjacent character pairs are swapped. The message includes: "Wonderful. You can read the message way better when the letters are in correct order. I think you would like to see your password now: XXXXXXXX"

Solution

Swap each adjacent pair of characters:

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ct = "oWdnreuf.lY uoc nar ae dht eemssga eaw yebttrew eh nht eelttre sr..."
chars = list(ct)
for i in range(0, len(chars) - 1, 2):
    chars[i], chars[i+1] = chars[i+1], chars[i]
result = ''.join(chars)
# result: "Wonderful. You can read the message way better when the letters are in correct order..."

Extract the password after "password now: ".

earhpmbmndls