[Defend the Web] Crypt 3

 

Oh. The hyphens, periods, slashes, and spaces. What will they mean? Not at first glance, but from my little experiences, I recalled that there are morse code, international maritime signal flags, telephone keypads, encodings, etc. in some CTFs. So... maybe this ciphertext can be morse code.

The morse code has two different signal durations, called dots and dashes or dits and dash (they will be colon and hyphen). Space will be the divider, and slash means space. I made a morse code translator in python by using a morse code dictionary. But I can find untranslated or mistranslated text.

Expected Text       : .... .. --..-- => Hi,
Output from Program : .... .. -..-   => HIX

Like this, the problem is the characters that neither alphabets nor numbers. Now I found the problem, and the solution is just adding some special characters in the morse code dictionary. Finally, I fixed some errors and translation is done.

 

SPOILER ALERT. FLAG INCLUDED

HI, THANKS TO SAMUEL MORSE THE TRANSMISSION OF TELEGRAPHIC INFORMATION WAS STANDARDIZED. HE USED DOTS AND DASHES TO CREATE A STANDARD WAY OF COMMUNICATION, HE HAS HELPED YOU TODAY TO GET THE PASS: THANKYOUSIR