WEEKDAY CHALLENGE: Encoding Hex · The Black Widow Community

Bree Kagwe

2d • ⚔️ Challenges

WEEKDAY CHALLENGE: Encoding Hex

⚠️!!SPOILERS IN COMMENTS!!⚠️

🔑 KEY RULE: Upload your answer in PDF only, raw spoilers will be deleted.

PS: Don't forget to leave comments in your code.

Challenge starts below this line of text.

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When we encrypt something the resulting ciphertext commonly has bytes which are not printable ASCII characters. If we want to share our encrypted data, it's common to encode it into something more user-friendly and portable across different systems.

Hexadecimal can be used in such a way to represent ASCII strings. First each letter is converted to an ordinal number according to the ASCII table. Then the decimal numbers are converted to base-16 numbers, otherwise known as hexadecimal. The numbers can be combined together, into one long hex string.

Included below is a flag encoded as a hex string. Decode this back into bytes to get the flag.

63727970746f7b596f755f77696c6c5f62655f776f726b696e675f776974685f6865785f737472696e67735f615f6c6f747d

HERE'S YOUR TERMINAL

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Goodluck.

~ aScriptKiddie

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WEEKDAY CHALLENGE: Encoding Hex