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BreakIt.md

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Break It

Date: 14, June, 2021

Author: Dhilip Sanjay S

Click Here to go to the TryHackMe room.

Bases

Base 32

  • Answer: easy_base32
  • Steps to Reproduce:
$ echo MVQXG6K7MJQXGZJTGI====== | base32 -d
easy_base32

Double Bases

  • Answer: double_bases
  • Steps to Reproduce:
$ echo TVJYWEtZVE1NVlBXRVlMVE1WWlE9PT09 | base64 -d
MRXXKYTMMVPWEYLTMVZQ====
$ echo TVJYWEtZVE1NVlBXRVlMVE1WWlE9PT09 | base64 -d | base32 -d
double_bases

Multiple Bases

  • Answer: base16_is_hex
  • Steps to Reproduce:
    • Use Cyberchef!
$ echo GM4HOU3VHBAW6OKNJJFW6SS2IZ3VAMTYORFDMUC2G44EQULIJI3WIVRUMNCWI6KGK5XEKZDTN5YU2RT2MR3E45KKI5TXSOJTKZJTC4KRKFDWKZTZOF3TORJTGZTXGNKCOE====== | base32 -d | base58 -d | xxd -r -p | base64 -d
base16_is_hex

Lot of Bases

  • Answer: that_is_a_lot_of_bases
  • Steps to Reproduce:
    • Use cyberchef:
      • From Base32
      • From Base85
      • From Base64
      • From Base58
      • From Base85
      • From Base64
      • From Base64

Insane

  • Answer: defense_the_base
  • Steps to Reproduce:
    • Use cyberchef and dcode.fr
      • From Base32 -> From Base85 -> From Decimal -> From Hex
      • From Base91
      • From Base58 -> From Hex -> From Base64 -> From Decimal -> From Hex

Base and Ciphers

Base 32 + Rot 13

  • Answer: make_13_spin
  • Steps to Reproduce:
$ echo PJXHQ4S7GEZV6ZTDOZQQ==== | base32 -d | rot13
make_13_spin

Vigenere cipher

  • Answer: I luv vigenere cipher
  • Steps to Reproduce:
    • From Base32 -> From Base64
    • Use Vigenere cipher with the key obtained!

Bases and ROTs

  • Answer: decode_and_rot
  • Steps to Reproduce:
    • From Base85 -> ROT47 -> From Base64 -> From Base32 -> ROT13

Insane

  • Answer: you are a real code cracker
  • Steps to Reproduce:
    • Use cyberchef and dcode.fr
      • From Base32 -> From Base85
      • From Base91
      • From Decimal -> From Hex -> From Base64
      • Note down the Key
      • From Base58 -> Vigenere Decode using the key

Base, Cipher and Bit shift

  • Use Hex workshop, Cyberchef

Moderate

  • Answer: shift logic like a boss
  • Steps to Reproduce:
    • Block Shift Left (Logical shift)
    • From Base64 -> ROT13

Hard

  • Answer: shift arithmetic like a boss
  • Steps to Reproduce:
    • Bit Rotate Left (8 Bits) (Arithmetic shift)
    • From Base58 -> ROT13

Insane

  • Answer: God of shifs
  • Steps to Reproduce:
    • Bit Rotate Left (8 Bits) - 3 times
    • From Base64
    • Block Shift Left - 2 times
    • From Base85 -> ROT13