Crypto CTFs Tricks
Online Hashes DBs
Google it
Magic Autosolvers
****https://github.com/Ciphey/Ciphey****
****https://gchq.github.io/CyberChef/ (Magic module)
Encoders
Most of encoded data can be decoded with these 2 ressources:
Substitution Autosolvers
https://quipqiup.com/ - Very good !
Caesar - ROTx Autosolvers
Atbash Cipher
Similar to BASE64
Check all bases with: https://github.com/mufeedvh/basecrack
Base32 [A-Z2-7=]
NBXWYYLDMFZGCY3PNRQQ====
Base58 [123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz]
2yJiRg5BF9gmsU6AC
Base62 [0-9A-Za-z]
g2AextRZpBKRBzQ9
Base64 [A-Za-z0-9+/=]
aG9sYWNhcmFjb2xh
Base85 --> Like Ascii85
ATOM-128 [/128GhIoPQROSTeUbADfgHijKLM+n0pFWXY456xyzB7=39VaqrstJklmNuZvwcdEC]
MIc3KiXa+Ihz+lrXMIc3KbCC
HAZZ15 [HNO4klm6ij9n+J2hyf0gzA8uvwDEq3X1Q7ZKeFrWcVTts/MRGYbdxSo=ILaUpPBC5]
DmPsv8J7qrlKEoY7
MEGAN35 [3GHIJKLMNOPQRSTUb=cdefghijklmnopWXYZ/12+406789VaqrstuvwxyzABCDEF5]
kLD8iwKsigSalLJ5
ZONG22 [ZKj9n+yf0wDVX1s/5YbdxSo=ILaUpPBCHg8uvNO4klm6iJGhQ7eFrWczAMEq3RTt2]
ayRiIo1gpO+uUc7g
ESAB46 []
3sHcL2NR8WrT7mhR
MEGAN45 []
kLD8igSXm2KZlwrX
TIGO3FX []
7AP9mIzdmltYmIP9mWXX
TRIPO5 []
UE9vSbnBW6psVzxB
FERON74 []
PbGkNudxCzaKBm0x
GILA7 []
D+nkv8C1qIKMErY1
Citrix CTX1 []
MNGIKCAHMOGLKPAKMMGJKNAINPHKLOBLNNHILCBHNOHLLPBK
http://k4.cba.pl/dw/crypo/tools/eng_atom128c.html - 404 Dead: https://web.archive.org/web/20190228181208/http://k4.cba.pl/dw/crypo/tools/eng_hackerize.html
HackerizeXS [╫Λ↻├☰┏]
Morse
UUencoder
XXEncoder
YEncoder
BinHex
ASCII85
Dvorak keyboard
A1Z26
Letters to their numerical value
Affine Cipher Encode
Letter to num (ax+b)%26
(a and b are the keys and x is the letter) and the result back to letter
SMS Code
Multitap replaces a letter by repeated digits defined by the corresponding key code on a mobile phone keypad (This mode is used when writing SMS). For example: 2=A, 22=B, 222=C, 3=D... You can identify this code because you will see several numbers repeated.
You can decode this code in: https://www.dcode.fr/multitap-abc-cipher
Bacon Code
Substitude each letter for 4 As or Bs (or 1s and 0s)
Runes
Compression
Raw Deflate and Raw Inflate (you can find both in Cyberchef) can compress and decompress data without headers.
Easy Crypto
XOR - Autosolver
Bifid
A keywork is needed
Vigenere
A keywork is needed
Strong Crypto
Fernet
2 base64 strings (token and key)
Samir Secret Sharing
A secret is splitted in X parts and to recover it you need Y parts (Y <=X).
http://christian.gen.co/secrets/
OpenSSL brute-force
Tools
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