hacktricks/cryptography/crypto-ctfs-tricks.md

Trikovi za kriptografske CTF-ove

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Online baze heševa

• Pretražite na Google-u
• http://hashtoolkit.com/reverse-hash?hash=4d186321c1a7f0f354b297e8914ab240
• https://www.onlinehashcrack.com/
• https://crackstation.net/
• https://md5decrypt.net/
• https://www.onlinehashcrack.com
• https://gpuhash.me/
• https://hashes.org/search.php
• https://www.cmd5.org/
• https://hashkiller.co.uk/Cracker/MD5
• https://www.md5online.org/md5-decrypt.html

Magični automatski rešavači

• https://github.com/Ciphey/Ciphey
• https://gchq.github.io/CyberChef/ (Magični modul)
• https://github.com/dhondta/python-codext
• https://www.boxentriq.com/code-breaking

Kodovi za enkodovanje

Većina enkodovanih podataka može se dekodovati pomoću ovih 2 resursa:

• https://www.dcode.fr/tools-list
• https://gchq.github.io/CyberChef/

Substitucioni automatski rešavači

• https://www.boxentriq.com/code-breaking/cryptogram
• https://quipqiup.com/ - Veoma dobro !

Cezar - ROTx automatski rešavači

• https://www.nayuki.io/page/automatic-caesar-cipher-breaker-javascript

Atbash šifra

• http://rumkin.com/tools/cipher/atbash.php

Automatski rešavači za osnovne enkodovanja

Proverite sve ove baze sa: https://github.com/dhondta/python-codext

• HAZZ15 [HNO4klm6ij9n+J2hyf0gzA8uvwDEq3X1Q7ZKeFrWcVTts/MRGYbdxSo=ILaUpPBC5]
• DmPsv8J7qrlKEoY7
• MEGAN35 [3G-Ub=c-pW-Z/12+406-9Vaq-zA-F5]
• 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↻├☰┏]

╫☐↑Λ↻Λ┏Λ↻☐↑Λ

• http://k4.cba.pl/dw/crypo/tools/eng_hackerize.html - 404 Mrtav: https://web.archive.org/web/20190228181208/http://k4.cba.pl/dw/crypo/tools/eng_hackerize.html

Morse

.... --- .-.. -.-. .- .-. .- -.-. --- .-.. .-

• http://k4.cba.pl/dw/crypo/tools/eng_morse-encode.html - 404 Mrtav: https://gchq.github.io/CyberChef/

UUencoder

begin 644 webutils_pl
M2$],04A/3$%(3TQ!2$],04A/3$%(3TQ!2$],04A/3$%(3TQ!2$],04A/3$%(
M3TQ!2$],04A/3$%(3TQ!2$],04A/3$%(3TQ!2$],04A/3$%(3TQ!2$],04A/
F3$%(3TQ!2$],04A/3$%(3TQ!2$],04A/3$%(3TQ!2$],04A/3$$`
`
end

• http://www.webutils.pl/index.php?idx=uu

XXEnkoder

begin 644 webutils_pl
hG2xAEIVDH236Hol-G2xAEIVDH236Hol-G2xAEIVDH236Hol-G2xAEIVDH236
5Hol-G2xAEE++
end

• www.webutils.pl/index.php?idx=xx

YEncoder

=ybegin line=128 size=28 name=webutils_pl
ryvkryvkryvkryvkryvkryvkryvk
=yend size=28 crc32=35834c86

• http://www.webutils.pl/index.php?idx=yenc

BinHex

(This file must be converted with BinHex 4.0)
:#hGPBR9dD@acAh"X!$mr2cmr2cmr!!!!!!!8!!!!!-ka5%p-38K26%&)6da"5%p
-38K26%'d9J!!:

• http://www.webutils.pl/index.php?idx=binhex

ASCII85

<~85DoF85DoF85DoF85DoF85DoF85DoF~>

• http://www.webutils.pl/index.php?idx=ascii85

Dvorak tastatura

drnajapajrna

• https://www.geocachingtoolbox.com/index.php?lang=en&page=dvorakKeyboard

A1Z26

Slova njihova numerička vrednost

8 15 12 1 3 1 18 1 3 15 12 1

Afinski šifarski kod

Pretvori slovo u broj (ax+b)%26 (a i b su ključevi, a x je slovo) i rezultat ponovo u slovo

krodfdudfrod

SMS Kod

Multitap zamenjuje slovo ponovljenim brojevima definisanim odgovarajućim kodom tastera na mobilnoj telefonskoj tastaturi (Ovaj režim se koristi prilikom pisanja SMS poruka).
Na primer: 2=A, 22=B, 222=C, 3=D...
Možete identifikovati ovaj kod jer ćete videti** više puta ponovljene brojeve**.

Ovaj kod možete dekodirati na: https://www.dcode.fr/multitap-abc-cipher

Bacon Kod

Zamenite svako slovo sa 4 A ili B (ili 1 i 0)

00111 01101 01010 00000 00010 00000 10000 00000 00010 01101 01010 00000
AABBB ABBAB ABABA AAAAA AAABA AAAAA BAAAA AAAAA AAABA ABBAB ABABA AAAAA

Runovi

Kompresija

Sirovi Deflate i Sirovi Inflate (možete pronaći oba u Cyberchef-u) mogu kompresovati i dekompresovati podatke bez zaglavlja.

Jednostavna Kriptografija

XOR - Automatsko rešenje

• https://wiremask.eu/tools/xor-cracker/

Bifid

Potreban je ključna reč

fgaargaamnlunesuneoa

Vigenere

Potreban je ključ

wodsyoidrods

• https://www.guballa.de/vigenere-solver
• https://www.dcode.fr/vigenere-cipher
• https://www.mygeocachingprofile.com/codebreaker.vigenerecipher.aspx

Jaka Kriptografija

Fernet

2 base64 stringa (token i ključ)

Token:
gAAAAABWC9P7-9RsxTz_dwxh9-O2VUB7Ih8UCQL1_Zk4suxnkCvb26Ie4i8HSUJ4caHZuiNtjLl3qfmCv_fS3_VpjL7HxCz7_Q==

Key:
-s6eI5hyNh8liH7Gq0urPC-vzPgNnxauKvRO4g03oYI=

• https://asecuritysite.com/encryption/ferdecode

Samir Deljenje tajni

Tajna je podeljena na X delova i da biste je vratili, potrebno vam je Y delova (Y <=X).

8019f8fa5879aa3e07858d08308dc1a8b45
80223035713295bddf0b0bd1b10a5340b89
803bc8cf294b3f83d88e86d9818792e80cd

http://christian.gen.co/secrets/

OpenSSL brute-force

• https://github.com/glv2/bruteforce-salted-openssl
• https://github.com/carlospolop/easy_BFopensslCTF

Alati

• https://github.com/Ganapati/RsaCtfTool
• https://github.com/lockedbyte/cryptovenom
• https://github.com/nccgroup/featherduster

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