> For the complete documentation index, see [llms.txt](https://angelica.gitbook.io/hacktricks/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://angelica.gitbook.io/hacktricks/crypto-and-stego/crypto-ctfs-tricks.md).

# Crypto CTFs Tricks

{% hint style="success" %}
Learn & practice AWS Hacking:<img src="/files/Xcgr3q6BP5MpWT3hTn6d" alt="" data-size="line">[**HackTricks Training AWS Red Team Expert (ARTE)**](https://training.hacktricks.xyz/courses/arte)<img src="/files/Xcgr3q6BP5MpWT3hTn6d" alt="" data-size="line">\
Learn & practice GCP Hacking: <img src="/files/aQnEyHWQGyok3qCc92qt" alt="" data-size="line">[**HackTricks Training GCP Red Team Expert (GRTE)**<img src="/files/aQnEyHWQGyok3qCc92qt" alt="" data-size="line">](https://training.hacktricks.xyz/courses/grte)

<details>

<summary>Support HackTricks</summary>

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* **Share hacking tricks by submitting PRs to the** [**HackTricks**](https://github.com/carlospolop/hacktricks) and [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) github repos.

</details>
{% endhint %}

## Online Hashes DBs

* ***Google it***
* <http://hashtoolkit.com/reverse-hash?hash=4d186321c1a7f0f354b297e8914ab240>
* [https://www.onlinehashcrack.com/](https://www.onlinehashcrack.com)
* [https://crackstation.net/](https://crackstation.net)
* [https://md5decrypt.net/](https://md5decrypt.net)
* <https://www.onlinehashcrack.com>
* [https://gpuhash.me/](https://gpuhash.me)
* <https://hashes.org/search.php>
* [https://www.cmd5.org/](https://www.cmd5.org)
* <https://hashkiller.co.uk/Cracker/MD5>
* <https://www.md5online.org/md5-decrypt.html>

## Magic Autosolvers

* [**https://github.com/Ciphey/Ciphey**](https://github.com/Ciphey/Ciphey)
* <https://gchq.github.io/CyberChef/> (Magic module)
* <https://github.com/dhondta/python-codext>
* <https://www.boxentriq.com/code-breaking>

## Encoders

Most of encoded data can be decoded with these 2 ressources:

* <https://www.dcode.fr/tools-list>
* <https://gchq.github.io/CyberChef/>

### Substitution Autosolvers

* <https://www.boxentriq.com/code-breaking/cryptogram>
* [https://quipqiup.com/](https://quipqiup.com) - Very good !

#### Caesar - ROTx Autosolvers

* <https://www.nayuki.io/page/automatic-caesar-cipher-breaker-javascript>

#### Atbash Cipher

* <http://rumkin.com/tools/cipher/atbash.php>

### Base Encodings Autosolver

Check all these bases with: <https://github.com/dhondta/python-codext>

* **Ascii85**
  * `BQ%]q@psCd@rH0l`
* **Base26** \[*A-Z*]
  * `BQEKGAHRJKHQMVZGKUXNT`
* **Base32** \[*A-Z2-7=*]
  * `NBXWYYLDMFZGCY3PNRQQ====`
* **Zbase32** \[*ybndrfg8ejkmcpqxot1uwisza345h769*]
  * `pbzsaamdcf3gna5xptoo====`
* **Base32 Geohash** \[*0-9b-hjkmnp-z*]
  * `e1rqssc3d5t62svgejhh====`
* **Base32 Crockford** \[*0-9A-HJKMNP-TV-Z*]
  * `D1QPRRB3C5S62RVFDHGG====`
* **Base32 Extended Hexadecimal** \[*0-9A-V*]
  * `D1NMOOB3C5P62ORFDHGG====`
* **Base45** \[*0-9A-Z $%\*+-./:*]
  * `59DPVDGPCVKEUPCPVD`
* **Base58 (bitcoin)** \[*1-9A-HJ-NP-Za-km-z*]
  * `2yJiRg5BF9gmsU6AC`
* **Base58 (flickr)** \[*1-9a-km-zA-HJ-NP-Z*]
  * `2YiHqF5bf9FLSt6ac`
* **Base58 (ripple)** \[*rpshnaf39wBUDNEGHJKLM4PQ-T7V-Z2b-eCg65jkm8oFqi1tuvAxyz*]
  * `pyJ5RgnBE9gm17awU`
* **Base62** \[*0-9A-Za-z*]
  * `g2AextRZpBKRBzQ9`
* **Base64** \[*A-Za-z0-9+/=*]
  * `aG9sYWNhcmFjb2xh`
* **Base67** \[*A-Za-z0-9-*.!\~\_]
  * `NI9JKX0cSUdqhr!p`
* **Base85 (Ascii85)** \[*!"#$%&'()\*+,-./0-9:;<=>?@A-Z\[\\]^\_\`a-u*]
  * `BQ%]q@psCd@rH0l`
* **Base85 (Adobe)** \[*!"#$%&'()\*+,-./0-9:;<=>?@A-Z\[\\]^\_\`a-u*]
  * `<~BQ%]q@psCd@rH0l~>`
* **Base85 (IPv6 or RFC1924)** \[*0-9A-Za-z!#$%&()\*+-;<=>?@^*\`{|}\~\_]
  * `Xm4y`V\_|Y(V{dF>\`
* **Base85 (xbtoa)** \[*!"#$%&'()\*+,-./0-9:;<=>?@A-Z\[\\]^\_\`a-u*]
  * `xbtoa Begin\nBQ%]q@psCd@rH0l\nxbtoa End N 12 c E 1a S 4e6 R 6991d`
* **Base85 (XML)** \[*0-9A-Za-y!#$()\*+,-./:;=?@^\`{|}\~z\_*]
  * `Xm4y|V{~Y+V}dF?`
* **Base91** \[*A-Za-z0-9!#$%&()\*+,./:;<=>?@\[]^\_\`{|}\~"*]
  * `frDg[*jNN!7&BQM`
* **Base100** \[]
  * `👟👦👣👘👚👘👩👘👚👦👣👘`
* **Base122** \[]
  * `4F ˂r0Xmvc`
* **ATOM-128** \[*/128GhIoPQROSTeUbADfgHijKLM+n0pFWXY456xyzB7=39VaqrstJklmNuZvwcdEC*]
  * `MIc3KiXa+Ihz+lrXMIc3KbCC`
* **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 Dead: <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 Dead: <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>

### XXEncoder

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

* [www.webutils.pl/index.php?idx=xx](https://github.com/carlospolop/hacktricks/tree/bf578e4c5a955b4f6cdbe67eb4a543e16a3f848d/crypto/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 keyboard

```
drnajapajrna
```

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

### A1Z26

Letters to their numerical value

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

### 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

```
krodfdudfrod
```

### SMS Code

**Multitap** [replaces a letter](https://www.dcode.fr/word-letter-change) by repeated digits defined by the corresponding key code on a mobile [phone keypad](https://www.dcode.fr/phone-keypad-cipher) (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)

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

### Runes

![](/files/S8RjJVxuQkHmz2MAMdGK)

## Compression

**Raw Deflate** and **Raw Inflate** (you can find both in Cyberchef) can compress and decompress data without headers.

## Easy Crypto

### XOR - Autosolver

* <https://wiremask.eu/tools/xor-cracker/>

### Bifid

A keywork is needed

```
fgaargaamnlunesuneoa
```

### Vigenere

A keywork is needed

```
wodsyoidrods
```

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

## Strong Crypto

### Fernet

2 base64 strings (token and key)

```
Token:
gAAAAABWC9P7-9RsxTz_dwxh9-O2VUB7Ih8UCQL1_Zk4suxnkCvb26Ie4i8HSUJ4caHZuiNtjLl3qfmCv_fS3_VpjL7HxCz7_Q==

Key:
-s6eI5hyNh8liH7Gq0urPC-vzPgNnxauKvRO4g03oYI=
```

* <https://asecuritysite.com/encryption/ferdecode>

### Samir Secret Sharing

A secret is splitted in X parts and to recover it you need Y parts (*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>

## Tools

* <https://github.com/Ganapati/RsaCtfTool>
* <https://github.com/lockedbyte/cryptovenom>
* <https://github.com/nccgroup/featherduster>

{% hint style="success" %}
Learn & practice AWS Hacking:<img src="/files/Xcgr3q6BP5MpWT3hTn6d" alt="" data-size="line">[**HackTricks Training AWS Red Team Expert (ARTE)**](https://training.hacktricks.xyz/courses/arte)<img src="/files/Xcgr3q6BP5MpWT3hTn6d" alt="" data-size="line">\
Learn & practice GCP Hacking: <img src="/files/aQnEyHWQGyok3qCc92qt" alt="" data-size="line">[**HackTricks Training GCP Red Team Expert (GRTE)**<img src="/files/aQnEyHWQGyok3qCc92qt" alt="" data-size="line">](https://training.hacktricks.xyz/courses/grte)

<details>

<summary>Support HackTricks</summary>

* Check the [**subscription plans**](https://github.com/sponsors/carlospolop)!
* **Join the** 💬 [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** us on **Twitter** 🐦 [**@hacktricks\_live**](https://twitter.com/hacktricks_live)**.**
* **Share hacking tricks by submitting PRs to the** [**HackTricks**](https://github.com/carlospolop/hacktricks) and [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) github repos.

</details>
{% endhint %}


---

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