hacktricks/crypto-and-stego/crypto-ctfs-tricks.md

# Crypto CTFs 技巧

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## 在线哈希数据库

* _**谷歌搜索**_
* [http://hashtoolkit.com/reverse-hash?hash=4d186321c1a7f0f354b297e8914ab240](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://www.onlinehashcrack.com)
* [https://gpuhash.me/](https://gpuhash.me)
* [https://hashes.org/search.php](https://hashes.org/search.php)
* [https://www.cmd5.org/](https://www.cmd5.org)
* [https://hashkiller.co.uk/Cracker/MD5](https://hashkiller.co.uk/Cracker/MD5)
* [https://www.md5online.org/md5-decrypt.html](https://www.md5online.org/md5-decrypt.html)

## 魔术自动解密器

* [**https://github.com/Ciphey/Ciphey**](https://github.com/Ciphey/Ciphey)
* [https://gchq.github.io/CyberChef/](https://gchq.github.io/CyberChef/) (魔术模块)
* [https://github.com/dhondta/python-codext](https://github.com/dhondta/python-codext)
* [https://www.boxentriq.com/code-breaking](https://www.boxentriq.com/code-breaking)

## 编码器

大多数编码数据可以使用以下两个资源进行解码：

* [https://www.dcode.fr/tools-list](https://www.dcode.fr/tools-list)
* [https://gchq.github.io/CyberChef/](https://gchq.github.io/CyberChef/)

### 替换自动解密器

* [https://www.boxentriq.com/code-breaking/cryptogram](https://www.boxentriq.com/code-breaking/cryptogram)
* [https://quipqiup.com/](https://quipqiup.com) - 非常好！

#### 凯撒密码 - ROTx 自动解密器

* [https://www.nayuki.io/page/automatic-caesar-cipher-breaker-javascript](https://www.nayuki.io/page/automatic-caesar-cipher-breaker-javascript)

#### 阿特巴什密码

* [http://rumkin.com/tools/cipher/atbash.php](http://rumkin.com/tools/cipher/atbash.php)

### 基础编码自动解密器

使用以下链接检查所有这些基础编码：[https://github.com/dhondta/python-codext](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](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](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](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](https://web.archive.org/web/20190228181208/http://k4.cba.pl/dw/crypo/tools/eng\_hackerize.html)

### Morse

### Morse
```
.... --- .-.. -.-. .- .-. .- -.-. --- .-.. .-
```
* [http://k4.cba.pl/dw/crypo/tools/eng\_morse-encode.html](http://k4.cba.pl/dw/crypo/tools/eng\_morse-encode.html) - 404 页面不存在: [https://gchq.github.io/CyberChef/](https://gchq.github.io/CyberChef/)

### UU编码器
```
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](http://www.webutils.pl/index.php?idx=uu)

### XX编码器
```
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

* [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](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](http://www.webutils.pl/index.php?idx=binhex)

### ASCII85
```
<~85DoF85DoF85DoF85DoF85DoF85DoF~>
```
* [http://www.webutils.pl/index.php?idx=ascii85](http://www.webutils.pl/index.php?idx=ascii85)

### Dvorak键盘
```
drnajapajrna
```
* [https://www.geocachingtoolbox.com/index.php?lang=en\&page=dvorakKeyboard](https://www.geocachingtoolbox.com/index.php?lang=en\&page=dvorakKeyboard)

### A1Z26

字母对应它们的数字值
```
8 15 12 1 3 1 18 1 3 15 12 1
```
### 仿射密码编码

将字母转换为数字 `(ax+b)%26`（_a_ 和 _b_ 是密钥，_x_ 是字母），然后将结果转换回字母
```
krodfdudfrod
```
### 短信代码

**Multitap** [通过在移动电话键盘上定义的相应键代码重复数字来替换字母](https://www.dcode.fr/word-letter-change)（在编写短信时使用此模式）。\
例如：2=A, 22=B, 222=C, 3=D...\
您可以识别此代码，因为您会看到**多个重复的数字**。

您可以在以下链接中解码此代码：[https://www.dcode.fr/multitap-abc-cipher](https://www.dcode.fr/multitap-abc-cipher)

### 培根密码

将每个字母替换为4个A或B（或1和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
```
### 符文

![](../.gitbook/assets/runes.jpg)

## 压缩

**原始压缩** 和 **原始解压**（你可以在 Cyberchef 中找到）可以压缩和解压数据而不包含头部信息。

## 简单加密

### 异或 - 自动解密器

* [https://wiremask.eu/tools/xor-cracker/](https://wiremask.eu/tools/xor-cracker/)

### Bifid

需要关键词
```
fgaargaamnlunesuneoa
```
### 维吉尼亚密码

需要一个关键词
```
wodsyoidrods
```
* [https://www.guballa.de/vigenere-solver](https://www.guballa.de/vigenere-solver)
* [https://www.dcode.fr/vigenere-cipher](https://www.dcode.fr/vigenere-cipher)
* [https://www.mygeocachingprofile.com/codebreaker.vigenerecipher.aspx](https://www.mygeocachingprofile.com/codebreaker.vigenerecipher.aspx)

## 强加密

### Fernet

2个base64字符串（token和key）
```
Token:
gAAAAABWC9P7-9RsxTz_dwxh9-O2VUB7Ih8UCQL1_Zk4suxnkCvb26Ie4i8HSUJ4caHZuiNtjLl3qfmCv_fS3_VpjL7HxCz7_Q==

Key:
-s6eI5hyNh8liH7Gq0urPC-vzPgNnxauKvRO4g03oYI=
```
* [https://asecuritysite.com/encryption/ferdecode](https://asecuritysite.com/encryption/ferdecode)

### Samir 秘密分享

一个秘密被分成 X 部分，要恢复它，你需要 Y 部分（_Y <=X_）。
```
8019f8fa5879aa3e07858d08308dc1a8b45
80223035713295bddf0b0bd1b10a5340b89
803bc8cf294b3f83d88e86d9818792e80cd
```
[http://christian.gen.co/secrets/](http://christian.gen.co/secrets/)

### OpenSSL暴力破解

* [https://github.com/glv2/bruteforce-salted-openssl](https://github.com/glv2/bruteforce-salted-openssl)
* [https://github.com/carlospolop/easy\_BFopensslCTF](https://github.com/carlospolop/easy\_BFopensslCTF)

## 工具

* [https://github.com/Ganapati/RsaCtfTool](https://github.com/Ganapati/RsaCtfTool)
* [https://github.com/lockedbyte/cryptovenom](https://github.com/lockedbyte/cryptovenom)
* [https://github.com/nccgroup/featherduster](https://github.com/nccgroup/featherduster)

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