Crypto

Encapsulate multiple CTFs and common encryption and encoding C# libraries

In my blog, I've written about the introduction and analysis of various types of encryption and functions in the class library.标签: Crypto | 时光

Supported encoding and encryption

DecryptEncrypt

Salt (randomly generated)
32/16-bit MD5
XOR(Optional return value is Base64)
Caesar encryption
Rot13
Bacon password
Fence password
Virginia password
AES(128-bit ECB、CBC)
Sha1、Sha256
CRC32

code

Base64/32/16
Morse(Only supports alphanumeric now)
url
ASCII,Unicode and string convert to each other
String to Unicode encoding in decimal format(xss->&#120&#115&#115)
Hexadecimal ASCII string to string
Original code to Inverse code and Complement code

Conversion

Arbitrary conversion(Supports up to 62 binary conversions,support array,does not support decimals and negative number now)
Arbitrary four-order operation (based on int decimal, so its value can not be more than int range in decimal operation)

CryptoFileInfo

Get file md5
Get file Sha1
Get file Sha256
（FileInfo）Get file name, extension, size, creation time last access and write time, attribute

Cryptofile

Reverse file to new file
File to byte array or string
Byte array or string written to file
Temporary file operation(CryptoFileInfo support)

CryptoString

Generate a random string
Reverse string
Decimal digit string convert to the int value
String, byte array and stream convert to each other
Regular match returns an array of results
Regular match and replace
Commonly used strings, regular expressions

CryptoZip

Compressed file fake encryption

JSFUCK

jsfuck decode

Todo

RSA
Manchester code
Differential Manchester code
Blowfish
Elliptic Curve Cryptography(ECC)
DES
rc4
brainfuck
aaencode
Tencent TEA algorithm根据腾讯公开的JS文件分析QQTEA算法
wordpress user's password encryptionwordpress用户密码加密原理及其算法分析
php serialization and deserialization
baze64（https://github.com/xanderma/QQ-Confess/blob/master/src/Baze64.java）
gzip,utf8, etc. conversion
[Detect encryption type]

Virginia Key Crack http://www.practicalcryptography.com/cryptanalysis/stochastic-searching/cryptanalysis-vigenere-cipher/

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LICENSE

Apache