This is a Python script that implements a simple encryption and decryption algorithm. The script uses four different encryption methods: base64 encoding with 16, 32, 64, and 85 bits. The encryption method used is selected randomly. The script also includes a simple anti-debugging technique and a self-modifying code feature.
The script consists of several functions:
random_char: generates a random character from the ASCII letters.encrypt: takes a list of lines as input, encrypts each line using one of the four encryption methods, and returns the encrypted lines and the encryption method used.write_lines: writes the encrypted lines to a file.decrypt: takes the encrypted lines and the encryption method used, decrypts the lines, and executes the decrypted code.main: the main function that reads the script, encrypts the lines, writes the encrypted lines to a file, and decrypts the lines.
- The script starts by importing the necessary libraries:
os,base64,random,string,hashlib,struct,socket. - The
random_charfunction generates a random character from the ASCII letters. - The
encryptfunction takes a list of lines as input, encrypts each line using one of the four encryption methods, and returns the encrypted lines and the encryption method used. - The
write_linesfunction writes the encrypted lines to a file. - The
decryptfunction takes the encrypted lines and the encryption method used, decrypts the lines, and executes the decrypted code. - The
mainfunction reads the script, encrypts the lines, writes the encrypted lines to a file, and decrypts the lines.
To use the script, simply run it using the Python interpreter. The script will encrypt the lines and write them to a file. To decrypt the lines, run the script again with the encryption method used as an argument.
The script uses four different encryption methods: base64 encoding with 16, 32, 64, and 85 bits. The encryption method used is selected randomly.
This script is licensed under the MIT License.