This is a C++ implementation of a basic encryption algorithm that generates an encryption key based on a pseudorandomly parameterized conic curve. The inverse function of the same conic curve may then be used to decrypt the encrypted message and return the original message.
The file encryption.cpp reads from data.txt and writes the encoded text to a text file which is read by the file decryption.cpp.
The project implements the parabolic encryption algorithm, which takes in a string input, converts each character of the string
into some another based on the equation of an upward parabola: y2 = 4ax, where x is the index of that particular input character,
a is a the encryption distance calculated during runtime and y is the function of x, which is added to the ASCII value of the original
character to get the encrypted character.
Similarly, the decryption algorithm takes in the encrypted string obtained using the above encryption algorithm,
applies the inverse function of the parabola function : x = -√4ay on each character of the string, where y is the index of the
encrypted input character, a is the same encryption distance as before and x is the function of y, which is added to the ASCII value
of the encrypted character to get the decrypted character.
Compile the encryption file with
g++ encryption.cpp -lmCompile the decryption file with
g++ decryption.cpp -lmRun the encryption with
./a.out < file_to_encrypt.txtRun the decryption with
./a.out < file_to_decrypt.txt