Tool for encrypting and decrypting a file (to prevent it from being misused by someone else) in DOS.
Its uses polygraphic substitution ciper for encryptions, and uses a checksum to verify the integrity of the decrypted file. It can be used to prevent someone else to misuse your file in case he/she gets hands on it. This is a DOS program, hence you would need DOSBox to use it.
Start ENCRYPT.EXE. Select Encrypt File.
Original file README.md to be encrypted.
Enter original file name : README.md.
Enter password for file : ******.
Renter password for file : ******.
Enter encrypted file name : README.MDE.
Encryption done : README.md -> README.MDE.
Encrypted file : README.MDE (to be decrypted).
Select Decrypt File.
Enter encrypted file name : README.MDE.
Enter password for file : ******.
Renter password for file : ******.
Enter decrypted file name : README.MDD.
Decryption done : README.MDE -> README.MDD.
Decrypted file README.MDD, same as original README.md.
