A command-line program to encrypt/decrypt a message using a random reciprocal bigram table and write a bigram table to a text file.
Executing the program without any command-line arguments starts bigram in message encryption/decryption mode. The program prompts for a password or passphrase and a message to encrypt/ decrypt. After the message is entered the ciphertext is displayed.
Executing the program with command-line arguments causes bigram to generate a random bigram table to print...