![]() Using the Vernam encryption algorithm, the key processed by it can have the same key length as the file to be encrypted, and the size of the output file has no change (accurate to bytes) compared to the file to be encrypted. Then use these two files to combine to generate ciphertext: (plaintext) combination (key) = encrypted ciphertext. ![]() Its basic principle is that there needs to be a plaintext to be encrypted and a randomly generated decryption key file. The data encrypted by this type can never be cracked without a key. This article describes how to implement a concise and stable file encryption and decryption class through Gilbert Sandford Vernam's algorithm.
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