The message is called the plaintext because it is the unchanged source information. Example: The cat ran away. The secret message generated is called a cipher or ciphertext and it is the encrypted ...

Secret code or foreign language? For machines, it might not matter. Without any prior knowledge, artificial intelligence algorithms have cracked two classic forms of encryption: the Caesar cipher and ...

At the US Central Intelligence Agency’s headquarters in Langley, Virginia, there is a monument to secrecy that has vexed both professional and amateur codebreakers for over two decades. Erected in ...