The Caesar cipher is one of the simplest and oldest encryption techniques. It’s a type of substitution cipher, where each letter in the plaintext is shifted by a fixed number of positions in the ...

The value is the cipher key. For example, the code IBDLBEBZ is encrypted with a Caesar Cipher. It doesn’t take very much to see that a shift of “1” would reveal HACKADAY.

The Cipher Challenge The simplest cipher is called a Caesar cipher, where letters are shifted a predetermined amount: For instance, you can shift it two letters so that A becomes C, B becomes D ...

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 ...