Introduction to ciphers and substitution. Alice and Bob and Carl and Julius: terminology and Caesar Cipher ; The key to the matter: generalizing the Caesar Cipher ; Multiplicative ciphers ; Affine ...

A formula used to turn ordinary data, or "plaintext," into a secret coded message known as "ciphertext." The ciphertext can reside in storage or travel over unsecure networks without its contents ...

Cryptography, in the dictionary, is the art of writing or solving codes. In the security world, its the practice and study of techniques for secure communication in the presence of third parties ...

The arena of creating secure environments in the hardware and software industries is somewhat shrouded in mystery and misunderstanding. Certainly, some types of ciphers are relatively straightforward ...

The NSA Report: Liberty and Security in a Changing World is out, suggesting 46 specific actions the US government can take to make sure nothing like the Snowden debacle ever happens again. The ideas ...

When one thinks about cryptography or encryption in World War II, the first thing that comes to mind is the Enigma Machine used by the Nazis, whose code was broken by the Allies and used as a secret ...

The Cupertino, Calif.-based company launched this month with a virtual appliance that can be used on-premise or in the cloud to encrypt sensitive data before it reaches the cloud. And unlike other ...