You could do worse than to confuse the meanings of "code" and "cipher"—even cryptographers sometime use the terms as though they had the same meaning. There is, however, a definite distinction between ...

Since its release in March 2024, Hamster Kombat has been generating some excitement in the cryptocurrency gaming world. It ...

In Part I, you broke a simple cipher. Now try creating a more complex cipher. Cut out the NOVA Decoder Ring and NOVA Cipher Code Ring and the window marked INDEX. You are now going to put this simple ...

We recently had a rainy weekend interrupt our original plans to go geocaching. Instead, I took inspiration from John Baichtel's recent posting - Codes For Kids - to introduce my kids to ciphers.

The National Security Agency can easily defeat the world’s most widely used cellphone encryption, a capability that means the agency can decode most of the billions of calls and texts that travel over ...