Forget invisible ink, how about super-secret ink? Scientists have successfully hidden a 256-bit cipher key within molecules of ink on a handwritten letter.

Encryption keys are vital to the secure operation of payment acceptance devices. But key transport protocols have not kept pace with the movement toward standardized encryption practices. This adds ...

Typically asymmetric keys are used to encrypt symmetric keys. It's a lot faster to decode using something like AES, than encrypting very large binaries with asymmetric keys. The idea is the AES ...

That key exchange is an ephemeral exchange; The connection switches over to 128-bit AES encryption afterward. You can also configure your connection to instead use 256-bit AES encryption.