Encryption offers security in case of interception by an unauthorized source.
Data encryption keeps data private by transforming the data into a format that can't be read by those who don't have a secret decryption key. Encryption, performed using the Blowfish algorithm, provides a variable key length of up to 144 bits. For best effectiveness, encryption is performed across the entire data stream rather than on individual packets only. All Intel Express Router models come in two versions, with or with out encryption. Whether or not you can use data encryption depends heavily on local legislation.