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Sequence encryption is a series of encryptions and decryptions between a number of systems, wherein each system in a network decrypts the message sent to it and then reencrypts it using different keys and sends it to the next neighbor, and this process continues until the message reaches the final destination.

____ is the entire range of values that can possibly be used to construct an individual key.

Popular cryptosystems use a hybrid combination of symmetric and asymmetric algorithms.

SSL builds on the encoding format of the Multipurpose Internet Mail Extensions protocol and uses digital signatures based on public key cryptosystems to secure e-mail.

Two hundred and eighty five computers can crack a 56-bit key in one year, ten times as many would do it in a little over a month.

In 1917, Gilbert S. Vernam, an AT&T employee, invented a polyalphabetic cipher machine that used a non-repeating random key.

One encryption method made popular by spy movies involves using the text in a book as the key to decrypt a message.

PKI systems are based on public key cryptosystems and include digital certificates and certificate authorities.

Bit stream methods most commonly use functions like _____.

The encapsulating security payload protocol provides secrecy for the contents of network communications as well as system-to-system authentication and data integrity verification.