In 1917, Gilbert S. Vernam, an AT&T employee, invented a polyalphabetic cipher machine that used a non-repeating random key.
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One encryption method made popular by spy movies involves us…
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 includ…
PKI systems are based on public key cryptosystems and include digital certificates and certificate authorities.
Bit stream methods most commonly use functions like _____.
Bit stream methods most commonly use functions like _____.
The encapsulating security payload protocol provides secrecy…
The encapsulating security payload protocol provides secrecy for the contents of network communications as well as system-to-system authentication and data integrity verification.
As frustrating as viruses and worms are, perhaps more time a…
As frustrating as viruses and worms are, perhaps more time and money is spent on resolving ____.
Acts of ____ can lead to unauthorized real or virtual action…
Acts of ____ can lead to unauthorized real or virtual actions that enable information gatherers to enter premises or systems they have not been authorized to enter.
A(n) ____ is an attack in which a coordinated stream of requ…
A(n) ____ is an attack in which a coordinated stream of requests is launched against a target from many locations at the same time.
Which of the following is an example of a Trojan horse progr…
Which of the following is an example of a Trojan horse program?
Compared to Web site defacement, vandalism from within a net…
Compared to Web site defacement, vandalism from within a network is less malicious in intent and more public.