Certified encryption specialist practice / Revised Questions and Answers / Guaranteed Pass
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Certified encryption specialist
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Certified Encryption Specialist
___ was designed to provide built in cryptography for the clipper chip.
+3DES
+GOST
+Skipjack
+Blowfish - Skipjack
The Clipper chip used a data encryption algorithm called Skipjack to transmit information and the DiffieHellman key exchange-algorithm to distribute the cryptokeys between the pee...
Certified encryption specialist practice /
Revised Questions and Answers / Guaranteed
Pass
___ was designed to provide built in cryptography for the clipper chip.
+3DES
+GOST
+Skipjack
+Blowfish - Skipjack
The Clipper chip used a data encryption algorithm called Skipjack to transmit information and the Diffie-
Hellman key exchange-algorithm to distribute the cryptokeys between the peers.
_____ uses at least two different shifts, changing the shift with different letters in the plain text.
Polyalphabetic Substitution Ciphers are a lot more secure than their Monoalphabetic cousins, as they
use different ciphertext alphabets in the encryption process.
A _____ is a function that takes a variable-size input m and returns a fixed-size string.
+Hash
+Symmetric cipher
+Feistel
,+Asymmetric cipher - Hash
A hash function is any function that can be used to map data of arbitrary size to data of fixed size. The
values returned by a hash function are called hash values, hash codes, digests, or simply hashes.
A ______ refers to a situation where two different inputs yield the same output.
Collision
Transposition
Convergence
Substitution - Collision
A _________ is a digital representation of information that identifies you as a relevant entity by a trusted
third party?
+Ownership stamp
+Digest
+Digital Signature
+Hash - Digital Signature
A digital signature is a mathematical scheme for demonstrating the authenticity of digital messages or
documents
A fixed-size pseudorandom number that is fed into a symmetric cipher to increase randomness is called
what?
IV
Salt
Key
Chain - IV
, Intialization vector
A number that is used only one time then discarded is called what?
IV
Nonce
Salt
Chain - Nonce
A process that puts a message into the least significant bits of a binary file is called what?
Masking
Asymmetric cryptography
Symmetric cryptography
Steganography - Steganography
An authentication method that periodically re-authenticates the client by establishing a hash that is then
resent from the client is called ______.
EAP
SPAP
CHAP
PAP - Challenge handshake Authentication protocol
DES uses keys of what size?
+56 bits
+192 bits
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