_____ algorithms registered by the National Institute of Standards and Technology (NIST) but are not
Federal Information Processing Standards (FIPS) published. They are unevaluated commercial
cryptographic equipment, assemblies, or components that neither NSA nor NIST certify for any
government ...
EC-Council Certified Encryption Specialist v2 (ECES) -
Practice Revised Questions and Answers / Guaranteed
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______ algorithms registered by the National Institute of Standards and Technology (NIST) but are not
Federal Information Processing Standards (FIPS) published. They are unevaluated commercial
cryptographic equipment, assemblies, or components that neither NSA nor NIST certify for any
government usage.
a. NSA Type 1
b. NSA Type 2
c. NSA Type 3
d. NSA Type 4 - d. NSA Type 4
______ algorithms used for unclassified cryptographic equipment, assemblies, or components. Endorsed
by the NSA for use in telecommunications and automated information systems for the protection of
national security information. Approved algorithms include Skipjack and KEA.
a. NSA Type 1
b. NSA Type 2
c. NSA Type 3
d. NSA Type 4 - b. NSA Type 2
______ product is a device for use with Sensitive But Unclassified (SBU) information on non-national
security systems. Approved algorithms include DES, 3DES, SHA, and AES.
a. NSA Type 1
b. NSA Type 2
c. NSA Type 3
d. NSA Type 4 - c. NSA Type 3
______ product refers to an NSA-endorsed classified or controlled cryptographic item for classified or
sensitive U.S. government information, including cryptographic equipment, assemblies, or components
classified or certified by NSA for encrypting and decrypting classified and sensitive national security
,information when appropriately keyed. Products include JUNIPER, MAYFLY, FASTHASH, WALBURN, and
PEGASUS.
a. NSA Type 1
b. NSA Type 2
c. NSA Type 3
d. NSA Type 4 - a. NSA Type 1
___________ is changing some part of the plain text for some matching part of cipher text.
a. transposition
b. substitution
c. substitution and transposition
d. confusion - b. substitution
___________ is the swapping of blocks of cipher text.
a. transposition
b. substitution
c. substitution and transposition
d. confusion - a. transposition
____________ cryptography uses one key to encrypt a message and a different key to decrypt it.
a. Asymmetric
b. Symmetric
c. Stream
d. Secure - a. Asymmetric
128 bit hash that is specified by RFC 1321
a. SHA
b. MD5
c. MD6
,d. FORK-256
e. RIPEMD-160
f. GOST
g. TIGER - b. MD5
160-bit hash algorithm developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
a. SHA-1
b. MD6
c. FORK-256
d. RIPEMD-160
e. GOST
f. TIGER - d. RIPEMD-160
3DES block size?
a. 32 bit
b. 64 bit
c. 128 bit
d. 256 bit - b. 64 bit
3DES key size?
a. 56-bit
b. 128-bit
c. 256-bit
d. 512-bit - a. 56-bit
A _____ is a function is not reversible.
a. Stream cipher
b. Asymmetric cipher
, c. Hash
d. Block Cipher - c. Hash
A 160-bit hash function that resembles earlier MD5 algorithm, designed by the NSA to be part of the
Digital Signature Algorithm.
a. SHA-1
b. MD6
c. FORK-256
d. RIPEMD-160
e. GOST
f. TIGER - a. SHA-1
A 192 bit hash function that was designed by Ross Anderson and Eli Biham in 1995.
a. SHA-1
b. MD6
c. FORK-256
d. RIPEMD-160
e. GOST
f. TIGER - f. TIGER
A cipher is defined as what
a. Any algorithm used in cryptography
b. The key used to encrypt a message
c. The algorithm(s) needed to encrypt and decrypt a message
d. Encrypted text - c. The algorithm(s) needed to encrypt and decrypt a message
A Feistel cipher with 16 rounds and a 48-bit round key for each round.
a. AES
b. DES
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