Quiz_________________?
___ takes output of the XOR process vs from the cipher stage of the previous block -
Answer✅
CFB (difference between CFB and OFB).
Quiz_________________?
____ is a Key Derivation Function defined in RFC 2898 that generates a salted hash. It is
often used to create an encryption key from a defined password, and where it is not
possible to reverse the password from the hashed value. -
Answer✅
PBKDF2
Quiz_________________?
_____ is the largest positive integer that divides into two numbers without a remainder. -
Answer✅
GCD - Greatest Common Divisor
Quiz_________________?
________ is a polyalphabetic cipher that employs an improved code over the scrambled
alphabet approach, where a different mapping, based on a keyword, is used for each
character of the cipher. -
1
, Answer✅
Vigenère cipher
Quiz_________________?
________ provides a cryptography method to give a verifiable method that a data entity
was created at a defined time. -
Answer✅
TSP - Time Stamp Protocol
Quiz_________________?
16 bit value, up to 65,536 characters -
Answer✅
UTF-16
Quiz_________________?
5 × 5 matrix containing the alphabet less the letter J. Cipher/decipher process consists of a
set of rules outlining use of column and row combinations. -
Answer✅
Playfair
Quiz_________________?
8 bit value, up to 256 characters -
Answer✅
ASCII
Quiz_________________?
A ___ attack on a hash can take advantage of similar content, or instances where part of the
message has some significance to the original, and generates the same hash signature. -
Answer✅
2
, Pre-Image
Quiz_________________?
A ____ generates a true random number, and uses some form of random process. One
approach is to monitor the movements of a mouse pointer on a screen or from the pauses
between keystrokes. Overall the method is generally slow, especially if it involves human
interaction, but is non-deterministic and aperiodic. -
Answer✅
True random number generator (TRNG)
Quiz_________________?
A ____ repeats a random number after a given time (periodic). They are fast and are also
deterministic, and are useful in producing a repeatable set of random numbers. -
Answer✅
Pseudo-random number generator (PRNG)
Quiz_________________?
addresses the problems of brute forcing an MD5 hash, and basically iterates the hash value
1,000 times -
Answer✅
Apache-defined APR1
Quiz_________________?
AES is capable of operating with keys of varying sizes. Which key sizes from the list below is
AES capable of using? Select 3. -
Answer✅
192
128
256
3
___ takes output of the XOR process vs from the cipher stage of the previous block -
Answer✅
CFB (difference between CFB and OFB).
Quiz_________________?
____ is a Key Derivation Function defined in RFC 2898 that generates a salted hash. It is
often used to create an encryption key from a defined password, and where it is not
possible to reverse the password from the hashed value. -
Answer✅
PBKDF2
Quiz_________________?
_____ is the largest positive integer that divides into two numbers without a remainder. -
Answer✅
GCD - Greatest Common Divisor
Quiz_________________?
________ is a polyalphabetic cipher that employs an improved code over the scrambled
alphabet approach, where a different mapping, based on a keyword, is used for each
character of the cipher. -
1
, Answer✅
Vigenère cipher
Quiz_________________?
________ provides a cryptography method to give a verifiable method that a data entity
was created at a defined time. -
Answer✅
TSP - Time Stamp Protocol
Quiz_________________?
16 bit value, up to 65,536 characters -
Answer✅
UTF-16
Quiz_________________?
5 × 5 matrix containing the alphabet less the letter J. Cipher/decipher process consists of a
set of rules outlining use of column and row combinations. -
Answer✅
Playfair
Quiz_________________?
8 bit value, up to 256 characters -
Answer✅
ASCII
Quiz_________________?
A ___ attack on a hash can take advantage of similar content, or instances where part of the
message has some significance to the original, and generates the same hash signature. -
Answer✅
2
, Pre-Image
Quiz_________________?
A ____ generates a true random number, and uses some form of random process. One
approach is to monitor the movements of a mouse pointer on a screen or from the pauses
between keystrokes. Overall the method is generally slow, especially if it involves human
interaction, but is non-deterministic and aperiodic. -
Answer✅
True random number generator (TRNG)
Quiz_________________?
A ____ repeats a random number after a given time (periodic). They are fast and are also
deterministic, and are useful in producing a repeatable set of random numbers. -
Answer✅
Pseudo-random number generator (PRNG)
Quiz_________________?
addresses the problems of brute forcing an MD5 hash, and basically iterates the hash value
1,000 times -
Answer✅
Apache-defined APR1
Quiz_________________?
AES is capable of operating with keys of varying sizes. Which key sizes from the list below is
AES capable of using? Select 3. -
Answer✅
192
128
256
3
