QUESTION NO: 1
A 160-bit hash algorithm developed by Hans Dobbertin, Antoon Bosselaers, and Bart Preneel for which there are 128, 256 and 320-bit versions is called what?
A 160-bit hash algorithm developed by Hans Dobbertin, Antoon Bosselaers, and Bart Preneel for which there are 128, 256 and 320-bit versions is called what?
Correct Answer: B
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QUESTION NO: 2
Juanita is attempting to hide some text into a jpeg file. Hiding messages inside another medium is referred to as which one of the following?
Juanita is attempting to hide some text into a jpeg file. Hiding messages inside another medium is referred to as which one of the following?
Correct Answer: A
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QUESTION NO: 3
In relationship to hashing, the term _____refers to random bits that are used as one of the inputs to the hash. Essentially the ______ is intermixed with the message that is to be hashed
In relationship to hashing, the term _____refers to random bits that are used as one of the inputs to the hash. Essentially the ______ is intermixed with the message that is to be hashed
Correct Answer: A
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QUESTION NO: 4
Which one of the following best describes a process that splits the block of plaintext into two separate blocks, then applies the round function to one half, and finally swaps the two halves?
Which one of the following best describes a process that splits the block of plaintext into two separate blocks, then applies the round function to one half, and finally swaps the two halves?
Correct Answer: B
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QUESTION NO: 5
The reverse process from encoding - converting the encoded message back into its plaintext format.
The reverse process from encoding - converting the encoded message back into its plaintext format.
Correct Answer: B
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QUESTION NO: 6
How can rainbow tables be defeated?
How can rainbow tables be defeated?
Correct Answer: C
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QUESTION NO: 7
Collision resistance is an important property for any hashing algorithm. Joan wants to find a cryptographic hash that has strong collision resistance. Which one of the following is the most collisionresistant?
Collision resistance is an important property for any hashing algorithm. Joan wants to find a cryptographic hash that has strong collision resistance. Which one of the following is the most collisionresistant?
Correct Answer: A
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QUESTION NO: 8
Which of the following asymmetric algorithms is described by U.S. Patent 5,231,668 and FIPS 186
Which of the following asymmetric algorithms is described by U.S. Patent 5,231,668 and FIPS 186
Correct Answer: D
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QUESTION NO: 9
This algorithm was published by the German engineering firm Seimans in 1993. It is a software based stream cipher using Lagged Fibonacci generator along with a concept borrowed from the shrinking generator ciphers.
This algorithm was published by the German engineering firm Seimans in 1993. It is a software based stream cipher using Lagged Fibonacci generator along with a concept borrowed from the shrinking generator ciphers.
Correct Answer: C
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QUESTION NO: 10
Bruce Schneier is a well-known and highly respected cryptographer. He has developed several pseudo random number generators as well as worked on teams developing symmetric ciphers. Which one of the following is a symmetric block cipher designed in 1993 by Bruce Schneier team that is unpatented?
Bruce Schneier is a well-known and highly respected cryptographer. He has developed several pseudo random number generators as well as worked on teams developing symmetric ciphers. Which one of the following is a symmetric block cipher designed in 1993 by Bruce Schneier team that is unpatented?
Correct Answer: A
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QUESTION NO: 11
Which of the following are valid key sizes for AES (choose three)?
Which of the following are valid key sizes for AES (choose three)?
Correct Answer: B,D,F
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QUESTION NO: 12
Which one of the following is an algorithm that uses variable length key from 1 to 256 bytes, which constitutes a state table that is used for subsequent generation of pseudorandom bytes and then a pseudorandom string of bits, which is XORed with the plaintext to produce the ciphertext?
Which one of the following is an algorithm that uses variable length key from 1 to 256 bytes, which constitutes a state table that is used for subsequent generation of pseudorandom bytes and then a pseudorandom string of bits, which is XORed with the plaintext to produce the ciphertext?
Correct Answer: B
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