Asymmetric encryption method developed in 1984. It is used in PGP implementations and GNU Privacy Guard Software. Consists of 3 parts: key generator, encryption algorithm, and decryption algorithm.
A. GOST
B. ElGamal
C. RIPEMD
D. Tiger
正解:B
解説: (Pass4Test メンバーにのみ表示されます)
質問 2:
A ______ refers to a situation where two different inputs yield the same output.
A. Convergence
B. Transposition
C. Substitution
D. Collision
正解:D
解説: (Pass4Test メンバーにのみ表示されます)
質問 3:
Which one of the following wireless standards uses AES using the Counter Mode-Cipher Block Chaining (CBC)-Message Authentication Code (MAC) Protocol (CCMP)?
A. WEP2
B. WEP
C. WPA2
D. WPA
正解:C
質問 4:
If the round function is a cryptographically secure pseudorandom function, then ___rounds is sufficient to make it a "strong" pseudorandom permutation.
A. 4
B. 16
C. 3
D. 15
正解:A
解説: (Pass4Test メンバーにのみ表示されます)
質問 5:
You are explaining the details of the AES algorithm to cryptography students. You are discussing the derivation of the round keys from the shared symmetric key. The portion of AES where round keys are derived from the cipher key using Rijndael's key schedule is called what?
A. The round key phase
B. The key expansion phase
C. The bit shifting phase
D. The initial round
正解:B
解説: (Pass4Test メンバーにのみ表示されます)
質問 6:
Which of the following would be the weakest encryption algorithm?
A. RSA
B. DES
C. EC
D. AES
正解:B
解説: (Pass4Test メンバーにのみ表示されます)
質問 7:
What is the name of the attack where the attacker obtains the ciphertexts corresponding to a set of plaintexts of his own choosing?
A. Chosen plaintext
B. Kasiski examination
C. Differential cryptanalysis
D. Known-plaintext attack
正解:A
解説: (Pass4Test メンバーにのみ表示されます)
質問 8:
How did the ATBASH cipher work?
A. By rotating text a given number of spaces
B. By Multi alphabet substitution
C. By shifting each letter a certain number of spaces
D. By substituting each letter for the letter from the opposite end of the alphabet (i.e. A becomes Z, B becomes Y, etc.)
正解:D
解説: (Pass4Test メンバーにのみ表示されます)
質問 9:
Calculates the average LSB and builds a table of frequencies and Pair of Values. Performs a test on the two tables. It measures the theoretical vs. calculated population difference.
A. Chi-Square Analysis
B. Raw Quick Pair
C. Certificate Authority
D. SP network
正解:A
解説: (Pass4Test メンバーにのみ表示されます)
Kirisya -
212-81問題集の的中率は想像以上に高いです。212-81問題集のおかげで,212-81資格証明書を取りました。今後も是非212-81問題集を選びます。