최신EC-COUNCIL Certified Encryption Specialist - 212-81무료샘플문제
문제1
With Electronic codebook (ECB) what happens:
With Electronic codebook (ECB) what happens:
정답: B
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문제2
With Cipher feedback (CFB) what happens?
With Cipher feedback (CFB) what happens?
정답: B
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문제3
In steganography, ________ is the data to be covertly communicated (in other words, it is the message you wish to hide).
In steganography, ________ is the data to be covertly communicated (in other words, it is the message you wish to hide).
정답: A
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문제4
The most widely used digital certificate standard. First issued July 3, 1988. It is a digital document that contains a public key signed by the trusted third party, which is known as a Certificate Authority, or CA.
Relied on by S/MIME. Contains your name, info about you, and a signature of a person who issued the certificate.
The most widely used digital certificate standard. First issued July 3, 1988. It is a digital document that contains a public key signed by the trusted third party, which is known as a Certificate Authority, or CA.
Relied on by S/MIME. Contains your name, info about you, and a signature of a person who issued the certificate.
정답: B
설명: (ExamPassdump 회원만 볼 수 있음)
문제5
Created in 1977 by Ron Rivest, Adi Shamir, and Leonard Adleman at MIT. Most widely used public key cryptography algorithm. Based on relationships with prime numbers. This algorithm is secure because it is difficult to factor a large integer composed of two or more large prime factors.
Created in 1977 by Ron Rivest, Adi Shamir, and Leonard Adleman at MIT. Most widely used public key cryptography algorithm. Based on relationships with prime numbers. This algorithm is secure because it is difficult to factor a large integer composed of two or more large prime factors.
정답: C
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문제6
A part of understanding symmetric cryptography understands the modes in which it can be used. You are explaining those modes to a group of cryptography students. The most basic encryption mode is____________.
The message is divided into blocks, and each block is encrypted separately with no modification to the process.
A part of understanding symmetric cryptography understands the modes in which it can be used. You are explaining those modes to a group of cryptography students. The most basic encryption mode is____________.
The message is divided into blocks, and each block is encrypted separately with no modification to the process.
정답: A
문제7
What is the name of the attack where the attacker obtains the ciphertexts corresponding to a set of plaintexts of his own choosing?
What is the name of the attack where the attacker obtains the ciphertexts corresponding to a set of plaintexts of his own choosing?
정답: D
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문제8
What is an IV?
What is an IV?
정답: B
문제9
A technique used to increase the security of block ciphers. It consists of steps that combine the data with portions of the key (most commonly using a simple XOR) before the first round and after the last round of encryption.
A technique used to increase the security of block ciphers. It consists of steps that combine the data with portions of the key (most commonly using a simple XOR) before the first round and after the last round of encryption.
정답: C
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문제10
Which of the following is an asymmetric cipher?
Which of the following is an asymmetric cipher?
정답: C
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문제11
What is the formula m^e %n related to?
What is the formula m^e %n related to?
정답: D
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