최신 212-81 무료덤프 - EC-COUNCIL Certified Encryption Specialist
Which component of IPsec performs protocol-level functions that are required to encrypt and decrypt the packets?
정답: B
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What does the OCSP protocol provide?
정답: A
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Which of the following is a type of encryption that has two different keys. One key can encrypt the message and the other key can only decrypt it?
정답: B
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Cryptographic hashes are often used for message integrity and password storage. It is important to understand the common properties of all cryptographic hashes. What is not true about a hash?
정답: D
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You are explaining basic mathematics to beginning cryptography students. You are covering the basic math used in RSA. A prime number is defined as
정답: A
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A _________ is a digital representation of information that identifies you as a relevant entity by a trusted third party.
정답: B
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A type of frequency analysis used to attack polyalphabetic substitution ciphers. It's used to try to discover patterns and use that information to decrypt the cipher.
정답: A
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3DES can best be classified as which one of the following?
정답: B
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With Electronic codebook (ECB) what happens:
정답: B
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Basic information theory is the basis for modern symmetric ciphers. Understanding the terminology of information theory is, therefore, important. Changes to one character in the plaintext affect multiple characters in the ciphertext. What is this referred to?
정답: A
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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?
정답: B
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Denis is looking at an older system that uses DES encryption. A colleague has told him that DES is insecure due to a small key size. What is the key length used for DES?
정답: C
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You are studying classic ciphers. You have been examining the difference between single substitution and multi-substitution. Which one of the following is an example of a multi-alphabet cipher?
정답: B
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