최신 212-81 무료덤프 - EC-COUNCIL Certified Encryption Specialist
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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How many qubits are needed to break RSA?
정답: C
Represents the total number of possible values of keys in a cryptographic algorithm or other security measure, such as a password.
정답: A
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The ATBASH cipher is best described as what type of cipher?
정답: C
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This is a proprietary version of PAP. Encrypts username and password as it is sent across network.
정답: B
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Which of the following statements is most true regarding binary operations and encryption?
정답: D
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____________cryptography uses one key to encrypt a message and a different key to decrypt it.
정답: B
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Which analysis type is based on the statistics of the numbers of unique colors and close-color pairs in a 24-bit image, a method that analyzes the pairs of colors created by LSB embedding?
정답: A
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The mode makes a block cipher into a synchronous stream cipher. It generates keystream blocks, which are then XORed with the plaintext blocks to get the ciphertext.
정답: C
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John is going to use RSA to encrypt a message to Joan. What key should he use?
정답: A
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Nicholas is working at a bank in Germany. He is looking at German standards for pseudo random number generators. He wants a good PRNG for generating symmetric keys. The German Federal Office for Information Security (BSI) has established four criteria for quality of random number generators. Which ones can be used for cryptography?
정답: A,B
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With Cipher feedback (CFB) what happens?
정답: D
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The next number is derived from adding together the prior two numbers (1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89).
정답: C
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If you wished to see a list of revoked certificates from a CA, where would you look?
정답: C
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RFC 1321 describes what hash?
정답: C
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Algorithm that was chosen for the Data Encryption Standard, which was altered and renamed Data Encryption Algorithm.
정답: B
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Message hidden in unrelated text. Sender and receiver have pre-arranged to use a pattern to remove certain letters from the message which leaves only the true message behind.
정답: B
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Original, unencrypted information is referred to as ____.
정답: C
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