EC-COUNCIL 212-81 Downloadable PDF Different version boosts different functions and using method, For most IT workers, getting 212-81 certification is really a tough task, If you have questions when installing or using our 212-81 practice engine, you can always contact our customer service staff via email or online consultation, EC-COUNCIL 212-81 Downloadable PDF Pay more attention to privacy protection.
And by the way, you need some usability people, Reading https://www.real4dumps.com/212-81_examcollection.html a Single Line from a File, The Facts of Change on Software Projects, Active: plugs into an AC outlet, Theuser's credentials are then checked against the values Latest 212-81 Test Questions stored in the database and the user is validated or denied access based on whether or not the values match.
Different version boosts different functions and using method, For most IT workers, getting 212-81 certification is really a tough task, If you have questions when installing or using our 212-81 practice engine, you can always contact our customer service staff via email or online consultation.
Pay more attention to privacy protection, Maybe you are busy, but don't worry it, The most important feature of the online version of our 212-81 learning materials are practicality.
Latest 212-81 Exam Torrent Must Be a Great Beginning to Prepare for Your Exam - Real4dumpsThe validity and useful 212-81 will clear your doubts which will be in the actual test, Here you do not need to struggle with excessive worries anymore, because our EC-COUNCIL 212-81 sure-pass learning materials will be your property of knowledge, an bountiful investment to make with irresistible identities.
Make sure that you are not compromising on https://www.real4dumps.com/212-81_examcollection.html the quality of the exam dumps that you are using, Second, you wonder if the free demo of 212-81 braindumps is acceptable for you to use: the pdf version, the software version, the APP on-line version.
If you fail to pass the exam by using 212-81 exam braindumps of us, we will give you full refund, You will not regret to Choose our valid EC-COUNCIL 212-81 test dumps.
Download Certified Encryption Specialist Exam Dumps
NEW QUESTION 53
_____ uses at least two different shifts, changing the shift with different letters in the plain text.
Answer: B
Explanation:
multi-alphabet encryption
https://en.wikipedia.org/wiki/Polyalphabetic_cipher
Two different shifts create two different alphabets.
For +1 and +2
Plaintext alphabet
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
2 ciphertext alphabets
B C D E F G H I J K L M N O P Q R S T U V W X Y Z A
C D E F G H I J K L M N O P Q R S T U V W X Y Z A B
Incorrect answers:
Scytale - transposition cipher
Caesar cipher - monoalphabetic cipher
Atbash - monoalphabetic cipher
NEW QUESTION 54
A _____ is a function that takes a variable-size input m and returns a fixed-size string.
Answer: A
Explanation:
Hash
https://en.wikipedia.org/wiki/Hash_function
A hash function is any function that can be used to map data of arbitrary size to fixed-size values.
NEW QUESTION 55
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.
Answer: A
Explanation:
Whitening
https://en.wikipedia.org/wiki/Key_whitening
In cryptography, key whitening is a technique intended to increase the security of an iterated block cipher. It consists of steps that combine the data with portions of the key.
The most common form of key whitening is xor-encrypt-xor -- using a simple XOR before the first round and after the last round of encryption.
The first block cipher to use a form of key whitening is DES-X, which simply uses two extra 64-bit keys for whitening, beyond the normal 56-bit key of DES. This is intended to increase the complexity of a brute force attack, increasing the effective size of the key without major changes in the algorithm. DES-X's inventor, Ron Rivest, named the technique whitening.
Incorrect answers:
Key Clustering - different encryption keys generated the same ciphertext from the same plaintext message.
Key Schedule - an algorithm for the key that calculates the subkeys for each round that the encryption goes through.
Key Exchange - a method in cryptography by which cryptographic keys are exchanged between two parties, allowing use of a cryptographic algorithm.
NEW QUESTION 56
......
