Deal of The Day! Hurry Up, Grab the Special Discount - Save 25% - Ends In 00:00:00 Coupon code: SAVE25
Welcome to Pass4Success

- Free Preparation Discussions

Eccouncil 212-81 Exam Questions

Exam Name: Certified Encryption Specialist
Exam Code: 212-81 ECES
Related Certification(s): Eccouncil Certified Encryption Specialist Certification
Certification Provider: Eccouncil
Actual Exam Duration: 120 Minutes
Number of 212-81 practice questions in our database: 206 (updated: Apr. 15, 2025)
Expected 212-81 Exam Topics, as suggested by Eccouncil :
  • Topic 1: Information Theory Cryptography Concepts/ Multi-Alphabet Substitution
  • Topic 2: Introduction and History of Cryptography/ Breaking the Vigenère Cipher
  • Topic 3: Symmetric Cryptography & Hashes/ Single Substitution Weaknesses
  • Topic 4: Symmetric Block Cipher Algorithms/ Basic Facts of the Feistel Function
  • Topic 5: International Data Encryption Algorithm (IDEA)/ History of Cryptography
  • Topic 6: Number Theory and Asymmetric Cryptography/ Advanced Encryption Standard (AES)
  • Topic 7: Propagating Cipher-Block Chaining (PCBC)/ Naor-Reingold and Mersenne Twister Pseudorandom Function
  • Topic 8: Server-based Certificate Validation Protocol/ Classification of Random Number Generator
  • Topic 9: Shiva Password Authentication Protocol (S-PAP)/ Challenge-Handshake Authentication Protocol (CHAP)
  • Topic 10: Point-to-Point Tunneling Protocol (PPTP)/ National Security Agency and Cryptography
  • Topic 11: Cracking Modern Cryptography: Ciphertext-only and Related-key Attack/ Cracking Modern Cryptography: Chosen Plaintext Attack
  • Topic 12: Steganography Implementations/ Example of Symmetric Stream Ciphers: RC4
  • Topic 13: Birthday Paradox: Probability/ Mono-Alphabet Substitution
  • Topic 14: Cracking Modern Cryptography/ Example of Symmetric Stream Ciphers: PIKE
Disscuss Eccouncil 212-81 Topics, Questions or Ask Anything Related

Kaycee

24 days ago
Certified Encryption Specialist now! Pass4Success's exam prep was spot-on. Thanks for the efficient study resources.
upvoted 0 times
...

Barabara

2 months ago
EC-Council CES certification in the bag! Pass4Success's practice questions were key. Grateful for the quick turnaround.
upvoted 0 times
...

Erasmo

3 months ago
Successfully completed the CES exam! Pass4Success's questions were a perfect match. Thanks for the time-saving prep!
upvoted 0 times
...

Demetra

3 months ago
Passing the Eccouncil Certified Encryption Specialist exam was a great accomplishment, and Pass4Success practice questions played a big role. One question that stumped me was about the use of cryptographic hashes in digital signatures. I wasn't confident in my answer, but I managed to pass.
upvoted 0 times
...

Luz

4 months ago
Passed EC-Council CES! Pass4Success's exam questions were invaluable. Appreciate the focused study material.
upvoted 0 times
...

Novella

4 months ago
I recently passed the Eccouncil Certified Encryption Specialist exam, and the Pass4Success practice questions were very helpful. There was a question about how quantum computing could affect current cryptographic algorithms. I wasn't entirely sure of the answer, but I still passed.
upvoted 0 times
...

Adelina

4 months ago
The Eccouncil Certified Encryption Specialist exam was a challenging experience, but I passed thanks to Pass4Success practice questions. One question that caught me off guard was about the history of the Caesar cipher. I wasn't sure about the exact details, but I managed to pass.
upvoted 0 times
...

Maia

5 months ago
CES certified! Pass4Success's practice tests were crucial. Thanks for helping me prepare in a short timeframe.
upvoted 0 times
...

Corrie

5 months ago
I passed the Eccouncil Certified Encryption Specialist exam, and Pass4Success practice questions were instrumental in my success. There was a question about the differences between symmetric and asymmetric encryption. I was unsure about one of the key differences, but I still passed.
upvoted 0 times
...

Antione

5 months ago
The Eccouncil Certified Encryption Specialist exam was tough, but I passed with the help of Pass4Success practice questions. One question that puzzled me was about the role of prime numbers in RSA encryption. I wasn't confident in my answer, but I managed to pass.
upvoted 0 times
...

Elke

6 months ago
Aced the Certified Encryption Specialist exam! Pass4Success's questions matched the real thing. Saved me so much time!
upvoted 0 times
...

Brandon

6 months ago
I successfully passed the Eccouncil Certified Encryption Specialist exam, and the Pass4Success practice questions were a big help. There was a question about differential cryptanalysis and its effectiveness against DES. I wasn't entirely sure of the specifics, but I still passed the exam.
upvoted 0 times
...

Reuben

6 months ago
Passing the Eccouncil Certified Encryption Specialist exam was a great achievement for me, thanks to Pass4Success practice questions. One question I found difficult was about the practical applications of elliptic curve cryptography in modern systems. I wasn't sure about all the use cases, but I managed to get through the exam.
upvoted 0 times
...

Latrice

7 months ago
EC-Council CES certification achieved! Pass4Success made studying efficient. Grateful for their relevant exam materials.
upvoted 0 times
...

Buffy

7 months ago
The Eccouncil Certified Encryption Specialist exam was a challenging experience, but I made it through with the help of Pass4Success practice questions. There was a tricky question on how quantum computing could potentially break RSA encryption. I wasn't completely confident in my answer, but I still passed.
upvoted 0 times
...

Bernardine

7 months ago
Passed the exam thanks to Pass4Success! Their practice questions were spot-on and really helped me prepare efficiently. Highly recommend for anyone taking the EC-Council Certified Encryption Specialist exam.
upvoted 0 times
...

Nydia

7 months ago
I recently passed the Eccouncil Certified Encryption Specialist exam, and the Pass4Success practice questions were incredibly helpful. One question that stumped me was about the historical significance of the Enigma machine in cryptography. I wasn't entirely sure about the exact year it was first used, but I managed to pass the exam nonetheless.
upvoted 0 times
...

Tamra

8 months ago
Just passed the EC-Council CES exam! Pass4Success's practice questions were spot-on. Thanks for the quick prep!
upvoted 0 times
...

Gracia

9 months ago
Passed the CES exam today! Public key infrastructure (PKI) was a major focus. Questions on digital certificate lifecycle and revocation processes came up. Make sure to grasp CRL and OCSP concepts thoroughly. Pass4Success practice exams were invaluable for quick preparation.
upvoted 0 times
...

Tanja

9 months ago
My experience taking the Eccouncil Certified Encryption Specialist exam was challenging yet rewarding. With the assistance of Pass4Success practice questions, I was able to successfully navigate through topics like Introduction and History of Cryptography. One question that I remember from the exam was about breaking the Vigen?re Cipher, where I had to demonstrate my understanding of how to crack the encryption method. Despite some uncertainty, I was able to pass the exam.
upvoted 0 times
...

Gearldine

9 months ago
CES exam success! Cryptographic hash functions were heavily featured. Be prepared for questions on collision resistance and the properties of different hash algorithms. Understanding SHA family differences is crucial. Pass4Success really helped me prepare efficiently.
upvoted 0 times
...

Barney

10 months ago
CES certification achieved! Pass4Success's exam questions were crucial for my success. Couldn't have done it without you!
upvoted 0 times
...

Rory

10 months ago
I recently passed the Eccouncil Certified Encryption Specialist exam with the help of Pass4Success practice questions. The exam covered topics such as Information Theory Cryptography Concepts and Breaking the Vigen?re Cipher. One question that stood out to me was related to multi-alphabet substitution, where I had to decipher a message using a specific key. Despite being unsure of my answer, I managed to pass the exam.
upvoted 0 times
...

Berry

10 months ago
Successfully cleared the Certified Encryption Specialist exam. Pass4Success's practice tests were a game-changer. Much appreciated!
upvoted 0 times
...

Arminda

11 months ago
Just passed the EC-Council CES exam! A key topic was symmetric encryption algorithms. Expect questions on block cipher modes like ECB vs CBC. Study the strengths and weaknesses of each mode. Thanks to Pass4Success for the spot-on practice questions!
upvoted 0 times
...

Henriette

11 months ago
Passed the EC-Council CES exam with flying colors. Pass4Success's relevant questions made all the difference. Thank you!
upvoted 0 times
...

Alverta

11 months ago
Ecstatic to have passed the Certified Encryption Specialist exam. Pass4Success's materials were invaluable for last-minute prep. Grateful!
upvoted 0 times
...

Lindsey

11 months ago
Just passed the EC-Council CES exam! Pass4Success's practice questions were spot-on. Thanks for helping me prepare quickly!
upvoted 0 times
...

Free Eccouncil 212-81 Exam Actual Questions

Note: Premium Questions for 212-81 were last updated On Apr. 15, 2025 (see below)

Question #1

Which of the following statements is most true regarding binary operations and encryption?

Reveal Solution Hide Solution
Correct Answer: C

They can form a part of viable encryption methods

for example - https://en.wikipedia.org/wiki/XOR_cipher

The XOR operator is extremely common as a component in more complex ciphers. By itself, using a constant repeating key, a simple XOR cipher can trivially be broken using frequency analysis. If the content of any message can be guessed or otherwise known then the key can be revealed. Its primary merit is that it is simple to implement, and that the XOR operation is computationally inexpensive. A simple repeating XOR (i.e. using the same key for xor operation on the whole data) cipher is therefore sometimes used for hiding information in cases where no particular security is required. The XOR cipher is often used in computer malware to make reverse engineering more difficult.


Question #2

In steganography, ________ is the data to be covertly communicated (in other words, it is the message you wish to hide).

Reveal Solution Hide Solution
Correct Answer: C

Payload

https://en.wikipedia.org/wiki/Steganography

The payload is the data covertly communicated. The carrier is the signal, stream, or data file that hides the payload, which differs from the channel, which typically means the type of input, such as a JPEG image. The resulting signal, stream, or data file with the encoded payload is sometimes called the package, stego file, or covert message. The proportion of bytes, samples, or other signal elements modified to encode the payload is called the encoding density and is typically expressed as a number between 0 and 1.


Question #3

Which of the following would be the fastest.

Reveal Solution Hide Solution
Correct Answer: D

AES

https://en.wikipedia.org/wiki/Symmetric-key_algorithm

AES - symmetric cipher. Symmetric keys use the same key for both encryption and decryption. Both the sender and receiver of the data must know and share the secret key. For standard encrypt/decrypt functions, symmetric algorithms generally perform much faster than their asymmetrical counterparts. This is due to the fact that asymmetric cryptography is massively inefficient. Symmetric cryptography is designed precisely for the efficient processing of large volumes of data. In other words, symmetric encryption is generally used for speed and performance, e.g. when there's a large amount of data that needs to be encrypted/protected.

Incorrect answers:

RSA - asymmetric cipher,

DH - Diffie--Hellman key exchange is a method of securely exchanging cryptographic keys over a public channel and was one of the first public-key protocols as conceived by Ralph Merkle and named after Whitfield Diffie and Martin Hellman.

EC - Elliptic-curve cryptography (ECC) is an approach to public-key cryptography based on the algebraic structure of elliptic curves over finite fields.


Question #4

Hash. Created by Ronald Rivest. Replaced MD4. 128 bit output size, 512 bit block size, 32 bit word size, 64 rounds. Infamously compromised by Flame malware in 2012.

Reveal Solution Hide Solution
Correct Answer: B

MD5

https://en.wikipedia.org/wiki/MD5

The MD5 message-digest algorithm is a widely used hash function producing a 128-bit hash value. Although MD5 was initially designed to be used as a cryptographic hash function, it has been found to suffer from extensive vulnerabilities. It can still be used as a checksum to verify data integrity, but only against unintentional corruption. It remains suitable for other non-cryptographic purposes, for example for determining the partition for a particular key in a partitioned database.

MD5 was designed by Ronald Rivest in 1991 to replace an earlier hash function MD4, and was specified in 1992 as RFC 1321

Incorrect answers:

TIGER - hash. Created by Ross Anderson and Eli Baham. 192/160/128 bit output size, 512 bit block size, 53 bit word size, 24 rounds.

SHA-1 - Secure Hashing Algorithm. Designed by NSA. 160 bit output size, 512 bit block size, 40 bit word size, 80 rounds.

Keccak - SHA-3 (Secure Hash Algorithm 3) is the latest member of the Secure Hash Algorithm family of standards, released by NIST on August 5, 2015. SHA-3 is a subset of the broader cryptographic primitive family Keccak, designed by Guido Bertoni, Joan Daemen, Michal Peeters, and Gilles Van Assche, building upon RadioGatn.


Question #5

What is a salt?

Reveal Solution Hide Solution
Correct Answer: D

Random bits intermixed with a hash to increase randomness and reduce collisions

https://en.wikipedia.org/wiki/Salt_(cryptography)

Salt is random data that is used as an additional input to a one-way function that hashes data, a password or passphrase. Salts are used to safeguard passwords in storage. Historically a password was stored in plaintext on a system, but over time additional safeguards were developed to protect a user's password against being read from the system. A salt is one of those methods.

Incorrect answers:

Key whitening - 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.

Key rotation - is when you retire an encryption key and replace that old key by generating a new cryptographic key. Rotating keys on a regular basis help meet industry standards and cryptographic best practices.

Random bits intermixed with a symmetric cipher to increase randomness and make it more secure -- Initialization Vector (IV)



Unlock Premium 212-81 Exam Questions with Advanced Practice Test Features:
  • Select Question Types you want
  • Set your Desired Pass Percentage
  • Allocate Time (Hours : Minutes)
  • Create Multiple Practice tests with Limited Questions
  • Customer Support
Get Full Access Now

Save Cancel