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EC-Council 212-81 (Certified Encryption Specialist) certification exam is designed to test the knowledge and skills of individuals in the field of encryption technologies. 212-81 exam covers a wide range of topics related to encryption, including symmetric and asymmetric encryption, digital signatures, key management, and cryptographic protocols. Certified Encryption Specialist certification is an industry-recognized credential that validates the expertise of professionals in the field of encryption, data protection, and cybersecurity.

EC-COUNCIL 212-81 CES certification exam is a proctored exam that consists of 50 multiple-choice questions. Participants have 2 hours to complete the exam, and the passing score is 70%. 212-81 exam is available in English and Japanese, and participants can take the exam at any Pearson VUE testing center worldwide.

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EC-COUNCIL 212-81 Certified Encryption Specialist (CES) certification exam is a globally recognized certification that validates the skills and knowledge of professionals in the field of encryption. Certified Encryption Specialist certification exam is designed for professionals who specialize in cryptography, security administrators, information security managers, network security engineers, and other IT professionals who are responsible for securing data.

EC-COUNCIL Certified Encryption Specialist Sample Questions (Q142-Q147):

NEW QUESTION # 142
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.

A. Diffie-Helmann
B. PKI
C. RSA
D. DES

Answer: C

Explanation:
RSA
https://en.wikipedia.org/wiki/RSA_(cryptosystem)
RSA (Rivest-Shamir-Adleman) is a public-key cryptosystem that is widely used for secure data transmission. It is also one of the oldest. The acronym RSA comes from the surnames of Ron Rivest, Adi Shamir, and Leonard Adleman, who publicly described the algorithm in 1977. An equivalent system was developed secretly, in 1973 at GCHQ (the British signals intelligence agency), by the English mathematician Clifford Cocks. That system was declassified in 1997.
Incorrect answers:
Diffie-Helmann - The first publicly described asymmetric algorithm. A cryptographic protocol that allows two parties to establish a shared key over an insecure channel. Often used to allow parties to exchange a symmetric key through some unsecure medium, such as the Internet. It was developed by Whitfield Diffie and Martin Helmann in 1976.
DES - The Data Encryption Standard is a symmetric-key algorithm for the encryption of digital data. Although its short key length of 56 bits makes it too insecure for applications, it has been highly influential in the advancement of cryptography.
Developed in the early 1970s at IBM and based on an earlier design by Horst Feistel, the algorithm was submitted to the National Bureau of Standards (NBS) following the agency's invitation to propose a candidate for the protection of sensitive, unclassified electronic government data. In 1976, after consultation with the National Security Agency (NSA), the NBS selected a slightly modified version (strengthened against differential cryptanalysis, but weakened against brute-force attacks), which was published as an official Federal Information Processing Standard (FIPS) for the United States in 1977.
PKI - A public key infrastructure is a set of roles, policies, hardware, software and procedures needed to create, manage, distribute, use, store and revoke digital certificates and manage public-key encryption. The purpose of a PKI is to facilitate the secure electronic transfer of information for a range of network activities such as e-commerce, internet banking and confidential email. It is required for activities where simple passwords are an inadequate authentication method and more rigorous proof is required to confirm the identity of the parties involved in the communication and to validate the information being transferred.

NEW QUESTION # 143
What size block does Skipjack use?

A. 0
B. 1
C. 2
D. 3

Answer: C

Explanation:
64
https://en.wikipedia.org/wiki/Skipjack_(cipher)
Skipjack uses an 80-bit key to encrypt or decrypt 64-bit data blocks. It is an unbalanced Feistel network with 32 rounds.

NEW QUESTION # 144
What is the basis for the FISH algorithm?

A. Equations that describe an ellipse
B. The Lagged Fibonacci generator
C. Prime number theory
D. The difficulty in factoring numbers

Answer: B

Explanation:
The Lagged Fibonacci generator
https://en.wikipedia.org/wiki/FISH_(cipher)
The FISH (FIbonacci SHrinking) stream cipher is a fast software based stream cipher using Lagged Fibonacci generators, plus a concept from the shrinking generator cipher. It was published by Siemens in 1993. FISH is quite fast in software and has a huge key length. However, in the same paper where he proposed Pike, Ross Anderson showed that FISH can be broken with just a few thousand bits of known plaintext.

NEW QUESTION # 145
This is a proprietary version of PAP. Encrypts username and password as it is sent across network.

A. Kerberos
B. WPA2
C. S-PAP
D. PPTP VPN

Answer: C

Explanation:
S-PAP
Shiva Password Authentication Protocol (S-PAP) - PAP with encryption for the usernames/passwords that are transmitted.
Incorrect answers:
Kerberos - a computer-network authentication protocol that works on the basis of tickets to allow nodes communicating over a non-secure network to prove their identity to one another in a secure manner. Its designers aimed it primarily at a client-server model and it provides mutual authentication-both the user and the server verify each other's identity. Kerberos protocol messages are protected against eavesdropping and replay attacks.
WPA2 - (Wi-Fi Protected Access II) security certification program developed by the Wi-Fi Alliance to secure wireless computer networks. It includes mandatory support for CCMP, an AES-based encryption mode.
PPTP VPN - works at layer 2 (data link) layer of OSI model. Provides both authentication and encryption. EAP or CHAP is used to provide the authentication for PPTP. MPPE (Microsoft Point to Point Encryption) is used to encrypt the traffic. MPPE - a specific Microsoft implementation of DES. Can only use over a traditional Ethernet network.

NEW QUESTION # 146
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?

A. Fixed length output
B. Variable length input
C. Few collisions
D. Reversible

Answer: D

Explanation:
Reversible
https://en.wikipedia.org/wiki/Hash_function
Hash functions are not reversible.
Incorrect answers:
Fixed length output and Variable length input. Hash function receive variable length input and produce fixed length output Few collisions. Every hash function with more inputs than outputs will necessarily have collisions

NEW QUESTION # 147
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EC-COUNCIL Certified Encryption Specialist Sample Questions (Q142-Q147):

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