Symmetric algorithms - Study guides, Class notes & Summaries

Cryptography provides 5 basic protections, what are they? Confidentiality Integrity Availability Authentication Non-repudiation What are some Symmetric key disadvantages. Key management depends on all users to keep key secret Not easily scalable to large groups Symmetric key advantages. (List 2) Symmetric key algorithms are very fast High security especially with large key sizes Name 2 encryption methods. Block Cipher Stream Cipher _____ cipher encry...

Certified Encryption Specialist Practice Questions and Answers Latest Graded A+. The most widely used asymmetric encryption algorithm is what? +Caesar Cipher +Vigenere +RSA +DES - Answer RSA The RSA encryption algorithm is one of the most widely used public key encryption algorithms that have ever been invented. It was created by the three scientists Ronald Rivest, Adi Shamir, and Leonard Adleman in 1977, and today it is increasingly being used in the network area. Original, unencrypte...

What type of encryption uses different keys to encrypt and decrypt the message? A Symmetric B Private key C Secure D Asymmetric D The most widely used asymmetric encryption algorithm is what? A RSA B Vigenere C DES D Caesar Cipher A Original, unencrypted information is referred to as ____. A text B plaintext C cleantext D ciphertext B Which of the following is NOT an asymmetric system? A PGP B RSA C SSL D DES D In order for User A to send User B an encrypted message that only...

You are advising a non profit organization on disaster recover plans. In case a disaster affects the main IT centers for the organization, they will need to be able to operate from an alternate location. However, budget is an issue. Which of the following is most appropriate for this type of client? Warm, Cold, Shared,Hot Site Cold Site A customer requests to connect their LAN connection to the internet. Which of the following devices do yu recommend using to meet this goal? router, ...

Certified Encryption Specialist Practice Questions and Answers Latest . What type of encryption uses different keys to encrypt and decrypt the message? +Secure +Asymmetric +Private key +Symmetric - Answer Asymmetric Asymmetric cryptography, also known as public key cryptography, uses public and private keys to encrypt and decrypt data. The most widely used asymmetric encryption algorithm is what? +Caesar Cipher +Vigenere +RSA +DES - Answer RSA The RSA encryption algorithm is one of t...

WGU C839 - Introduction to Cryptography Real Exam With Complete Solutions Symmetric Block Cipher Block Size: 64 bits Key Size: 128 bits ---------- Correct Answer -------- IDEA (International Data Encryption Algorithm) Symmetric Block Cipher Block Size: 64 bit blocks Key Size: 40 to 128 bits Two versions: 128 and 256 ---------- Correct Answer -------- CAST 128/256 Symmetric Block Cipher Block Size: 128 bits Key Size: 128, 192, or 256 bits Rounds: 32 Network: Substitution-Permut...

A self-propagating malicious code that can propagate to other systems on the network and consume resources that could lead to a denial-of-service attack is called a _____. - answer-worm A computer malware code that replicates itself on the target computer and spreads through the network causing damage and distributing additional harmful payloads is called a _____. - answer-virus A program that appears to be useful or harmless but contains hidden code that can compromise the target system ...

A self-propagating malicious code that can propagate to other systems on the network and consume resources that could lead to a denial-of-service attack is called a _____. - Answerworm A computer malware code that replicates itself on the target computer and spreads through the network causing damage and distributing additional harmful payloads is called a _____. - Answervirus A program that appears to be useful or harmless but contains hidden code that can compromise the target system on ...

Which encryption standard uses the same key to encrypt and decrypt messages? -Correct Answer Symmetric Which algorithm is designated as a Type 2 product by the National Security Agency (NSA)? -Correct Answer Skipjack What is the most commonly used format for certificates? -Correct Answer X.509 v3 What is referenced to determine if a certificate has been revoked? -Correct Answer Certificate revocation list (CRL) What needs to be installed on end users' computers to allow them to tr...

"Client side" Privacy Risk - Represents computers typically used by company employees. - These computers normally connect to the company's server-side systems via wireless and hardwired networks. - Client side can represent a significant threat to the company's systems as well as sensitive data that may be on the client computers. - Employees often download customer files, corporate e-mails and legal documents to their computer for processing. - Employees may even store their personal i...