Triple des - 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...

ch4 3DES, AES, and Modes of Operation Exam Questions 2024. Multiple Encryption - correct answer the process of encrypting an already encrypted message one or more times Double DES - correct answer The simplest form of multiple encryption has two encryption stages and two keys Given the potential vulnerability of DES to a brute-force attack, what are the alternatives? - correct answer - design a new algorithm AES for example - to use multiple encryption with DES and multiple keys. doub...

Name all OSI layers - THE CORRECT ANSWER IS Application, Presentation, Session, Transport, Network, Data Link, Physical. Name all TCP/IP layers - THE CORRECT ANSWER IS Application, Transport, internet, Network Access. Name Four TCP head flags - THE CORRECT ANSWER IS ACK, FIN, SYN, URG, PSH, RST Which layer does HTTP protocl reside in the OSI model. - THE CORRECT ANSWER IS Layer 7, Application. Which layer does Ethernet reside in the OSI model. - THE CORRECT ANSWER IS Layer 2, Data li...

IT 279 UNIT 4 ASSIGNMENT 2 1. Which statement is true of symmetric cryptography? A. Symmetric cryptography is faster than asymmetric cryptography. B. Symmetric cryptography uses different keys to encrypt and decrypt messages. C. Symmetric cryptography does not require a secure mechanism to properly deliver keys. “The major strength of symmetric key cryptography is the great speed at which it can operate. Symmetric key encryption is very fast, often 1,000 to 10,000 times faster than asym...

Introduction to Cryptography - C839 - ECES EC-Council Certified Encryption Specialist Practice Exam Already Passed 1. How did the ATBASH cipher work? By substituting each letter for the letter from the opposite end of the alphabet (i.e. Abecomes Z, B becomes Y, etc.) 2. DES has a key space of what? 2^56 3. Which of the following are valid key sizes for AES (choose three)? c. 128 d. 192 e. 256 4. Which of the following algorithms uses three different keys to encrypt the plain text? 3DES...

Key stretching - A technique used to increase the computational effort required to derive keys from a password. Bcrypt - A cryptographic algorithm that generates hashes from passwords using the Blowfish cipher. PBKDF2 - A key derivation function that is part of the RSA public key cryptography standards. Elliptic Curve Cryptography (ECC) - A public-key cryptographic system based on the mathematics of elliptic curves. Perfect Forward Secrecy (PFS) - A property that ensures the confiden...

ch4 3DES, AES, and Modes of OperationMultiple Encryption - correct answer the process of encrypting an already encrypted message one or more times Double DES - correct answer The simplest form of multiple encryption has two encryption stages and two keys Given the potential vulnerability of DES to a brute-force attack, what are the alternatives? - correct answer - design a new algorithm AES for example - to use multiple encryption with DES and multiple keys. double DES strengths? - cor...

Introduction to Cryptography - C839 - ECES EC-Council Certified Encryption Specialist Practice Exam Already Passed 1. How did the ATBASH cipher work? By substituting each letter for the letter from the opposite end of the alphabet (i.e. Abecomes Z, B becomes Y, etc.) 2. DES has a key space of what? 2^56 3. Which of the following are valid key sizes for AES (choose three)? c. 128 d. 192 e. 256 4. Which of the following algorithms uses three different keys to encrypt the plain text? 3DES Tripl...

ntroduction to Cryptography - C839 - ECES EC-Council Certified Encryption Specialist Practice Exam Already Passed 1. How did the ATBASH cipher work? By substituting each letter for the letter from the opposite end of the alphabet (i.e. Abecomes Z, B becomes Y, etc.) 2. DES has a key space of what? 2^56 3. Which of the following are valid key sizes for AES (choose three)? c. 128 d. 192 e. 256 4. Which of the following algorithms uses three different keys to encrypt the plain text? 3DES ...

Fixed Single Master Operations Flexible Security Master Operations Flexible Single Master Operations Forest Single Master Operations Forest Security Master Operations Flexible Single Master Operations The active directory database file is: - ANSWER NTDS.DAT NTDS.MDB MSAD.DIT NTDS.DIT MDAD.MDB NTDS.DIT What command might you use to obtain a list of systems from a master browser, together with details about the version and available services. - ANSWER amap nbtstat lservers nbtquery hping3 ls...