Which of the following statements about encryption is FALSE?
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- Question 13 sum .Which of the following statements is the closest to reality? A. There is mathematical proof that modern cryptographic systems cannot be broken. B. Messages encrypted with modern cryptographic systems may be broken given enough . time. C. An attacker can easily decrypt and read cipher text if they know which cryptographic system was used to encrypt the message. D. All of the statements are equally true. Full explain this question and text typing work only We should answer our question within 2 hours takes more time then we will reduce Rating Dont ignore this line1. Suppose that we use a substitution cipher to encrypt an English word, from which we obtain the ciphertext is “AUXXME”. Which of the following words is possibly the plaintext? (Hint: In a substitution cipher, we replace each letter of the plaintext with another letter) A. greedy B. funny C. secret D. cheese 2. Which of the following statements are incorrect? A. Cryptographic systems tend to involve both an algorithm and a secret value. B. To secure systems, it is more efficient to update algorithms than updating keys. C. Often a scheme can be made more secure by making the key longer. D. We can always change the key length to better secure systems, no matter using which cryptographic algorithms. E. In a secret-key cryptosystem, secret keys can be used for both encryption and decryption. 3. Which of the following statements are incorrect about a cryptographical hash function? A. The input size can be arbitrary and the output size is fixed B. Given the input, the output should…please try to understand the question and provide the correct answer i will give thumb up (like) if your answer is correct and suitable I NEED A VERY GOOD ANSWER AND GOOD EXPLAINITION....I ALREADY POSTED THIS QUESTION BUT NOW I MAKE EASY FOR IT PLZ HELP ME WITH THIS ASAP RSA (Rivest–Shamir–Adleman) and AES (Advanced Encryption Standard) are two different types of ciphers. You are now given two large primes, p and q, a cryptographic hash function H(x).a) DESCRIBE the RSA algorithm. In your description, you should make clear how RSA keys are generated, how a message is encrypted and how a cipher text is decrypted.
- Explain the suitability or unsuitability of the following passwords: • a. YK 334 • b. mfmitm (for “my favorite movie is tender mercies) • c. Natalie1 • d. Washington • e. Aristotle • f. tv9stove • g. 12345678 • h. dribgibWhich of the following is wrong? (a) Symmetric encryption algorithms are faster than asymmetric encryption algorithms. (b) Symmetric encryption is not scalable. (c) Asymmetric encryption offers e-signature. (d) Secure key distribution in asymmetric encryption algorithms is even more difficult than in symmetric encryption algorithms.Question # 1: Use the Multiplicative Cipher method to encrypt the following plaintext:We will succeed in our ventureKey length K = 7 WRITE A mathematical solution NOT A COMPUTER PROGRAM
- Eve gains access to sender’s PC for a brief period of time. She encrypts her plain text using the 2 algorithms in the PC and obtains the following answersAlgorithm 1 -> Input: WR; Output: JSAlgorithm 2 -> Input: ET; Output: WCUsing the given scenario answer the following questions:i. Name and exemplify on the attack launched.ii. Which amongst the two algorithms gives the ideal keypair for Affine cipher? Justifyiii. Decrypt the message “DHBDUEKDSMVFHS” using the ideal keypair obtained above by employing Affine cipher.Suppose Alice and Bob store their RSA public keys in a file on a server. Theycommunicate regularly using authenticated and confidential messages. Eve wants to readthe messages but is unable to crack the RSA private keys of Alice and Bob. However, Eve canbreak into the server and alter the file containing Alice’s and Bob’s public keys.a. How should Eve alter that file so that she can read confidential messages sent fromBob to Alice?b. How might Alice and/or Bob detect Eve’s subversion of the public keys?Please make it readable and clear if you will write it so that i can understand the answers. Thank you 1. State the simple algorithm of Encryption through the following operations: Authentication: Integrity: Nonrepudiation:
- Question 5 . List the encryption function for the following: a. Caesar Cipher b. Asymmetric Encryption c. RSA encryption d. "One Time Pad" cipher Full explain this question and text typing work only thanksLet 1 = (Gen1;Enc1;Dec1) and 2 = (Gen2;Enc2;Dec2) be two encryption schemes for which it is knownthat only one is CPA-secure. The problem is that you don't know which one is CPA-secure and which onemay not be. Show how can we identify if 1 or 2 is CPA secure.Question 4a) Demonstrate with the use of simple python line codes on how to: (i) encrypt and (ii) decrypt a sensitive message b)The statement: “While some breaches are accidental, many are intentional”. It is however very challenging sometimes to establish in investigation processes about accidental and intentional breaches. As an assumed security officer of your company explain some outlines that properly classify accidental security and intentional. c) In determining if your computer is vulnerable to an Internet or network attack, you could use an online security service, which is a Web site that evaluates your computer to check for Internet and e-mail vulnerabilities. What would be the reaction of a company to use online network service solution for vulnerability checks.