2. Classify each of the following as a translation cipher, multiplicative cipher, or affine cipher. f(x)= 4x+7(mod 9) f(x)=x+9(mod 11) f(x) 2x(mod 5)

Q: 7. Using the Affine Cipher E11,4(x) = 11x + 4 (mod 26), encipher 'GAUSS'. Show your work.

A: Using the Affine Cipher,E11,4(x) = 11x+ 4 (mod 26),encipher 'GAUSS'.

Q: Decrypt the message ORWWPGDII which was encrypted using the affine cipher: f(p) = (11p + 5) mod 26…

A:

Q: In GF(2), find the inverse of x^3+x+1 modulo x^5+ +x^2+1. Show your complete sölution Oax^3+x…

A: For some finite field  F and fx ,gx∈Fx s.t gx≠0 On applying successive division algorithm:…

Q: Find the greatest common divisor of 26 and 7 using Euclidean algorithm. An

A: Since you have posted multiple questions according to guidelines I will answer first question for…

Q: Find the inverse of the congruence 6x = 1 (mod 29) using Euclidean algorithm. (Show your work)

A: The given problem is to solve the given modular equation by find the inverse of congruence using the…

Q: L = = (lij) and b = (b₁,...,bm), then l1,1 1,2 l2,1 12,2 l2,m -**-- lm, 1 lm, 2 lm.m Suppose Oscar…

A:

Q: - Prove that (1-e-t) n(n-¹) (set)n = (1 - e-bt) s²e2b (exp(set)]. n! n=0

A:

Q: Encrypt the message KILLTHEBEAST using shift cipher with K=18.

A: We have K=18 Now, in KILLTHEBEAST, the letters correspond to numbers in the English alphabet. K I…

Q: 4. Solve each of these congruences using the modular inverses found in the previous problem. (a) 7x…

A: The given congruence equations are (a)    7x=2 (mod 26) (b)   19x=4  (mod 141)

Q: Use the Vigen`ere cipher with key BLUE to encrypt the message SNOWFALL.

A: A =0, B =1, C =2, D = 3, E = 4, F = 5, G = 6, H = 7, I = 8, J =9, K = 10, L = 11, M = 12, N = 13, O…

Q: The message, FMULMZV, is an encrypted message using the affine cipher f (p) = (11p - 6) mod 26. Find…

A:

Q: What is the output of the given circuit? Irverter OR gate AND gate O a l-qn(qmp)]^(qvp) O b.…

A:

Q: 3. Suppose the key is 11 in a multiplicative cipher system. Fill in the chart below. (5 points each)…

A:

Q: 5. Encrypt the message WATCH YOUR STEP by translating the letters into num- bers, applying the given…

A: To encrypt the messege 'WATCH YOUR STEP'' using the encryption function  :

Q: DONT USE AI, USE PENCIL AND PAPER WHILE DOING IT. SHOW ANSWER AND RESULTS An RSA cipher has public…

A: Step 1 The given information is as follows:public key pq = 65e = 7 Step 2 (a) Encrypting the message…

Q: Encryt the message "GO." by translating the letter into number, applying the given encrytion…

A: Given: Given a message "GO" and a transfer function f(p)=(p+3) mod 26. To find: Encrypted message by…

Q: Determine, if possible, the affine cipher C = aP + b (mod 26) that sends plaintext "BI" to…

A: Introduction:  to determine the affine cipher, we need to use the values corresponding to the…

Q: Hill Cipher for m=2, then correct key is

A: This is a problem of Cryptography, Number Theory, and Modular Arithmetic. Therefore it is a problem…

Q: ONLINE STUDIES ARE GOOD

A: This is a problem of coding.

Q: Write down the (1,1) entry of [1 3 A 2 4 7

A:

Q: 36 6 10. Find the coefficient of x³6 in (x + x² + x³ + x² + x³ + x² + x² + x³) ³

A: To find the coefficient of the term x36 in the expansion of x+x2+x3+x4+x5+x6+x7+x85.

Q: An amateur cryptographer wants to encrypt the message "abcde" using two different affine ciphers.…

A: Given data; First affine cipher employs the function Second affine cipher employs the functionTo…

Q: In the use of RSA Cryptography, for the public key (11, 65), what is the decrypted original message…

A: Solution :-

Q: Which of the following is the decryption function of an RSA cryptosystem having public and private…

A: Given: Public key is: (n, e) Private key is: (n, d) To find: The decryption function of an RSA…

Q: Encryt the message "GO." by translating the letter into number, applying the given encrytion…

A: Given: Message "GO" and the transfer function f(p)=(p+3) mod 26. To find: The encrypted message.

Q: Express the Vigen`ere cipher as a cryptosystem.

A:

Q: Use the Caesar cipher (shift of 3 places) to encrypt BRAVE

A: Since, A=0               O=14B=1               P=15C=2              Q=16D=3              R=17E=4…

Q: a. Find the inverse of 31 modulo 73 b. Decrypt the following message using shift cipher: f(p) = (p+…

A: The inverse of 31 modulo 73 .

Q: 13. Let (n, e) = (16504217646971, 78893) be Alice's public key, where e represents the %3D…

A:

Q: i just need help with the last two question. im not sure on how to get the first number in the…

A: To encrypt the word "SIS" using the RSA cipher with the given public key (n, e) = (713, 43), we…

Q: Find the inverse of 9 mod 11 using Euclidean algorithm

A: In this question, we find the inverse of 9 mod 11 using the Euclidean algorithm. we use the formula…

Q: Decrypt the message "XMJQYJWNSUQFHJ"  which was encrypted with a Caesar cipher with a shift of 5 (A…

A: To decode code "XMJQYJWNSUQFHJ" using Caesar cipher with a shift of 5.

Q: |K| key space size for affine cipher over Z135

A: Consider for example For affine cipher e(x) = ax+b (mod m)1<= a,b <=26gcd(a , b) = 1For any…

Q: Determine, if possible, the affine cipher C = aP + b (mod 26) that sends plaintext "BI" to…

A:

Q: [1 0 (i) Decode the cipher text "19, 45, 26, 13, 36, 41" using A->0, B>1, .z->25 and A = 2 1 0 [1 1…

A: We have to Decode and Encode the given message.

Q: (c) How many of the elements of Z186 have multiplicative inverses?

A: To find the number of elements in the set of integers modulo 186, which have multiplicative inverse.

Q: Suppose Alice and Bob have the same RSA modulus n and suppose that their encryption exponents eд and…

A:

Q: 1. Use A¹ to decode the cryptogram 4- [33] A = 85 120 6 8 10 15 84 117 42 56 90 125 60 80 30 45 19…

A: A-1 = |A| = 8-9 = -1 A-1 = A-1 =

Q: In GF(2), find the inverse of x^3+1 modulo x^5+x^4+x^3+x+1. Show your complete solution. O a.…

A: Check one by one in module 2 and  module the given polynomial

Q: Let a, b and c a=1b=0C=9 example with enrolment number 001054321, you would take a = 0, b = 5 and c…

A: The answer to the given question is provided below with respective explanation.

Q: Recall that an affine cipher, fa,b(n) = an + b( mod 26), where a, b ∈ {0, 1, 2, . . . , 25}, is said…

A: Affine Cipher : The encryption function for a single letter is {\displaystyle E(x)=(ax+b){\bmod…

Q: An encryption function is given as f(p) = (p + y_value) mod 26 where p is the position of the input…

A: As the y_value is not mentioned, I assume it to be a prime number 7 say. The  the position of the…