Question: When using the one - time pad with the key k = 0 l , we have Enck ( m ) = k m and

When using the one-time pad with the key k =0l, we have Enck(m)= k m and the message is sent in the clear! It has therefore been suggested to modify the one-time pad by only encrypting with k 0l (i.e., to have Gen choose k uniformly from the set of nonzero keys of length l). Is this modified scheme still perfectly secret? Explain.
When using the one - time pad with the key k = 0

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Programming Questions!

Q:

When using the l-bit one-time pad with the key k = 0' (here, o denotes the l-bit string where every bit is 0, i.e., O' = 00...0), it follows that Enc (m) = kom= m and the message is l times...

Q:

When using the one-time pad with the key k= 0', we have Enck(m) = kom = m and the message is sent in the clear! It has therefore been suggested to modify the one-time pad by only encrypting with k #...

Q:

Based on slide 9, complete the computation of probability of "PrP (a|3),PrP (b|3),PrP (a|4),PrP (a|4)." Is the Shift Cipher perfectly secret? Using the probability to prove it. When using the...

Q:

2.7 When using the one-time pad with the key k = 0, we have Enck (m) = km = m and the message is sent in the clear! It has therefore been suggested to modify the one-time pad by only encrypting with...

Q:

1. Use substitution cipher with k=8 to encrypt the following string: Four score and seven years ago our fathers brought forth on this continent a new nation conceived in Liberty and dedicated to the...

Q:

1. (15 Points) There is nothing exclusively special about strings and XOR in one-time pad. We can get the same properties using integers mod n and addition mod n. This problem considers a variant of...

Q:

how to solve this problems in cryptography? Problems 1. (15 Points) There is nothing exclusively special about strings and XOR in one-time pad. We can get the same properties using integers mod n and...

Q:

clear text and writes the clear text to a file (make sure to use a different file name than the original file so you can compare the results) Part 2: One Time Pad Encryption One Time Pad (OTP)...

Q:

Code from Part 1: void read_file(){ FILE *file = fopen("myfile.txt", "r"); //Opens file to read char c = fgetc(file); int cnt = 0; while((c = fgetc(file)) != EOF) cnt++; printf("%d chars ", cnt);...

Q:

(1) Consider the extension of the One-time Pad cipher, where a ciphertext c is possibly longer than the plaintext m (and the key k) by one bit, namely, by having the encryption algorithm Enc...

Q:

a. Calculate the molar solubility of AgBr in pure water. Ksp for AgBr is 5.0 X 10-13. b. Calculate the molar solubility of AgBr in 3.0 M NH3. The overall formation constant for Ag(NH3)2+ is 1.7 X...

Q:

Imagine that youre an intern for the law firm Dewey, Wright, and Howe. As part of a team, youre developing an Orientation Plan for future interns. Your team receives the email on the next page from...

Q:

Car purchases usually require financing through a a . loan. b . lease. c . neither a or b is correct d . both If and b are correct

Q:

The long run aggregate supply curve is perfectly vertical in the AD-AS model. Describe why it is vertical