HomeworkLib
Question

QUESTION 5 Assume Alices public key is 3,33>, and her private key is 7,33>. She wants create a digital signature for a messa
engineering   Computer-Science   
1 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

SOLUTION-

Digital signature -

S= h(m)d mod n

Given, message (m) = 19

Public key<3,33>

Private key<7,33>

d=7 , n=33

=>197 mod 33

=> 893871739 mod 33

=> 13

Digital signature = 13

IF YOU HAVE ANY DOUBT PLEASE COMMENT DOWN BELOW I WILL SOLVE IT FOR YOU:)
----------------PLEASE RATE THE ANSWER-----------THANK YOU!!!!!!!!----------

0 0
Add a comment
Know the answer?
Add Answer to:
QUESTION 5 Assume Alice's public key is 3,33>, and her private key is 7,33>. She wants...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • Bob is trying to send an encrypted message to Alice using the Asymmetric Key approach. Which...

    Bob is trying to send an encrypted message to Alice using the Asymmetric Key approach. Which key will Bob use to encrypt the message for Alice? Alice's Private Key Bob's Public Key Alice's Public Key Bob's Private Key Alice wants to digitally sign a message so that Bob can be assured that the message came from Alice and has not been changed in transit. Which key must Alice use to encrypt the message digest? Bob's Public Key Bob's Private Key...

  • 5. Alice wishes to send the message m4 to Bob using RSA encryption. She looks up Bob's public key...

    5. Alice wishes to send the message m4 to Bob using RSA encryption. She looks up Bob's public key and finds that it is (n-55. c= 3 (a) Specify exactly what information Alice sends to Bob (b) What is Bob's private key? Show how he would use it to recover Alice's message (c) Explain why Bob should never use this choice of public key in real life. 5. Alice wishes to send the message m4 to Bob using RSA encryption....

  • Using RSA Implementation: 1. Alice's RSA public key is given by (e, n) = (59, 1189)....

    Using RSA Implementation: 1. Alice's RSA public key is given by (e, n) = (59, 1189). = (a) Determine Alice's private key (d, n). (b) Bob sends his first message Mi 67 to Alice, encrypting it with RSA using Alice's public key. He obtains a cypher text Cị that gets forwarded to Alice. What is Cį? (c) Bob sends his second message M2 to Alice, encrypting it with RSA using Alice's public key. Eve, who was eavesdropping on the commu-...

  • prime factorization. Assume that zoy wants to send a message to sam. sam generates public and...

    prime factorization. Assume that zoy wants to send a message to sam. sam generates public and private keys using RSA Encryption algorithm and publishes the public key (n=4717, e=19). zoy has a secret message M to send. Nobody knows the value of M. She encrypts the message M using the public key and sends the encrypted message C=1466 to sam. alex is an intruder who knows RSA and prime factorization well. She captures the encrypted message C=1466. She also has...

  • Question 4 (5 points) Consider the following scenario: Alice wants to send Bill a message. Alice...

    Question 4 (5 points) Consider the following scenario: Alice wants to send Bill a message. Alice encrypts some information using Bill's public key; Bill decrypts the ciphertext using his private key. This is an example of: Question 4 options: 1) symmetric encryption 2) digital certificate 3) asymmetric encryption 4) digital signature

  • Suppose, Bob (the sender) wants to send a message to Alice. Before sending the message, Bob generates a digital signatur...

    Suppose, Bob (the sender) wants to send a message to Alice. Before sending the message, Bob generates a digital signature. Assume that Bob and Alice use both of the public-key cryptography system and hash function when computing digital signatures. Say, the hash function used to compute and verify signatures is insecure, but the public-key cryptography system is secure. Show that Trudy can forge signatures.

  • Suppose, Bob (the sender) wants to send a message to Alice. Before sending the message, Bob generates a digital signatur...

    Suppose, Bob (the sender) wants to send a message to Alice. Before sending the message, Bob generates a digital signature. Assume that Bob and Alice use both of the public-key cryptography system and hash function when computing digital signatures. Say, the hash function used to compute and verify signatures is insecure, but the public-key cryptography system is secure. Show that Trudy can forge signatures.

  • QUESTION 1 Bob has received Alice's public key. Which one of the following is NOT a...

    QUESTION 1 Bob has received Alice's public key. Which one of the following is NOT a step that Bob must take to process her key? O 1. Sign the key 2. Import the key into the WinPT Key Manager 3. Enter his e-mail address O 4. Verify the fingerprint for the key QUESTION 2 Bob has just installed GPG for his operating system. Which one of the following items O 1. His email address O 2. The email address of...

  • Exercise 1 (2 pts). Alice has her RSA public key (n,e) where n = 247 =...

    Exercise 1 (2 pts). Alice has her RSA public key (n,e) where n = 247 = 13·19 and e = 25. What is her secret key and what is her signature corresponding to the message M = 63? n=247=13 x 19

  • In the use of asymmetric keys (use of private-public key pairs). If a service wants to...

    In the use of asymmetric keys (use of private-public key pairs). If a service wants to ensure it is no longer their concern (after encryption) that a message would be intercepted what key would they use?

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT