Question

In: Advanced Math

(ElGamal encryption): show how, given an encrypted message C1=E(m), it is possible to create a different...

(ElGamal encryption): show how, given an encrypted message C1=E(m), it is possible to create a different encrypted copy that will be decrypted to the same message without knowing the key that was used for the encryption.

meaning, create C2 so that D(C2)=m

Solutions

Expert Solution


Related Solutions

(Elgamal encryption): given elgamal encryption ciphersystem: a)show how can we create a new legal encryption from...
(Elgamal encryption): given elgamal encryption ciphersystem: a)show how can we create a new legal encryption from two different encryptions that we don't know their decryptions b)how can an adversary take advantage of the scheme at a) (what's written above), in order to attack a preknown encrypted text? elaborate
Using randomized encryption, convert an AES and RSA message (m) with 128 bits into a secured...
Using randomized encryption, convert an AES and RSA message (m) with 128 bits into a secured version with an initialization vector (IV). Show how to encrypt (m) with secured AES.
How is m-commerce different than e-commerce?
How is m-commerce different than e-commerce?
Question 5: How public key encryption is used to ensure confidentiality of a message. Use a...
Question 5: How public key encryption is used to ensure confidentiality of a message. Use a diagram to explain.
Given the prime factors p and​ q, the encryption exponent​ e, and the ciphertext​ C, apply...
Given the prime factors p and​ q, the encryption exponent​ e, and the ciphertext​ C, apply the RSA algorithm to find ​(a) the decryption exponent d and ​(b) the plaintext message M. p q e C 17 5 19 65 I have to get d and M
Assume p = 13, q = 7, e = 11 and message m = 46. 1)...
Assume p = 13, q = 7, e = 11 and message m = 46. 1) Can given e be suitable for public key? Give reason why. 2) Find d = e-1 if e is suitable. 3) Perform encryption on the message m using RSA algorithm. 4)Perform decryption on the ciphertext c = 56 using the RSA algorithm. 5) is c = 56, the ciphertext for the message m = 46?
please show how to solve Harvey Habit has a utility function U(c1, c2) = min{c1, c2},...
please show how to solve Harvey Habit has a utility function U(c1, c2) = min{c1, c2}, where c1 and c2 are his consumption in periods 1 and 2 respectively. Harvey earns $189 in period 1 and he will earn $63 in period 2. Harvey can borrow or lend at an interest rate of 10%. There is no inflation. a. Harvey will save $60. b. Harvey will borrow $60. c. Harvey will neither borrow nor lend. d. Harvey will save $124....
Show that if 100 people of different heights stand in a line, it is possible that...
Show that if 100 people of different heights stand in a line, it is possible that we find neither 11 people of increasing heights nor 11 people of decreasing heights (describe a counterexample) (Hint: Apply the Erdos-szekeres theorum)
Determine the number of possible electron arrangements given the following term: 4D please show how you...
Determine the number of possible electron arrangements given the following term: 4D please show how you determined the answer
Let M(x, y) be "x has sent y an e-mail message" and T(x, y) be "...
Let M(x, y) be "x has sent y an e-mail message" and T(x, y) be " x has telephoned y, " where the domain consists of all students in your class. Use quantifiers to express each of these statements. g. There is a student in your class who sent every one else in your class an email message. I answer  ∃x( x ≠ y ∧ ∀? M (x, y) ) But answer on text book is  ∃x( x ≠ y → ∀?...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT