3. The message NOT NOW (numerically 13. EIGamal system who has public key (37, 2, 18) and private keyk = 17. If the intea j used to construct the ciphertext is changed over successive four-digit blocks from j = 13 to j = 28 to j = 11, what is the encrypted message produced? OI he %D %3D %3D
3. The message NOT NOW (numerically 13. EIGamal system who has public key (37, 2, 18) and private keyk = 17. If the intea j used to construct the ciphertext is changed over successive four-digit blocks from j = 13 to j = 28 to j = 11, what is the encrypted message produced? OI he %D %3D %3D
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
Related questions
Question
Question 3
![:14. If 13 is the chosen to the
V = 225. 516 = 39 · 40 = 12 (mod 43)
to the
reply consists.
for the value d = 16 (mod 42). The digital signa
the integers Vị and V2:
Fypenba
V½ = 313 = 12 (mod 43)
PROBLEMS 10.3
forwarded to a user with public key (47, 5, 10) and private key k = 10
(a) If the random integer chosen for encryption is j
(b) Indicate how the ciphertext can be decrypted using the recipient's priv eier
2. Suppose that the following ciphertext is received by a person having ElGamal
key (71, 7, 32) and private key k = 30:
19.
%3D
(56, 45) (56, 38) (56, 29) (56, 03) (56, 67)
(56, 05) (56, 27) (56, 31) (56, 38) (56, 29)
Obtain the plaintext message.
3. The message NOT NOW (numerically 131419131422) is to be sent to a user of the
ElGamal system who has public key (37, 2, 18) and private key k = 17. If the integr
j used to construct the ciphertext is changed over successive four-digit blocks from
j = 13 to j = 28 to j = 11, what is the encrypted message produced?
Assume that a person has ElGamal public key (2633, 3, 1138) and private key k = 50.
If the person selects the random interger j = 583 to encrypt the message BEWAND
THEM, obtain the resulting ciphertext.
[Hint: 3583 = 1424 (mod 2633), 1138583 = 97 (mod 2633).]
5. (a) A person with public key (31, 2, 22) and private key k = 17 wishes to sigl an te
%3D
%3D
%3D
whose first plaintext block is B =
signature, obtain the signature produced by the ElGamal algoritnin.
(b) Confirm the validity of this signature.
%3D
%3D](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F66c7b497-dac7-4855-b923-2e60bbc73063%2Fa42cbcd3-e8ff-42b8-a502-95c82b913aaf%2Fbzhdii.jpeg&w=3840&q=75)
Transcribed Image Text::14. If 13 is the chosen to the
V = 225. 516 = 39 · 40 = 12 (mod 43)
to the
reply consists.
for the value d = 16 (mod 42). The digital signa
the integers Vị and V2:
Fypenba
V½ = 313 = 12 (mod 43)
PROBLEMS 10.3
forwarded to a user with public key (47, 5, 10) and private key k = 10
(a) If the random integer chosen for encryption is j
(b) Indicate how the ciphertext can be decrypted using the recipient's priv eier
2. Suppose that the following ciphertext is received by a person having ElGamal
key (71, 7, 32) and private key k = 30:
19.
%3D
(56, 45) (56, 38) (56, 29) (56, 03) (56, 67)
(56, 05) (56, 27) (56, 31) (56, 38) (56, 29)
Obtain the plaintext message.
3. The message NOT NOW (numerically 131419131422) is to be sent to a user of the
ElGamal system who has public key (37, 2, 18) and private key k = 17. If the integr
j used to construct the ciphertext is changed over successive four-digit blocks from
j = 13 to j = 28 to j = 11, what is the encrypted message produced?
Assume that a person has ElGamal public key (2633, 3, 1138) and private key k = 50.
If the person selects the random interger j = 583 to encrypt the message BEWAND
THEM, obtain the resulting ciphertext.
[Hint: 3583 = 1424 (mod 2633), 1138583 = 97 (mod 2633).]
5. (a) A person with public key (31, 2, 22) and private key k = 17 wishes to sigl an te
%3D
%3D
%3D
whose first plaintext block is B =
signature, obtain the signature produced by the ElGamal algoritnin.
(b) Confirm the validity of this signature.
%3D
%3D
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