Which of the following statement is True? In reality, RSA is used to encrypt the symmetric key O In RSA, the public key and private key are identical Given that Bob's public key is available online, Bob will use his public key to generate digital signature O In RSA, if we use the private key to encrypt the data, then it is not possible to use the public key to decrypt it t get the original data In reality, RSA is used to encrypt the actual data exchanged between a sender and a receiver

Which of the following statement is True? In reality, RSA is used to encrypt the symmetric key O In RSA, the public key and private key are identical Given that Bob's public key is available online, Bob will use his public key to generate digital signature O In RSA, if we use the private key to encrypt the data, then it is not possible to use the public key to decrypt it t get the original data In reality, RSA is used to encrypt the actual data exchanged between a sender and a receiver

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

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Similar questions

Alice uses RSA to send a key to Bob for use in encryption of future messages. The key is the word "CINEMA" and the encoding from letters to numbers is done using the ASCII: A = 65... Z = 90, space = 99. The public parameters (n, e) = (9379, 11) are shared. Encrypt Alice's key word, using 2-letter blocks. Please show work.
In RSA encryption, if the public key is 299, what is the private key? (Enter your answers as a comma-separated list.)
Decode the number using the given private key. Decode the number M = 15 using the private key d = 53 and n = 77. Assume you are decoding the number using the RSA cryptosystem. Note: You can use the Modular Exponentiation calculator to help with the calculation. a 63 (mod 77), decoded number = 63 b 64 (mod 77), decoded number = 64 C 65 (mod 77), decoded number = 65 d. 66 (mod 77), decoded number = 66
Which of the following statement is True? Given that Bob's public key is available online, Bob will use his public key to generate digital signature In reality, RSA is used to encrypt the actual data exchanged between a sender and a receiver In reality, RSA is used to encrypt the symmetric key In RSA, if we use the private key to encrypt the data, then it is not possible to use the public key to decrypt it to get the original data In RSA, the public key and private key are identical
Alice sends a message to Bob, along with a digital signature created by encrypting a hash of the message. Which key did Alice use to encrypt the hash? Why is that the appropriate key? Which key will Bob use to verify the digital signature? Why is that the appropriate key?
Suppose your RSA public key is PK: {n, e} = {13861, 37}. Your friend sends you a ciphertext C = 9908. But unfortunately you have forgotten your private key, now you have to crack it yourself.a) Write down a possible condition of factors p and q.p= q=b) What is your private key SK: {d}?d=c) What is the plaintext of your friend’s message?The plaintext M =d) Suppose the plaintext M is a 12-digit number consisting of a prefix “19” and 1234567890. What is the corresponding ciphertext? Since M is greater than n, you only need to encrypt four digits at a time. Ignore redundant zeros. e.g., 0001 = 1. The result should contain three integers.The ciphertext C0 =
Why do we usually use hybrid encryption instead of public key encryption alone? a. symmetric key encryption is too slow to encrypt long messages directly b. symmetric key encryption solves the private key distribution problem C. all of the statements are correct d. public key encryption is too slow to encrypt long messages directly
Can you please show the shifts for the encrypt & decrypt in this format? For example, like this : Example:ABCDEFGHIJKLMNOPQRSTUVWXYZ Row 1FGHIJKLMNOPQRSTUVWXYZABCDE Row 2 If the plaintext to encrypt is:THIS IS THE ANSWER The ciphertext becomes:YMNX NX YMJ FSXBJW This is for me to help understand and to redo the problem for studying. Thank you!!
The following text has been encoded using the affine cipher with key "9x+3". (That is, multiplying the letter by 9 and add 3 (mod 26) to encode.) For example, the encryption result of letter "A" is "D". Decrypt the following ciphertext. GNVBAXSL XG QWB
Decode the number using the given private key. Decode the number M = 15 using the private key d = 53 and n= 77. Assume you are decoding the number using the RSA cryptosystem. Note: You can use the Modular Exponentiation calculator to help with the calculation.
Alice and Bod have decided to use a symmetric encryption algorithm. They have some assumptions about their messages:- Messages only contain capital letters (i.e. A to Z)- The length of their shared key must be greater than or equal to the length of the plaintext- They assign each letter a number as follows: (A,0), (B,1), (C,2), (D,3),…, (Z,25)Their algorithm combines the key and the message using modular addition. The numerical values of corresponding message and key letters are added together, modulo 26. For example, if the plain text is “HELLO” and the key is “SECRET” then the encrypted message is calculated as following:Since the length of the plaintext is 5, we just need the first 5 letters of the key (i.e. “SECRE”), then for each letter, we should add corresponding letters in both the plaintext and the key modulo 26.Plaintext: H (7) E (4) L (11) L (11) O (14)Key: S (18) E (4) C (2) R (17) E(4)Cipher: Z (25) I (8) N(13) C(2) S (18) Write a program in Python, C/C++ or JavaScript to…
Given p = 47569 and q = 51413. What is N and the totient(N)? Choose a valid e. How do you know it's valid? Now given a different e = 401 what is d for this value of e? Decrypt the following ciphertext C sent using your public key and submit this in the answer below. C = 1100065960 If you decrypted correctly you should have a six digit number that corresponds to a three letter ASCII word. What is that word?