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Recent questions tagged rsasecuritynetworks
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Andrew S. Tanenbaum Edition 5th Exercise 8 Question 18 (Page No. 873)
Alice and Bob use RSA public key encryption in order to communicate between them. Trudy finds out that Alice and Bob shared one of the primes used to determine the number n of their public key pairs. In other words, Trudy found out that na = pa × q and nb = pb × q. How can Trudy use this information to break Alice’s code?
asked
Mar 19
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Computer Networks
by
ajaysoni1924
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Andrew S. Tanenbaum Edition 5th Exercise 8 Question 17 (Page No. 873)
Using the RSA public key cryptosystem, with a = 1, b = 2 . . . y = 25, z = 26. (a) If p = 5 and q = 13, list five legal values for d. (b) If p = 5, q = 31, and d = 37, find e. (c) Using p = 3, q = 11, and d = 9, find e and encrypt ‘‘hello’’.
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Mar 19
in
Computer Networks
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ajaysoni1924
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gfg quiz
From a large set of prime numbers Jimmy choose 23 and 17 as P and Q respectively and a random integer to be 13. Jimmy wants to sends a plain text to M = 127. What will be the value of cipher text using RSA? since i am getting ciphertext =(127^13) mod 391 now how should i calculate
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Dec 17, 2018
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Computer Networks
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vijju532
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0
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4
Ace Test Series: Computer Networks  RSA Algorithm
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Nov 1, 2018
in
Computer Networks
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Shankar Kakde
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195
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100
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acetestseries
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2
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5
MadeEasy Full Length Test 2019: Computer Networks  Rsa Security Networks
In an RSA system, the public key of given user is e = 31 and n = 3599. The private key of user will be ________
asked
Jul 23, 2018
in
Computer Networks
by
piya
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191
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1.1k
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computernetworks
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cryptography
madeeasytestseries2019
madeeasytestseries
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3
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6
self doubt RSA Algorithm
How To Solve..? 17 * d = 1 mod 3120. should we need to apply bruteforce?
asked
Jan 29, 2018
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Computer Networks
by
hacker16
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rsasecuritynetworks
+2
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0
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Cryptography  RSA Algorithm
In RSA Algorithm, we have public key(e,n) and private key(d,n). Sender side we encrypt plain text P as an integer between 0 and n1 as follows: $P^{e}modn$ ... message P we are taking it as as integer between 0 and n1. So, the P may not be coprime to n. Then how does the algorithm work?
asked
Jan 12, 2018
in
Computer Networks
by
Ashish Sharma 3
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343
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490
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8
MadeEasy Test Series: Computer Networks  Network Security
Please explain
asked
Jan 7, 2018
in
Computer Networks
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charul
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2
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9
RSA Public key Cryptosystem
Plz tell me how to solve this .I am feeling problem o calculate  10 = p^5 mod 35 . How to solve this type of question quickly.
asked
Jan 4, 2018
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Computer Networks
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ashwina
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423
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computernetworks
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0
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1
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10
MadeEasy Test Series: Computer Networks  Network Security
s1 only s1 and s2 s2,s3,s4 none of these
asked
Dec 13, 2017
in
Computer Networks
by
Shivi rao
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529
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RSA cryptosystem
Alice chooses 5 and 11 as P and Q respectively and e is a random number 13. Public key for Alice 35. Private key for Bob 17. What is the value of Cipher text for Alice,Plain text for Bob, Private key for Alice, Public key for Bob?  ...  Now I got confuse with formula and logic Can someone tell me which logic used where?
asked
Dec 11, 2017
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Computer Networks
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srestha
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0
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1
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12
MadeEasy Test Series: Computer Networks  Network Security
Consider the following statements with respect to digital signatures: S1: Digital signature ensures authenticity of the sender but not integrity of the message. S2: A single secret key can be used by the sender to sign multiple ... Both RSA cryptosystem and RSA digital signature scheme uses same set of keys. Which of the following is true?
asked
Dec 3, 2017
in
Computer Networks
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Appu B
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259
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183
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madeeasytestseries
computernetworks
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0
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1
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13
Computer network network security
Please explain theorem in simplest way and solve example with explanation. Using RSA algorithm what is the value of cipher test c if the plain text m=5 and P=3, q=11 & d = 7 ( if d not given how to find d ).
asked
Dec 2, 2017
in
Computer Networks
by
Harikesh Kumar
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875
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426
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14
CN Network Security
Message digest provides only message authentication or can it provide user authentication also? MDC is a digest for message authentication.Can i also say MAC is also a digest for sender authentication?Please explain this
asked
Aug 13, 2017
in
Computer Networks
by
rahul sharma 5
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25.3k
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rsasecuritynetworks
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15
network security
Let m be the message and c be the cipher text. public key=(e,n) and private key=(d,n) c=pe mod(n) Now, raising c to power of d mod(n), we get plain text p = cd mod(n)=ped mod(n). Now since p=ped mod(n), this condition should be true : ed=1 mod(Φ(n)). I didn't understand this equation.
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Jun 9, 2017
in
Computer Networks
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Bad_Doctor
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1.1k
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100
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computernetworks
+29
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11
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16
GATE2017144
In a RSA cryptosystem, a participant $A$ uses two prime numbers $p = 13$ and $q = 17$ to generate her public and private keys. If the public key of $A$ is $35$, then the private key of $A$ is __________ .
asked
Feb 14, 2017
in
Computer Networks
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Arjun
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425k
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7.7k
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normal
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1
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17
RSA algorithm
How to find value of d in RSA algorithm given the values of p , n and e ? Example: p=11 q=7 hence n =77 z = 10 × 6 = 60 e =13 (given) Now d should be multiplicative inverse of e mod z.. How to find it ?
asked
Jan 11, 2017
in
Computer Networks
by
Nitesh Methani
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520
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