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Oct
20
awarded  Popular Question
Jul
25
awarded  Custodian
Jul
21
awarded  Commentator
Jul
21
comment How do I derive the time complexity of encryption and decryption based on modular arithmetic?
@almodawan while calculating complexity you are only considering encryption and decryption but during decryption inverse process is happening whose complexity is $O((log N)^2)$ so total complexity is $(n^2)+O((log N)^2)+O(n^2)=O(2 n^2)+O((log N)^2) = O((log N)^2)$
Jul
21
revised How to calculate complexity of ElGamal cryptosystem?
deleted 69 characters in body
Jul
18
revised How to calculate complexity of ElGamal cryptosystem?
added 422 characters in body
Jul
16
asked How to calculate complexity of ElGamal cryptosystem?
Mar
19
awarded  Notable Question
Mar
7
revised why inverse in diffie-hellman protocol will not give same value?
added 88 characters in body
Mar
6
comment why inverse in diffie-hellman protocol will not give same value?
in case of ElGamal $g^{x k}.g^{xk}^-1 = 1 why not in K^{b}^−1= g^{abb}^−1
Mar
6
comment why inverse in diffie-hellman protocol will not give same value?
last line is not clear how (g^ab)^b^-1 will be equal to g^an*g^a..
Mar
6
comment why inverse in diffie-hellman protocol will not give same value?
that what is my question why g^a!=(k^b)^-1
Mar
6
comment why inverse in diffie-hellman protocol will not give same value?
In case of ElGamal we decrypt the cipher text by inverting m=c*(g^ab)^-1 then why not in diffie-hellman
Mar
6
asked why inverse in diffie-hellman protocol will not give same value?
Jan
23
comment RSA with composite numbers
i delete my previous question because i found the question is not correct and here i am asking about that question
Jan
23
asked RSA with composite numbers
Jan
23
awarded  Editor
Nov
20
awarded  Popular Question
Sep
16
comment How is the key shared in symmetric key cryptography?
hand over the key by post or any media is not secure that why the concept of public key cryptography come in consideration.
Sep
16
asked How is the key shared in symmetric key cryptography?