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 Jan2 comment How can I solve congruence modulo N? Yes. It was my mistake Jan2 revised How can I solve congruence modulo N? added 3 characters in body Jan1 comment How can I solve congruence modulo N? Values of $J_A$ and $e$ are known. I am using example from GQ signature scheme from the book Page 451 cacr.uwaterloo.ca/hac/about/chap11.pdf Jan1 asked How can I solve congruence modulo N? Dec28 awarded Commentator Dec28 comment How to select parameters based on some condition Random is the accepted method? Whether RSA uses random method? Dec28 asked How to select parameters based on some condition Dec27 awarded Benefactor Dec27 accepted Shadowed identity in cryptography Dec27 comment Shadowed identity in cryptography Using the same example from the text, when I took $modularpow(J,phi−s,n)$, I am getting the value as -126739. I have J=34579, phi= 419184, s=233875 and n=420491 Dec27 comment Shadowed identity in cryptography One last question. There is an equation in the text "$s_A=(J_A)^{−s}mod\ n$". How could I calculate that? Taking $(J_A)^{−s}$ and taking mod n? Dec27 revised Shadowed identity in cryptography one more question added Dec26 comment Shadowed identity in cryptography What is the recommended method for calculating shadow? Dec25 awarded Critic Dec25 awarded Promoter Dec22 asked Shadowed identity in cryptography Dec17 comment Authentication mechanism for low memory, low computing power device @skillzeo I cant use this since it require computation at both parties and have to send messages between them many times Dec17 revised Authentication mechanism for low memory, low computing power device improved question Dec17 asked Authentication mechanism for low memory, low computing power device Dec9 awarded Popular Question