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Wednesday, July 29, 2020

Public Key Cryptography + Elgamal Digital Signature + JAVA


Public Key Cryptography + Elgamal Digital Signature + JAVA

prototypeprj.com = zaneacademy.com (version 2.0)

00:06 demo a prebuilt version of the application 

06:14 Elgamal Digital Signature summary 
08:16 Elgamal Digital Signature proof 

10:24 code the application 
10:42 setup the project for using JSON 

11:04 go over the packages and classes that make up this app. 

12:41 code the server side of this app. (Server and ServerThread classes) 
14:16 how the server forwards messages from 
Alice to Bob and the other way around 

15:30 how ServerThread handles incoming JSON messages 
16:10 what Discret Logarithm Problems does Eve needs to 
solve in order to sign messages as being Alice or Bob 

17:15 code the client side of the app. 
18:24 methods to turn character to ascii and ascii to character 
18:30 method to check if 2 numbers are relatively prime 

19:15 method to handle setup phase 
22:14 method to send signed messages 

22:41 method to calculate signature params r and s 

23:33 method for signing and sending messages 

24:28 method to handle signature verification 

25:24 method to handle incoming JSON messages 

26:48 test run completed app.

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