Digital Signature Algorithm (DSA) - Public Key Cryptography + JAVA (Prototype Project 07)
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00:06 demo a prebuilt version of the application
06:16 Digital Signature Algorithm summary
09:45 Digital Signature Algorithm proof
11:45 code the application
12:05 setup the project for using JSON
12:46 go over the packages and classes that make up this app.
14:28 code the server side of this app. (Server and ServerThread classes)
16:47 how the server forwards messages from Alice to Bob and the other way around
17:12 how ServerThread handles incoming JSON messages
17:40 what Discret Logarithm Problem does Eve needs to solve in order to sign messages as being Alice or Bob
18:20 code the client side of the app.
19:44 method to check if a number is prime
19:54 method used to hash messages
23:05 method to handle setup phase
25:25 method to pickup ephemeral key
25:35 method to pickup signing key
25:55 method to hash messages
27:00 method for calculating signature param r
27:45 method for calculating signature param s
28:13 method for sending signed messages
28:58 method for receiving other party params
30:42 method for validating incoming messages
32:34 test run completed app.
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