qirh / c361_aes_128

CS361 Foundations of Security. Assignment 4 (AES-128)

Description

Java project by me and @Ovais. Done for CS f361, taught by the amazing Dr. Bill Young in the summer of 2016. For assignment details, please look here

There are 7 java files:

• In AES.java, we implemented the driver main method and some helpers to it.
• In Utility.java, we implemented each of the steps of the encryption/decryption process. Each in a different method, with some having companion helper methods.
• MixColumns.java, is pretty much the exact code provided to us by Dr. Young, with slight modifications.
• Constants.java, has no code, but rather some constant arrays that we got from the internet and the project specs.
• AddRoundKey.java, is responsible for key expansion.
• Reader.java, reads from a file.
• Writer.java, writes to a file.

We both worked together on this project, mostly on the same screen, however, we did work remotely for some parts, in those times, saleh worked on AES.java and Utility.java implementing most of it, while ovais finished working on and testing AddRoundKey.java. To compile the program, you need to use

javac *.java

To run the program, you need to use

java AES <e or d> <keyfile> <inputfile>

Finish

We finished all of the requirements for this assignment. as far as I know, there are no bugs.

Test Cases

Test Case 1

• Command line

$ e keyFile inputFile1

• Timing Information 27 milsec
• Input Filenames inputFile1
• Output Filenames inputFile1.enc

Test Case 2

• Command line

$ d keyFile inputFile1.enc

• Timing Information 40 milsec
• Input Filenames inputFile1.enc
• Output Filenames inputFile1.enc.dec

Test Case 3

• Command line

$ e keyFile inputFile2

• Timing Information 72 milsec
• Input Filenames inputFile2
• Output Filenames inputFie2.enc

Test Case 4

• Command line

$ d keyFile inputFile2.enc

• Timing Information 62 milsec
• Input Filenames inputFile2.enc
• Output Filenames inputFile2.enc.dec

Test Case 5

• Command line

$ e keyFile inputFile3

• Timing Information 63 milsec
• Input Filenames inputFile3
• Output Filenames inputFie3.enc

Test Case 6

• Command line

$ d keyFile inputFile3.enc

• Timing Information 56 milsec
• Input Filenames inputFile3.enc
• Output Filenames inputFile3.enc.dec