https://github.com/jcmfernandes/ofepj

Optimistic Fair Exchange Protocol implementation in Java.
https://github.com/jcmfernandes/ofepj

Last synced: 14 days ago
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Optimistic Fair Exchange Protocol implementation in Java.

• Host: GitHub
• URL: https://github.com/jcmfernandes/ofepj
• Owner: jcmfernandes
• Created: 2012-12-17T20:32:30.000Z (about 12 years ago)
• Default Branch: master
• Last Pushed: 2012-12-17T21:13:54.000Z (about 12 years ago)
• Last Synced: 2024-10-28T01:11:40.649Z (about 2 months ago)
• Language: Java
• Homepage:
• Size: 148 KB
• Stars: 2
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Optimistic Fair Exchange Protocol in Java

This is a simple implementation of the OFE protocol that I did for a graduate software security course. It was not severely tested but granted me a good score. Debug mode (`-d`) helps a bit to prove its robustness.

## Compiling

Use the provided ANT build file to build the application.

`$> ant`

This will create all class files inside the 'bin' directory.

## Using

After compiling the application, you have to generate key-pairs. To do this use the `-gk` command line argument.

The trusted third-party has to have the fixed identity `TTP`. Suppose you want Alice to have identity `A` and Bob to have identity `B`. You have to do the following to create their keys:

Beware, identities are case-sensitive!

`$> ./run -gk TTP && ./run -gk A && ./run -gk B`

Run the program with flag `-h` to see the set of possible options.

Bellow is a simple execution example. Assuming you already have created the key-pairs previously, do the following:

Run at different terminals to see the execution in parallel.

`$> ./run -ttp -lp 5000`  

`$> ./run -b -bi B -lp 5001 -ta localhost:5000`  

`$> ./run -a -ai A -bi B -ba localhost:5001 -ta localhost:5000`

To enable the debug mode append flag `-d`.