#Hash Performance Testing Tool (bcrypt)
Java command-line interface application for testing the hardware-dependent performance of hash-algorithms.
Currently only bcrypt is supported (via the jBCrypt library), although this might change in future releases.
##Requirements
Java Runtime Environment (1.6 or greater)
##Usage
Download the packaged JAR file, you will probably want to do that directly on your server:
wget -O hash-performance-all-1.0.7.jar 'https://github.com/cdraeger/hash-performance/blob/master/release/hash-performance-all-1.0.7.jar?raw=true'
Start the application: java -jar hash-performance-all-1.0.7.jar [options]
Add -h, --help to see possible parameters first (all optional):
| Option | Description |
|---|---|
-c, --color |
disables colorized output |
-h, --help |
shows this help. |
-p, --print |
enables printing of the resulting hash to the console |
-s, --string |
sets the string used for the hash-function |
##Description
This tool takes the user-input as the log2 of the number of rounds of hashing to apply, and displays the total time consumed by the hash-function. The precision of the duration is as good as the platform allows.
The work factor and therefore the duration of the hashing with bcrypt increases exponentially (2^x), which is why the time consumed by hashing passwords is important to know for a proper balance of server-load, response-times and security.
For easy measurement and formatting of the elapsed time, the Guava Stopwatch implementation is used. Since the whole Guava dependency blows up the file size, only the necessary classes were extracted.
##Changelog
v1.0.7
- Switched to Guava Stopwatch implementation for time measurement and display
v1.0.6
- Initial release