Checkers

BSD checksum Maven package for Java.

Checkers will compute a 16-bit BSD checksum for a given byte array an return it as either a length-2 byte array or 16-bit integer (short). It has not been checked against the output from GNU sum but it has been checked against Bas Groothedde's JavaScript implementation successfully.

Installation

You can pull this package into your Maven project straight from here using JitPack. Add JitPack as a repository first:

<repositories>
    <repository>
        <id>jitpack.io</id>
        <url>https://jitpack.io</url>
    </repository>
</repositories>

Then add a dependency on Checkers:

<dependencies>
    <dependency>
        <groupId>com.github.lambdacasserole</groupId>
        <artifactId>checkers</artifactId>
        <version>v1.0</version>
    </dependency>
</dependencies>

Verification

Again, Checkers has not been tested agains the official BSD-16 implementation for reasons of "I'm on Windows and I don't really wanna install VirtualBox or compile sum.c from source". Output is consistent with Bas Groothedde's JavaScript implementation however. Here is test data for reference:

Data (ASCII)	Data (Hexadecimal)	Hash (Hexadecimal)
NfQsKFp1Q7JzTwDK	4e6651734b46703151374a7a5477444b	3e6d
hI2ZcuhrQDUjF3qn	6849325a637568725144556a4633716e	d38b
Jr3m4FFTZZlfOE4j	4a72336d344646545a5a6c664f45346a	966f
QaqudA9DPEhBrsRp	51617175644139445045684272735270	9f0b
aQnXUSzGqumPcGSO	61516e5855537a4771756d506347534f	6cf8
fI3z3qvax3JL91jJ	6649337a3371766178334a4c39316a4a	f663
M3FSpDugNr0qD6vm	4d334653704475674e7230714436766d	be0f
ujwFsX3UCVwriZYF	756a77467358335543567772695a5946	742d

Contributing

For most intents and purposes, Checkers is considered to fulfil its original use case. Bug fixes and suggestions are welcome, however, from any member of the community.