siphash-d is the D implementation of SipHash.

The latest CRuby uses SipHash to prevent Hash-flooding DoS attack. From now on, SipHash like algorithm will be important for robust application. So I implemented SipHash for D.

Current version provides only siphash24 function:

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import siphash;

ubyte[16] k = cast(ubyte[])"To be|not to be!";
ubyte[] msg = cast(ubyte[])"that is the question.";
auto hashed = siphash24(k, msg);

I plan to add std.digest like struct and other APIs if needed.

siphash-d has already listed in the official site. Thanks to JP Aumasson!

Yesterday, I talked about Impala Coordinator, which is scheduler layer of query execution.

My presentation document is here!

And @oza_x86 also talked about Impala Internal, but he focused on Query Execution Engine. The rest important component is only Query Planner. I hope someone presents Query Planner Internal at next event :)

@GedowFather presented Impala testing and operations on production(ja). This presentation shared the knowledge and application consideration. I think this presentation is testbed for Impala introduction.

Thanks to Hadoop User Group Japan for the good event!

Links

• Event page (ja)
• Togetter (ja)

Walter launched “The D Programming Language Conference 2013” on kickstarter in the last week. I have already pledged, and total pledged now passed the 50% :)

Please pledge your support!

Forum: DConf 2013 on kickstarter.com: we’re live!

denv is a D version of rbenv.

It enables you to manage multiple versions of D environment.
See README for more details.

• Announce at digitalmars.D.announce
• denv for contest programming (in Japanese)

Fluentd Casual Talks will be held in Japan.

I will talk about “The Melancholy of Plugin Developer” in LT section.

See you at the event!