Posts Tagged ‘Intel’

BlackBerry password cracking: multi-threaded, with hardware-accelerated AES

Thursday, December 9th, 2010

Most modern CPUs are multi-core – it is not easy to find even a laptop with less than two cores these days. And for desktops, 4 cores are usual now.

Password recovery is one of most CPU-intensive tasks, and it fits best into multi-processor architecture. Every CPU (or CPU core) get its own portion of passwords to try (i.e. to check their validness), and they all work in parallel. As simple as that.

So what we’re doing in our software is running multiple threads – as many as the number of CPUs (or cores) available. And the rest is being done by the operating system, that assigns the threads to cores (well, in most cases we don’t care what particular core is going to execute a particular thread, because they are all equal; the only exception is when one or more of the cores is doing something already, I mean something CPU-intensive as well).

(more…)

AMD vs NVIDIA, next round

Wednesday, September 9th, 2009

Looking for new password cracking hardware (to take advantage of GPU acceleration)? Wait just a little bit more: new ATI and NVIDIA cards (with DirectX 11) will be available soon.

ATI is going to release Radeon HD 5000 cards (5850, 5870, 5870 X2) in October — well, hopefully. The top one (HD 5870X2: single-PCB, dual-GPU) will retail for $599.

As for NVIDIA’s new GT300, the specifications were revealed in April. In brief, it groups processing cores in sets of 32 (up from 24 in GT200) — up to 512 cores total for the high-end part. If the clocks remain the same as on GT200, that will double the overall performance. And there are other improvements as well: e.g. GT300 cores rely on MIMD-similar functions. Some fresh information about GT300 availability:

You may ask — what about Intel? Well, new Core i5 and i7 (codename Lynnfield) now available. Nothing revolutionary new, just Intel P55 Express Chipset support: integrating both a 16-lane PCI Express 2 graphics port and two-channel memory controller on a single chip (previous chipsets required separate northbridge and southbridge), as well as several minor improvements. More information and some benchmarks at Intel Lynnfield; Core i5 750 and Core i7 870 Evaluation and New Intel Core i5, i7 Processors Product Matrix.

And still [almost] noting about Intel Larrabee, mostly just rumors:

Finally, funny article: NVIDIA to Intel: Your Days Are Numbered :)
 

Intel Larrabee, AMD Llano: when?

Tuesday, June 23rd, 2009

According to NordicHardware, Sapphire Or Zotac Might Launch Larrabee. No further information on Larrabee yet, though; as we already wrote, the Larrabee lauch date is set to 2010. The only news from Intel so far is about i3, i5, i7 CPU naming system: Lynnfield, Clarksfield, Arrandale, Clarkdale; besides, Intel plans shipments of 32nm ‘Clarkdale’ in Q4.

What about ATI? Nothing really new so far; but here is some info on Llano chip; also, in AMD blog, and at Tom’s Hardware: ATI Stream: Finally, CUDA Has Competition.

Preliminary Larrabee perfomance revealed

Friday, June 5th, 2009

When it comes to Larrabee one of most intriguing things is its performance. Official information provided by Intel was not enough to get good estimation. In my previous post I’ve estimated it as "roughly equivalent to GTX 295". Well, it seems I was too optimistic. Latest rumors are that current Larrabee samples deliver same performance as GTX 285.

We’ve written earlier that Larrabee is probably delayed till early 2010. This almost certainly means that it will have to compete with next-generation ATI and NVIDIA cards, both are currently scheduled for Q3-Q4 2009 (ATI have even presented their new chip at COMPUTEX 2009).

Nonetheless, Larrabee still seems promising to us and we will definitely try our best to make our GPU-enabled products such as Distributed Password Recovery and Wireless Security Auditor compatible with Larrabee once it’ll become available.

Update (06/08): Intel’s ‘Larrabee’ to Be "Huge".

Nvidia Unveils 1U Server With 2 Tesla GPUs On Board

Wednesday, June 3rd, 2009

The summer has begun, and as usual at this time of the year big companies present the results of hard work to the public. With Microsoft’s Bing and Google Wave flooding the news, you might have overlooked the joint release of NVIDIA and Supermicro. At Computex 2009 in Taipei, Taiwan, Nvidia and Supermicro announced

a new class of server that combines massively parallel NVIDIA® Tesla™ GPUs with multi-core CPUs in a single 1U rack-mount server.

According to the news text, the performance will increase 12 times compared to a traditional quad-core CPU-based 1U server. The new 1-unit solution combines 2 NVIDIA Tesla 1060 GPU cards with Dual Quad/Dual-Core Intel® Xeon® processors 5500 series, so you do not have to configure your machine as in case with Nvidia S1070 featuring four Tesla GPUs. The new server is based on Nvidia CUDA™ architecture.

It should be a very powerful solution and an expensive one too. However, we do not expect password recovery to benefit much from it. As we’ve mentioned many times before, password recovery is barely cost-effective when expensive hardware is involved in the process.

Read the press release

When CPU is not enough

Thursday, May 28th, 2009

Hardware acceleration of password recovery has been a hot topic for quite some time already. We were the first to adopt widely available graphic cards for this purpose and we’re proud of this. Today I’d like to share some thoughts on hardware acceleration for password recovery, its past, present, and future. I will also cover the most frequently asked questions regarding GPUs.

(more…)

Intel news: Larrabee delayed, Nehalem-EX Xeon previewed

Wednesday, May 27th, 2009

First of all, sad news: Intel Larrabee is delayed till 2010 (we were expecting it in Q4’2009), according to the reports. With 32 cores onboard (though this number is not confirmed yet), it looks like a very good system for password cracking. Some Larrabee development tools and resources are already available, and of course, we’re porting our code to this platform, and will share the results with you as soon as we’ll be able to (we’re under the NDA with Intel; as well as with Nvidia and AMD :) ).

(more…)

NVIDIA about Intel

Tuesday, April 28th, 2009

Considering Intel Core i7? Read Nvidia Says Core i7 Isn’t Worth It and nVidia calls Core i7 a waste of money first. We’d agree that investing into GPU(s) is really a good idea, especially if you need to crack passwords.

More cores, faster password cracking

Friday, April 24th, 2009

AMD revealed that its plans a 12-core Opteron processor in 2010, and a 16-core Opteron in 2011. Unfortunately, almost no further/technical details — more cores is definitely good, but we’d like to see whether AMD is able to implement SSE2 effectively. Right now, SSE2 instructions are executed much slower on AMD processors than on Intel ones, while they’re really important for SHA-1 (the most password checking routines are based on). Or may be SSE5 will give provide additional benefits for password cracking?

Six-Core Opterons (Istanbul)

Wednesday, April 22nd, 2009

According to Tweak Down, AMD will start shipping them next month. We’ll see how do they compare with Intel Gulftown.