Posts Tagged ‘GPU’

ATI and NVIDIA: Making Friends out of Enemies

Friday, March 12th, 2010

There had been a long standing competition between NVIDIA and ATI which has lasted for years now. And there is no winner so far — just like with Windows vs. Linux or PC vs. Mac debate there are ones who prefer the former and others who prefer the latter. Kind of «religious» issue.

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New password-cracking hardware

Friday, February 19th, 2010

Some time ago we wrote about the smallest password cracking device. Not suitable for you? No problem, here is another one: not as small, but definitely more powerfull: Audi. Yes, it's a car. No, we're not kidding. Just read NVIDIA and Audi Marry Silicon Valley Technology with German Engineering press release from NVIDIA. Or if you need more information, The New MMI Generation from Audi might be also helpful. In brief: Audi A8 luxury sedan is equipped with an entertainment system that uses two GPUs from NVIDIA. We have no idea what are these chips (may be Fermi?) and is it technically possible to load our own code to them, but still funny, isn't it? :)

More on Radeon HD 5000

Thursday, September 10th, 2009

Tom’s Hardware is a really good source we can definitely trust, so if you need more details on Radeon HD 5000-series cards (specifications and prices) that are coming soon, just read:

Best Graphics Cards For The Money: September ’09

Update (Sep 16th): GT300 could outperform the Radeon HD5870

Update (Sep 22nd): ATI Radeon HD 5870 pricing and specs list revealed

Update (Sep 23rd): ATI Radeon HD 5870: DirectX 11, Eyefinity, And Serious Speed

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 :)
 

Fastest GPU(s)

Tuesday, August 11th, 2009

Just about two weeks ago, ATI has introduced the fastest GPU yet: FirePro V8750. 800 shader engines, 115.2 GB/s memory bandwidth, 2 GB frame buffer memory (GDDR5), two DisplayPort outputs, one DVI output. Thinking about purchasing it? The cost is as high as $1,800. More details at Tom’s Hardware.

Want to compare ATI with NVIDIA? Then read ATI Stream vs. NVIDIA CUDA – GPGPU computing battle royale. Or you can use our Wireless Security Auditor (which supports cards from both manufacturers) for your own tests.

Office 2010: two times more secure

Tuesday, July 28th, 2009

We are waiting for release of new Microsoft office suite – Office 2010. Right now Microsoft has only technical preview of new Office; this preview has been leaked from Microsoft and everyone can download it with the help of torrent trackers. We’ve got a copy of Office 2010 and analysed its (new) password protection.

Starting from Office 2007, Microsoft used password protection system called ECMA-376, developed by ECMA International. This standard is open and everyone can write ECMA-376 based protection which will be accepted by Microsoft Office. The standard allows to select hash and encryption algorithms as well as the number of hash rounds (up to 10 millions is allowed).

In Office 2007, ECMA-376 with SHA-1 hash and AES-128 encryption is implemented. The number of hash rounds is 50000 that makes password recovery really difficult and slow. Office 2010 also uses SHA-1 and AES-128, but the number of hash rounds is now 100000. Therefore password recovery for new Office files will be two times slower.

Here is a diagram of password recovery speed for Office 2007:

To get a speed for Office 2010, simply divide these values to 2. We’ll get about 175 pps on Core2 6600 and about 8750 pps on Tesla S1070.

Why don’t increase the number of hash rounds to 10 millions ? Security is really important but it always affects usability. The hash is calculating to verify a password and when each document block is decrypted. If we add hash rounds – the document decryption time is increased. If a document is opening in MS Office during one hour – its unacceptable despite of high security.

Anyway – Office 2010 documents will be more secure than Office 2007 ones. And the new encryption has backward compatibility – all Office 2010 documents can be opened in Office 2007. 

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.

New iPhone

Saturday, June 6th, 2009

Latest rumors about iPhone: probably, it will have 3D Graphics Chip in it, according to Fudzilla article. Let’s hope that it will be CUDA-enabled, so we can make GPU-accelerated password cracker for it ;)

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

Eurocrypt 2009 Highlights

Tuesday, June 2nd, 2009

About a month ago annual Eurocrypt conference took place in Cologne, Germany. This is rather academic event (as most if not all events held by IACR) so it is not always easy to read its proceedings filled with formulas and theorems. Nonetheless there are usually couple of very interesting works presented at each such event. Let me tell you a little bit about this year’s highlights.

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