Ironically, in the process of writing a really fast implementation of the WPA2 encryption scheme, it was necessary (or at least easier) to first write a really slow implementation. Here is my wpa2slow Python module. To be fair, the actual speed at which this hashes isn’t the point. The point is that I have an entirely native… Read More: Sure, we’re brute-forcing, but what’s the rush? »
As discussed in a previous article, WPA2 encryption is comprised of three different algorithms layered on top of each other. I went over them in a very brief overview, so here is a more in-depth discussion on how I optimised and implemented them on an FPGA. Also linked in that previous article, it’s worth going… Read More: Unpacking WPA2 »
Hell yeah, acronyms. Restartin’ dis. I’ve got the old working SHA1 encryption algorithm going. It’s up on GitHub, here. I was waffling between parallel and serial loads and outputs. SHA1 takes a 512 bit input and outputs 160 bits, and no FPGA that I have access to will have that many pins. Here’s a fallacy I got stuck on… Read More: WPA2 HMAC SHA1 PMK FPGA VHDL »
Recently, I got given an FPGA development kit to continue working on my SHA1 system. The end-goal is to eventually integrate that into a PCI-E card, but we’ll see how that works out. The FPGA kit I have is the Digilent Basys2, and it uses a Xilinx Spartan 3E chip. The lowest-tier, 100k gate model.… Read More: I need another dev kit »
A few years ago, I designed and simulated a SHA1 encryption machine using CMOS logic. I actually built everything using Altera’s FPGA tools, Quartus. With standard propagation of the 7400 series, it worked out to about 1.8MHz max clock speed to prevent race conditions. Implementing the system right in VHDL and running it on… Read More: Further adventures of implementing SHA1 encryption on an FPGA »
Pretty soon after I wrote that last post, I got sent up north for work for a long while. Which is great, don’t get me wrong, I like money as much as the next guy. It really limits my ability to physically build, though. So I missed the contest entry deadline. Totally not surprised. I’d… Read More: Foiled Again »
As I sit here, riding shotgun in my work truck on the way to a job site, there is very little that I can do to be productive. I feel like I’m wasting my time. What I can do is set some final goals for my project, and also maybe do some some musing (in… Read More: Declarative Statement Goes Here »