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Message-ID: <BANLkTi=zR=+E+AOci5B+jgdn8E6vYu5Wbg@mail.gmail.com>
Date: Thu, 14 Apr 2011 11:51:28 -0700
From: David Hulton <0x31337@...il.com>
To: crypt-dev@...ts.openwall.com
Subject: Re: Answering and asking some of the first questions
Yuri,
>> 2. I am thinking of use the JTAG port avaiable in the development boards to
>> receive the input parameters and send back the result. This a serial port
>> that connects to a USB port on the Computer. Maybe, David has any suggestion
>> to this part.
>
> I assume it connects via an adapter. Sounds fine unless you've got a
> more suitable port.
>
>> There is an API to access the JTAG communication port inside the C code. So,
>> I will pass the parameters through the JTAG port, the FPGA will calculate
>> the hash and send it back to the computer. Finally, I will receive that in
>> the JtR using the API I mentioned.
>
> Sounds fine. These hashes are slow enough that the communication method
> does not matter much.
This seems fine for this project but in the future it'd be good to
move to a faster interface like PCIe or USB. We can send you one of
our boards that has a faster interface along with bus communication
example code and such when this time comes...
-David
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