[fprint] About DigitalPersona U.are.U 4500

[Jeff Yang]

Hi, Paolo

You can try these open source ones:
http://www.pcausa.com/Utilities/UsbSnoop/default.htm
http://usbsnoop.sourceforge.net/

Or you can try some commercial tools (not free though):
http://www.hhdsoftware.com/Products/home/usb-monitor.html
http://www.sysnucleus.com/
http://www.usblyzer.com/

Jeff


-----Original Message-----
From: Paolo Arnaldo Dallari [mailto:paolo.arnaldo at gmail.com] 
Sent: Wednesday, May 27, 2009 12:15 AM
To: Jeff Yang
Subject: Re: [fprint] About DigitalPersona U.are.U 4500

Hi Jeff,
I'm asking you how do you compare the USB traces,
what program do you use?

I have a similar problem with U.are.U 4000 that don't work with
libfprint,
Daniel Drake tell me to get out the firmware from the usb traces of
the windows driver
and put it into the linux driver.

I'm a programmer but I never worked with USB traces, can you tell me
how can I do?

Many thanks.

Best Regards,

Paolo

2009/5/26 Jeff Yang <JeffY at rosestudios.com>:
> I did compare the USB traces between 4000B and 4500 with 1.3.0 SDK.
Like I
> mentioned in my previous email, the driver does NOT send any
"firmware" data
> blob to 4500. It DOES send "firmware" data blob to 4000B. Now I don't
know
> where to start to figure out how to disable hardware encryption since
we
> don't know what's in the "firmware" (data chunk? or compiled binary
code?
> and what the compiler is?). I think DigitalPersona uses Windows Crypto
API
> for the encryption. I need to do more study to see if it's possible to
> decrypt the image. An interesting thought is how they decrypt the
image
> under Linux? They write some compatible library to simulate the
windows
> Crypto API?
>
>
>
> What do you guys think?
>
>
>
> Ji Yang
>
>
>
> From: fprint-bounces at reactivated.net
[mailto:fprint-bounces at reactivated.net]
> On Behalf Of Artem Egorkine
> Sent: Sunday, May 24, 2009 9:04 PM
> To: fprint at reactivated.net
> Subject: Re: [fprint] About DigitalPersona U.are.U 4500
>
>
>
>
>
> On Mon, May 25, 2009 at 6:54 AM, Philip Nelson <philip at whatsbeef.net>
wrote:
>
> On Mon, May 25, 2009 at 06:43:28AM +0300, Artem Egorkine wrote:
>> I am wondering, are there _any_ SDKs that support "U.are.U 4500"
readers?
>> Digital Persona themselves offer SDK 1.3.0 (Windows) and 1.1.0
(Linux) for
>> download. These same SDKs were available before the "U.are.U 4500"
reader
>> came to market and, to no surprise, the SDK datasheet only mentions
4000
>> and
>> 4000B.
>
> The free digitalperson sdk (1.3.0) does support the 4500 reader
(perhaps
> unofficially?). I have a program that uses this SDK and we ordered a
4500
> reader
> to see what it was like, I didn't expect it to work, but I plugged it
in and
> it
> Just Worked with my program.
>
> Would be interesting to compare the USB traces of 4000B and 4500
devices
> with 1.3.0 SDK...
>
>
>
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