yes, yes, it may have been posted in 2 places..... If you'd like to see the revised board files I'll pass them along. It took all of 5 minutes in eagle to make the update and add 2 more 3 way solder jumpers (or change them to header type jumpers for ease of end user configurability for slightly increased parts cost.... thinking I'll go back and add both in parallel and the header version can remain unpopulated or filled later at user descretion.
Eric On Thu, May 29, 2014 at 6:05 PM, Joshua Datko <[email protected]> wrote: > Hey Eric, thanks for the question, where did I read that before ;) > > Thanks for the recommendation, I'll look into the bus select option. > > The goal of this board is not to provide cryptographic acceleration, > because you are correct, the AM335x does have accelerators already (drivers > in 3.13). The purpose rather, is to provide key isolation. So the > RSA/ECC/MAC keys stay in the respective chips. For ECDSA for example, the > private key never leaves the chip. In the AM335x case, you'd have to > provide the key somehow in software. > > Also, the AM335x doesn't have any asymmetric crypto options. The TPM > provides RSA-2048 and the ECC108: ECDSA with three NIST curves. > > > On Thu, May 29, 2014 at 6:52 PM, Eric Fort <[email protected]> wrote: > >> ok, the data interface for all these chips sits in the i2c bus, so it >> looks like for much real encryption work this cape will be really slow, >> bottle necked and constrained by the chosen bus and it's bandwidth. I >> might also suggest for a rev 2 adding a set of 3 way jumpers such that it >> can sit on either i2c1 or i2c2. the inclusion of solder jumpers for pullups >> or not on the i2c bus was a good choice. I also fail to see what this cape >> does or assists with that the AM3358/AM3359 does not already do with it's >> on board cryptographic abilities which do at a minimum AES, SHA, & MD5, >> and possibly others. >> >> Eric >> >> >> On Thu, May 29, 2014 at 4:17 PM, Joshua Datko <[email protected]> wrote: >> >>> The CryptoCape, a collaboration between SparkFun and myself, is now >>> available for purchase at SparkFun Electronics [1]. In short, the cape adds >>> some hardware crypto chips, a RTC with battery, and an ATmega328p which is >>> designed to be flashed from the Beagle. It will be officially announced on >>> the "new products Friday" post tomorrow, but I think this group deserved an >>> early announcement. >>> >>> Thanks to BeagleBoard.org for making a great platform and special thanks >>> to Robert Nelson for backporting the TPM driver to 3.8. >>> >>> This community is awesome; I've learned so much by following this list. >>> Thanks to everyone who shares their time and knowledge. >>> >>> There's only 1 left :) >>> >>> Happy Hacking! >>> >>> Josh >>> >>> [1] https://www.sparkfun.com/products/12773 >>> >>> -- >>> For more options, visit http://beagleboard.org/discuss >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "BeagleBoard" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to a topic in the >> Google Groups "BeagleBoard" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/beagleboard/NhMSP9ywlzg/unsubscribe. >> To unsubscribe from this group and all its topics, send an email to >> [email protected]. >> >> For more options, visit https://groups.google.com/d/optout. >> > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
