3 replies to this topic

[Valkyrie-MT]

Chris, do you still have the Managed AES library?  Anyone else have one? 

[Chris Walker]

Hi Valkyrie, We're generally using hardware AES crypto on our NETMF gear these days. We did use to have a NETMF AES implementation for testing, but I don't see it anywhere... If you search the web for "AES C# managed code", you should be able to adopt one of the online C# implementations pretty easily. You may need to convert multidimensional arrays to jagged arrays, etc. Now I'm curious what you're building Chris

[Valkyrie-MT]

I'm currently working on the TI cc3000 driver for .NET MF.  It's a fully managed driver and is published here http://cc3000.codeplex.com under Apache 2.0.  This wifi controller has a unique way to set the ssid and password that TI calls SmartConfig. It's a very clever implementation that TI won't disclose, although if you watch the network traffic, it's not too hard to see what they are doing.  But, the ssid+password passing can optionally be done with AES encryption, so I was looking for a lightweight managed AES decryption for the receiving end... 

 

I recently published a small demo of the device here: http://youtu.be/LjZbpr2qPqU

 

It would make for an awesome Netduino variant!  Since it uses SPI, you could take the Netduino Plus 2 and replace the enc28j60 and the RJ-45 jack with the cc3000 chip and an integrated antenna. 

 

<planting seed> 

[KiwiDev]

Hi,

 

The "Legion of the Bouncy Castle" has Java & .net implementations for many commonly used Crypto algorithms.

 

I have used their XTEA code on both NetMF devices & my Azure backend so they would be worth a look to see if their AES implementation will work in your scenario.

 

http://blog.devmobil...ad-encryptionv7

 

Bryn