>>>>> "IanG" == IanG <[EMAIL PROTECTED]> writes:
IanG> Nope, sorry, didn't follow it. What is BOM, SoC, A plug, gerber? Bill Of Materials -- cost of the raw hardware System on (a) Chip -- microchip with CPU, RAM, FLASH, etc USB A Plug -- physical flat-four interface; think USB key drive gerber -- file format for hardware designs A system-on-a-chip which has rng and usb-client hardware on board (aka on chip) should fit in a package which looks just like a USB key drive. The software load could make it look like any USB device, including a USB storage device where every read produces blocks of entropy, as you suggested. A search for "site:linuxdevices.com SoC RNG USB" shows some useful SoCs, such as: http://www.linuxdevices.com/news/NS9265554097.html http://www.linuxdevices.com/news/NS6958318931.html http://www.linuxdevices.com/news/NS6020408561.html http://www.linuxdevices.com/news/NS4943322251.html http://www.linuxdevices.com/news/NS4469294424.html There seems to be significant interest in the industry for SoCs for Point of Sale smartcard readers which would also work for your proposed design. You did suggest an open hardware design.... As for using a camera, shots with a lens cover on and with the gain turned up (ie, tell people to set the camera to its highest ISO setting) should maximize the recorded entropy w/o using their candids, eh? -JimC -- James Cloos <[EMAIL PROTECTED]> OpenPGP: 1024D/ED7DAEA6 --------------------------------------------------------------------- The Cryptography Mailing List Unsubscribe by sending "unsubscribe cryptography" to [EMAIL PROTECTED]
