Hi Everyone, I have a MIPSEL ci20 dev board for testing. The board has a hardware based rng, but its suffering entropy depletion. I have Debian's rng-tools package installed.
The board lacks /dev/hwrng. /dev/random blocks indefinitely after draining the device. "Indefinitely" may not be accurate, but I killed a program that waited over 4 hours for 16 bytes after draining /dev/random. The ci20's documentation is a bit scant, but it can be found at http://mipscreator.imgtec.com/CI20/hardware/soc/JZ4780_PM.pdf. I'm not sure what the output rate is, but it seems to be capable of one machine word (4 bytes) every few milliseconds. Without a delay, I can see values being shifted into the register mapped at 0x100000DC. I have a few questions: * Is there a driver for JZ4780 rng? * Is there a particular package for the driver that needs to be installed? * What causes/triggers /dev/hwrng to replenish /dev/random? Thanks in advance. Jeff -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
