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CHAOSREAD(1) General Commands Manual CHAOSREAD(1)


chaosread - read raw noise source from chaoskey




chaosread reads ADC values from the noise source on the attached ChaosKey device.


-s serial | --serial serial
This selects a ChaosKey by serial number instead of using the first one found.
-l length | --length length
Set the amount of data to read. Suffixes 'k', 'M' and 'G' are supported. The default is 1k.
-i | --infinite
Keep reading forever (or until the process is killed).
-b | --bytes
Read 16-bits little endian values and write out one byte per sample from bits 1-8 of the sample (zero-based, so shift right by one).
-b | --cooked
Read values from the 'cooked' endpoint, which is the source used by the kernel driver that contains trimmed and whitened data which has 8 bits of entropy per byte.
-b | --raw
Read from the raw RNG source endpoint, which is best for testing the hardware on the device. This is the default
-b | --firmware
Read from the device firmware. This can be used to verify that the firmware in the device has the expected contents.


chaosread reads noise data.


Keith Packard