Am Donnerstag, 23. März 2017, 10:44:06 CEST schrieb Herbert Xu: Hi Herbert, > On Thu, Mar 23, 2017 at 09:23:07AM +0100, Corentin Labbe wrote: > > Problem with this conversion, a huge regression for user space. > > Using hwrng is simple as cat /dev/hwrng. > > Using algif_rng via AF_ALG is ... unusable for the moment. > > Perhaps creating an user space tool (prng-tool which provide a cat > > /dev/hwrng replacement) is mandatory before any convertion. > Stephan may have a tool to do this. Stephan? I added the application kcapi-rng to HEAD of [1]. Create the application with the --enable-kcapi-rngapp configure option. $ kcapi-rng Kernel Crypto API Random Number Gatherer Kernel Crypto API interface library version: libkcapi pre-release 0.13.1 Reported numeric version number 130080 Usage: -b --bytes <BYTES> Number of bytes to generate (required option) -h --help This help information --version Print version -v --verbose Verbose logging, multiple options increase verbosity Data provided at stdin is used to seed the DRNG [1] https://github.com/smuellerDD/libkcapi/ Ciao Stephan