On Thu, Jun 20, 2024 at 04:16:54PM GMT, Nina Schoetterl-Glausch wrote: > Add functions for generating pseudo random 32 and 64 bit values. > The implementation uses SHA-256 and so the randomness should have good > quality. > Implement the necessary subset of SHA-256. > The PRNG algorithm is equivalent to the following python snippet: > > def prng32(seed): > from hashlib import sha256 > state = seed.to_bytes(8, byteorder="big") > while True: > state = sha256(state).digest() > for i in range(8): > yield int.from_bytes(state[i*4:(i+1)*4], byteorder="big") > > Acked-by: Andrew Jones <andrew.jones@xxxxxxxxx> > Signed-off-by: Nina Schoetterl-Glausch <nsg@xxxxxxxxxxxxx> > --- > There was a discussion about potentially needing random numbers for RISC-V SBI tests, so I've queued this on riscv/sbi, https://gitlab.com/jones-drew/kvm-unit-tests/-/commits/riscv%2Fsbi Thanks, drew
