[SSSD] [sssd PR#923][comment] PRNG usage amended

[alexey-tikhonov]

URL: https://github.com/SSSD/sssd/pull/923
Title: #923: PRNG usage amended

alexey-tikhonov commented:
"""
CC @simo5 as this is based on discussion with him.
"""

See the full comment at https://github.com/SSSD/sssd/pull/923#issuecomment-548421189