The seedFile option specifies the file from which the initialization values for the entropy pool of the PRNGD are read when the subsystem is started.
After is has been successfully read in the entropy pool is mixed. Random numbers taken from the pool are read back in. This ensures that the same initial values are not used at the next startup if the subsystem could not be terminated correctly. If the subsystem is terminated correctly, data is also written back into the file beforehand.
In all cases the entropy pool is not written directly into the file. Instead, as many random bytes are taken from the PRNGD and written to the file as the size of the entropy pool requires. This limits damage if unauthorized people access this file.
seedFile |
<file-name> |
<file-name>
Name of the file from which the initialization values are read.
Default: SYSDAT.PRNGD.nnn.SEED