crypto: add randomFill and randomFillSync
Checklist
-
make -j4 test
(UNIX), orvcbuild test nosign
(Windows) passes -
tests and/or benchmarks are included -
documentation is changed or added -
commit message follows commit guidelines
Affected core subsystem(s)
crypto
Description of change
crypto.randomFill and crypto.randomFillSync are similar to crypto.randomBytes, but allow passing in a buffer as the first argument. This allows us to reuse buffers to prevent having to create a new one on every call.