memzero_explicit (9) - Linux Manuals
memzero_explicit: Fill a region of memory (e.g. sensitive keying data) with 0s.
NAME
memzero_explicit - Fill a region of memory (e.g. sensitive keying data) with 0s.
SYNOPSIS
-
void memzero_explicit(void
* s, size_tcount);
ARGUMENTS
s
-
- Pointer to the start of the area.
count
- The size of the area.
NOTE
usually using memset is just fine (!), but in cases where clearing out _local_ data at the end of a scope is necessary, memzero_explicit should be used instead in order to prevent the compiler from optimising away zeroing.
memzero_explicit doesn't need an arch-specific version as it just invokes the one of memset implicitly.
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