pub type PrimaryKey = Zeroizing<[u8; 32]>;Expand description
Primary key material that scrubs itself on drop.
A8: the bare [u8; 32] is Copy, so every hand-off between
load_primary_key → ensure_key_for_write → serialize_secret left a
residual copy on a stack frame that no .zeroize() call could reach —
zeroizing the last binding cleaned one copy and no more. Wrapping the array
makes it move-only in practice: each frame owns exactly one value and drops
it scrubbed.
Aliased Type§
pub struct PrimaryKey(/* private fields */);