Question about mpz_clear

[Kevin Ryde]

"Eric M. Hopper" <hopper@omnifarious.org> writes:
>
> Does this clear the memory associated with a given variable zeroed?

No.

> Is there an easy way to make sure it is?

mp_set_memory_functions will let you have your own free function.

> I'm designing some software that does cryptography, and I would like to
> ensure that decrypted private keys are lying around in memory in a
> decrypted state for as little time as possible.

Lots of gmp routines put operand data on the stack too.