tree 7f7d72ed6c45a2fa32cc72bd03725e88ccf1bc9f
parent 34d3756457c4787e9194b408968950c4e18e9041
author Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com> 1623749366 +0200
committer Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com> 1623915475 +0200

Check for mandatory RNG parameters in RSA private

(This commit is best reviewed using `git show -b` as indentation levels
have changed.)

The documentation already states that the RNG parameter is mandatory,
since PRs #4488 and #4515. There are several families of functions to
consider here:

- private-key operations (sign, decrypt) all call
mbedtls_rsa_private() where this commit adds a non-NULL check;
- encrypt operations need an RNG for masking/padding and already had a
non-NULL check since #4515 (conditional on \p mode before that)
- verify operations no longer take an RNG parameter since #4515

So, after this commit, all RSA functions that accept an RNG will reach a
non-NULL check before the RNG is used.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>