* Modernize SSH key lengths
No default change was made in this commit; note that the code already
enforced a default of 2048 bits. ssh-keygen and Go's RSA key generation
allows for key sizes including 3072, 4096, 8192; update the values of
SSH key generation to match PKI's allowed RSA key sizes (from
certutil.ValidateKeyTypeLength(...)). We still allow the legacy SSH key
size of 1024; in the near future we should likely remove it.
Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
* Ensure minimum of 2048-bit PKI RSA keys
While the stated path is a false-positive, verifying all paths is
non-trivial. We largely validate API call lengths using
certutil.ValidateKeyTypeLength(...), but ensuring no other path calls
certutil.generatePrivateKey(...) --- directly or indirectly --- is
non-trivial. Thus enforcing a minimum in this method sounds like a sane
compromise.
Resolves: https://github.com/hashicorp/vault/security/code-scanning/55
Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
6e069e94ca