RsaPrivateKey self-zeroizes on drop, so add the ZeroizeOnDrop marker trait to RsaPrivateKey and all newtypes thereof, i.e. DecryptingKey and SigningKey for the various padding modes.
This also removes the Zeroize impl on RsaPrivateKey, since it self-zeroizes on Drop, and allowing Zeroize might accidentally permit use-after-zeroize vulnerabilities.
RsaPrivateKeyself-zeroizes on drop, so add theZeroizeOnDropmarker trait toRsaPrivateKeyand all newtypes thereof, i.e.DecryptingKeyandSigningKeyfor the various padding modes.This also removes the
Zeroizeimpl onRsaPrivateKey, since it self-zeroizes onDrop, and allowingZeroizemight accidentally permit use-after-zeroize vulnerabilities.Closes #285.