No need to encrypt public value

When a (public, private or secret) key is created with CKA_PRIVATE=true, all the values are encrypted. It would be preferable to encrypt only private parts of the key. Indeed, it makes some known plaintext. For a public RSA key, no value (e, n) should be encrypted. For a private RSA key, only private values must be encrypted (p, q, ...) but not the public ones (n, e).