[8] Code review request for 8005408: KeyStore API enhancements

[Vincent Ryan]

Hello,

Please review the fix for 8005408. It adds support for associating attributes 
with keystore entries.
It is yet another component of the JEP-166 delivery.

This new API permits several enhancements to the PKCS12 keystore 
implementation: the storage of
trusted certificates, storage of secret keys and support for entry metadata. 
Currently, only the
PKCS12 keystore takes advantage of these new KeyStore APIs.

Webrev: http://cr.openjdk.java.net/~vinnie/8005408/webrev.00/


For storing trusted certificates in PKCS12 a new SafeBag attribute (with a 
familiar syntax) is introduced
to indicate a trust usage:

trustedKeyUsage ATTRIBUTE ::= {
    WITH SYNTAX ExtKeyUsageSyntax
    ID id-at-trustedKeyUsage  -- object identifier from an Oracle arc
}
 
-- from RFC 5832, Section 4.2.1.12
    ExtKeyUsageSyntax ::= SEQUENCE SIZE (1..MAX) OF KeyPurposeId 
    KeyPurposeId ::= OBJECT IDENTIFIER
    anyExtendedKeyUsage OBJECT IDENTIFIER ::= { id-ce-extKeyUsage 0 }

Note that this approach does not preclude the storage of a Trust Anchor List 
(as defined in RFC 5914)
which was proposed earlier on this list.


There is one omission from the webrev above: the java.security.PKCS12Attribute 
class needs some
additional changes and will be posted shortly.

Again, JEP-166 is on a tight schedule for M6 so your early comments are 
appreciated.

Thanks.