On Thu, 11 May 2023 09:36:17 GMT, Ferenc Rakoczi <d...@openjdk.org> wrote:

>> Implement support for Leighton-Micali Signatures (LMS) as described in RFC 
>> 8554. LMS is an approved software signing algorithm for CNSA 2.0, with 
>> SHA-256/192 parameters recommended.
>
> Ferenc Rakoczi has updated the pull request incrementally with one additional 
> commit since the last revision:
> 
>   Reintroduced Length for HSSPublicKey, added more @Override annotations

src/java.base/share/classes/sun/security/provider/HSS.java line 39:

> 37: /*
> 38:  * This class implements the Hierarchical Signature System using the
> 39:  * Leighton-Micali Signatures (LMS) as described in RFC 8554 and NIST 
> Special publication 800-208

Nit: add period at end of sentence.

src/java.base/share/classes/sun/security/provider/HSS.java line 719:

> 717: 
> 718:         @java.io.Serial
> 719:         protected Object writeReplace() throws 
> java.io.ObjectStreamException {

I think the serialized form of an HSSPublicKey should also be specified in the 
CSR since this Key is returned from a standard API. I think you can add a 
simple sentence such as:

"The Keys returned by an "HSS/LMS" `KeyFactory` are `Serializable` and use 
`java.security.KeyRep` as its serialized representation."

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/13691#discussion_r1191420316
PR Review Comment: https://git.openjdk.org/jdk/pull/13691#discussion_r1191436386

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