RFR: 8325448: Hybrid Public Key Encryption [v28]

[Weijun Wang]

On Thu, 14 Aug 2025 17:01:02 GMT, Weijun Wang <weijun at openjdk.org> wrote:

>> Sounds good. How is this worth doing? I'll need a `CharsetDecoder` with all error input reporting on and then  catch the exception.
>
> One known user of HPKE -- [Encrypted ClientHello](https://datatracker.ietf.org/doc/html/draft-ietf-tls-esni-25#name-offering-ech) -- uses `"tls ech" || 0x00 || ECHConfig` and it's binary (at least you see an 0x00 there).

In fact, if I output a string format here, I would rather only do it for pure ASCII strings. Some Unicode characters are just not distinguishable from human eyes. Then the check can be very simple.

Do you prefer showing both? I mean, info=41424344 ("ABCD").

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PR Review Comment: https://git.openjdk.org/jdk/pull/18411#discussion_r2277271108