RFR: 8325448: Hybrid Public Key Encryption [v17]

[Weijun Wang]

> Implement HPKE as defined in https://datatracker.ietf.org/doc/rfc9180/.
> ![HPKEParameterSpec · 11 54 · 04-21](https://github.com/user-attachments/assets/da309585-db51-40d6-b291-3d38040d6292)

Weijun Wang has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains 30 additional commits since the last revision:

 - change argument order for exporters, reject null exporter_context
 - Merge branch 'master' into 8325448
 - address Sean's comments
 - toString, exportData, spec in HPKEParameters must have algorithm identifiers specified
 - put encapsulation in params from getParameters
 - receiver must specify all algorithm identifiers
 - Merge branch 'master' into 8325448
 - remove unused imports
 - remove disabled identifiers check
 - getParameters
 - ... and 20 more: https://git.openjdk.org/jdk/compare/020240b9...15d0b85f

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/18411/files
  - new: https://git.openjdk.org/jdk/pull/18411/files/fff8e324..15d0b85f

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=18411&range=16
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=18411&range=15-16

  Stats: 332660 lines in 3650 files changed: 82344 ins; 235053 del; 15263 mod
  Patch: https://git.openjdk.org/jdk/pull/18411.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18411/head:pull/18411

PR: https://git.openjdk.org/jdk/pull/18411