RFR: 8252377: Incorrect encoding for EC AlgorithmIdentifier [v3]

[Hai-May Chao]

> This change fixes the DER encoding for ECDSA AlgorithmIdentifier to omit the parameters field instead of encoding a
> Null tag.

Hai-May Chao has updated the pull request incrementally with one additional commit since the last revision:

  Added comment for RFC

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/312/files
  - new: https://git.openjdk.java.net/jdk/pull/312/files/edc71d03..4f4e3688

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=312&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=312&range=01-02

  Stats: 5 lines in 1 file changed: 5 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/312.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/312/head:pull/312

PR: https://git.openjdk.java.net/jdk/pull/312