[jdk8u-dev] RFR: 8320597: RSA signature verification fails on signed data that does not encode params correctly [v3]

[Alexey Bakhtin]

> Almost clean backport from [JDK11 PR](https://github.com/openjdk/jdk11u-dev/pull/2384)
> the only differences in the removed decodeSignature() method

Alexey Bakhtin has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains five commits:

 - Revert copyright date
 - Merge branch 'master' into JDK-8320597
 - Backport 11e4a925bec3c1f79e03045d48def53188b655e6
 - Fix switch statement
 - Backport 334b977259930368160db705c1f2feda0b0e8707

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Changes: https://git.openjdk.org/jdk8u-dev/pull/404/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=404&range=02
  Stats: 85 lines in 2 files changed: 66 ins; 8 del; 11 mod
  Patch: https://git.openjdk.org/jdk8u-dev/pull/404.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u-dev.git pull/404/head:pull/404

PR: https://git.openjdk.org/jdk8u-dev/pull/404