RFR: 8285404: RSA signature verification should follow RFC 8017 8.2.2 Step 4 [v2]

[Weijun Wang]

> Compare encoded instead of decoded digest in RSA signature verification.

Weijun Wang has updated the pull request incrementally with one additional commit since the last revision:

  only check digest value

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/8365/files
  - new: https://git.openjdk.java.net/jdk/pull/8365/files/a8499bb3..09188779

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=8365&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=8365&range=00-01

  Stats: 37 lines in 2 files changed: 33 ins; 3 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/8365.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/8365/head:pull/8365

PR: https://git.openjdk.java.net/jdk/pull/8365