RFR: 8342183: Update tests to use stronger algorithms and keys [v2]

[Fernando Guallini]

> Several tests are identified to use weak/legacy algorithms. As these tests purpose is not to exercise weak algorithms, these are updated in this PR to use stronger algorithms. If the test uses a weak key, it is updated as well.

Fernando Guallini has updated the pull request incrementally with one additional commit since the last revision:

  add more algos to TestExplicitKeyLength.java

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Changes:
  - all: https://git.openjdk.org/jdk/pull/21578/files
  - new: https://git.openjdk.org/jdk/pull/21578/files/c54acca6..0f03ca0b

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=21578&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=21578&range=00-01

  Stats: 3 lines in 1 file changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/21578.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21578/head:pull/21578

PR: https://git.openjdk.org/jdk/pull/21578