> This PR updates the cipher transformation parsing and verification logic to 
> be stricter and throws NoSuchAlgorithmException (NSAE) when additional 
> slash(es) is found. With the existing parsing logic, the extra slash(es) is 
> likely to end up in the last component, i.e. the padding scheme, and lead to 
> NoSuchPaddingException (NSPE) from the underlying CipherSpi object. 
> 
> Out of the supported cipher algorithms for all JDK providers, PBES2 cipher 
> algorithms and RSA cipher with OAEP paddings may contain truncated SHA-512 in 
> their transformations. This proposed fix would check for truncated SHA in 
> both algorithm and padding schemes and throws NSAE if any extra slash is 
> found. 
> 
> Thanks in advance for the review~

Valerie Peng has updated the pull request incrementally with one additional 
commit since the last revision:

  Updated based on Weijun's suggestion.

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/27615/files
  - new: https://git.openjdk.org/jdk/pull/27615/files/5b29656b..6fa2a15f

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=27615&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=27615&range=01-02

  Stats: 61 lines in 1 file changed: 9 ins; 15 del; 37 mod
  Patch: https://git.openjdk.org/jdk/pull/27615.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27615/head:pull/27615

PR: https://git.openjdk.org/jdk/pull/27615

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