On Thu, 2 Oct 2025 23:14:48 GMT, Valerie Peng <[email protected]> wrote:

> 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~

This pull request has now been integrated.

Changeset: ac73e688
Author:    Valerie Peng <[email protected]>
URL:       
https://git.openjdk.org/jdk/commit/ac73e688b13595b63dcfc9ce0aee76e7262d68c3
Stats:     168 lines in 4 files changed: 50 ins; 58 del; 60 mod

8368984: Extra slashes in Cipher transformation leads to NSPE instead of NSAE

Reviewed-by: weijun

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

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

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