Integrated: 8365581: Optimize Java implementation of P256 arithmetic

[Ben Perez]

On Fri, 15 Aug 2025 01:01:01 GMT, Ben Perez <bperez at openjdk.org> wrote:

> There are several places where MontgomeryIntegerPolynomialP256.mult() can be optimized. In particular, since modulus[2] = 0 several multiplications can be removed. Other multiplications can be replaced by shifts, which also saves time. Preliminary tests indicate an improvement between 5-10%.

This pull request has now been integrated.

Changeset: 72e5ad3d
Author:    Ben Perez <bperez at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/72e5ad3d21effff6a4efae8ab3ed45c4f6bfba76
Stats:     20 lines in 1 file changed: 1 ins; 15 del; 4 mod

8365581: Optimize Java implementation of P256 arithmetic

Reviewed-by: jnimeh

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PR: https://git.openjdk.org/jdk/pull/26792