RFR: 8325513: Export method for Cipher

[Sean Mullan]

On Wed, 20 Mar 2024 20:37:46 GMT, Weijun Wang <weijun at openjdk.org> wrote:

> Add `Cipher::export` API.

src/java.base/share/classes/javax/crypto/Cipher.java line 2625:

> 2623:      * @since 23
> 2624:      */
> 2625:     public final SecretKey export(byte[] context, String algorithm, int length) {

Change name to `exportKey`.

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PR Review Comment: https://git.openjdk.org/jdk/pull/18409#discussion_r1596721747