On Tue, 6 Apr 2021 14:26:00 GMT, Martin Balao <mba...@openjdk.org> wrote:

>> src/jdk.crypto.cryptoki/share/classes/sun/security/pkcs11/P11Cipher.java 
>> line 265:
>> 
>>> 263:                 // NSS requires block-sized updates in multi-part 
>>> operations.
>>> 264:                 reqBlockUpdates = ((tokenLabel[0] == 'N' && 
>>> tokenLabel[1] == 'S'
>>> 265:                         && tokenLabel[2] == 'S') ? true : false);
>> 
>> IIRC, depending on how the impl is registered, engineSetPadding(String) may 
>> not always be called. It's probably safer to set this in engineInit(...)?
>
> Looks to me that engineSetPadding is always called from the P11Cipher 
> constructor. I thought that was a good location to set the reqBlockUpdates 
> variable because it's next to the paddingObj initialization; which is a 
> pre-requisite for reqBlockUpdates to be used. In other words, if we have no 
> Java-side padding (paddingObj == null), reqBlockUpdates won't be used and we 
> don't even pay the price of setting it.

Ok.

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

PR: https://git.openjdk.java.net/jdk/pull/2510

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