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Subject: Question w.r.t CKM_AES_KEY_WRAP_PAD



we came across the following question w.r.t PKCS#11 V2.40, chapter 2.14 AES Key Wrap:

Section 2.14.2 “AES Key Wrap Mechanism parameters” gives the possibility of specifying some initial value. That makes sense for CKM_AES_KEY_WRAP, and is in line with [AES KEYWRAP]. The way we understand this section is that such initial value could also be provided as mechanism parameter for  CKM_AES_KEY_WRAP_PAD. Yet RFC5649 does not foresee any “external” IV.


How to deal with this? Just ignore any IV specified as mechanism parameter for CKM_AES_KEY_WRAP_PAD? Or be more restrictive and return an error? Or do we get something wrong? Can somebody please advise.





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