[pkcs11] Key Import proposal update

["Cohen, Doron" <Doron.Cohen@safenet-inc.com>]

I am attaching two documents with the new mechanisms proposal for the secure key import . 

The first is an updated description for key import using an RSA key . This copy only includes minor and typo  fixes - it updates the unwrapping description to indicate the use of CKM_AES_KEY_WRAP_PAD  (rather than CKM_AES_KEY_WRAP) . 

The second is a first cut of the ECC variant  .  

Doron


-----Original Message-----
From: Cohen, Doron 
Sent: Monday, May 20, 2013 3:46 PM
To: 'pkcs11@lists.oasis-open.org'
Subject: RE: [pkcs11] RSA Key Import proposal 

Here is an update to the proposal  taking into account additional input from Mike .

Doron


-----Original Message-----
From: Cohen, Doron
Sent: Thursday, May 09, 2013 11:28 AM
To: pkcs11@lists.oasis-open.org
Subject: RE: [pkcs11] RSA Key Import proposal 

On 4/2/2013 7:12 PM, StJohns, Michael wrote:
>
>If you're worried about misuse of the AES key, then instead, how about defining a mechanism - CKM_RSA_AES_KEYWRAP?   This defines a mechanism 
>which first unwraps the AES key using RSA, and then uses the AES key 
>wrap mechanism to unwrap the actual data?  The AES key gets implicit 
>attributes  (and actually never gets a public handle) when unwrapped, and goes away once the other key is unwrapped.  The template on the original RSA private key applies to the finally unwrapped new RSA private key.
>
>On the wrapping side, the AES key is generated internally, wraps the data, is encrypted under the RSA public key, and then zeroized.
>
>For an elliptic curve equivalent you probably need something like CKM_ECIES_AES_KEYWRAP.

Attached is the first draft of the proposed mechanism for secure key import using an RSA key.   
Assuming this is acceptable, I will provide the elliptic curve equivalent so both merged with the 2.4 new mechanisms document .


Doron





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Attachment: pkcs11-ckm-rsa-aes-key-wrap-r1-3.doc
Description: pkcs11-ckm-rsa-aes-key-wrap-r1-3.doc

Attachment: pkcs11-ckm-ecdh-aes-key-wrap-r1-3.doc
Description: pkcs11-ckm-ecdh-aes-key-wrap-r1-3.doc