Ping!! > -----Original Message----- > From: Stephan Mueller <smueller@xxxxxxxxxx> > Sent: Friday, May 24, 2019 12:50 PM > To: Kalyani Akula <kalyania@xxxxxxxxxx>; keyrings@xxxxxxxxxxxxxxx > Cc: herbert@xxxxxxxxxxxxxxxxxxx; davem@xxxxxxxxxxxxx; linux- > crypto@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; Sarat Chand Savitala > <saratcha@xxxxxxxxxx> > Subject: Re: [RFC PATCH 4/5] crypto: Adds user space interface for > ALG_SET_KEY_TYPE > > Am Mittwoch, 8. Mai 2019, 11:31:08 CEST schrieb Kalyani Akula: > > Hi Kalyani, > > > Hi Stephan, > > > > Keyrings is in-kernel key-management and retention facility. User can > > use it to manage keys used for applications. > > > > Xilinx cryptographic hardware has a mechanism to store keys in its > > internal hardware and do not have mechanism to read it back due to security > reasons. > > It stores key internally in different forms like simple key, key > > encrypted with unique hardware DNA, key encrypted with hardware family > > key, key stored in eFUSEs/BBRAM etc. > > Based on security level expected, user can select one of the key for > > AES operation. Since AES hardware internally has access to these keys, > > user do not require to provide key to hardware, but need to tell which > > internal hardware key user application like to use for AES operation. > > > > Basic need is to pass information to AES hardware about which internal > > hardware key to be used for AES operation. > > > > I agree that from general use case perspective we are not selecting > > key type but selecting internal hardware keys provided by user. How > > about providing option to select custom hardware keys provided by > > hardware (AES_SEL_HW_KEY)? > > I am not intimately familiary with the keyring facility. Thus, let us ask the experts > at the keyring mailing list :-) > > > > > Thanks > > kalyani > > > > > -----Original Message----- > > > From: Stephan Mueller <smueller@xxxxxxxxxx> > > > Sent: Thursday, April 25, 2019 12:01 AM > > > To: Kalyani Akula <kalyania@xxxxxxxxxx> > > > Cc: herbert@xxxxxxxxxxxxxxxxxxx; davem@xxxxxxxxxxxxx; linux- > > > crypto@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx > > > Subject: Re: [RFC PATCH 4/5] crypto: Adds user space interface for > > > ALG_SET_KEY_TYPE > > > > > > Am Montag, 22. April 2019, 11:17:55 CEST schrieb Kalyani Akula: > > > > > > Hi Kalyani, > > > > > > > > Besides, seem to be more a key handling issue. Wouldn't it make > > > > > sense to rather have such issue solved with key rings than in > > > > > the kernel crypto API? > > > > > > > > [kalyani] Can you please elaborate on this further ? > > > > > > The kernel has a keyring support in security/keys which has a user > > > space interface with keyutils. That interface is commonly used for > > > any sort of key manipulation. > > > > > > Ciao > > > Stephan > > > > Ciao > Stephan >
