Re: [PATCH 3/5] crypto: add RFC5869 HKDF

2021-01-07 Thread Eric Biggers
On Thu, Jan 07, 2021 at 08:53:15AM +0100, Stephan Mueller wrote: > > > > > RFC5869 > > > allows two optional parameters to be provided to the extract operation: > > > the salt and additional information. Both are to be provided with the > > > seed parameter where the salt is the first entry of the

Re: [PATCH 3/5] crypto: add RFC5869 HKDF

2021-01-06 Thread Stephan Mueller
Am Mittwoch, dem 06.01.2021 um 23:30 -0800 schrieb Eric Biggers: > On Mon, Jan 04, 2021 at 10:49:13PM +0100, Stephan Müller wrote: > > RFC5869 specifies an extract and expand two-step key derivation > > function. The HKDF implementation is provided as a service function that > > operates on a calle

Re: [PATCH 3/5] crypto: add RFC5869 HKDF

2021-01-06 Thread Eric Biggers
On Mon, Jan 04, 2021 at 10:49:13PM +0100, Stephan Müller wrote: > RFC5869 specifies an extract and expand two-step key derivation > function. The HKDF implementation is provided as a service function that > operates on a caller-provided HMAC cipher handle. HMAC isn't a "cipher". > The extract fun

[PATCH 3/5] crypto: add RFC5869 HKDF

2021-01-04 Thread Stephan Müller
RFC5869 specifies an extract and expand two-step key derivation function. The HKDF implementation is provided as a service function that operates on a caller-provided HMAC cipher handle. The caller has to allocate the HMAC cipher and then can invoke the HKDF service functions. The HKDF implementati