On 27.09.2017 11:08, Herbert Xu wrote: > On Tue, Sep 26, 2017 at 01:09:05PM +0200, Kamil Konieczny wrote: >> >> Can import() be called without _any_ init(), for example >> after reboot of machine ? Is following scenario valid: > > Of course it can. import must restore the state of the request > to that at the time when export was called. > > import does not need to be called after init. init simply resets > the hash state for new update/final calls. > [...] I have more questions, this time about HMAC export/import. In doc, there is stated that key can be copied into context transformation. Should .export copy request context _and_ key used ? Or not ? When processing requests, can I assume the key in transformation is const until .final ? Is is possible to have okey derived from different key then ikey ? I think not. -- Best regards, Kamil Konieczny Samsung R&D Institute Poland
