On Fri, 2022-12-16 at 12:08 +0100, Wiktor Kwapisiewicz wrote: > Hi Tomáš, > > On 16.12.2022 11:53, Tomas Mraz wrote: > > Of course once you feed the data to EncryptUpdate by chunks sized > > smaller than block size, there logically has to be some caching > > involved as a block cipher must encrypt only full blocks unless > > there > > is some padding involved but that applies only to the last block. > > Okay, if I understood you correctly there's no API to ask an already > intitialized EVP_CIPHER_CTX object about the cache as this is > implementation detail? > > (I thought EVP_CIPHER_CTX_get_num would do that but apparently > not...) Yep, there is no such API. Especially the provider interface does not provide any such call. -- Tomáš Mráz, OpenSSL
