Am Donnerstag, 19. Februar 2015, 21:48:30 schrieb sri sowj: Hi sri, > Hi , > > I am trying to understand Hashing Algorithms implementation in linux kernel > . > > I am really not sure on how to deal with following scenario. > > assume when App1 is in middle of > execution(crypto_ahash_init/update/update...) ,App2 sends a request > may be from another cpu in multi-core system to underlying crypto > driver . > Then essentially input1 has to save its state(intermediate Hash) and > serves App2 request. > > App1 ---------> Linux kernel crypto driver > > crypto_ahash_init(input1); > crypto_ahash_update(input1); > .................. > .................. > crypto_ahash_update(input1); // multple Hash requests > .................. > .................. > crypto_ahash_final() > > > > App2 ---------> Linux kernel crypto driver > > crypto_ahash_init(input2); > crypto_ahash_update(input2); > > > Here in this scenario how to track,save and restore the Hash state for App1 > ? The ahash (ablkcipher too) uses kernel threads. Those are scheduled like normal processes, including the context switching. > > BR, > Srisowj > -- > To unsubscribe from this list: send the line "unsubscribe linux-crypto" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Ciao Stephan -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
