Brute force attacks on passwords

U ovom radu prikazani su razni načini pohrane zaporki i problemi koji proizlaze iz načina različitih pohrane. Predstavljene su i različite vrste napada na zaporke. S obzirom na učinkovitost napada grafičkim procesorom, predstavljen je i algoritam scrypt koji je otporan na napade grafičkim procesorom. Izmjerena su vremena potrebna za provedbu napada pomoću običnog i grafičkog procesora za različite duljine zaporki i različite kriptografske algoritme koji se koriste za zaštitu zaporke.This paper presents various ways of storing passwords and problems arising from different storage methods. Different types of password attacks are also presented. Considering the efficiency of GPU attacks, the scrypt algorithm, which is resistant to GPU attacks, was also presented. The time required to perform an attack using a regular processor and GPU for different password lengths and different cryptographic algorithms used to protect the password was measured