This tool isn't only for comparing the checksum, but also for compressing and decompressing files and folders. The first thing we are going to do is download a program for Windows called 7-Zip.
In this article, I will demonstrate how to compare the SHA-256 hash of a file downloaded with the one provided by the file's author first on a Windows system, and then on Kali Linux. This kind of attack is a weakness in SHA-1 and other cryptographic functions but takes significant time and resources to attempt to exploit.ĭon't Miss: Make an Unbreakable Linux Password Using a SHA-2 Hash Algorithm If you can cause two different files to generate the same checksum, this creates an extremely rare condition called a collision.
In essence, when we calculate a hash, it is a one-way cryptographic function, meaning a change to a single bit will generate a new, seemingly random number that is very hard to arrive at again.
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