Checksum is used to best describes the method or file that you will be used to determine the authenticity of the package that you downloaded from a vendor.
What is Checksum?
You generate a checksum by running a program that runs a file through an algorithm. MD5, SHA-1, SHA-256, and SHA-512 are common algorithms for this.
The algorithm employs a cryptographic hash function to generate a fixed-length string (a sequence of numbers and letters) from an input. The input file can be as small as 1 MB or as large as 4 GB, but the checksum will be the same length in either case. Checksums are also known as "hashes".
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