checksum

Using sha256sum command for ensuring file integrity

By Karunesh Johri • Updated: May 21, 2023

1.0 SHA-2 A cryptographic hash function (CHF) is an algorithm to map arbitrary size data, called the message, to a fixed sized bit array, called the hash value, or message digest. It is a one way function. It is not feasible to generate the original message from the hash value. A small change in the …

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Tags: checksum, cryptographic hash function, file, integrity, secure hash algorithm, sha-2, sha256, sha256sum

md5sum: no properly formatted MD5 checksum lines found

By Karunesh Johri • Updated: May 27, 2023

md5sum is used for printing or checking a file's 128-bit MD5 checksum. One can download a file on the Internet and also download its checksum. The md5sum command can, then, be used to verify whether the file has been correctly received. Also, while providing a link for download for a file on a web page, …

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Tags: checksum, error, formatted, md5sum, properly