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HashCheck Shell Extension for Windows with added SHA2, SHA3, and multithreading; originally from code.kliu.org

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Hi, Today I've been switching my hashes from md5 and sha1 to Blake3. To do so, I've been running my previously calculated hashes to make sure my data was fine...

Once double-clicking a checksum file to verify its checksums, it will do so for every specified file. Sometimes however I'm not interested in verifying the checksum of a very large...

As crazy as it sounds, there doesn't seem to be any native Linux checksum-creation programs that supports the ability to create create checksum files for recursive data (i.e. for files...

For whatever reason, on my dual-core Haswell CPU, I measured MD4 to actually be the fastest... (yes, faster than even CRC32). So for many years I've been using MD4 with...

When you right-click on any file in Windows Explorer, select Create Checksum File..., and then save it to a child folder, the relative path is inaccurate and the hash file...

Currently, if only one file is selected when creating a checksum file, the suggested file name is that of the selected file. If _more_ than one file is selected when...

There is no standard hash file format, but there are a few adopted defacto standards. Fortunately, all of the likely standards are pretty cross/backwards compatible and apparent. These are the...

During major Windows 10 Feature Updates the install of HashCheck gets clobbered and needs to be reinstalled. Update the installer (or change installers) to save HashCheck in a location that...

One issue that I encounter regularly is trying to verify multiple hash files, all at once, which creates a huge drag with the harddisk attempting to read multiple files in...

add xxHash3_128 for speed www.xxhash.com/