The SHA1 file extension indicates a checksum file. These files verify data integrity of downloaded files. After downloading a file, the user can generate a hash of that file and compare it to the hash...
The SHA1 file extension indicates a checksum file. These files verify data integrity of downloaded files. After downloading a file, the user can generate a hash of that file and compare it to the hash in the accompanying SHA1 file. If the hashes match, the download was successful.
SHA1 files contain simple text, usually a 40 character alphanumeric string. They are produced by the SHA-1 cryptographic hash function. SHA stands for Secure Hash Algorithm, and SHA-1 was published as a Federal Information Processing Standard.
To open a SHA1 file, use any text editor such as Notepad (Windows), TextEdit (Mac), or gedit (Linux). No special software is required.
Issues opening SHA1 files usually indicate a problem with the associated program configuration, not the file itself. Potential problems include file corruption, missing registry entries, or incomplete installation of a SHA1-compatible program.
HashCheck Shell Extension
sha1sum