Downloading .sha256 extension files

The .sha256 file is a text file that contains the SHA-256 checksum (SHA-256 hash value) for one or more files. This checksum uniquely identifies the contents of the original file.

You can use a .sha256 file as an optional but recommended way to verify the integrity of your downloaded files, such as, APKs and ZIP archives. After downloading, you can recompute the SHA-256 hash on your device. You can compare the recomputed value with the value in the .sha256 file. If the values match, you can confirm that the file is not corrupted during download and is not changed by a third party.

  1. Select Administration > System Management.
  2. Click the Installer Download tab.
  3. Click to download .sha256 extension files.

Verify checksum on Unix or Linux

  1. Download zip/apk.
  2. Download .sha256 file for the downloaded zip/apk into the same folder.
  3. Run the command sha256sum -c <filename>.sha256.
    Example: sha256sum -c printagent.zip.sha256
  4. Check the output.

    Example: printagent.zip: OK (or FAILED)

Verify checksum on Windows

  1. Download zip/apk.
  2. Download .sha256 file for the downloaded zip/apk into the same folder.
  3. Run the command certutil -hashfile .\<filename> SHA256
    Example: certutil -hashfile .\printagent.zip SHA256
  4. Compare the output with value in .sha256 file.

    Example:

    SHA256 hash of file printagent.zip:
    e3 b0 c4 42 98 fc 1c 14 9a fb f4 c8 99 6f b9 24 27 ae 41 e4 64 9b 93 4c a4 95 99 1b 78 52 b8 55