How to check the checksum of the file

In the modern world the same digital content can be obtained from different sources. Therefore, it is important to ensure the integrity of the data used. A simple way to check integrity is the computation and comparison of checksums. For example, you can check the control sum of the file distribution software downloaded from torrent network by comparing it to the value published on the website of the developer.

You will need

• - file Manager Total Commander.

Instruction

1. Find the Total Commander a file checksum which you want to check. Run Total Commander. In one of the panels will change the current drive to the one that holds the desired file. You can use the buttons or drop-down list located on the top toolbar. Making double clicks on the list items, directory listing, change directory to the file. Select it in the list.
2. Open the parameters dialog of the calculation of the checksum files. To do this in the main application menu, expand "File" and then click on "Create SFV-checksum file (CRC)...".
3. Configure the parameters of the formation of checksums. In the dialog "Create SFV file checksum (CRC), select "MD5" if you want the calculation result of the checksum file was an MD5 hash (the majority of checksums that are published on the Internet, are just MD5 hashes). Clear the check box For each file to create separate SFV file". In the "Save file(s) checksums like:" enter the path and name of the file that will contain the result of the checksum calculation.
4. Calculate the checksum of the file. In the dialog "Create SFV file checksum (CRC), click "OK". Begin the process of calculating the checksum. The process will display a progress bar in the window that appears. If the volume the source file is large, the checksum calculation may take a long time. Wait until the end of the operation.
5. Check the checksum of the file. Open the file checksum with a text editor or viewer. In particular, you can use the built-in Total Commander options. To do this, select the generated file checksums in panel of Total Commander and press F3. The file will contain a string that is structured in two parts. The first part before the sign " * " is a symbolic representation of the checksum file. Compare this string with a known checksum value.