Verifying Checksums

JotTek provides Secure Hash Algorithim 256 (SHA-256) Checksums for manuals, drivers and firmware upgrades to ensure that the version you have is not tampered with or corrupt.

The best way to identify the SHA-256 checksum of a file is by using a file management program like 7-Zip and right clicking on the file. 7-Zip is popularly known as a file archiver with a high compression ratio and is compatible with Windows 2000 and later.

7-Zip Example

Additionally, you can view SHA-256 checksums on computers running Windows 7 or later via the Command Prompt. Note that computers running Windows XP or Vista are not capable of calculating SHA-256 checksums via the Command Prompt.

JotTek does not list older SHA-1 or MD5 checksums as SHA-256 is the industry standard. Older cryptographics are prone to possible same-hash collisions, and 7-Zip is recommended for more convenient calculation.

Command Prompt Example
certutil -hashfile C:\folder\file SHA256

You can then compare the checksum listed onto JotTek to determine the integrity of your version. Every checksum listed onto JotTek is downloaded and verified from the manufacturer.