How to Calculate SHA1
An SHA1 value is a hexadecimal number that is obtained after applying the SHA1 cryptographic algorithm to a data set. The SHA1 value is used to ensure the file has not been changed or become corrupt in instances such as network transfer or through malicious attack. The use of a SHA1 value is an easy process that any computer user can utilize to ensure data integrity.
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Instructions
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Navigator web browser to hashsum.com. You will need Microsoft Silverlight to run this application. If required a link is provided on the page.
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Click the "Load" button located in the top portion of the cryptographic calculator located in the center of the webpage.
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Select the file whose SHA1 value you would like to obtain utilizing the dialog box provided.
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Click the "SHA-1" button located in the middle portion of the calculator. This will produce an SHA1 hashing key that will be displayed in the lower portion of the calculator.
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Record this hexadecimal value for later comparison to ensure data integrity.
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