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woctezuma/15daysofgames_md5_image.md

Created December 27, 2021 21:47
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15 days of games: MD5 hash in image URL
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15daysofgames_md5_image.md

During 15DaysofGames on the Epic Games store (EGS), there is a daily image with a hint for the next free game.

The image URL ends with a sequence of 32 hexadecimal digits, which is a MD5 hash of the image file.

For instance, the suffix f4612a5072187a111e04008abac8af85 is a MD5 hash in this image URL.

The upload & analysis of the image on a website like fotoforensics.com shows that this MD5 hash is the hash of the image file.

Digest

NB: the website fotoforensics.com concatenates the SHA1 hash and the file size to reference the URL of the analysis.

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