QR Codes for Files on Google Code
The QR code contains the file URL not the file SHA1 Checksum. If you check the html for the image you will see the title text says "File download URL". It is common to see these codes in situations where you may need to download the file to a mobile device or access the webpage from a mobile phone..
Programs like QuickMark can be used to scan the QR Code from your phone, and if a site doesn't provide a QR Code you can use something like this Google Chrome QR Code extension to automatically generate one. I use both of these and use them once or twice a month.
You basically then just use the camera on the phone to take a picture of the webpage while it is displayed on your desktop computer and open the URL in the mobile browser, sort of like Copy & Paste between two computers.
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Synetech
Sadly, I’ve become soured by the SE network. It started great, but went downhill. Some mods are too aggressive/bias, policies are arbitrarily/capriciously/selectively applied, and some users treat the sites as MMOGs, “rep-whoring”, copying others’ work, and posting random guesses to game the system by abusing and exploiting auto-bounty assignment. I care(d) about the integrity of the site, so I feel anywhere that allows such disreputable behavior isn’t somewhere worth staying. My OCD not withstanding, I won’t be contributing much here anymore and will find somewhere else to help people. I apologize to all of the people I would have helped here in the future. Press the chemise key to continue… 😈 Images As a visual-learner, I often add images to my posts to make them more effective. Sometimes I take photos, sometimes I create them with software, sometimes I find them through Google Images or Wikipedia. Mod I’ve been asked hey bro, y u no b mod? get u POWR! impr0ve site (or some other variation). I had considered it and was even tempted to run a few times, but I just have too much to do already, so I can’t take on that kind of commitment when I know I won’t be able to do as good a job as I’d like, or as Sweet Brown would say, ain’t nobody got time fo’ dat. Besides, as the behavior of the other mods became more and more apparent, I realized that it would be pointless.
Updated on September 17, 2022Comments
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Synetech almost 2 years
When you download files from Google Code now (example), in addition to the text version of the SHA1 hash, it includes a QR code of it.
The device that the file was downloaded to is the one that has to hash the file. But, if it can download the file (ie, has access to the webpage), it also has access to the text version of the hash, so the QR code seems completely useless—and more work to decode when the raw text is available. How would reading the hash into a mobile phone allow you to verify the file you download to the computer? Or if you download the file to the phone, how would you use the phone to take a picture of the QR code displayed on the webpage on its own screen?
Does anyone know what the point to the QR code is or how you would use it to verify the downloaded file (I don’t mean QR codes in general, but specifically in this context).
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Synetech about 14 yearsThanks; like I said, I know what and how to use QR codes, I just don’t understand why they are using it in Google Code in this manner. If it is the URL of the file, then they put it in the wrong place. The way they structured the page makes it confusing, and makes it look like the code is the hash since QR codes are used as hashes as well.