tag:blogger.com,1999:blog-3494073750236045538.post4946744672868390270..comments2024-03-28T03:18:02.100-04:00Comments on @ToughLoveforX: MPS: QR codes can eliminate the waste of taking attendance and make school security much better, faster, cheaperCoordinator of the Printernet Projecthttp://www.blogger.com/profile/08225553436567452557noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-3494073750236045538.post-87677989094728960762009-06-15T03:21:21.962-04:002009-06-15T03:21:21.962-04:00Thanks for clarifying. But I still don't see t...Thanks for clarifying. But I still don't see the totally insecure, part. If a QR were printed on a student's ID how would tampering mitigate the security of the card? No doubt some high school kids would figure out a way to get their friends to "scan" them in, but if it's connected to a system that sends mom a SMS in the AM that loop creates the appropriate expectation that would change behavior.<br /><br />On a closer read re the Canadian story, turns out you are correct and I'm not.<br /><br />I read the story at http://tinyurl.com/q68d74, I wanted to read, instead of the story as it was.<br /><br />Thanks for the correction. It does help.Coordinator of the Printernet Projecthttps://www.blogger.com/profile/08225553436567452557noreply@blogger.comtag:blogger.com,1999:blog-3494073750236045538.post-66419064165646296282009-06-15T02:56:50.770-04:002009-06-15T02:56:50.770-04:00>I went to the post, but all I saw were a group...>I went to the post, but all I saw were a group of artists replacing one QR with another.<br /><br />That's what you are supposed to see! And from there move to conclude that QR Codes used in the way you described are totally insecure.<br /><br />>My thinking is that if it is secure enough for Canadian passports, that should be secure enough for a high school.<br /><br />QR Codes are not used on Canadian passports, they are however dynamically generated and used on the application form. Security is not an issue because the QR Code is not used as a positive ID. If the applicant wants to complete the form in the name of Miky Mouse then that is what the QR Code will encode.<br /><br />Hope that helps.Rogerhttp://2d-code.co.uk/noreply@blogger.comtag:blogger.com,1999:blog-3494073750236045538.post-61919246967781286382009-06-14T17:03:07.469-04:002009-06-14T17:03:07.469-04:00I went to the post, but all I saw were a group of ...I went to the post, but all I saw were a group of artists replacing one QR with another.<br /><br />My thinking is that if it is secure enough for Canadian passports, that should be secure enough for a high school.Coordinator of the Printernet Projecthttps://www.blogger.com/profile/08225553436567452557noreply@blogger.comtag:blogger.com,1999:blog-3494073750236045538.post-84417721992777922732009-06-14T15:55:47.078-04:002009-06-14T15:55:47.078-04:00The simple reason why it would not work is that QR...The simple reason why it would not work is that QR Codes are not secure. It is very easy to duplicate a QR Code, for example http://2d-code.co.uk/qr-code-switch/Rogerhttp://2d-code.co.uk/noreply@blogger.com