Chat screenshots thick code is not safe, god wrote an algorithm minutes for you to restore


Jin lei from concave number not temple qubits | public QbitAI tell a story of terror.This morning, I chatted with my colleague on wechat, and we started to talk about the recent changes of a female colleague.Then he blurred the text with his backhand and threw the screenshot into the group. He added @xxx, he said bad things about you. Unexpectedly, the colleague came over and pointed out the contents of the “secret text” directly.At that time I was such: see, the teacher added: what time, think hit Mosaic I can’t recognize?Restore all right!…Curious as I was, I immediately launched an “investigation” into this technology.How to restore the blurred text?Not to mention, Dan Petro, the chief researcher of a foreign company, published such a post two days ago.He hit the nail on the head: pixelation is a very bad, insecure, and potentially dangerous way to expose sensitive data.To test his claim, Dan wrote a tool called Unredacter himself.I then showed you how the tool can restore the pixelated text bit by bit: from the example above, it’s easy to see that even with a thick layer of pixelated text, the tool still looks like running naked in front of it.You might say, well, isn’t that complicated to operate?No, no, no.It’s very simple, just 2 steps: use NPM install to install dependencies, use NPM start to start and restore blurred images. However, a very real problem is that the text restored by Depix does not look very good visually: the text restored by Depix is still messy in some places.So a Jumpsec Lab researcher from abroad pointed this out with an interesting challenge: If you crack the password, please contact us.This challenge intrigued Dan, which is why he developed Unredacter.So, with the help of Unredacter, Dan successfully solved the challenge: Dan then contacted the researcher and confirmed Dan’s results in an email reply:Not only that, Dan says, but things like smudging mosaics, whether in GiMP, Photoshop or any other editor, have the same results.Therefore, his method should be universal.Of course, in life we more or less will have the need of “playing code”, since Mosaic is not safe, that there is no better way?Dan’s answer: Use black bars.There are restored Mosaic pictures in fact, “restore Mosaic” this matter, AI has long been studied.Duke University’s PLUSE, for example, is one of them and has topped the CVPR.But it doesn’t fix words, it fixes people, for example: from a principle point of view, it’s essentially a generative adversarial network (GAN).PLUSE mainly uses fuzzy Mosaic pixels to “draw” new faces that do not exist, then compresses them back into the Mosaic state and compares them with the original image to display similar versions.Of course, the technology isn’t perfect, and there have been rollovers.For example, netizens tried Mario, and the result was…Emmm…This “taste” is not ordinary.One More Thing, the answer to the opening story.It was a hard lesson…Address of the project: https://github.com/bishopfox/unredacter reference links:[1]https://bishopfox.com/blog/unredacter-tool-never-pixelation[2]https://labs.jumpsec.com/can-depix-deobfuscate-your-datA / [3] https://arxiv.org/abs/2003.03808 – the – qubit QbitAI, focusing on our signing in the headline number, first learn cutting-edge technology and dynamic

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