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# | Post Title | Result Info | Date | User | Forum |
Re: Galaxy S5 Mini - Fingerprint replication | 94 Relevance | 9 years ago | CatimbaBR | General (Technical, Procedural, Software, Hardware etc.) | |
To better "lift" the vinilic glue from the print, you may want to try using instead of "normal" transparent paper the self-adhesive type which is more glossy, thus glue should bond less strongly or, as actually advised herehttp//dasalte.ccc.de/biometrie/fingerabdruck_kopieren.enthe kind for slide projection. jaclaz Actually I'm trying to use the exact same techniques. o The first thing I need to do is to better lift the glue as you said. I don't have any information about the thickness of the glue layer. The layer I've managed to lift was very thick. When I tried to do a thin one, I cannot lift it! How much glue should I put on it? Another thing I have noticed is that with the transparency sheets that I bought when I put the glue over the image, it starts to deteriorate as if the toner was 'melting'. It would be like moistening a piece of paper. The image starts to get blurred. Other aspect! My transparency sheets have a plastic side and a side that is 'mat'. I should print on the second side, right? The problem is that side also has a very very thin layer of plastic and when I am lifting the glue this plastic which should remain attached to the transparency detaches with the glue. What is this other type of transparency you said? I'm thinking to buy this other one but I don't really know what it is. I'm also thinking about putting a very thin layer of liquid glycerin to facilitate the lifting. | |||||
Re: GAS PUMP SKIMMER!!! | 92 Relevance | 9 years ago | jhup | General (Technical, Procedural, Software, Hardware etc.) | |
Cyanoacrylates will not melt the plastic part of the USB connector. It is the thinner or solvent that comes in the storing packages (often acetone) that causes the target plastics to melt. That is, to keep "Super glue" viscous, acetone is added to the packaging. The "super glue" is squeezed out of the tube, the acetone evaporates, solidifying the "super glue". While the acetone is evaporating, it can eat away other plastics around the exposed "super glue". "Super glue" can be used to lift fingerprints from non-porous surfaces specifically using the fumes from them. | |||||
Re: safely removing external HDD fails due to System $extend | 70 Relevance | 11 years ago | jaclaz | General (Technical, Procedural, Software, Hardware etc.) | |
3rd question I have read on internet that if nothing works for properly ejecting external storage media, you can safely remove them by simply shutting down PC. Is this true? If so, this is made through a command on cmd or simply is made by turning off usually the computer button with the mouse? A switched off PC (if using an ATX power supply) still has some power to allow wake on lan keyboard key press for switching on Now, would you think probable that some of this low power is used to keep the $Extend locked on an arbitrary external HD? Do you think that different methods to switch off a PC will result in a different kind of "off" status? About (You told me some other options but my level of knowledge doesn´t allow me to understand them properly) Maybe you should try and improve your level of knowledge. ? Carpenter's exampleQ. I need to connect two pieces of wood together, how can I do that?A. You can use nails (driving them with a hammer), screws (driving them with a screwdriver), glue (spreading some glue on the two surfaces to be joined) or hot glue (applying it with a hot glue gun).Q. I am sorry, but I cannot use a hammer, don't know how to turn a screwdriver to drive a screw, have no glue and I am simply scared of using a hot glue gun, so I just placed the two pieces of wood one over the other and I am waiting some time to see if they will become joined by themselves.A. Good luck with your attempt. Do you want to try and solve your issue or just make "random" attempts but the ones needed because these random ones are less "difficult" than the actually needed/suggested steps? jaclaz | |||||
Re: Galaxy S5 Mini - Fingerprint replication | 47 Relevance | 9 years ago | PaulSanderson | General (Technical, Procedural, Software, Hardware etc.) | |
Can you do something to enhance the fingerprint in a similar manner to the glue trick you see on csi etc. AIUI the glue vapour binds to the oils in a print on a hard surface. Would glue bind to the graphite in a similar manner, if not could you introduce some oil to the raised edges from the print in someway and then try glue? | |||||
Re: Galaxy S5 Mini - Fingerprint replication | 47 Relevance | 9 years ago | jaclaz | General (Technical, Procedural, Software, Hardware etc.) | |
I never tried that, but I guess, one must use a glue mixture, that is recognised by capacitive sensors.Unlike iPhones, the Galaxy S5 devices contain a swipe reader that is activated by sensing the lower screen area above the home button. So it might seem to be alright with a very thin fake fingerprint on a real digit, since you can interact with the touch-screen. However, the capacitive fingerprint reader must recognize the tiny valleys of the fake fingerprint and not only the presence of a digit. This probably won't happen, when using some off-the-shelf glue. I'd try to make thick "fake digits" from a mixture with toner, dactyloscopy powder or something else, which is recognized by the touch screen without a human finger behind it. Then the engraved fingerprint in this material should be recognized as well. Well, not according to the people that actually published the hackhttps://nakedsecurity.sophos.com/2014/04/17/samsung-galaxy-s5-fingerprint-hacked-iphone-5s-all-over-again/ In fact, in the SRLabs video showing the Galaxy S5 being tricked, the researchers say that the wood glue replica they used was left over from last October when they were having a crack at the iPhone 5s. It is entirely possible that your "modified" hack works fine or even better, but the original uses thin, "normal" wood glue fingerprint replica. jaclaz | |||||
Re: Galaxy S5 Mini - Fingerprint replication | 24 Relevance | 9 years ago | C.R.S. | General (Technical, Procedural, Software, Hardware etc.) | |
It is entirely possible that your "modified" hack works fine or even better, but the original uses thin, "normal" wood glue fingerprint replica. Meanwhile, I had a look at Karsten's videos. The iPhone edition covers the entire manufacturing process https://www.youtube.com/watch?v=h1n_tS9zxMcThey use graphite spray to achieve surface capacitivity. I know crews who are into this, and that they are constantly experimenting with different glue mixtures. I just didn't know, whether for mechanical or dielectic reasons. | |||||
Re: Galaxy S5 Mini - Fingerprint replication | 24 Relevance | 9 years ago | jaclaz | General (Technical, Procedural, Software, Hardware etc.) | |
Have you had any luck getting the scanner to pick up your "replica" print yet? If not were you able to rule out the scanner being faulty? In fact it is not about using one finger or another. The sensor is not recognizing the 'glue'. If I touch it with my finger it will say that the fingerprint is invalid. With the glue replication…nothing! jaclaz | |||||
Re: Galaxy S5 Mini - Fingerprint replication | 35 Relevance | 9 years ago | jaclaz | General (Technical, Procedural, Software, Hardware etc.) | |
I know crews who are into this, and that they are constantly experimenting with different glue mixtures. I just didn't know, whether for mechanical or dielectic reasons. Yep, and surely (as demonstrated in the now old article by Matsumoto et alia I posted a link to) each sensor may have its specific "likes" or "dislikes", my gut feelings/instinct tell me that the "original" gummy gelatin is probably the most similar to human flesh/skin in all regards, still at least in first experiments I would try to replicate EXACTLY what the guys that "invented" the specific hack introducing NO changes, the process does involve graphite spray, and the reason why is clearly described in the actual iPhone articlehttp//www.ccc.de/en/updates/2013/ccc-breaks-apple-touchid A thin coat of graphite spray is applied to ensure an improved capacitive response. This also makes it easier to remove the fake fingerprint. Finally a thin film of white wood glue is smeared into the mold. After the glue cures the new fake fingerprint is ready for use. However from that article it seems how the original method of casting directly in the print is less reliable than the "improved" (and "more complicated") cast made out of a photimpressed/etched PCB. It is likely that the combined effect of a very thin "fake fingerprint" and "breathing on it" is the key in the successes (however reportedly less reliable than the "updated" method) and the show stopper in this case, and until the OP doesn't find a suitable printing material that allows for an easier "lifting" of a thinner casted thingy, is the excessive thickness. jaclaz | |||||
Re: Broken CD Project | 35 Relevance | 12 years ago | markg43 | General (Technical, Procedural, Software, Hardware etc.) | |
I make no promises and unfortunately, this is going to be like physical forensics. You MAY destroy the evidence in the attempt to retrieve. Perform at your own risk. First off, you have to fix the CD. Couple ways to try - get one of the CD blanks from a stack of new disks. You know, the one see through plastic CD thingys that you see on the top and bottom of the stack. Then get some glue - preferably spray on so you get a thin even coat. Now try to mount the broken CD onto the blank (glue the blank onto the top of the broken CD). Alignment will be crucial - use a microscope or something. Helps if the glue is slow setting so you can move the broken one around for a bit. The other way to mount it is to get a sheet of sticky laminate, the clear stuff you put over paper. This is less forgiving because it will set as soon as you stick it. Those are my ideas for fixing the CD. ——————— Data recovery - get as OLD a CD drive as you can. The slower the better. I have heard that very old SCSI CD drives - circa early-mid 1990s are good. The guys at Infinadyne (the CD recovery experts) recommend Plextor 12-10-32 and 12-4-32 CD-RW (though these are not as old as SCSI, but easier to obtain). See if CD/DVD inspector has a trial license. You might even email the company (it is a Mom & Pop shop - literally) and see if they have ideas. Finally - read everything you can at this site http//www.infinadyne.com/forensicsoftware.html Good luck. I would have been nicer if the disc had not been broken fully apart. | |||||
Re: Galaxy S5 Mini - Fingerprint replication | 24 Relevance | 9 years ago | CatimbaBR | General (Technical, Procedural, Software, Hardware etc.) | |
Great guys! If anyone here has another tip… D I will try to - buy higher quality transparency to do it all over again- put some glycerin below the glue layer (don't think it is going to work)- Make a mixture with glue and graphite powder (does the sensor reacts to that?) |
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