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35 items tagged "scott"
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5:00
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Hack a Day
When you don’t want to use I2C or SPI, and MIDI and DMX are old hat, [Scott] comes along and invents a very strange networking protocol that is just daisy chaining a few Arduinos together with serial connections. Strange as it may seem, this networking protocol actually makes a whole lot of sense. [Scott] is [...]
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5:00
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Hack a Day
Never one to pass up the recycle pile at work, [Scott] usually doesn’t find much. A few old hard drives, maybe a ancient laptop every once in a while, but on very rare occasions he finds something actually useful. This latest haul is a gaggle of stepper motor drivers that, with a bit of work, can [...]
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11:01
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Hack a Day
[Scott] has a pretty nice alarm system at his house – it will give the operator at his alarm company enough information to determine if it’s a fire alarm, burglary, or just a cat walking in front of a sensor. [Scott] wanted to cut out the middle man and receive notifications from his alarm system [...]
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6:21
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Hack a Day
Woo we’re home from Maker Faire! The Hackaday boss man [Caleb] and [Scott], [Phil], and [Andrew] from Squidfoo are back in Springfield, Missouri. I’m safely back in the bosom of Appalachia in Pensyltucky, and we hope every one else at Maker Faire NYC 2012 made it back home safely. Don’t think this is the end of our coverage of [...]
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4:01
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Hack a Day
[Scott] wrote in to us with his simple, but well done RF signal strength meter. As he points out in his post, sometimes an Arduino is overkill, so a Picaxe 08M was used instead. Apparently this was a refresh of a high school project that he did. Certainly many of us would have liked to [...]
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11:15
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Hack a Day
There comes a time in every maker’s career where solderless breadboards won’t do, perfboard becomes annoying, and deadbug is impossible. The solution is to manufacture a PCB, but there’s a learning curve. After learning a few tricks from [Scott]‘s awesome DIY PCB guide, it’s easy to make your own printed circuit boards. There are a [...]
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7:01
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Hack a Day
[Scott] put together a system where he can use pinball score reels as a wireless display. As you can see in the video below, the result is really neat. The sound alone makes this shoot pretty high on our “things that are cool” radar. The display required 24V AC to operate the solenoids that actually [...]
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15:01
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Hack a Day
We try to stick to the 0805 parts because they’re still big enough to solder by hand. But [Scott] shows us that it doesn’t take too many special tools to reflow fine-pitch components at home. In this case he’s using 0402 resistors, a footprint that we consider functionally impossible to solder using an iron. The two parts [...]
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5:01
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Hack a Day
[Lindsay] has a wonderful writeup about a new toy in the shop, an ultrasonic transducer. The 28kHz, 70W bolt-clamped Langevin transducer by itself is not much use, you need a power supply, a horn to focus the energy, and a way to tune it. [Lindsay] starts off by showing how to find out the resonant [...]
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10:01
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Hack a Day
Open source engraving [Scott] wanted to do some v-carving with a CNC router, but couldn’t find software to generate GCode that didn’t cost hundreds of dollars. He ended up doing the sensible thing and wrote his own that will generate tool paths from CXF fonts. We’ll be bookmarking this for when our router project is done. Improving [...]
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9:01
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Hack a Day
For some ungodly reason, [Scott] has a friend that wanted a ‘sexting themed’ Halloween costume. We won’t try to make any presumptions of the creativity or mental stability of [Scott]‘s friend, but the SMS scrolling LED belt buckle he came up with is pretty cool. The belt is based around a $13 scrolling LED belt [...]
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6:01
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Hack a Day
[Scott] wrote in to share a project he is currently working on, a home automation system that relies on Power over Ethernet. While he’s not completely finished, he’s made some great progress, and the work he has done so far definitely piqued our interest. Part of [Scott’s] design relies on some reverse engineered Blackberry screens [...]
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13:47
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SecDocs
Authors:
Sumit Siddharth Tags:
Oracle Event:
Black Hat USA 2010 Abstract: This talk will focus on exploiting SQL injections in web applications with oracle back-end and will discuss all old/new techniques. The talk will target Oracle 9i,10g and 11g (R1 and R2) It is widely considered that the impact of SQL Injection in web apps with Oracle back-end is limited to extraction of data with the privileges of user mentioned in connection string. Oracle database does not offer hacker friendly functionalities such as openrowset or xp_cmdshell for privilege escalation and O.S code execution. Further, as Oracle by design do not support execution of multiple query in single SQL statement, the exploitation is further restricted. The Talk will highlight attack vector to achieve privilege escalation (from Scott to SYS) and O.S code execution, all by exploiting Oracle SQL injections from web applications. As a number of organizations move to compliances like PCI thereby ensuring that the Card data is always stored encrypted with the private key never stored inside the database. The talk will focus on what hackers are doing in the wild to bypass these and to obtain clear text card data when its only stored encrypted or even when its never stored at all.
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6:01
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Hack a Day
Arduino is great, but it sometimes gets in the way due to its entry level style of doing things. One limitation is making your own library that also includes other libraries.[Scott] has sent in a great tutorial that deals with just that issue. He covers how to make your own custom libraries while building off [...]
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12:30
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Hack a Day
[Scott Harden] is drilling teeth by day and designing radios that send secret messages by night. He’s set his sights on the Hellschreiber protocol which was used by the Germans in World War II along with their Enigma encryption system. The protocol is a viable alternative for transmitting and receiving code in environments with too much [...]
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10:22
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Hack a Day
[Scott] found the iCufflinks from Adafruit Industries pretty interesting, but he thought that the stated run time of 24 hours was a bit short. He figured he could improve the product’s power consumption at least a little bit, to improve the overall battery life. From their schematics, he placed an order for parts and built [...]
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12:04
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Hack a Day
[Scott] was recently given a frequency counter, and once he brought it home, he started contemplating how he could possibly make it better. While the counter worked well as-is, he wanted to find a way to record data readings over a reasonably long period of time. He figured that interfacing it with his computer would [...]
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14:01
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Hack a Day
The usual way send data from a microcontroller is either over RS-232 with MAX232 serial ICs, crystals, and a relatively ancient computer, or by bit-banging the USB protocol and worrying about driver issues. Not content with these solutions, [Scott] came up with sound card μC/PC communication that doesn’t require any extra components. [Scott] bought a [...]
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15:01
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Hack a Day
[Scott's] been digging around the back issues of the Internet to find this project. He blew the dust off and sent us a link to an article that traverses the design and build process of a bench power supply. [Guido Socher] does an excellent job of presenting his bench supply project. So many others show [...]
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8:00
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Hack a Day
[Scott] is a big fan of the Arduino platform, and he’s not afraid to admit it. It does all the things he needs, but now and again he would like to use something a bit smaller, without all the bells and whistles the Arduino has to offer. He contemplated using an ATtiny for smaller projects, [...]
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15:21
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Hack a Day
[Scott] is a design and technology master’s student who just came up with The Imaginary Marching Band – virtual band instruments you can wear on your hand. Taking inspiration from Minority Report and the NES Power Glove, the system is able to emulate 6 instruments at this point – A trumpet, trombone, tuba, snare drum, [...]
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13:01
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Hack a Day
[Scott] was looking to source some LCD screens for an upcoming project, and was considering buying them from SparkFun. While the Nokia panels they sell are not expensive, they aren’t necessarily the cheapest option either – especially when building in volume. He searched around for something he could use instead, and settled on Blackberry screens. [...]
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9:55
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Hack a Day
[Scott] built this frequency counter using less than $10 in parts. It’s set up to meter frequencies in megahertz which is fitting since he’s planning to use it with his radio hardware experimentation. But we would find it useful too because our cheap multimeter only reads up to around 4 MHz. He’s using an ATmega16 that he [...]
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7:02
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Hack a Day
[Scott] was trying to fix a laptop, and we all know how that sometimes ends. Having a spare 128GB solid state drive and a Dell Mini 10 netbook to shove it in, there was only one problem, the drive did not have SATA connectors. That problem was taken care of like a pro with this [...]
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6:06
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Hack a Day
Only a little bit out of season but better late than never! [Scott] brings us his Black Rock City Navigator. This unique bike mounted GPS device made for Burning Man 2010 features a servo driven array of LEDs. Two LED strips are used to cover the full 240 degrees of the C shaped city without [...]
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13:00
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Hack a Day
Sure, [Hunter Scott's] Breathalyzer can only differentiate between hammer and sober, but look how nice it came out. He’s using an MQ-3 alcohol sensor which, from previous projects, we know is very difficult to accurately calibrate. But if you want to monkey around with embedded systems you’ve got to have a goal. [Hunter] chose a gorgeous aluminum [...]
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10:59
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Hack a Day
If this is meant for a model rocket it must be the biggest we’ve ever seen. [Scott] and [Trevor] took on the task of building a rocket attitude control system after reading about some research on the topic. But that researcher only tested the theories using simulations so they set out to build their own. [...]
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10:00
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Hack a Day
[Scott Harden] came across a few posts about QR code matrix barcodes coming through on the 40m baud radio band. A few operators had captured the signals and assembled them into the code block seen above but they weren’t able to get a clear enough shot for a smartphone to decode the image. [Scott] took [...]
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9:43
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Hack a Day
[Scott Nietfeld] built a charger from a Dyna-flex wrist exerciser. We hadn’t heard of a these gyroscopic devices before but once we saw the promo video (embedded after the break) we realized that this is the kind of thing that infomercials were made to sell. [Scott] knew the internals spun to fairly high RPM and [...]
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14:00
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Hack a Day
[Scott] built a confetti canon to spice up the party. It’s pneumatic and re-purposes a fire extinguisher as the air tank. He had a refillable extinguisher that used water instead of chemical retardant. After emptying the water and ensuring all of the pressure had been release he swapped the hose and nozzle for a sprinkler solenoid valve. [...]
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6:00
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Hack a Day
[Scott Harden's] prime number generator exhibits a great way to use an LED matrix to present readable information. The project resides in a hinged wooden box with a grid of holes on the lid for the LEDs. [Scott] has overlaid the matrix with a printout showing powers of two that represent different prime numbers. Inside [...]
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13:30
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Hack a Day
If there is one thing we like, it’s a fellow hacker so enthusiastic about his or her work that they write the article practically for us by including as much detail and information as possible. In this two part hack, [Scott] wrote in to let us know not only about a high school built high [...]
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8:00
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Hack a Day
[Scott] over at curiousinventor.com has posted an instructable detailing how to use an Arduino and a power drill to spool solder. The Arduino senses the speed that the drill is going via an opto interrupter and a laser and adjusts with a servo hooked to the trigger. While we don’t think many people will be [...]
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11:00
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Hack a Day
In the ongoing quest to make the Force Trainer useful [Hunter Scott] developed a music composition platform for your mind (channel Jack Black’s voice for the last half of that sentence). Using the Force Trainer’s serial port [Hunter] feeds the data stream into a computer via an FTDI cable and uses Processing to make the [...]
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