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So in my first computer science course, one of the earliest labs with Stephen Wong was called Ball World. Professor Wong had set up some fill-in-the-blanks java code for us that brought up a basic frame. We wrote code to add some ball sprites and we had to define their velocity and have code to detect collisions and compute new velocities after balls collided with each other or the boundaries. I still remember the first time you get every....
I managed to get the following error the other day while helping migrate and upgrade some MySQL databases for a client. mysqldump: Got error: 1356: View 'database.table' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them when using LOCK TABLES The above appeared anytime I tried to dump the database to a SQL file using mysqldump. Its actually one of the better errors I have seen come ..
When working on replacement projects, I often find I need to make minor changes to an existing database that is still in use by one of several other applications. Initially, it may seem like situation will force you to conform to the current database schema. But there are other options, even though they may not be for those who are faint of heart. The general pattern when you want to evolve a database that is in use by legacy system, is to ..
Startupcamp Opinions - boyter.org - 15 years ago - eng
So the other weekend I attended a Sydney Startup Camp . While I am not going to say that the entire experience was positive im not going to call out the reasons in too much depth. What I have noticed is that its very ‘clicky’. It seems that despite the organizers attempt to break up up people who know each other it seems to be impossible. A lot of the experience seems to focus on the non technical side of things which is good for people ..
A common problem in software engineering is avoiding confusion and errors when dealing with multiple types of data that share the same representation. Classic examples include differentiating between measurements stored in different units, distinguishing between a string of HTML and a string of plain text (one of these needs to be encoded before it can safely be included in a web page!), or keeping track of pointers to physical memory or vi..
A common problem in software engineering is avoiding confusion and errors when dealing with multiple types of data that share the same representation. Classic examples include differentiating between measurements stored in different units, distinguishing between a string of HTML and a string of plain text (one of these needs to be encoded before it can safely be included in a web page!), or keeping track of pointers to physical memory or vi..
Thankfully not a zombie virus (I checked - she did not develop a taste for human flesh). Yesterday we saw that my dog Keeda had a paw infection and eye infection (yes, at the same time). The eye infection isn’t unusual, she tends to get this once a year or so and my mom has found that rinsing the eye lightly with chamomile tea helps to get rid of it within a couple of days (apparently they use this same method for babies in Ukraine).
So my trusty Linksys wireless router up and died on me a few months ago. Of course, in a geek's world, lack of Wifi at home is a stop-the-line emergency, so of course I just immediately drove to a local brick and mortar store to get a replacement. I bought a Belkin as it was the cheapest. It seems to not have the ability to remember MAC to IP mappings for any significant length of time, which meant all my laptops and VMs were constantly cha....
Robot cars, that is. Google has had its robotic cars travel over 140k miles. For safety, of course, they have an actual driver in the car in case the car doesn’t react correctly.
Attempt at kvass-making - liza.io - 15 years ago - eng
When I was little and living in Ukraine I remember having Kvass, a traditional drink from that area. I realized that there doesn’t seem to be anywhere to buy kvass in Perth, so being the amazing chef that I am I decided to make some of my own.
When I was a kid, my parents would send me to church camp almost every day. At the camp, we did typical campy-type stuff like singing around campfires or listen to stories. Of course, being a church camp, these songs and stories were often biblical and faith-based.
Smart meter technology is moving from news PR item to reality in many major utility markets, bringing with it the promise of fewer site visits and lower rates. With these devices, your local utility can perform a variety of actions from starting/stopping service, upgrading your meter, or even shutting off certain 'smart' appliances (air conditioners, etc) during peak demand to avoid brownouts. All of this is accomplished using a wireless ne....
Smart meter technology is moving from news PR item to reality in many major utility markets, bringing with it the promise of fewer site visits and lower rates. With these devices, your local utility can perform a variety of actions from starting/stopping service, upgrading your meter, or even shutting off certain 'smart' appliances (air conditioners, etc) during peak demand to avoid brownouts. All of this is accomplished using a wireless ne....
Smart meter technology is moving from news PR item to reality in many major utility markets, bringing with it the promise of fewer site visits and lower rates. With these devices, your local utility can perform a variety of actions from starting/stopping service, upgrading your meter, or even shutting off certain 'smart' appliances (air conditioners, etc) during peak demand to avoid brownouts. All of this is accomplished using a wireless ne....
Having your place broken into and your computer stolen can be a nightmare. Getting revenge on the fucker who has your machine can be a dream come true. I had the opportunity to experience both of these when my machine was stolen in Boston and then showed up in Las Vegas 2 years later. Come share some laughs at a lamer's expense, participate in the pwnage, and learn some resulting insights into the implications of certain security decisions...
Having your place broken into and your computer stolen can be a nightmare. Getting revenge on the fucker who has your machine can be a dream come true. I had the opportunity to experience both of these when my machine was stolen in Boston and then showed up in Las Vegas 2 years later. Come share some laughs at a lamer's expense, participate in the pwnage, and learn some resulting insights into the implications of certain security decisions...
Having your place broken into and your computer stolen can be a nightmare. Getting revenge on the fucker who has your machine can be a dream come true. I had the opportunity to experience both of these when my machine was stolen in Boston and then showed up in Las Vegas 2 years later. Come share some laughs at a lamer's expense, participate in the pwnage, and learn some resulting insights into the implications of certain security decisions...
Team SoundCloud hacking at Music Hack Day Barcelona Last weekend a team of SoundCloud attended Music Hack Day Barcelona. This blog post is…
Team SoundCloud hacking at Music Hack Day Barcelona Last weekend a team of SoundCloud attended Music Hack Day Barcelona. This blog post is…
A growing number of college students are approaching the end of their college careers and are worried about finding a job. One reason is academic inflation.
https://www.defcon.org/images/defcon-19/dc-19-presentations/Crowley/DEFCON-19-Crowley-Cryptographic-Oracles.pdf Cryptography is often used to secure data, but few people have a solid understanding of cryptography. It is often said that if you are not strictly a cryptographer, you will get cryptography wrong. For that matter, if you ARE a cryptographer, it is still easy to make mistakes. The algorithms might be peer reviewed and unbroke....
Follow in the footsteps of a seasoned geek as he recalls his adventures in the design, buildout, and operation of a physical security system. Learn how to plan ahead for the issues that will fall on your head, how to get vendors to take you to lunch, and how to achieve the impossible : a physical security system that keeps users,management , your budget, and you happy while actually keeping out the bad guys. A.P. Delchi started out wit....
The presentation is a case study about an approach to building reverse engineering tools, but in this case, a network bridge between IDA Pro and Debuggers. The presentation will cover the development side of things, and discuss how to leverage open source projects as supplements for code and learning aids, detail useful sources for this type of development, and provide insight about how to build C++ extensions for WinDbg and IDA, as well as....
https://www.defcon.org/images/defcon-19/dc-19-presentations/Crowley/DEFCON-19-Crowley-Cryptographic-Oracles.pdf Cryptography is often used to secure data, but few people have a solid understanding of cryptography. It is often said that if you are not strictly a cryptographer, you will get cryptography wrong. For that matter, if you ARE a cryptographer, it is still easy to make mistakes. The algorithms might be peer reviewed and unbroke....
Follow in the footsteps of a seasoned geek as he recalls his adventures in the design, buildout, and operation of a physical security system. Learn how to plan ahead for the issues that will fall on your head, how to get vendors to take you to lunch, and how to achieve the impossible : a physical security system that keeps users,management , your budget, and you happy while actually keeping out the bad guys. A.P. Delchi started out wit....
The presentation is a case study about an approach to building reverse engineering tools, but in this case, a network bridge between IDA Pro and Debuggers. The presentation will cover the development side of things, and discuss how to leverage open source projects as supplements for code and learning aids, detail useful sources for this type of development, and provide insight about how to build C++ extensions for WinDbg and IDA, as well as....
Follow in the footsteps of a seasoned geek as he recalls his adventures in the design, buildout, and operation of a physical security system. Learn how to plan ahead for the issues that will fall on your head, how to get vendors to take you to lunch, and how to achieve the impossible : a physical security system that keeps users,management , your budget, and you happy while actually keeping out the bad guys. A.P. Delchi started out wit....
The presentation is a case study about an approach to building reverse engineering tools, but in this case, a network bridge between IDA Pro and Debuggers. The presentation will cover the development side of things, and discuss how to leverage open source projects as supplements for code and learning aids, detail useful sources for this type of development, and provide insight about how to build C++ extensions for WinDbg and IDA, as well as....
https://www.defcon.org/defcon-19/dc-19-presentations/Crowley/DEFCON-19-Crowley-Cryptographic-Oracles.pdf Cryptography is often used to secure data, but few people have a solid understanding of cryptography. It is often said that if you are not strictly a cryptographer, you will get cryptography wrong. For that matter, if you ARE a cryptographer, it is still easy to make mistakes. The algorithms might be peer reviewed and unbroken for 1....
https://www.defcon.org/images/defcon-19/dc-19-presentations/Crowley/DEFCON-19-Crowley-Cryptographic-Oracles.pdf Cryptography is often used to secure data, but few people have a solid understanding of cryptography. It is often said that if you are not strictly a cryptographer, you will get cryptography wrong. For that matter, if you ARE a cryptographer, it is still easy to make mistakes. The algorithms might be peer reviewed and unbroke....
The Programmable HID USB Keystroke Dongle (PHUKD) is a small device based around the Teensy microcontroller development board. It allows users to program in keystrokes and mouse macros that can execute when the device is plugged in, after a set time, or when certain environmental conditions are met (light, noise, temperature, etc.) This device can be used as a replacement for a U3 hacksaw, as a device left behind to execute commands when so..
The Programmable HID USB Keystroke Dongle (PHUKD) is a small device based around the Teensy microcontroller development board. It allows users to program in keystrokes and mouse macros that can execute when the device is plugged in, after a set time, or when certain environmental conditions are met (light, noise, temperature, etc.) This device can be used as a replacement for a U3 hacksaw, as a device left behind to execute commands when so..
The Programmable HID USB Keystroke Dongle (PHUKD) is a small device based around the Teensy microcontroller development board. It allows users to program in keystrokes and mouse macros that can execute when the device is plugged in, after a set time, or when certain environmental conditions are met (light, noise, temperature, etc.) This device can be used as a replacement for a U3 hacksaw, as a device left behind to execute commands when so..
A large portion of people who possess a Gaming Console or a Smartphone are downloading paid software illegally from the web or p2p. Most of those people do not even give a second thought before installing the downloaded software, and merely just check that the application works. The sense of security here comes from the application's popularity (many people use it = safe) and the fact that the application is working as advertised with ....
A large portion of people who possess a Gaming Console or a Smartphone are downloading paid software illegally from the web or p2p. Most of those people do not even give a second thought before installing the downloaded software, and merely just check that the application works. The sense of security here comes from the application's popularity (many people use it = safe) and the fact that the application is working as advertised with ....
A large portion of people who possess a Gaming Console or a Smartphone are downloading paid software illegally from the web or p2p. Most of those people do not even give a second thought before installing the downloaded software, and merely just check that the application works. The sense of security here comes from the application's popularity (many people use it = safe) and the fact that the application is working as advertised with ....
Hardware hacking can be lots of fun but can be very intimidating getting started. Andrew Kongs and Dr. Gerald Kane wanted to spread the hardware hacking culture to others and saw incoming college engineering freshman as the perfect crowd to indoctrinate. They developed a set of hardware and software tools to help their incoming students play with low-level software and embedded systems. After sharing the tools with their student audien....
If you visit China, I am sure you would like the Great Wall, however, if you surf the Internet in China, I am sure you hate the Great FireWall (GFW). How a firewall could "serve" over 3.8 billion Internet users in China is a readily interesting story for the globe. In the presentation and seminar, we will quote case studies and discussions from various forums in China about how Internet censorship impacts them. In addition, we will pre....
Hardware hacking can be lots of fun but can be very intimidating getting started. Andrew Kongs and Dr. Gerald Kane wanted to spread the hardware hacking culture to others and saw incoming college engineering freshman as the perfect crowd to indoctrinate. They developed a set of hardware and software tools to help their incoming students play with low-level software and embedded systems. After sharing the tools with their student audien....
If you visit China, I am sure you would like the Great Wall, however, if you surf the Internet in China, I am sure you hate the Great FireWall (GFW). How a firewall could "serve" over 3.8 billion Internet users in China is a readily interesting story for the globe. In the presentation and seminar, we will quote case studies and discussions from various forums in China about how Internet censorship impacts them. In addition, we will pre....
Hardware hacking can be lots of fun but can be very intimidating getting started. Andrew Kongs and Dr. Gerald Kane wanted to spread the hardware hacking culture to others and saw incoming college engineering freshman as the perfect crowd to indoctrinate. They developed a set of hardware and software tools to help their incoming students play with low-level software and embedded systems. After sharing the tools with their student audien....
If you visit China, I am sure you would like the Great Wall, however, if you surf the Internet in China, I am sure you hate the Great FireWall (GFW). How a firewall could "serve" over 3.8 billion Internet users in China is a readily interesting story for the globe. In the presentation and seminar, we will quote case studies and discussions from various forums in China about how Internet censorship impacts them. In addition, we will pre....
The rise of the robot revolution is among us. In the past year Android has stepped up to become a leader in the world of mobile platforms. As of early may the platform has surpassed the iPhone in market share at 28%. Third party trackers for the Android Market have reported upwards of 50,000 apps available now. The Android security model relies heavily on its sandboxed processes and requested application permissions. It survived the recent ....
The presentation "Jackpotting Automated Teller Machines" was originally on the schedule at Black Hat USA 2009. Due to circumstances beyond my control, the talk was pulled at the last minute. The upside to this is that there has been an additional year to research ATM attacks, and I'm armed with a whole new bag of tricks. I've always liked the scene in Terminator 2 where John Connor walks up to an ATM, interfaces his Atari to the card r....
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