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Secure Programming with the Zend-Framework Stefan Esser June 2009 - Amsterdam Who I am? Stefan Esser • from Cologne / Germany • Information-Security since 1998 • PHP Core Developer since 2001 • Month of PHP Bugs and Suhosin • Head of Research and Development at SektionEins GmbH Stefan Esser • Secure Programming with the Zend-Framework • June 2009 • 2 Part I Introduction Stefan Esser • Secure Programming with the Zend-Framework • June 2009 • 3 Introduction • Using the Zend-Framework got very popular in the last years • Growing request of security for Zend-Framework based applications • Books/Talks/Seminars concentrate on secure programming of PHP applications without a framework • Using a framework requires different ways to implement protections • Some frameworks come with their own security features Stefan Esser • Secure Programming with the Zend-Framework • June 2009 • 4 Topics • Authentication • Input Validation and Input Filtering • SQL Security • Cross Site Request Forgery (CSRF) Protection • Session Management Security • Cross Site Scripting (XSS) Protection Stefan Esser • Secure Programming with the Zend-Framework • June 2009 • 5
Oral meetings is generally so quick that men and women in Rockville, Maryland end up achieving all of the inquiring. Today might be the time to pay attention to what your dentist in Rockville MD must point out if this seems like your regular dental checkup. Listed below are some inquiries they are able to request and attainable answers you ought to foresee.
Yes, it happened to me. During one of my regular maintenance days in the garage – adjusting the valves, synchronizing the carbs, changing the oil and filter – I decided to use a new crush washer on the oil drain plug. You’re supposed to replace them once in a while, right? I guess I tried to crush it a little too much and this was the result. As you can see, the threads are now full of aluminum from the oil pan. The plug itself looks OK, the bolt is harder than the oil pan. But the oil pan threads have been stripped so that is where the repair must take place. There are several ways to repair stripped threads. One is to use something similar to a Fix-aThread Plug Saver kit. This kit repairs the threads for a spark plug which is the same size (M14 x 1.25). A Heli-Coil is often used to repair stripped threads. But that repair is generally for permanent fasteners and may not be ideal for bolts that will be removed and replaced often. A TIME-SERT is a similar repair but is more suitable for bolts that are likely to be inserted and extracted periodically. For my repair I chose a quick and simple procedure using an oversized, self-tapping drain plug. Here are a couple of examples: This is a straight self-tapping oversized drain bolt with a nylon washer. You can find it in most any auto parts store for $3 or less. My local Pep Boys and AutoZone carry these under the Dorman brand name. This is a “piggyback” drain bolt and can usually be found right alongside the single bolt (above) for about the same price. I chose this bolt so that I could leave the big plug in the pan and use the piggyback bolt to drain my oil. This would cause less wear and tear on the oil pan itself.
Using a keypad input in a MicroConverter application is sometimes required for specific operations. It may be used to input data following a request from the MicroConverter or simply to trigger the MicroConverter to initiate a particular operation. The MicroConverter can be configured to poll the keypad continuously for an input, or the keypad interface can be configured in an interrupt driven system, depending on the system requirements. KEYPAD The keypad used for this application is a 16 - way XY-Matrix hexadecimal keypad (www.eaoswitch.com, Mfgr. No. ECO 16250 06, Farnell order code: 467-212). This keypad has eight connections at the rear—four columns (X1–X4) and four rows (Y1–Y4). Figure 1 and Figure 2 show the front and rear of the keypad. OPERATION There are two methods of operation: continuous polling, where the MicroConverter spends most or all of its time checking the keypad for a key press; and interrupt driven, where the MicroConverter is free to perform whatever other tasks are required and checks...
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When I started trading I felt overwhelmed because of all the information available on the Internet, I didn’t know which one was credible and which one to ignore. Well, I’ve done the hard work for you and cut off everything that isn’t useful, and only include information that will actually help you better understand the Forex market. Here we go: 1. Print the Free Forex trading guide for Beginner Traders (Yes, print it down). 2. Open a FREE demo account and download a FREE charting package. Get familiar with it, open your demo account with MetaTrader 4, it’s the most popular charting package and it’s pretty easy to use. Open a demo account and charting here: http://clk.atdmt.com/FXM/go/331877443/direct/01/ 3. Read the Forex Course for beginner traders. At this course you will learn everything about the basics, technical and fundamental analysis and more. You can access the course from this link: http://www.straightforex.com/courses/course/view.php?id=2 3.1 Take the tests of the course. To access the tests you need to register first. Register here: http://www.straightforex.com/courses/login/signup.php 4. Read the Forex Course for advanced traders. At this course you will go through advanced topics such as risk and trade management, position sizing and more. Access the course here: http://www.straightforex.com/advanced-course/course/view.php?id=8 4.1 Take the quizzes of the course. To access the quizzes you need to register first. Register here: http://www.straightforex.com/advanced-course/login/signup.php 5. Develop a Trading System. You need to develop a system that fits your trading style, risk profile, trade personality, etc. You can combine the technical indicators, candlesticks, and other tools reviewed at both courses. You need to have simple and concrete rules. 5.1 Demo trade your system. Using your demo account, test your system, it’s important to make sure you trade consistently on demo before going live. 6. Request a FREE one-on-one coaching session. I can help you develop a system from scratch or increase the profitability of your current system. You can also address other issues regarding Forex trading: http://www.straightforex.com/free-coaching-sessions.html 7. Visit the FREE education Section. You’ll find plenty of free resources that will help you trade better: Forex analysis and forecasts, live webinars, books reviews, Forex tools, Forex forum, and more: http://www.straightforex.com/free-forex-education.html 8. Open a real account. Once you demoed your system and got consistent results, you’ll be ready to trade live, be sure you get consistent results on your demo account first. Open a real account here: http://clk.atdmt.com/FXM/go/331877441/direct/01/ 9. Read these articles. Some of these articles will change the way you see and approach the market, they are definitely a must if you want to trade successfully: Analizing the Forex market: going back to the basics How to decide whether or not to move your stop loss levels 3 Rules to draw perfect Support and Resistance levels How many currency pairs to trade per day This is what Alan Greenspan thinks about currency forecasts Dude, technical indicators don’t work My take on trading the news Price Action: A short term trading approach Do you think a winning trade is always good? Think twice There are two types of traders, which one is you? Do you know what our job is as traders? Risk, leverage and realistic expectations What is the most difficult thing about trading successfully? 4 steps to get rid of overtrading? Liked this Trading Guide?
SMT16030 DIGITAL TEMPERATURE SENSOR Features Absolute accuracy ± 0.7 °C Linear output within 0.2 °C Resolution better then 0.005 °C Duty Cycle output Calibrated on chip TTL, CMOS compatible Temperature range 175 °C (-45 to +130 °C) Directly connectable to data input of microprocessor Easy multiplexing of multiple sensors Typical applications Heater systems Measuring instruments Washing machines Overheating protection Appliances Introduction The Smartec temperature sensor is a sophisticated full silicon temperature sensor with a digital output. The one wire output (duty-cycle modulated) can be directly connected to all kinds of micro-controllers without the need of A/D conversion. The temperature range is –45 °C to 150 °C. The high resolution (< 0.005 °C) makes the sensor useful for high precision applications. The sensor is available in various housings like T018, T092, T0220 and for high volume production in SOIC. Special housing can be manufactured on request. Product highlights The SMART TEMPERATURE SENSOR features a duty-cycle modulated square wave output voltage with linear response to temperatures in the -45 °C to +130 °C range. The absolute accuracy is better than 1.2 °C. In the range from -30 to +100 °C absolute accuracy is better than 0.7 °C, while the linearity is better than 0.2 °C (Model TO18). -1– SMARTEC B.V, Delpratsingel 26 4811 AP Breda, The Netherlands WWW.SMARTEC.NL Tel: +31(0)765205353 SMT16030 Version 7/2005 The SMART TEMPERATURE SENSOR is calibrated during test and burn-in of the chip. The integrated modulator ensures the sensor unit can communicate effectively with low-cost microcontrollers without the need of (onboard) A/D converters or an Xtal controlled oscillator. The SMART TEMPERATURE SENSOR combines digital output and on-chip calibration to ensure major cost reductions and performance-related advantages. In applications where multiple sensors are used, easy multiplexing can be obtained by using a corresponding number of microprocessor inputs or by using low cost digital multiplexers. Since the sensor requires no subsequent calibration, optimal cost savings are recorded both during manufacturing and in the course of after-sales servicing. Pin-out and housing. SOIC-8 TO92 TO18 TO220 2 Pin 1 5.08 Pin 1 3.85 6.1 Pin 7 GND Pin 8 Out bottom view All Sizes in mm. 0.41 1.27 Pin 5 3 1 +V 123 1 3 2 1 Output 2 + Vcc metal backplate = GND 3 GND HEC housing C = 100 nF C 2 3 2.5 1 Pin 1 Output (between Vcc and GND) Pin 2 + Vcc Pin 3 GND 8.5 mm -2– SMARTEC B.V, Delpratsingel 26 4811 AP Breda, The Netherlands WWW.SMARTEC.NL Tel: +31(0)765205353 SMT16030 Version 7/2005 Specifications TO18 Parameters min typ Supply voltage 4.75 5 Supply current 160 2 TO92 max max 1 TO220 Max HEC max SOIC-8 max Units 7.2 * * * * V. 200 * * * * µA. 130 * * * * °C -30 + 100 ° C 0.7 1.2 1.7 1.5 1 °C -45 + 130 °C 1.2 2 1.7 1.5 1.5 °C 5 Non linearity 0.2 0.4 0.5 1.0 1.0 °C Supply voltage sensitivity ...
Device Overview The UM6 Ultra-Miniature Orientation Sensor combines sensor measurements from rate gyros, accelerometers, and magnetic sensors to measure orientation at 500 Hz. The UM6 also has the capability to interface with external GPS modules to provide position, velocity, course, and speed information. Communication with the UM6 is performed over either a TTL (3.3V) UART or a SPI bus. The UM6 is configured by default to automatically transmit data over the UART. The UM6 can be configured to automatically transmit raw sensor data, processed sensor data, angle estimates, and angle estimate covariances at user configurable rates ranging from 20 Hz to 300 Hz in roughly 1 Hz increments. The UM6 can also receive and parse GPS packets, automatically transmitting new GPS position, velocity, and satellite data whenever it is available. Alternatively, the UM6 can operate in "silent mode," where data is transmitted only when specific requests are received over the UART. Regardless of the transmission mode and rate, internal angle estimates are updated at 500 Hz to improve accuracy. The UM6 simplifies integration by providing a number of automatic calibration routines, including rate gyro bias calibration, magnetometer hard and soft iron calibration, and accelerometer "zeroing" to compensate for sensor-platform misalignment. All calibration routines are triggered by sending simple commands over the serial interface. The UM6 comes factory-calibrated to remove soft and hard iron distortions present in the enclosure. When integrated into the end-user system, additional calibration may be necessary to correct other magnetic field distortions. Magnetometer calibration can be performed using the UM6 interface software, available for free download from www.chrobotics.com/downloads. Temperature compensation of rate gyro biases is also supported by the UM6. An internal temperature sensor is used to measure temperature, and third-order compensation is applied to remove the effects of temperature-induced bias. By default, the terms used in compensation are all zero, which means that no temperature compensation is performed. The compensation terms must be determined experimentally by the end-user. On special request, compensation can be performed on each device at the factory. The UM6 can be configured to use either Euler Angles or quaternions for attitude estimation. In Euler Angle mode, magnetometer updates are restricted to yaw alone. This can be useful in cases where distortions are possible or even expected, and where it would be undesirable for those distortions to affect pitch and roll angles (i.e. on a flying rotorcraft). In quaternion mode, Euler Angles are still available, but there are no restrictions on what angles the magnetometer is allowed to influence. The UM6 is available in an OEM version (the UM6-LT) that has a slightly larger footprint and does not include an enclosure. The UM6-LT is functionally equivalent to the UM6, but magnetometer calibration is not performed at the factory.
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