Hacking_and_Penetration_Testing_with_Low_Power_Devices

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Power sources 99 Thanks to commonly available electronics, creating a simple power supply for the Beagles is relatively easy. A power supply based on the 7805 voltage regulator is shown in Figure 5.1. The 7805 series of chips are easy to use, but are not the most efficient option available. Because this chip is available from multiple vendors, you should consult the appropriate datasheet. The two most important items to check are the minimum input voltage and maximum output current. The minimum input voltage may vary from 6 to 8 V, with 7 V being a common value. A chip capable of delivering 1 A of current is probably sufficient to run a headless drone. Running a system with a touch screen from battery is not recommended. Keep in mind that the higher the input voltage is above the minimum, the more energy is wasted as heat. This is a very simple circuit. The battery or batteries used must supply a voltage above the minimum required for your 7805. The C1 capacitor is used to smooth the voltage from the battery during intermittent spikes such as those generated by wireless transmissions. The C2 capacitor is used to smooth out any voltage ripples coming from the 7805. The battery should be disconnected when not in use as the 7805 will draw power even without anything connected to the output. The 7805 is available in several packages. The TO-220 package is one of the more common options. The TO-220 allows a heat sink to be attached. An entire power supply is easily created by directly soldering components. A power supply with a 3 cent (3 pennies soldered together) heat sink is shown in Figure 5.2. Once you have tested the circuit, I recommend you use hot glue (or something similar) to keep things from moving around, leading to broken circuits and/or electrical shorts. You may wish to consider building the small power supply circuit on a prototyping pegboard. There are a couple advantages to doing this. First, a 2-pin header can be used to allow easy switching of batteries from one type to another depending on the situation. Second, copper on one side of the protoboard could be used as a heat sink for the 7805. Finally, putting the circuit on a board tends to make it more rugged and less prone to damage. A power supply built on a prototyping board is shown in Figure 5.3. When selecting batteries, the goal is often to find the smallest, lightest, and cheapest solution that will do the job. This is not as simple as it may first sound. It is not always possible to know exactly how long a penetration test will last or how easy it might be to replace batteries during the test. If you intend to use NiMH G1 + - 6 - 9 V + C1 120+ uF IC1 7805T 1 VI VO GND 2 3 + C2 120+ uF X1 1 3 2 2.1 ´ 5.5 mm FIGURE 5.1 A simple power supply based on the 7805 voltage regulator.
100 CHAPTER 5 Powering The Deck FIGURE 5.2 A small power supply with directly soldered components. FIGURE 5.3 A simple power supply on a prototyping board. The board is pictured along with the Radio Shack 276-168 prototyping board from which it was cut and a USB flash drive for scale. or NiCd rechargeable batteries, take careful note of the voltages they supply. A rechargeable “1.5 V” battery might supply as little as 1.2 V. Battery capacities (measured in milliampere hours or mA h) for various size Duracell batteries and approximate run times for wired and wireless drones (220 and 280 mA current, respectively) are presented in Table 5.2.
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Hacking and Penetration Testing wit
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Hacking and Penetration Testing wit
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Dedicated to my favorite wife, my f
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Contents Foreword..................
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Contents ix Network Hubs and Switch
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Foreword So I will start out this f
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Author Biography Dr. Philip Polstra
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Acknowledgments First and foremost,
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CHAPTER Meet the deck 1 INFORMATION
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The deck 3 FIGURE 1.1 Collection of
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The deck 5 FIGURE 1.4 Fern WiFi Cra
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The deck 7 MODES OF OPERATION One o
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The deck 9 stores data only on a lo
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Summary 11 I knew that The Deck, wh
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CHAPTER Meet the beagles 2 INFORMAT
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Texas instruments devices 15 FIGURE
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Texas instruments devices 17 proces
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Texas instruments devices 21 The AD
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Texas instruments devices 23 WHY NO
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CHAPTER Installing a base operating
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Introduction 29 FIGURE 3.2 QNX smar
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Introduction 31 FIGURE 3.4 Android
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Introduction 33 (http://openembedde
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Introduction 35 FIGURE 3.6 Arch Lin
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Introduction 37 Sabayon In the phys
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Introduction 39 Table 3.7 Fedora Pe
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Introduction 41 tar xJf debian*.xz
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Ubuntu options 43 supportive commun
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Creating a microSD Card 45 Device t
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Chapter 3 Appendix: digging deeper
Page 66 and 67: Chapter 3 Appendix: digging deeper
Page 72 and 73: CHAPTER Filling the toolbox 4 INFOR
Page 74 and 75: Adding a graphical environment 57 b
Page 76 and 77: Adding a graphical environment 59 W
Page 78 and 79: Adding a graphical environment 61 t
Page 80 and 81: Adding tools the easy way 63 The li
Page 82 and 83: Adding tools the easy way 65 check_
Page 84 and 85: Adding tools the easy way 67 echo -
Page 86 and 87: Adding tools the hard way 69 # chec
Page 88 and 89: Adding tools the hard way 71 descri
Page 90 and 91: Adding tools the hard way 73 FIGURE
Page 102 and 103: Adding tools the hard way 85 dl_src
Page 104 and 105: Starter set of tools 87 and possibl
Page 106 and 107: Starter set of tools 89 #get John w
Page 108 and 109: Starter set of tools 91 The company
Page 110 and 111: CHAPTER Powering The Deck 5 INFORMA
Page 112 and 113: Power requirements 95 the city and
Page 114 and 115: Power sources 97 WALL POWER When it
Page 118 and 119: Power sources 101 Table 5.2 Duracel
Page 120 and 121: Reducing power consumption 103 REDU
Page 122 and 123: Penetration testing with a single b
Page 138 and 139: Summary 121 site. In-depth testing
Page 140 and 141: CHAPTER Input and output devices 6
Page 142 and 143: Display options 125 FIGURE 6.1 LCD7
Page 144 and 145: IEEE 802.11 wireless 127 The Alfa A
Page 146 and 147: BeagleBone capes 129 FIGURE 6.4 UAR
Page 148 and 149: BeagleBone capes 131 pull-up resist
Page 150 and 151: BeagleBone capes 133 FIGURE 6.7 XBe
Page 152 and 153: BeagleBone capes 135 Newly created
Page 154 and 155: BeagleBone capes 137 Table 6.1 Cape
Page 156 and 157: BeagleBone capes 139 If you don’t
Page 158 and 159: Penetration testing with a single r
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Penetration testing with a single r
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Penetration testing with a single r
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Summary 153 if "done" in status.ite
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CHAPTER Building an army of devices
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Using IEEE 802.15.4 networking 157
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Configuring IEEE 802.15.4 modems 15
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Remote control the easy way 167 FIG
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Remote control via python 169 seria
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Remote control via python 171 impor
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Remote control via python 173 elif
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Remote control via python 175 dnum
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Remote control via python 177 rc_na
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Remote control via python 179 The M
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Remote control via python 181 } [ "
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Remote control via python 183 Merel
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Saving power 185 on the modem. The
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Adding security 187 a different cha
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Expanding Your Reach 189 FIGURE 7.1
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Penetration testing with multiple d
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Summary 203 # if IP and MAC aren’
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CHAPTER Keeping your army secret 8
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Hiding devices 207 FIGURE 8.2 At fi
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Hiding devices 209 FIGURE 8.4 Car d
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Hiding devices 211 FIGURE 8.7 Wirel
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Hiding devices 213 FIGURE 8.11 Unde
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Hiding devices 215 FIGURE 8.14 Unde
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FIGURE 8.17 Inside the Dalek Desk D
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FIGURE 8.21 The haxtar. The haxtar
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Installing devices 221 example, wea
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CHAPTER Adding air support 9 INFORM
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Building the AirDeck 225 Latte is s
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Building the AirDeck 227 what you a
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Using your aerial drone 229 Power i
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Using your aerial drone 231 Install
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Alternative aircraft 233 else { //
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CHAPTER Future directions 10 INFORM
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Closing thoughts 237 For reasons me
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Index Note: Page numbers followed b
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Index 241 configuration, 77-79, 83f
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Index 243 Python scripts, 143-144 w
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