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Bakalářská práce se zabývá návrhem a implementací mobilní aplikace pro operační systém Android, která je především určena pro studenty oboru Zdravotnický záchranář. Teoretická část se věnuje dnešnímu mobilnímu světu a porovnání aplikací, které se vyskytují v obchodě Google Play. Praktická část je zaměřena na prototyp aplikace, popis tříd, datovou strukturu a publikaci aplikace., This bachelor thesis deals with the design and implementation of the mobile application for the Android operating system, which is primarily intended for paramedic students. The theoretical part is dedicated to today's mobile world and there is a comparison of apps that are available in the Google Play store. The practical part is focused on application prototype, class descriptions, data structure and publishing., Fakulta elektrotechniky a informatiky, Cílem bakalářské práce bylo vytvořit mobilní aplikaci pro zdravotnické záchranáře. K vytvořenému systému byly zpracovány metodické pokyny pro uživatele a aplikace je zveřejněna v elektronickém obchodu Google play. Dle vedoucího práce je po obsahové stránce práce v naprostém pořádku. Všechny cíle práce byly naplněny. Student prezentoval výsledky své práce včetně demonstrativních ukázek. Komise pro státní závěrečné zkoušky hodnotila práci jako velice vydařenou a navrhuje bakalářskou práci v souladu s článkem 3, písm. b) Stipendijního řádu Univerzity Pardubice na cenu děkana za vynikající vývojové a inovační výsledky.

The result shows that the size of the user base plays a significant part in the decision-making, but that the strength of the user base is just as significant as a decision factor. Larger differences in the size of competing operating system’s user bases enhance the importance of the size of the user base, as a decision factor. The study also recognise a new decision factor, a feeling of quality, as a significant part in the decision-making.

[EN] Personal devices are penetrating most technology market sectors nowadays. Despite their growing computation power, they execute powerful yet heavy software platforms that, in the end, expose the physical hardware resource limitations. Such software platforms are becoming thick layers that contain an embedded mobile operating system with graphical tools, communication software supporting wired and wireless protocols, and virtual machines and hosting platforms to enable portable code execution. In the last decade, mobile devices have also become part of some real-time domains that in the past only used specialized computing hardware; this is the case of, for example, industrial control infrastructures where personal devices are used mainly for interfacing purposes. Still, the full adoption of personal embedded devices in real-time environments has not been achieved due to their temporal unpredictability derived, among other reasons, from the operating system's execution and concurrency model. Therefore, mechanisms for efficient and timely management of resources are needed to meet, at least, soft real-time constrains of the emerging application domains that are heavy resource consumers. In this paper, we describe a scheme for integrating resource management techniques on top of the concurrency model of embedded operating systems that use the active object concurrency model; we illustrate the approach by taking, just as example, the model of Symbian. Also, results are presented and discussed that validate the proposed resource management scheme.

[EN] Rich-sensor smart phones have made possible the recent birth of the mobile sensing research area as part of ubiquitous sensing which integrates other areas such as wireless sensor networks and web sensing. There are several types of mobile sensing: individual, participatory, opportunistic, crowd, social, etc. The object of sensing can be people-centered or environment-centered. The sensing domain can be home, urban, vehicular Currently there are barriers that limit the social acceptance of mobile sensing systems. Examples of social barriers are privacy concerns, restrictive laws in some countries and the absence of economic incentives that might encourage people to participate in a sensing campaign. Several technical barriers are phone energy savings and the variety of sensors and software for their management. Some existing surveys partially tackle the topic of mobile sensing systems. Published papers theoretically or partially solve the above barriers. We complete the above surveys with new works, review the barriers of mobile sensing systems and propose some ideas for efficiently implementing sensing, fusion, learning, security, privacy and energy saving for any type of mobile sensing system, and propose several realistic research challenges. The main objective is to reduce the learning curve in mobile sensing systems where the complexity is very high.

[EN] Personal devices are penetrating most technology market sectors nowadays. Despite their growing computation power, they execute powerful yet heavy software platforms that, in the end, expose the physical hardware resource limitations. Such software platforms are becoming thick layers that contain an embedded mobile operating system with graphical tools, communication software supporting wired and wireless protocols, and virtual machines and hosting platforms to enable portable code execution. In the last decade, mobile devices have also become part of some real-time domains that in the past only used specialized computing hardware; this is the case of, for example, industrial control infrastructures where personal devices are used mainly for interfacing purposes. Still, the full adoption of personal embedded devices in real-time environments has not been achieved due to their temporal unpredictability derived, among other reasons, from the operating system's execution and concurrency model. Therefore, mechanisms for efficient and timely management of resources are needed to meet, at least, soft real-time constrains of the emerging application domains that are heavy resource consumers. In this paper, we describe a scheme for integrating resource management techniques on top of the concurrency model of embedded operating systems that use the active object concurrency model; we illustrate the approach by taking, just as example, the model of Symbian. Also, results are presented and discussed that validate the proposed resource management scheme.

[EN] Rich-sensor smart phones have made possible the recent birth of the mobile sensing research area as part of ubiquitous sensing which integrates other areas such as wireless sensor networks and web sensing. There are several types of mobile sensing: individual, participatory, opportunistic, crowd, social, etc. The object of sensing can be people-centered or environment-centered. The sensing domain can be home, urban, vehicular Currently there are barriers that limit the social acceptance of mobile sensing systems. Examples of social barriers are privacy concerns, restrictive laws in some countries and the absence of economic incentives that might encourage people to participate in a sensing campaign. Several technical barriers are phone energy savings and the variety of sensors and software for their management. Some existing surveys partially tackle the topic of mobile sensing systems. Published papers theoretically or partially solve the above barriers. We complete the above surveys with new works, review the barriers of mobile sensing systems and propose some ideas for efficiently implementing sensing, fusion, learning, security, privacy and energy saving for any type of mobile sensing system, and propose several realistic research challenges. The main objective is to reduce the learning curve in mobile sensing systems where the complexity is very high.

The result shows that the size of the user base plays a significant part in the decision-making, but that the strength of the user base is just as significant as a decision factor. Larger differences in the size of competing operating system’s user bases enhance the importance of the size of the user base, as a decision factor. The study also recognise a new decision factor, a feeling of quality, as a significant part in the decision-making.

[EN] Personal devices are penetrating most technology market sectors nowadays. Despite their growing computation power, they execute powerful yet heavy software platforms that, in the end, expose the physical hardware resource limitations. Such software platforms are becoming thick layers that contain an embedded mobile operating system with graphical tools, communication software supporting wired and wireless protocols, and virtual machines and hosting platforms to enable portable code execution. In the last decade, mobile devices have also become part of some real-time domains that in the past only used specialized computing hardware; this is the case of, for example, industrial control infrastructures where personal devices are used mainly for interfacing purposes. Still, the full adoption of personal embedded devices in real-time environments has not been achieved due to their temporal unpredictability derived, among other reasons, from the operating system's execution and concurrency model. Therefore, mechanisms for efficient and timely management of resources are needed to meet, at least, soft real-time constrains of the emerging application domains that are heavy resource consumers. In this paper, we describe a scheme for integrating resource management techniques on top of the concurrency model of embedded operating systems that use the active object concurrency model; we illustrate the approach by taking, just as example, the model of Symbian. Also, results are presented and discussed that validate the proposed resource management scheme.

The producers of mobile operating systems (OS) - giant multinational corporations, are investing millions of EUR into mobile OS and mobile application development. Lot of studies emphasize that customer loyalty and analysis of factors affecting it are important for their success. Furthermore, they agree that customer satisfaction is the main important mediate goal for the corporations on their way to obtaining economic success. Data on mobile customer behavior and experience are needed in today's product development and marketing activities. These are the main reasons for conducting the survey concerning the customers' satisfaction with various mobile OS. The measuring of the customers' satisfaction is based on their experience with specified OS. Perception of customers' experience can influence their decision to continue using the same mobile OS, or to choose another. This study presents the results of a research regarding the current state of customers' satisfaction with mobile OS in Serbia, primarily focusing on the drawing attention of large multinational companies - the producers.

The majority of malware seen on Android has a top-down approach often targeting application programming interfaces (API) of the financially rewarding telephony and short message service (SMS). In this paper we present a proof of concept of compromising an Android based smartphone by targeting the underlying Linux kernel. We adopt an unorthodox bottom-up approach on modifying the operating system to allow an application to re-route the Android debug bridge (ADB) daemon onto a wireless link. We support our research using case scenarios to show how information can be extracted and inserted into the smartphone without the knowledge of the user. We discuss how the Android build environment can be changed to harness functionality from secured operations. We also discuss how an application can be designed to function with minimum resources, be hidden and perform operations without user consent or interaction. We also provide an overview of how a rooted Android operating system can be misused., QC 20130930QC 20211008

The commercial mobile phone industry is a relatively new one. Starting out in the 1980s, it has proliferated in both numbers and in terms of technology. The last decade saw a sharp increase in both the number of subscribers and the amount of services which was offered by mobile devices. In order to keep up with this fast evolution of the industry, phones have started to get much more complicated and ‘smarter’ due to the software which is used to run these phones. Multi touch screen menus, High Definition video playback, multi megapixel cameras and a plethora of connectivity options are just some of the features a consumer takes for granted in his/her new mobile device. In order to provide these services to the user the software inside the phone has gotten complex to the scale of becoming its own Operating System much akin to the Operating Systems used on personal computers. These mobile operating systems contain millions of lines of software code and cost a lot of money to maintain and develop. Moreover having a popular operating system benefits the organization as it draws in many developers who can write applications which run on this operating system and also develop services which are specific to the operating systems. Having these services generate revenue for the network operators who get to bill the consumers for using the services or for the data which has been transferred to and from these mobile phones via the operator’s network. Nokia’s dominant market share in the smartphone market entails that it holds a near 40% share with its smartphone operating systems. Gradually the company has been moving towards opening up its previously proprietary operating systems to the public in the form of Open Source Software, where everyone is able to view, share, distribute and contribute to the software code. This strategy change has been taking place over the last couple of years and continues under an overall change of direction and focus which is taking place in the

The commercial mobile phone industry is a relatively new one. Starting out in the 1980s, it has proliferated in both numbers and in terms of technology. The last decade saw a sharp increase in both the number of subscribers and the amount of services which was offered by mobile devices. In order to keep up with this fast evolution of the industry, phones have started to get much more complicated and ‘smarter’ due to the software which is used to run these phones. Multi touch screen menus, High Definition video playback, multi megapixel cameras and a plethora of connectivity options are just some of the features a consumer takes for granted in his/her new mobile device. In order to provide these services to the user the software inside the phone has gotten complex to the scale of becoming its own Operating System much akin to the Operating Systems used on personal computers. These mobile operating systems contain millions of lines of software code and cost a lot of money to maintain and develop. Moreover having a popular operating system benefits the organization as it draws in many developers who can write applications which run on this operating system and also develop services which are specific to the operating systems. Having these services generate revenue for the network operators who get to bill the consumers for using the services or for the data which has been transferred to and from these mobile phones via the operator’s network. Nokia’s dominant market share in the smartphone market entails that it holds a near 40% share with its smartphone operating systems. Gradually the company has been moving towards opening up its previously proprietary operating systems to the public in the form of Open Source Software, where everyone is able to view, share, distribute and contribute to the software code. This strategy change has been taking place over the last couple of years and continues under an overall change of direction and focus which is taking place in the

The commercial mobile phone industry is a relatively new one. Starting out in the 1980s, it has proliferated in both numbers and in terms of technology. The last decade saw a sharp increase in both the number of subscribers and the amount of services which was offered by mobile devices. In order to keep up with this fast evolution of the industry, phones have started to get much more complicated and ‘smarter’ due to the software which is used to run these phones. Multi touch screen menus, High Definition video playback, multi megapixel cameras and a plethora of connectivity options are just some of the features a consumer takes for granted in his/her new mobile device. In order to provide these services to the user the software inside the phone has gotten complex to the scale of becoming its own Operating System much akin to the Operating Systems used on personal computers. These mobile operating systems contain millions of lines of software code and cost a lot of money to maintain and develop. Moreover having a popular operating system benefits the organization as it draws in many developers who can write applications which run on this operating system and also develop services which are specific to the operating systems. Having these services generate revenue for the network operators who get to bill the consumers for using the services or for the data which has been transferred to and from these mobile phones via the operator’s network. Nokia’s dominant market share in the smartphone market entails that it holds a near 40% share with its smartphone operating systems. Gradually the company has been moving towards opening up its previously proprietary operating systems to the public in the form of Open Source Software, where everyone is able to view, share, distribute and contribute to the software code. This strategy change has been taking place over the last couple of years and continues under an overall change of direction and focus which is taking place in the

The commercial mobile phone industry is a relatively new one. Starting out in the 1980s, it has proliferated in both numbers and in terms of technology. The last decade saw a sharp increase in both the number of subscribers and the amount of services which was offered by mobile devices. In order to keep up with this fast evolution of the industry, phones have started to get much more complicated and ‘smarter’ due to the software which is used to run these phones. Multi touch screen menus, High Definition video playback, multi megapixel cameras and a plethora of connectivity options are just some of the features a consumer takes for granted in his/her new mobile device. In order to provide these services to the user the software inside the phone has gotten complex to the scale of becoming its own Operating System much akin to the Operating Systems used on personal computers. These mobile operating systems contain millions of lines of software code and cost a lot of money to maintain and develop. Moreover having a popular operating system benefits the organization as it draws in many developers who can write applications which run on this operating system and also develop services which are specific to the operating systems. Having these services generate revenue for the network operators who get to bill the consumers for using the services or for the data which has been transferred to and from these mobile phones via the operator’s network. Nokia’s dominant market share in the smartphone market entails that it holds a near 40% share with its smartphone operating systems. Gradually the company has been moving towards opening up its previously proprietary operating systems to the public in the form of Open Source Software, where everyone is able to view, share, distribute and contribute to the software code. This strategy change has been taking place over the last couple of years and continues under an overall change of direction and focus which is taking place in the

The commercial mobile phone industry is a relatively new one. Starting out in the 1980s, it has proliferated in both numbers and in terms of technology. The last decade saw a sharp increase in both the number of subscribers and the amount of services which was offered by mobile devices. In order to keep up with this fast evolution of the industry, phones have started to get much more complicated and ‘smarter’ due to the software which is used to run these phones. Multi touch screen menus, High Definition video playback, multi megapixel cameras and a plethora of connectivity options are just some of the features a consumer takes for granted in his/her new mobile device. In order to provide these services to the user the software inside the phone has gotten complex to the scale of becoming its own Operating System much akin to the Operating Systems used on personal computers. These mobile operating systems contain millions of lines of software code and cost a lot of money to maintain and develop. Moreover having a popular operating system benefits the organization as it draws in many developers who can write applications which run on this operating system and also develop services which are specific to the operating systems. Having these services generate revenue for the network operators who get to bill the consumers for using the services or for the data which has been transferred to and from these mobile phones via the operator’s network. Nokia’s dominant market share in the smartphone market entails that it holds a near 40% share with its smartphone operating systems. Gradually the company has been moving towards opening up its previously proprietary operating systems to the public in the form of Open Source Software, where everyone is able to view, share, distribute and contribute to the software code. This strategy change has been taking place over the last couple of years and continues under an overall change of direction and focus which is taking place in the

In the smartphone sector, we are discerning a competition between Symbian, Apple, and Google for the dominating mobile platform. In the design of their mobile platforms and operating systems these organizations use varying degrees if "openness" on different platform elements. We follow a design science approach to construct and apply a framework to better understand how these organizations vary the degrees of openness of different information resources in order to create successful mobile platforms.

The commercial mobile phone industry is a relatively new one. Starting out in the 1980s, it has proliferated in both numbers and in terms of technology. The last decade saw a sharp increase in both the number of subscribers and the amount of services which was offered by mobile devices. In order to keep up with this fast evolution of the industry, phones have started to get much more complicated and ‘smarter’ due to the software which is used to run these phones. Multi touch screen menus, High Definition video playback, multi megapixel cameras and a plethora of connectivity options are just some of the features a consumer takes for granted in his/her new mobile device. In order to provide these services to the user the software inside the phone has gotten complex to the scale of becoming its own Operating System much akin to the Operating Systems used on personal computers. These mobile operating systems contain millions of lines of software code and cost a lot of money to maintain and develop. Moreover having a popular operating system benefits the organization as it draws in many developers who can write applications which run on this operating system and also develop services which are specific to the operating systems. Having these services generate revenue for the network operators who get to bill the consumers for using the services or for the data which has been transferred to and from these mobile phones via the operator’s network. Nokia’s dominant market share in the smartphone market entails that it holds a near 40% share with its smartphone operating systems. Gradually the company has been moving towards opening up its previously proprietary operating systems to the public in the form of Open Source Software, where everyone is able to view, share, distribute and contribute to the software code. This strategy change has been taking place over the last couple of years and continues under an overall change of direction and focus which is taking place in the

Tato práce pojednává o možnostech sledování pohybu dat na mobilních zařízeních. Rozšiřuje čtenářovo povědomí o rozdělení trhu mobilních operačních systémů a důležitosti bezpečnostních řešení v podnikové sféře. Díky porovnání možností vývoje a bezpečnostních prvků platforem je ucelena představa o důležitosti těchto systémů. Součástí práce jsou vyvinuté aplikace na platformách Android a BlackBerry OS pro záznam sledovaných dat, serverová aplikace pro jejich sběr a iOS aplikace na PhoneLogs pro jejich hromadné zobrazení. Přístup k záznamům je možný až po úspěšné autentizaci, jednotlivé databáze jsou šifrovány a komunikace je zabezpečená SSL certifikátem., This thesis researches the possibilities of tracking mobile device data and their movement. It encompasses the division of the mobile operating systems market and also the importance of security solutions in business sector. Thanks to comparing the possibilities of development and security elements of individual platforms, the overview of importance is completed. The thesis also contains developed applications on Android and BlackBerry OS platforms for recording tracked data, a server application for their collection and a iOS application on PhoneLogs for their wholesale viewing. Accessing these records is possible after a successful authentication, individual databases are encrypted and communication secured with an SSL certificate.

Tato diplomová práce popisuje mobilní aplikaci, která poskytuje podporu pro ovládání GSM/GPS alarmů. Aplikace obohacuje tyto alarmy o novou funkcionalitu, která vychází z možností těchto bezpečnostních zařízení a novodobých mobilních přístrojů. Práce se zaobírá především výběrem vhodné mobilní platformy, návrhem samotné aplikace pro tuto platformu a způsobem, jakým bude zaručena nezávislost programu na konkrétním typu alarmu. V závěru práce jsou poté vyhodnoceny dosažené výsledky a popsány možné rozšíření aplikace do budoucnosti., This master's thesis describes the mobile application that provides the support to control the GSM/GPS alarms. Based on the possibilities of modern security equipment and mobile devices, the application adds new functionality for these alarms. This work mainly describes selecting the appropriate mobile platform, application designs and the independence on the specific alarm. In conclusion, the results and possible extension of the application are talked over.

Tato práce pojednává o možnostech sledování pohybu dat na mobilních zařízeních. Rozšiřuje čtenářovo povědomí o rozdělení trhu mobilních operačních systémů a důležitosti bezpečnostních řešení v podnikové sféře. Díky porovnání možností vývoje a bezpečnostních prvků platforem je ucelena představa o důležitosti těchto systémů. Součástí práce jsou vyvinuté aplikace na platformách Android a BlackBerry OS pro záznam sledovaných dat, serverová aplikace pro jejich sběr a iOS aplikace na PhoneLogs pro jejich hromadné zobrazení. Přístup k záznamům je možný až po úspěšné autentizaci, jednotlivé databáze jsou šifrovány a komunikace je zabezpečená SSL certifikátem., This thesis researches the possibilities of tracking mobile device data and their movement. It encompasses the division of the mobile operating systems market and also the importance of security solutions in business sector. Thanks to comparing the possibilities of development and security elements of individual platforms, the overview of importance is completed. The thesis also contains developed applications on Android and BlackBerry OS platforms for recording tracked data, a server application for their collection and a iOS application on PhoneLogs for their wholesale viewing. Accessing these records is possible after a successful authentication, individual databases are encrypted and communication secured with an SSL certificate.

Práce se zabývá bezpečným přenosem souborů mezi mobilními zařízeními. V práci je také provedena analýza a zhodnocení současných řešení přenosu souborů mezi mobilními zařízeními a současných komplexních bezpečnostních řešení operačního systému Android. Dále také byly navrženy a zhodnoceny koncepty řešení pro přenos šifrovaných souborů mezi skupinami uživatelů a řešení problému přenosu šifrovaných souborů mimo firmu či instituci. Následně byl vybrán jeden z konceptů přenosu šifrovaných souborů mezi skupinami uživatelů a provedena jeho implementace na operačním systému Android. Na této implementaci byla popsána řešení a problémy, které se mohou vyskytnout při vývoji takového systému. Nakonec byla ověřena funkčnost a správnost celého konceptu., The thesis deals with safe files transfer among mobile devices . The first part of this thesis is the analysis and review of current solutions for transferring files among mobile devices and complex security solutions for Android operating system. The second part describes the design and evaluation of several concepts for encrypted files transfer among groups of regular users and outside the company or institution . One of the concepts for file transfer among users was chosen for implementation on the Android platform . The last part of the thesis describes the problems that can occur during the implementation , their solution , and finally the verification and validation of the concept itself .

Tato bakalářská práce vysvětluje pojmy týkající se bezpečnosti mobilních zařízení. První kapitoly seznamuji s tím, jak se vyvinuli mobilní operační systémy a jaké typy se na dnešním trhu nacházejí. Jsou zde vysvětleny typy základních útoků a bezpečnostních trhlin. Dále jsou v práci rozebrány nejznámější a nejrozšířenější operační systémy, počínaje jejich základními popisy, architekturou a následně bezpečností. Následující kapitola obsahuje porovnání z hlediska bezpečnosti mezi jednotlivými operačními systémy. V osmé kapitole této práce je základní popis a vysvětlení funkcí samotného kódu vytvořené škodlivé aplikace. Kapitola obsahuje aplikací využité slabiny operačního systému Android, možnosti šíření škodlivých aplikací a také případnou ochranu před napadením. V poslední kapitole je uvedena laboratorní úloha, která seznamuje studenty s operačním systémem Android a zaměřuje se na poznání nevhodně použitých protokolů při komunikaci aplikací s internetem., This term paper explains the concepts related to security of mobile devices. The first chapter acquainted with how to develop mobile operating systems and what types are found on the market today. Then the work explains the basic types of attacks and security vulnerabilities. Further work is discussed in the most famous and most popular operating systems, from their basic descriptions, architecture, and then security. In the eighth chapter of this work is a basic description and explanation of the function code itself created by malicious applications. The chapter contains weaknesses of the Android operating system used by the application, opportunities spread of malware and protect against possible attack. In the last chapter is contained laboratory task that acquaints students with the Android operating system and focuses on knowledge inappropriately protocols used to communicate with the Internet applications.

Tato práce pojednává o možnostech sledování pohybu dat na mobilních zařízeních. Rozšiřuje čtenářovo povědomí o rozdělení trhu mobilních operačních systémů a důležitosti bezpečnostních řešení v podnikové sféře. Díky porovnání možností vývoje a bezpečnostních prvků platforem je ucelena představa o důležitosti těchto systémů. Součástí práce jsou vyvinuté aplikace na platformách Android a BlackBerry OS pro záznam sledovaných dat, serverová aplikace pro jejich sběr a iOS aplikace na PhoneLogs pro jejich hromadné zobrazení. Přístup k záznamům je možný až po úspěšné autentizaci, jednotlivé databáze jsou šifrovány a komunikace je zabezpečená SSL certifikátem., This thesis researches the possibilities of tracking mobile device data and their movement. It encompasses the division of the mobile operating systems market and also the importance of security solutions in business sector. Thanks to comparing the possibilities of development and security elements of individual platforms, the overview of importance is completed. The thesis also contains developed applications on Android and BlackBerry OS platforms for recording tracked data, a server application for their collection and a iOS application on PhoneLogs for their wholesale viewing. Accessing these records is possible after a successful authentication, individual databases are encrypted and communication secured with an SSL certificate.

Práce se zabývá bezpečným přenosem souborů mezi mobilními zařízeními. V práci je také provedena analýza a zhodnocení současných řešení přenosu souborů mezi mobilními zařízeními a současných komplexních bezpečnostních řešení operačního systému Android. Dále také byly navrženy a zhodnoceny koncepty řešení pro přenos šifrovaných souborů mezi skupinami uživatelů a řešení problému přenosu šifrovaných souborů mimo firmu či instituci. Následně byl vybrán jeden z konceptů přenosu šifrovaných souborů mezi skupinami uživatelů a provedena jeho implementace na operačním systému Android. Na této implementaci byla popsána řešení a problémy, které se mohou vyskytnout při vývoji takového systému. Nakonec byla ověřena funkčnost a správnost celého konceptu., The thesis deals with safe files transfer among mobile devices . The first part of this thesis is the analysis and review of current solutions for transferring files among mobile devices and complex security solutions for Android operating system. The second part describes the design and evaluation of several concepts for encrypted files transfer among groups of regular users and outside the company or institution . One of the concepts for file transfer among users was chosen for implementation on the Android platform . The last part of the thesis describes the problems that can occur during the implementation , their solution , and finally the verification and validation of the concept itself .

Tato bakalářská práce vysvětluje pojmy týkající se bezpečnosti mobilních zařízení. První kapitoly seznamuji s tím, jak se vyvinuli mobilní operační systémy a jaké typy se na dnešním trhu nacházejí. Jsou zde vysvětleny typy základních útoků a bezpečnostních trhlin. Dále jsou v práci rozebrány nejznámější a nejrozšířenější operační systémy, počínaje jejich základními popisy, architekturou a následně bezpečností. Následující kapitola obsahuje porovnání z hlediska bezpečnosti mezi jednotlivými operačními systémy. V osmé kapitole této práce je základní popis a vysvětlení funkcí samotného kódu vytvořené škodlivé aplikace. Kapitola obsahuje aplikací využité slabiny operačního systému Android, možnosti šíření škodlivých aplikací a také případnou ochranu před napadením. V poslední kapitole je uvedena laboratorní úloha, která seznamuje studenty s operačním systémem Android a zaměřuje se na poznání nevhodně použitých protokolů při komunikaci aplikací s internetem., This term paper explains the concepts related to security of mobile devices. The first chapter acquainted with how to develop mobile operating systems and what types are found on the market today. Then the work explains the basic types of attacks and security vulnerabilities. Further work is discussed in the most famous and most popular operating systems, from their basic descriptions, architecture, and then security. In the eighth chapter of this work is a basic description and explanation of the function code itself created by malicious applications. The chapter contains weaknesses of the Android operating system used by the application, opportunities spread of malware and protect against possible attack. In the last chapter is contained laboratory task that acquaints students with the Android operating system and focuses on knowledge inappropriately protocols used to communicate with the Internet applications.

Práce se zabývá bezpečným přenosem souborů mezi mobilními zařízeními. V práci je také provedena analýza a zhodnocení současných řešení přenosu souborů mezi mobilními zařízeními a současných komplexních bezpečnostních řešení operačního systému Android. Dále také byly navrženy a zhodnoceny koncepty řešení pro přenos šifrovaných souborů mezi skupinami uživatelů a řešení problému přenosu šifrovaných souborů mimo firmu či instituci. Následně byl vybrán jeden z konceptů přenosu šifrovaných souborů mezi skupinami uživatelů a provedena jeho implementace na operačním systému Android. Na této implementaci byla popsána řešení a problémy, které se mohou vyskytnout při vývoji takového systému. Nakonec byla ověřena funkčnost a správnost celého konceptu., The thesis deals with safe files transfer among mobile devices . The first part of this thesis is the analysis and review of current solutions for transferring files among mobile devices and complex security solutions for Android operating system. The second part describes the design and evaluation of several concepts for encrypted files transfer among groups of regular users and outside the company or institution . One of the concepts for file transfer among users was chosen for implementation on the Android platform . The last part of the thesis describes the problems that can occur during the implementation , their solution , and finally the verification and validation of the concept itself .

Tato diplomová práce popisuje mobilní aplikaci, která poskytuje podporu pro ovládání GSM/GPS alarmů. Aplikace obohacuje tyto alarmy o novou funkcionalitu, která vychází z možností těchto bezpečnostních zařízení a novodobých mobilních přístrojů. Práce se zaobírá především výběrem vhodné mobilní platformy, návrhem samotné aplikace pro tuto platformu a způsobem, jakým bude zaručena nezávislost programu na konkrétním typu alarmu. V závěru práce jsou poté vyhodnoceny dosažené výsledky a popsány možné rozšíření aplikace do budoucnosti., This master's thesis describes the mobile application that provides the support to control the GSM/GPS alarms. Based on the possibilities of modern security equipment and mobile devices, the application adds new functionality for these alarms. This work mainly describes selecting the appropriate mobile platform, application designs and the independence on the specific alarm. In conclusion, the results and possible extension of the application are talked over.

Tato diplomová práce popisuje mobilní aplikaci, která poskytuje podporu pro ovládání GSM/GPS alarmů. Aplikace obohacuje tyto alarmy o novou funkcionalitu, která vychází z možností těchto bezpečnostních zařízení a novodobých mobilních přístrojů. Práce se zaobírá především výběrem vhodné mobilní platformy, návrhem samotné aplikace pro tuto platformu a způsobem, jakým bude zaručena nezávislost programu na konkrétním typu alarmu. V závěru práce jsou poté vyhodnoceny dosažené výsledky a popsány možné rozšíření aplikace do budoucnosti., This master's thesis describes the mobile application that provides the support to control the GSM/GPS alarms. Based on the possibilities of modern security equipment and mobile devices, the application adds new functionality for these alarms. This work mainly describes selecting the appropriate mobile platform, application designs and the independence on the specific alarm. In conclusion, the results and possible extension of the application are talked over.

Tato bakalářská práce vysvětluje pojmy týkající se bezpečnosti mobilních zařízení. První kapitoly seznamuji s tím, jak se vyvinuli mobilní operační systémy a jaké typy se na dnešním trhu nacházejí. Jsou zde vysvětleny typy základních útoků a bezpečnostních trhlin. Dále jsou v práci rozebrány nejznámější a nejrozšířenější operační systémy, počínaje jejich základními popisy, architekturou a následně bezpečností. Následující kapitola obsahuje porovnání z hlediska bezpečnosti mezi jednotlivými operačními systémy. V osmé kapitole této práce je základní popis a vysvětlení funkcí samotného kódu vytvořené škodlivé aplikace. Kapitola obsahuje aplikací využité slabiny operačního systému Android, možnosti šíření škodlivých aplikací a také případnou ochranu před napadením. V poslední kapitole je uvedena laboratorní úloha, která seznamuje studenty s operačním systémem Android a zaměřuje se na poznání nevhodně použitých protokolů při komunikaci aplikací s internetem., This term paper explains the concepts related to security of mobile devices. The first chapter acquainted with how to develop mobile operating systems and what types are found on the market today. Then the work explains the basic types of attacks and security vulnerabilities. Further work is discussed in the most famous and most popular operating systems, from their basic descriptions, architecture, and then security. In the eighth chapter of this work is a basic description and explanation of the function code itself created by malicious applications. The chapter contains weaknesses of the Android operating system used by the application, opportunities spread of malware and protect against possible attack. In the last chapter is contained laboratory task that acquaints students with the Android operating system and focuses on knowledge inappropriately protocols used to communicate with the Internet applications.

Práce se zabývá bezpečným přenosem souborů mezi mobilními zařízeními. V práci je také provedena analýza a zhodnocení současných řešení přenosu souborů mezi mobilními zařízeními a současných komplexních bezpečnostních řešení operačního systému Android. Dále také byly navrženy a zhodnoceny koncepty řešení pro přenos šifrovaných souborů mezi skupinami uživatelů a řešení problému přenosu šifrovaných souborů mimo firmu či instituci. Následně byl vybrán jeden z konceptů přenosu šifrovaných souborů mezi skupinami uživatelů a provedena jeho implementace na operačním systému Android. Na této implementaci byla popsána řešení a problémy, které se mohou vyskytnout při vývoji takového systému. Nakonec byla ověřena funkčnost a správnost celého konceptu., The thesis deals with safe files transfer among mobile devices . The first part of this thesis is the analysis and review of current solutions for transferring files among mobile devices and complex security solutions for Android operating system. The second part describes the design and evaluation of several concepts for encrypted files transfer among groups of regular users and outside the company or institution . One of the concepts for file transfer among users was chosen for implementation on the Android platform . The last part of the thesis describes the problems that can occur during the implementation , their solution , and finally the verification and validation of the concept itself .