Telecommunication industry in national legal norm must be able to provide lawful interception functions of offenders phone. The traditional PSTN and GSM have had such a system that can provide investigating authorities to monitor telephone and mobile phone users. In the meanwhile, IP telephony must provide the same monitor functions. However, the current SIP-based IP telephony is still unable to provide this monitoring function. In my thesis, I designed and implemented a monitoring system structure over SIP. It can efficiently carry out lawful interception without violating SIP communication. Additionally, it will not cause any overload on server, but will be able to monitor immediately. The recorded data can be played back without any delay and distortion. A database is built up first for those who are monitored. When SIP dialog begins, SIP proxy inspects whether a call must be monitored. If it is the case of monitoring, a duplicate packet flow is delivered to the monitor. The monitor can playback. I believe this implementation can become a platform for further work in the lawful interception.

This thesis is a study of G.W. Leibniz’s views on compossibility. Leibniz calls substances that can be brought into existence together “compossible,” and he says that substances that cannot be brought into existence together are “incompossible.” Incompossibility and compossibility together divide substances into sets of individual substances that make up possible worlds. God then chooses from these possible worlds the best one to bring into existence. Thus without compossibility, the contingency of the world, and even God’s choice could have no rational basis. It is on these grounds that Leibniz thought compossibility was the most powerful—and perhaps, only—defense against the position that the actual world is the only possible world. This is a position that was powerfully argued for by Benedict de Spinoza. For largely theological reasons Spinoza’s position was unacceptable to Leibniz. Since Leibniz’s own time thinkers have found it difficult to see why all the substances are not compossible with one another given certain other philosophical and theological claims Leibniz is committed to. This state of affairs has been exacerbated by the fact that Leibniz himself seems not to have been concerned with providing a clear answer to this conundrum. In an attempt to fill in this omission, and to justify Leibniz’s intuition philosophers have proposed varying accounts of compossibility. Unfortunately, all of these accounts fall short of upholding a comprehensive rational explanation of the world’s contingency based on the objective rational choice of God. My dissertation presents a picture that is multi-faceted in its sensitivity to Leibniz’s theological, physical and logical concerns while nevertheless harmonizing with other tenets of Leibniz’s overall philosophy. I seek to achieve this end by defending the view that compossibility is based on the logical properties of the complete concepts of substances understood as embedded within networks of mutual intelligibility. / Thesis (Ph.D, Philosophy) -- Queen's University, 2014-04-09 13:03:19.752

<p>Voice over Internet Protocol (VoIP), also called IP telephony is rapidly becoming a familiar term and as a technology it is invading the enterprise, private usage, and educational and government organizations. Exploiting advanced voice coding & compression techniques and bandwidth sharing over packet switched networks, VoIP can dramatically improve bandwidth efficiency. Moreover enhanced security features, mobility support, and cost reduction features of VoIP are making it a popular choice for personal communication. Due to its rapid growth in popularity VoIP is rapidly becoming the next generation phone system.</p><p>Lawful interception is a mean of monitoring private communication of users that are suspected of criminal activities or to be a threat to national security. However, government regulatory bodies and law enforcement agencies are becoming conscious of the difficulty of lawful interception of public communication due to the mobilitysupport and advanced security features implemented in some implementations of VoIP technology. There has been continuous pressure from the government upon the operators and vendors to find a solution that would make lawful interception feasible and successful. Key escrow was proposed as a solution by the U. S. National Security Agency. In key escrow the key(s) for a session are entrusted to a trusted third party and upon proper authorization law enforcement agencies can receive the session key(s) from this trusted third party However, key escrow adds some security vulnerabilities and potential risks as an unethical employee of the key escrow agent (or a law enforcement agency that has received the session key(s)) can misuse the key(s) to forge content of a communication session -- as he or she possesses the same key(s) as the user used for this session.</p><p>This thesis addresses the issue of forged session content, by proposing, implementing, and evaluating a cryptographic model which allows key escrow session content. The implementation utilizes an existing implementation of a Session Initiation Protocol (SIP) user agent ‘minisip’ developed at KTH. The performance evaluation results suggest that the proposed model can support key escrow while protecting the user communication from being forged with the cost of minimal computational resource and negligible overhead. <em>without</em> the possibility of undetectable fabrication of<em><strong>  </strong></em>session content. The implementation utilizes an existing implementation of a Session Initiation Protocol (SIP) user agent ‘minisip’ developed at KTH. The performance evaluation results suggest that the proposed model can support key escrow while protecting the user communication from being forged with the cost of minimal computational resource and negligible overhead.</p>

Voice over Internet Protocol (VoIP), also called IP telephony is rapidly becoming a familiar term and as a technology it is invading the enterprise, private usage, and educational and government organizations. Exploiting advanced voice coding &amp; compression techniques and bandwidth sharing over packet switched networks, VoIP can dramatically improve bandwidth efficiency. Moreover enhanced security features, mobility support, and cost reduction features of VoIP are making it a popular choice for personal communication. Due to its rapid growth in popularity VoIP is rapidly becoming the next generation phone system. Lawful interception is a mean of monitoring private communication of users that are suspected of criminal activities or to be a threat to national security. However, government regulatory bodies and law enforcement agencies are becoming conscious of the difficulty of lawful interception of public communication due to the mobilitysupport and advanced security features implemented in some implementations of VoIP technology. There has been continuous pressure from the government upon the operators and vendors to find a solution that would make lawful interception feasible and successful. Key escrow was proposed as a solution by the U. S. National Security Agency. In key escrow the key(s) for a session are entrusted to a trusted third party and upon proper authorization law enforcement agencies can receive the session key(s) from this trusted third party However, key escrow adds some security vulnerabilities and potential risks as an unethical employee of the key escrow agent (or a law enforcement agency that has received the session key(s)) can misuse the key(s) to forge content of a communication session -- as he or she possesses the same key(s) as the user used for this session. This thesis addresses the issue of forged session content, by proposing, implementing, and evaluating a cryptographic model which allows key escrow session content. The implementation utilizes an existing implementation of a Session Initiation Protocol (SIP) user agent ‘minisip’ developed at KTH. The performance evaluation results suggest that the proposed model can support key escrow while protecting the user communication from being forged with the cost of minimal computational resource and negligible overhead. without the possibility of undetectable fabrication of  session content. The implementation utilizes an existing implementation of a Session Initiation Protocol (SIP) user agent ‘minisip’ developed at KTH. The performance evaluation results suggest that the proposed model can support key escrow while protecting the user communication from being forged with the cost of minimal computational resource and negligible overhead.

La présomption de bonne foi a une valeur légale, puisqu’elle est consacrée par le législateur dans l’article 2274 du code civil. Cette thèse est consacrée à l’étude de la bonne foi-croyance erronée pour cerner son contenu et préciser son régime juridique, étant donné que cette notion est toujours accusée d’être floue et vague. La croyance erronée résulte des éléments objectifs matériels significatifs de vérité et invasifs de l’état d’esprit de sa victime. Le critère de la prise en considération et de la protection de cette dernière est la légitimité de la croyance erronée qui qualifie la bonne foi. Lorsque la croyance erronée est légitime, la présomption de bonne foi est consolidée et peut, par conséquent, déployer tous ses effets juridiques. La bonne foi qualifiée jouit, ainsi, d’un pouvoir protecteur et créateur de droits subjectifs qui porte atteinte à la puissance et à l’effectivité de la loi et de certains principes juridiques. La bonne foi a également une fonction fondatrice de certaines règles légales. Cependant, la puissance normative de la présomption de bonne foi consolidée n’est pas absolue ; elle est limitée par la préséance de certaines règles légales qui ne peuvent céder à la fonction créatrice et protectrice de la bonne foi qui est, ainsi, sacrifiée au profit de certains intérêts supérieurs. / The presumption of good faith has a legal value, because it is consecrated by the legislature in the section 2274 of the civil code. This thesis concerns only good faith-erroneous belief and tries to precise its content and juridical rule, as this notion is always accused to be blurred and vague. Erroneous belief is the result of objective material elements which are significant of trust and invasive of the state of mind of the victim. The erroneous belief needs a degree of legitimity in order to qualify the good faith and give rise to juridical protection. Where the erroneous belief is lawful, the presumption of good faith is consolidated and can spread all its juridical effects. The good faith has, therefore, a power of creation of rights. This power involves a breach of the law and of certain principles of the civil law. The good faith is also the basis of somme legal rules. However, the normative power of the good faith is not absolute ; it’s limited by the hold of some legal rules which sacrify the good faith in order to protect superior interests.

of my Master's degree thesis in English Lawful use of firearms The purpose of my paper is to draw attention to the lawful use of firearms in self- defence. The relation between the lawful use of firearms and self-defence is not explained sufficiently today. For example, it is not clear in what situations police officers have authority to act in self-defence and what their liability would be should they exceed the regulation of lawful use of firearms. The author offers possible solutions to this issue and describes their consequences. The paper is composed of three chapters. Introduction brings the reader into the issue. First chapter serves as an extension to the introductory part and defines basic terminology used in the paper such as defences, necessity, self-defence, dangerous offender, lawful use of firearms. Chapter Two deals with relevant international, constitutional and statutory legislation with a focus on the lawful use of firearms and its regulation. Chapter Three introduces basic knowledge from practice split into rulings and case studies. Author of this Master's degree thesis searched and chose the most relevant rulings with relation to the lawful use of firearms. Case studies include two cases of lawful use of firearms by the Police to which the author had access. Chapter Four looks...

Cette acception n'est plus vraie puisque le droit français montre une consécration plus importante de l'exclusion d'un associé. C'est en raison de l'utilité que peut présenter ce procédé qu'il y a eu une multiplication des cas d'exclusion depuis le XXe siècle. Cette multiplication a pour objectif principal de préserver l'intérêt de la société ou de l'entreprise, et de sanctionner l'associé fautif. Cependant, son utilité n'a pas pu fonder une généralisation d'un droit d'exclusion en droit des sociétés. Jusqu'ici, l'exclusion unilatérale demeure une hypothèse rejetée.En effet, la généralisation du droit d'exclusion se heurte à d'importants risques d'exercice arbitraire des gérants ou des organes de société. C'est donc au niveau de la mise en œuvre de l'exclusion que se fondent les hésitations concernant la validation de l'exclusion comme technique ordinaire et utile, indépendamment de toute clause ou texte légal. Notre présente étude met l'accent sur l'utilité de l'exclusion dans ses deux formes validées par le législateur (imposée et acceptée), ainsi que sur les failles dans les règles régissant la mise en œuvre de ces formes d'exclusion. La mise en œuvre de l'exclusion est une question qui préoccupe toujours la jurisprudence et la doctrine. / The endorsement of the exclusion technique was linked to the context of social capital variability. This articulation is no longer valid since the French laws showed a more important utilization of the concept of “exclusion”. There has been an increase in cases of exclusion during the 20th century because of the utility in presenting this process. This rise's main objective is to preserve the interests of the companies or businesses, and to punish the guilty partner. Its usefulness did not lead to generalize the exclusion laws into corporate laws. The unilateral exclusion is a hypothesis rejected until now. Indeed, the generalization of an exclusion law faces significant risks of arbitrary usage by the managers or members of society. It is the implementation of exclusion that makes the basis for hesitations concerning the validation of exclusion as a common and useful technique regardless of any clause or legal text. Our present study focuses on the usefulness of the exclusion in its two forms approved by the legislature (imposed and accepted), as well as the loopholes in the rules governing the realization of these forms. Till date, the implementation of exclusion remains a perplex matter, jurisprudence and doctrine.

The objective of the thesis is to analyse law, case law, recommendations and opinions and to some extent legal doctrine to produce commercially viable advice (in other words, a check-list) on what to think about when conducting a balancing test as of GDPR Article 6.1 (f)

Entre as alternativas para amenizar impactos negativos ao meio ambiente, decorrentes das atividades humanas, está a criação de áreas protegidas de preservação ambiental, como a Reserva Legal. O problema de pesquisa analisa a sustentabilidade ambiental, econômica e social da exigência de averbação de Reserva Legal e sua influência nas propriedades rurais, tendo como objetivo geral analisar as mudanças em curso e se a percepção dos proprietários frente a essa exigência é positiva, negativa ou não interfere nas suas decisões baseadas na sustentabilidade. Os objetivos específicos são analisar em cada propriedade, a sustentabilidade ambiental, avaliando a situação das áreas de Reserva Legal e as Áreas de Preservação Permanente, as mudanças no desempenho econômico dos principais sistemas produtivos e a sustentabilidade social, considerando os indicadores sociais das propriedades. Também foi pesquisada a aplicabilidade e aceitação por parte dos proprietários do Pagamento por Serviços Ambientais, além de identificar se o agricultor é favorável ou desfavorável à averbação de Reserva Legal e se a mesma foi realizada por livre e espontânea vontade ou para cumprir a lei. A metodologia do estudo foi qualitativa, consistindo em pesquisa bibliográfica e documental, além de pesquisa de campo. As principais técnicas de coleta de dados foram observação e entrevista, visando traçar um perfil dos informantes, interpretando o significado das suas representações e percepções. A amostra é constituída de quinze propriedades rurais com área de Reserva Legal já averbada e implantada, em treze municípios do estado do Rio Grande do Sul. A grande maioria dos entrevistados foi favorável com percepção positiva em relação à Reserva Legal. Os principais critérios determinantes à tomada de decisão, baseada na sustentabilidade, em relação à Reserva Legal, foram a necessidade e o desejo de preservar a natureza, possibilidade de remuneração e a postura afirmativa em relação à obrigatoriedade da lei. Dos quinze entrevistados, treze afirmaram que a participação dos agricultores na formulação das leis ambientais foi pouco democrática. Para a maioria dos respondentes, a implantação da Reserva Legal não trouxe nenhuma modificação significativa na renda da família, não interferindo na economia da propriedade e no sistema produtivo, embora muitos manifestem preocupação com a viabilidade econômica das propriedades menores. De modo geral, a exigência de Reserva Legal mostrou-se sustentável na dimensão econômica. Quanto à dimensão ambiental, pode-se inferir que a Reserva Legal nessas propriedades é sustentável, pois a mata nativa já existente tornou-se mais protegida com a averbação, ou então o proprietário efetuou o plantio de árvores nativas onde não era mata. Em termos de sustentabilidade social, não houveram modificações relevantes nas relações familiares, comunitárias e sociais com a implantação da Reserva Legal, a qual não parece ter gerado problemas sociais na região em estudo e nem aos seus atores. Os entrevistados, de maneira geral, não são contrários à Reserva Legal, mas gostariam ter mais informações, e também mais participação. Enfatizam que cada situação deve ser analisada caso a caso, considerando que desta forma mais agricultores estariam dispostos a implantar a Reserva Legal, mediante o Pagamento por Serviços Ambientais. / Among the alternatives to minimize negative environmental impacts caused by human activities, there is the creation of protected areas of environmental preservation, as kind of the Lawful Forest Reserve. The research‟s problem analyses the environmental, economic and social sustainability of the requirement of Lawful Forest Reserve endorsement on notary‟s office and its influence on the farms, with the general objective to analyze the current changes and if the farmers‟ perception of this requirement is positive, negative or doesn‟t have influence on their decisions based on sustainability. The specific objectives are to analyze in each farm, the environmental sustainability, evaluating the situation of Lawful Forest Reserve Areas and the Permanent Preservation Areas, the changes in the economic performance of the main productive systems and the social sustainability, concerning the farms‟ social indicators. Also was researched the applicability and acceptance of the farmers to the Payment for Environmental Services, beyond of identify if the farmer is favorable or disfavorable to the Lawful Forest Reserve endorsement on notary‟s office and if the same was performed by farmer‟s own free will or to comply with the law. The study‟s methodology was qualitative, consisting of documental and bibliographic research, beyond field research. The mainly data gathering techniques were the observation and interview, aiming to sketch a profile of the informers, interpreting the meaning of their representations and perception. The sample is formed by fifteen farms with Lawful Forest Reserve Areas already endorsed on notary‟s office and implemented, located in thirteen towns of Rio Grande do Sul state. The absolute majority of the interviewed people were favorable with positive perception regarding the Lawful Forest Reserve. The mainly criteria determinant to the decision making process, based on the sustainability, regarding Lawful Forest Reserve, were the need and the desire of nature preservation, compensation possibility, and the affirmative stance regarding the law‟s obligation. Thirteen of the fifteen interviewed people affirmed that the farmers‟ participation on the environmental laws formulation was few democratic. To the majority of the sample, the Lawful Forest Reserve implement did not bring any significant change on the family‟s income, did not interfering on the farm‟s economy and in the productive system, although many interviewed people express worry with the economic feasibility of the smaller farms. Generally, the requirement of Lawful Forest Reserve has showed to be sustainable in the economic dimension. About the environmental dimension, it can be inferred that Lawful Forest Reserve in these farms is sustainable, because the already existing native forest became more protected with the endorsement on notary‟s office, or then, the owner did the planting of native forest trees where wasn‟t forest. About social sustainability, there weren‟t relevant changes in the family, community and social relations with the Lawful Forest Reserve implement, which does not seem to have caused social problems in the studied region, neither to its actors. The interviewed people, generally, are not against of Lawful Forest Reserve, but would like to have more information about it, and also more participation. They emphasize that each situation must be analysed case by case, considering that of this way, more farmers would be willing to implement the Lawful Forest Reserve, through the Payment for Environmental Services.

Entre as alternativas para amenizar impactos negativos ao meio ambiente, decorrentes das atividades humanas, está a criação de áreas protegidas de preservação ambiental, como a Reserva Legal. O problema de pesquisa analisa a sustentabilidade ambiental, econômica e social da exigência de averbação de Reserva Legal e sua influência nas propriedades rurais, tendo como objetivo geral analisar as mudanças em curso e se a percepção dos proprietários frente a essa exigência é positiva, negativa ou não interfere nas suas decisões baseadas na sustentabilidade. Os objetivos específicos são analisar em cada propriedade, a sustentabilidade ambiental, avaliando a situação das áreas de Reserva Legal e as Áreas de Preservação Permanente, as mudanças no desempenho econômico dos principais sistemas produtivos e a sustentabilidade social, considerando os indicadores sociais das propriedades. Também foi pesquisada a aplicabilidade e aceitação por parte dos proprietários do Pagamento por Serviços Ambientais, além de identificar se o agricultor é favorável ou desfavorável à averbação de Reserva Legal e se a mesma foi realizada por livre e espontânea vontade ou para cumprir a lei. A metodologia do estudo foi qualitativa, consistindo em pesquisa bibliográfica e documental, além de pesquisa de campo. As principais técnicas de coleta de dados foram observação e entrevista, visando traçar um perfil dos informantes, interpretando o significado das suas representações e percepções. A amostra é constituída de quinze propriedades rurais com área de Reserva Legal já averbada e implantada, em treze municípios do estado do Rio Grande do Sul. A grande maioria dos entrevistados foi favorável com percepção positiva em relação à Reserva Legal. Os principais critérios determinantes à tomada de decisão, baseada na sustentabilidade, em relação à Reserva Legal, foram a necessidade e o desejo de preservar a natureza, possibilidade de remuneração e a postura afirmativa em relação à obrigatoriedade da lei. Dos quinze entrevistados, treze afirmaram que a participação dos agricultores na formulação das leis ambientais foi pouco democrática. Para a maioria dos respondentes, a implantação da Reserva Legal não trouxe nenhuma modificação significativa na renda da família, não interferindo na economia da propriedade e no sistema produtivo, embora muitos manifestem preocupação com a viabilidade econômica das propriedades menores. De modo geral, a exigência de Reserva Legal mostrou-se sustentável na dimensão econômica. Quanto à dimensão ambiental, pode-se inferir que a Reserva Legal nessas propriedades é sustentável, pois a mata nativa já existente tornou-se mais protegida com a averbação, ou então o proprietário efetuou o plantio de árvores nativas onde não era mata. Em termos de sustentabilidade social, não houveram modificações relevantes nas relações familiares, comunitárias e sociais com a implantação da Reserva Legal, a qual não parece ter gerado problemas sociais na região em estudo e nem aos seus atores. Os entrevistados, de maneira geral, não são contrários à Reserva Legal, mas gostariam ter mais informações, e também mais participação. Enfatizam que cada situação deve ser analisada caso a caso, considerando que desta forma mais agricultores estariam dispostos a implantar a Reserva Legal, mediante o Pagamento por Serviços Ambientais. / Among the alternatives to minimize negative environmental impacts caused by human activities, there is the creation of protected areas of environmental preservation, as kind of the Lawful Forest Reserve. The research‟s problem analyses the environmental, economic and social sustainability of the requirement of Lawful Forest Reserve endorsement on notary‟s office and its influence on the farms, with the general objective to analyze the current changes and if the farmers‟ perception of this requirement is positive, negative or doesn‟t have influence on their decisions based on sustainability. The specific objectives are to analyze in each farm, the environmental sustainability, evaluating the situation of Lawful Forest Reserve Areas and the Permanent Preservation Areas, the changes in the economic performance of the main productive systems and the social sustainability, concerning the farms‟ social indicators. Also was researched the applicability and acceptance of the farmers to the Payment for Environmental Services, beyond of identify if the farmer is favorable or disfavorable to the Lawful Forest Reserve endorsement on notary‟s office and if the same was performed by farmer‟s own free will or to comply with the law. The study‟s methodology was qualitative, consisting of documental and bibliographic research, beyond field research. The mainly data gathering techniques were the observation and interview, aiming to sketch a profile of the informers, interpreting the meaning of their representations and perception. The sample is formed by fifteen farms with Lawful Forest Reserve Areas already endorsed on notary‟s office and implemented, located in thirteen towns of Rio Grande do Sul state. The absolute majority of the interviewed people were favorable with positive perception regarding the Lawful Forest Reserve. The mainly criteria determinant to the decision making process, based on the sustainability, regarding Lawful Forest Reserve, were the need and the desire of nature preservation, compensation possibility, and the affirmative stance regarding the law‟s obligation. Thirteen of the fifteen interviewed people affirmed that the farmers‟ participation on the environmental laws formulation was few democratic. To the majority of the sample, the Lawful Forest Reserve implement did not bring any significant change on the family‟s income, did not interfering on the farm‟s economy and in the productive system, although many interviewed people express worry with the economic feasibility of the smaller farms. Generally, the requirement of Lawful Forest Reserve has showed to be sustainable in the economic dimension. About the environmental dimension, it can be inferred that Lawful Forest Reserve in these farms is sustainable, because the already existing native forest became more protected with the endorsement on notary‟s office, or then, the owner did the planting of native forest trees where wasn‟t forest. About social sustainability, there weren‟t relevant changes in the family, community and social relations with the Lawful Forest Reserve implement, which does not seem to have caused social problems in the studied region, neither to its actors. The interviewed people, generally, are not against of Lawful Forest Reserve, but would like to have more information about it, and also more participation. They emphasize that each situation must be analysed case by case, considering that of this way, more farmers would be willing to implement the Lawful Forest Reserve, through the Payment for Environmental Services.