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Privacy enhancing technologies (PET) is a general term for a set of computer tools, applications and mechanisms which - when integrated in online services or applications, or when used in conjunction with such services or applications - allow online users to protect the privacy of their personally identifiable information (PII) provided to and handled by such services or applications. Privacy enhancing technologies can also be defined as: : ''Privacy-Enhancing Technologies is a system of ICT measures protecting informational privacy by eliminating or minimising personal data thereby preventing unnecessary or unwanted processing of personal data, without the loss of the functionality of the information system.'' : ==Goals of PETs== PETs aim at allowing users to take one or more of the following actions related to their personal data sent to, and used by, online service providers, merchants or other users: * increase control over their personal data sent to, and used by, online service providers and merchants (or other online users) (self-determination) * data minimisation: minimise the personal data collected and used by service providers and merchants * choose the degree of anonymity (e.g. by using pseudonyms, anonymisers or anonymous data credentials) * choose the degree of unlinkability (e.g. by using multiple virtual identities) * achieve informed consent about giving their personal data to online service providers and merchants * provide the possibility to negotiate the terms and conditions of giving their personal data to online service providers and merchants (data handling/privacy policy negotiation).〔The EU PRIME research project's (Vision on privacy enhanced identity management )〕 In Privacy Negotiations, consumers and service providers establish, maintain, and refine privacy policies as individualised agreements through the ongoing choice amongst service alternatives. In incentivised privacy negotiations, the transaction partners may additionally bundle the personal information collection and processing schemes with monetary or non-monetary rewards.〔(Key Facts on Privacy Negotiations )〕 * provide the possibility to have these negotiated terms and conditions technically enforced by the infrastructures of online service providers and merchants (i.e. not just having to rely on promises, but being confident that it is technically impossible for service providers to violate the agreed upon data handling conditions) * provide the possibility to remotely audit the enforcement of these terms and conditions at the online service providers and merchants (assurance) * data tracking: allow users to log, archive and look up past transfers of their personal data, including what data has been transferred, when, to whom and under what conditions * facilitate the use of their legal rights of data inspection, correction and deletion 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Privacy-enhancing technologies」の詳細全文を読む スポンサード リンク
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