The Experts below are selected from a list of 30972 Experts worldwide ranked by ideXlab platform
Alec Wolman - One of the best experts on this subject based on the ideXlab platform.
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ctpm a cloud tpm for cross device trusted applications
Networked Systems Design and Implementation, 2014Co-Authors: Chen Chen, Stefan Saroiu, Alec WolmanAbstract:Current Trusted Platform Modules (TPMs) are illsuited for cross-device scenarios in trusted mobile applications because they hinder the seamless sharing of data across multiple devices. This paper presents cTPM, an extension of the TPM's design that adds an additional root key to the TPM and shares that root key with the cloud. As a result, the cloud can create and share TPM-protected keys and data across multiple devices owned by one user. Further, the additional key lets the cTPM allocate cloud-backed Remote Storage so that each TPM can benefit from a trusted real-time clock and high-performance, non-volatile Storage. This paper shows that cTPM is practical, versatile, and easily applicable to trusted mobile applications. Our simple change to the TPM specification is viable because its fundamental concepts - a primary root key and off-chip, NV Storage - are already found in the current specification, TPM 2.0. By avoiding a clean-slate redesign, we sidestep the difficult challenge of re-verifying the security properties of a new TPM design. We demonstrate cTPM's versatility with two case studies: extending Pasture with additional functionality, and reimplementing TrInc without the need for extra hardware.
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ctpm a cloud tpm for cross device trusted applications
Log in, 2014Co-Authors: Chen Chen, Stefan Saroiu, Alec WolmanAbstract:Current Trusted Platform Modules (TPMs) are ill-suited for use in mobile services because they hinder sharing data across multiple devices seamlessly, they lack access to a trusted real-time clock, and their non-volatile Storage performs poorly. We present cloud TPM (cTPM), an extension of the TPM’s design, to address these problems. cTPM includes two features: a cloud seed shared between the TPM and the cloud, and Remote Storage in addition to the on-chip Storage. cTPM allows the cloud to create and share TPM-protected keys across multiple devices, to manage a portion of a mobile device’s TPM Storage, and to provide each TPM with a trusted real-time clock and with high-performance non-volatile Storage.
Chen Chen - One of the best experts on this subject based on the ideXlab platform.
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ctpm a cloud tpm for cross device trusted applications
Networked Systems Design and Implementation, 2014Co-Authors: Chen Chen, Stefan Saroiu, Alec WolmanAbstract:Current Trusted Platform Modules (TPMs) are illsuited for cross-device scenarios in trusted mobile applications because they hinder the seamless sharing of data across multiple devices. This paper presents cTPM, an extension of the TPM's design that adds an additional root key to the TPM and shares that root key with the cloud. As a result, the cloud can create and share TPM-protected keys and data across multiple devices owned by one user. Further, the additional key lets the cTPM allocate cloud-backed Remote Storage so that each TPM can benefit from a trusted real-time clock and high-performance, non-volatile Storage. This paper shows that cTPM is practical, versatile, and easily applicable to trusted mobile applications. Our simple change to the TPM specification is viable because its fundamental concepts - a primary root key and off-chip, NV Storage - are already found in the current specification, TPM 2.0. By avoiding a clean-slate redesign, we sidestep the difficult challenge of re-verifying the security properties of a new TPM design. We demonstrate cTPM's versatility with two case studies: extending Pasture with additional functionality, and reimplementing TrInc without the need for extra hardware.
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ctpm a cloud tpm for cross device trusted applications
Log in, 2014Co-Authors: Chen Chen, Stefan Saroiu, Alec WolmanAbstract:Current Trusted Platform Modules (TPMs) are ill-suited for use in mobile services because they hinder sharing data across multiple devices seamlessly, they lack access to a trusted real-time clock, and their non-volatile Storage performs poorly. We present cloud TPM (cTPM), an extension of the TPM’s design, to address these problems. cTPM includes two features: a cloud seed shared between the TPM and the cloud, and Remote Storage in addition to the on-chip Storage. cTPM allows the cloud to create and share TPM-protected keys across multiple devices, to manage a portion of a mobile device’s TPM Storage, and to provide each TPM with a trusted real-time clock and with high-performance non-volatile Storage.
Stefan Saroiu - One of the best experts on this subject based on the ideXlab platform.
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ctpm a cloud tpm for cross device trusted applications
Networked Systems Design and Implementation, 2014Co-Authors: Chen Chen, Stefan Saroiu, Alec WolmanAbstract:Current Trusted Platform Modules (TPMs) are illsuited for cross-device scenarios in trusted mobile applications because they hinder the seamless sharing of data across multiple devices. This paper presents cTPM, an extension of the TPM's design that adds an additional root key to the TPM and shares that root key with the cloud. As a result, the cloud can create and share TPM-protected keys and data across multiple devices owned by one user. Further, the additional key lets the cTPM allocate cloud-backed Remote Storage so that each TPM can benefit from a trusted real-time clock and high-performance, non-volatile Storage. This paper shows that cTPM is practical, versatile, and easily applicable to trusted mobile applications. Our simple change to the TPM specification is viable because its fundamental concepts - a primary root key and off-chip, NV Storage - are already found in the current specification, TPM 2.0. By avoiding a clean-slate redesign, we sidestep the difficult challenge of re-verifying the security properties of a new TPM design. We demonstrate cTPM's versatility with two case studies: extending Pasture with additional functionality, and reimplementing TrInc without the need for extra hardware.
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ctpm a cloud tpm for cross device trusted applications
Log in, 2014Co-Authors: Chen Chen, Stefan Saroiu, Alec WolmanAbstract:Current Trusted Platform Modules (TPMs) are ill-suited for use in mobile services because they hinder sharing data across multiple devices seamlessly, they lack access to a trusted real-time clock, and their non-volatile Storage performs poorly. We present cloud TPM (cTPM), an extension of the TPM’s design, to address these problems. cTPM includes two features: a cloud seed shared between the TPM and the cloud, and Remote Storage in addition to the on-chip Storage. cTPM allows the cloud to create and share TPM-protected keys across multiple devices, to manage a portion of a mobile device’s TPM Storage, and to provide each TPM with a trusted real-time clock and with high-performance non-volatile Storage.
Sung Soon Park - One of the best experts on this subject based on the ideXlab platform.
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iscsi multi connection and error recovery method for Remote Storage system in mobile appliance
Lecture Notes in Computer Science, 2006Co-Authors: Shaikh Muhammad Allayear, Sung Soon ParkAbstract:The continued growth of both mobile appliance and wireless Internet technologies is bringing a new telecommunication revolution and has extended the demand of various services with mobile appliance. However, during working with wireless access devices, users have a limited amount of Storage available to them due to their limited size and weight. To relieve this problem iSCSI (Internet Small Computer Interface) Remote Storage system would be one solution but the question is high availability and performance. In this paper, we propose a new approach of Multi-Connection in one session based Remote Storage system for mobile appliance with error recovery method that avoids drastic reduction of transmission rate from TCP congestion control in wireless environment as compared to traditional iSCSI.
Office For National Statistics - One of the best experts on this subject based on the ideXlab platform.
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2011 Census Microdata Individual Safeguarded Sample (Local Authority): England and Wales
2015Co-Authors: Office For National StatisticsAbstract:Abstract copyright UK Data Service and data collection copyright owner.The 2011 Census Microdata Individual Safeguarded Sample (Local Authority): England and Wales data collection forms part of the statistical outputs from the 2011 UK Census. A safeguarded microdata sample of individuals has been identified as a key Census user requirement, and was highlighted as part of a report specifying microdata products from the 2011 Census written by an expert user, Dr. Jo Wathan from the University of Manchester. The purpose of a safeguarded sample of individuals is to be able to disseminate a detailed microdata file without onerous licensing conditions, by reducing the overall amount of detail compared to the secure samples. Whilst supplying sufficient detail on core variables to fulfil the intended aim of the microdata products, the safeguarded sample is a valuable multi-purpose research file that will be used on a wide range of projects. (For Censuses prior to 2011, these data may have been referred to as 'Samples of Anonymised Records', or SARSs.) In total, five microdata samples are proposed from the 2011 Census:one public, a Teaching File of individuals (see SN 7613);two safeguarded, one file of individuals at regional level (see SN 7605) and one at local authority level (this study, SN 7682);and two secure, one file of households and one of individuals This safeguarded sample is of 5% of the total population at Local Authority level, and contains a similar level of detail to the equivalent End User Licence Census 2001 Microdata samples. These samples have a low risk of disclosure; but not nil. Registered UK Data Service Census users can download the data to their laptops after agreeing terms and conditions that include constraints on data management under Remote Storage conditions. Further information can be found on the Office for National Statistics Census microdata webpage. Corresponding Regional and Local Authority level data for Northern Ireland are held under SNs 7769 and 7770, and for Scotland under SNs 7834 and 7835. Main Topics:The variables cover: Usual address one year ago; Age of individual; Age of household; reference person; Distance travelled to work; Alternative Household Composition; Provision of unpaid care; Number of cars and vans; Central heating; Establishment caters for specific group (physical disability; learning disability; mental illness; intermediate care; substance misuse; end of life care; respite care; chronic illness care; acute illness care; older people; school children; university and/or college students; armed forces personnel; prisoners/offenders; asylum seekers; paying guests; homeless people; nurses/doctors; staff; seasonal/temporary workers; other); Country of birth; Country of birth of household reference person; Whether concealed family; Country of residence; Education selected characteristics, household indicator; Employment selected characteristics, household indicator; Health and disability selected characteristics, household indicator; Housing selected characteristics, household indicator; Deprivation indicators of a household; Long-term health problems; Family dependent children; Economically active; Employment type; Nature of establishment; Ethnic group of household reference person; Ethnic group; Family status; General health; Household language; Level of highest qualifications; Hours worked per week; Number of people in household who provide care; Other National identity (not UK and Irish); Number of individuals in household with long-standing illness/disability; Industry of business; Intention to stay in the UK; International Standard Classification of Occupations – 2 digit codes; Local Authority/LGD of enumeration address; Type of landlord; English proficiency; Living arrangements; Last year worked; Main language; Marital Status; Multiple ethnic identifier; Migration indicator; Wholly moving household indicator; Household multiple religion indicator; Distance moved from address one year ago; Region of Origin; British national identity; English national identity; Irish national identity; Northern Irish national identity; Other national identity; Scottish national identity; Welsh national identity; National Statistics Socio-Economic Classification; Household reference person NS-SEC; Standard Occupational Classification – 2 digit codes; Passports held; Exact pension age (on Census Day) indicator; Pensioner household; Person of pensionable age indicator; Whether usual resident, student living away, or short-term resident; Position within communal establishment; Number of persons per room; Other Passports held (Not including UK and Ireland); Government Office Region; Relationship to household reference person; Religion; Household or communal establishment; Census return by internet or paper; Cohabiting same-sex couples; Type of second address; Household reference person social grade; Approximated social grade; whether accommodation is self-contained; Sex; Single adult household; Single adult households; Standard Occupation Classification - 3 digit codes; Stay at second address by country of second address; Student accommodation; Schoolchild or student in full-time education; Supervisor; Tenure of dwelling; Tenure; Travel to work; Type of accommodation; Unemployment history; Number of visitors on census night; Workers in generation one of family; Place of work; Whether reads Welsh (Wales only); Whether speaks Welsh (Wales only); Whether understands Welsh (Wales only); Whether writes Welsh (Wales only); Comparison of where you live and work; Workplace; Usual address one year ago was a student term-time/boarding school address in the UK; and Year of Arrival in UK (England and Wales)
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2011 Census Microdata Individual Safeguarded Sample (Regional): England and Wales
2014Co-Authors: Office For National StatisticsAbstract:Abstract copyright UK Data Service and data collection copyright owner.The 2011 Census Microdata Individual Safeguarded Sample (Regional): England and Wales data collection forms part of the statistical outputs from the 2011 UK Census. A safeguarded microdata sample of individuals has been identified as a key Census user requirement, and was highlighted as part of a report specifying microdata products from the 2011 Census written by an expert user, Dr. Jo Wathan from the University of Manchester. The purpose of a safeguarded sample of individuals is to be able to disseminate a detailed microdata file without onerous licensing conditions, by reducing the overall amount of detail compared to the secure samples. Whilst supplying sufficient detail on core variables to fulfil the intended aim of the microdata products, the safeguarded sample is a valuable multi-purpose research file that will be used on a wide range of projects. (For Censuses prior to 2011, these data may have been referred to as 'Samples of Anonymised Records', or SARSs.) In total, five microdata samples are proposed from the 2011 Census:one public, a Teaching File of individuals (see SN 7613);two safeguarded, one file of individuals at regional level (this study, SN 7605) and one at local authority level (see SN 7682);and two secure, one file of households and one of individuals This safeguarded sample is of 5% of the total population at Region level, and contain a similar level of detail to the equivalent End User Licence Census 2001 Microdata samples. These samples have a low risk of disclosure; but not nil. Registered UK Data Service Census users can download the data to their laptops after agreeing terms and conditions that include constraints on data management under Remote Storage conditions. Further information can be found on the Office for National Statistics Census microdata webpage. Corresponding Regional and Local Authority level data for Northern Ireland are held under SNs 7769 and 7770, and for Scotland under SNs 7834 and 7835. Main Topics:The variables cover: Usual address one year ago; Age of individual; Age of household; reference person; Distance travelled to work; Alternative Household Composition; Provision of unpaid care; Number of cars and vans; Central heating; Establishment caters for specific group (physical disability; learning disability; mental illness; intermediate care; substance misuse; end of life care; respite care; chronic illness care; acute illness care; older people; school children; university and/or college students; armed forces personnel; prisoners/offenders; asylum seekers; paying guests; homeless people; nurses/doctors; staff; seasonal/temporary workers; other); Country of birth; Country of birth of household reference person; Whether concealed family; Country of residence; Education selected characteristics, household indicator; Employment selected characteristics, household indicator; Health and disability selected characteristics, household indicator; Housing selected characteristics, household indicator; Deprivation indicators of a household; Long-term health problems; Family dependent children; Economically active; Employment type; Nature of establishment; Ethnic group of household reference person; Ethnic group; Family status; General health; Household language; Level of highest qualifications; Hours worked per week; Number of people in household who provide care; Other National identity (not UK and Irish); Number of individuals in household with long-standing illness/disability; Industry of business; Intention to stay in the UK; International Standard Classification of Occupations – 2 digit codes; Type of landlord; English proficiency; Living arrangements; Last year worked; Main language; Marital Status; Multiple ethnic identifier; Migration indicator; Wholly moving household indicator; Household multiple religion indicator; Distance moved from address one year ago; Region of Origin; British national identity; English national identity; Irish national identity; Northern Irish national identity; Other national identity; Scottish national identity; Welsh national identity; National Statistics Socio-Economic Classification; Household reference person NS-SEC; Standard Occupational Classification – 2 digit codes; Passports held; Exact pension age (on Census Day) indicator; Pensioner household; Person of pensionable age indicator; Whether usual resident, student living away, or short-term resident; Position within communal establishment; Number of persons per room; Other Passports held (Not including UK and Ireland); Government Office Region; Relationship to household reference person; Religion; Household or communal establishment; Census return by internet or paper; Cohabiting same-sex couples; Type of second address; Household reference person social grade; Approximated social grade; whether accommodation is self-contained; Sex; Single adult household; Single adult households; Standard Occupation Classification - 3 digit codes; Stay at second address by country of second address; Student accommodation; Schoolchild or student in full-time education; Supervisor; Tenure of dwelling; Tenure; Travel to work; Type of accommodation; Unemployment history; Number of visitors on census night; Workers in generation one of family; Place of work; Whether reads Welsh (Wales only); Whether speaks Welsh (Wales only); Whether understands Welsh (Wales only); Whether writes Welsh (Wales only); Comparison of where you live and work; Workplace; Usual address one year ago was a student term-time/boarding school address in the UK; and Year of Arrival in UK (England and Wales)
