Efficient Provider Authentication for Bidirectional Broadcasting Service

Ohtake, Go; Hanaoka, Goichiro; Ogawa, Kazuto

doi:10.1587/transfun.e93.a.1039

Cited by 5 publications

(14 citation statements)

References 8 publications

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“…We modified a key-insulated signature (KIS) scheme [9] and applied it to the protocol. In particular, a temporal identity is issued to a service provider that is composed from the time period over which the single signing key is valid and the provider's real identity, and it is used as a time period in a KIS scheme.…”

Section: Our Contributionmentioning

confidence: 99%

“…DSA, ECDSA, RSA-PSS, and RSASSA signature schemes) is used, there are three variations that are the same as those of Model 1. Although these characteristics are the same as those of Model 1-1, Model 1-2, and Model 1-3, the signature schemes [2]- [4], [6], [7], [9], [11], [12] that have only one verification key for many signing keys can be used in this model. Hence, requirement (1) can be satisfied by using such schemes.…”

Section: (3) Service Providers Must Be Revoked Efficientlymentioning

confidence: 99%

“…3. IBS schemes [2], [3], [6], [11], [12] and KIS schemes [4], [7], [9] can satisfy this requirement, as they have one verification key for many signing keys. In this section, we review these signature schemes, describe two generic constructions of the application authentication protocol that apply them to Model 2, and evaluate these constructions from viewpoints of the other requirements.…”

Section: Generic Construction Of Application Authentication From Id-bmentioning

confidence: 99%

“…That is, their verification keys are unchanged. A KIS scheme [4], [7], [9] consists of five polynomialtime algorithms (Gen, Upd * , Upd, Sign, Vrfy).…”

Section: Key-insulated Signature Schemementioning

confidence: 99%

“…Here, we propose a practical application authentication protocol for hybrid services offered through broadcasting and communications networks. Our protocol applies the KIS scheme proposed by Ohtake et al [9].…”

Section: Practical Protocolmentioning

confidence: 99%

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Application Authentication System with Efficiently Updatable Signature

Ogawa

Ohtake

2016

IEICE Trans. Inf. & Syst.

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SUMMARYBroadcasting and communications networks can be used together to offer hybrid broadcasting services that incorporate a variety of personalized information from communications networks in TV programs. To enable these services, many different applications have to be run on a user terminal, and it is necessary to establish an environment where any service provider can create applications and distribute them to users. The danger is that malicious service providers might distribute applications which may cause user terminals to take undesirable actions. To prevent such applications from being distributed, we propose an application authentication protocol for hybrid broadcasting and communications services. Concretely, we modify a key-insulated signature scheme and apply it to this protocol. In the protocol, a broadcaster distributes a distinct signing key to each service provider that the broadcaster trusts. As a result, users can verify that an application is reliable. If a signed application causes an undesirable action, a broadcaster can revoke the privileges and permissions of the service provider. In addition, the broadcaster can update the signing key. That is, our protocol is secure against leakage of the signing key by the broadcaster and service providers. Moreover, a user terminal uses only one verification key for verifying a signature, so the memory needed for storing the verification key in the user terminal is very small. With our protocol, users can securely receive hybrid services from broadcasting and communications networks. key words: hybrid services through broadcasting and communications networks, application authentication, ID-based signature, key-insulated signature

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Section: Our Contributionmentioning

confidence: 99%

Section: (3) Service Providers Must Be Revoked Efficientlymentioning

confidence: 99%

Section: Generic Construction Of Application Authentication From Id-bmentioning

confidence: 99%

“…That is, their verification keys are unchanged. A KIS scheme [4], [7], [9] consists of five polynomialtime algorithms (Gen, Upd * , Upd, Sign, Vrfy).…”

Section: Key-insulated Signature Schemementioning

confidence: 99%

Section: Practical Protocolmentioning

confidence: 99%

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Application Authentication System with Efficiently Updatable Signature

Ogawa

Ohtake

2016

IEICE Trans. Inf. & Syst.

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A Practical Provider Authentication System for Bidirectional Broadcast Service

Matsuda

Hanaoka

Matsuura

et al.

Lecture Notes in Computer Science

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Several content distribution services via the Internet have been developed, and a number of bidirectional broadcasting services will be provided in the near future. Since such bidirectional broadcasting treats personal information of the users, provider authentication is necessary. Taking the currently existing broadcasting system using CAS cards into account, Ohtake et al. recently proposed the provider authentication system which utilizes key-insulated signature (KIS) schemes. However, the authors did not refer to details of what kind of KIS should be used. In this paper we supplement their works in terms of KIS specification. We carefully identify what kind of KIS should be used and propose concrete KIS schemes which realize both the reliability and the robustness required for the bidirectional broadcasting service.

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Application Authentication for Hybrid Services of Broadcasting and Communications Networks

Ohtake

Ogawa

2012

Information Security Applications

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Efficient Provider Authentication for Bidirectional Broadcasting Service

Cited by 5 publications

References 8 publications

Application Authentication System with Efficiently Updatable Signature

Application Authentication System with Efficiently Updatable Signature

A Practical Provider Authentication System for Bidirectional Broadcast Service

Application Authentication for Hybrid Services of Broadcasting and Communications Networks

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