Unconditionally Secure Anonymous Encryption and Group Authentication

Hanaoka, Goichiro; Shikata, Junji; Hanaoka, Yumiko; Imai, Hideki

doi:10.1007/3-540-36178-2_5

Cited by 14 publications

(6 citation statements)

References 31 publications

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“…As explained in [11] and [13], Homage simply validates that previously registered devices are already members of a particular group, rather than authenticating them as a group. Along similar lines, Hanaoka et al [12] define and formalize a group authentication code , with which any previously authenticated user can generate an authenticated message and send it to the receiver. The receiver is then able to verify the authenticity of the received message while maintaining the privacy of the user.…”

Section: Related Studiesmentioning

confidence: 99%

Maturation of auditory brainstem projections and calyces in the congenitally deaf (dn/dn) mouse

Youssoufian

Couchman

Shivdasani

et al. 2007

J of Comparative Neurology

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The deaf dn/dn mouse is a valuable model of human congenital deafness. In this study we used the lipophylic dye DiA to trace auditory nerve and cochlear nucleus projections in the dn/dn mouse. In both normal and deaf mice, the ipsilateral projections from the anteroventral cochlear nucleus (AVCN) to the lateral superior olive (LSO), and the contralateral projections from the AVCN to the medial nucleus of the trapezoid body (MNTB) were intact. With age, there was a noted increase in the fenestration of the endbulb and calyx of Held, and this morphological maturation was also observed in the deaf mice, although there was a significant difference in total endbulb volume at P20 between normal and deaf mice. However, total calyceal volume was not significantly different between normal and deaf mice. There was electrophysiological evidence of in vivo spontaneous ventral cochlear nucleus activity in normal and deaf animals, indicating that this activity may be responsible for the appropriate connectivity in the deaf mice. Our results indicate that congenital deafness caused by the dn/dn mutation does not result in aberrant projections between the AVCN and the ipsilateral MNTB and contralateral LSO but can cause abnormalities in endbulb size.

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Section: Related Studiesmentioning

confidence: 99%

Maturation of auditory brainstem projections and calyces in the congenitally deaf (dn/dn) mouse

Youssoufian

Couchman

Shivdasani

et al. 2007

J of Comparative Neurology

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“…The second notion, NM, is formalized in context of unconditional security based on the idea of that of computational security [5] [6] [14] [15]. Also, other formalization of NM in unconditional setting are also proposed in [17] [21]. The third and fourth ones, IntC and IntP, are formalized in unconditional security setting based on the idea of those in [6] where these notions are formalized in the context of symmetric encryption in terms of computational security setting.…”

Section: Key Generation and Distribution By Ta: The Tamentioning

confidence: 99%

Authenticated encryption and steganography in unconditional security setting

Matsumoto

Shikata

2005

IEEE Information Theory Workshop on Theory and Practice in Information-Theoretic Security, 2005.

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We address authenticated encryption, the cryptographic technique that simultaneously provides both confidentiality and authenticity, and steganography that hides the very existence of messages. We focus on the security of these techniques against adversaries with unbounded computational resources. First, we reveal the strong security notion of unconditionally secure authenticated encryption and show how to achieve it. Second, we study unconditionally secure stegosystems under active attacks and show how to construct them by the above mentioned unconditionally secure authenticated encryption schemes.

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“…Using GA-code, any authenticated user can send an authenticated message. The receiver can verify that the message has been sent from a legitimate user but at the same time retains his anonymity [31], [32].…”

Section:  Group Authentication Codes (Ga-codes)mentioning

confidence: 99%

Towards a Framework for Supporting Unconditionally Secure Authentication Services within E-Government Infrastructures

Al-Janabi

2016

juhd

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Abstract-It has been noticed by many researchers that the speed of ICT advancement in developing, deploying, and using e-government infrastructures is much faster than the development and deployment of security services. Therefore, government organizations are still suffering from the existence and emerging of security risks. One important category of cryptographic primitives that needs to be considered in this respect is the unconditionally secure message authentication codes (or A-codes). These A-codes are cryptographically approached based on information theory. They offer unconditional security, i.e., security independent of the computing power of an adversary. For many years, it was widely thought that A-codes were impractical for real applications. However, in recent years, many A-codes have been developed which are extremely efficient in terms of computations and key requirements.The aim of this work is to show the importance and validation of including unconditionally secure authentication services within e-government infrastructures. We believe that all main e-government services can get benefit from that in a way or another. This includes Government to Citizen (G2C), Government to Business (G2B), Government to Government (G2G), and Government to Constituents (E-Democracy) services. The work highlights the basic requirements for a general framework that facilitates the inclusion of such authentication services within the security infrastructure of e-government.

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Unconditionally Secure Anonymous Encryption and Group Authentication

Cited by 14 publications

References 31 publications

Maturation of auditory brainstem projections and calyces in the congenitally deaf (dn/dn) mouse

Maturation of auditory brainstem projections and calyces in the congenitally deaf (dn/dn) mouse

Authenticated encryption and steganography in unconditional security setting

Towards a Framework for Supporting Unconditionally Secure Authentication Services within E-Government Infrastructures

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