Identity-Based Key Agreement for Peer Group Communication from Pairings

Wu, Shyi-Tsong; Chiu, Jung-Hui; Chieu, Bin-Chang

doi:10.1093/ietfec/e88-a.10.2762

Cited by 4 publications

(7 citation statements)

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“…In this letter, we have shown that Wu et al's ID-based key agreement for peer group communication is not as secure as stated by the authors [3]. Our proposed attacks, such as an impersonation attack and a modification of z i attack, compromised Wu et al's scheme, causing the group to fail to agree upon a common communication key.…”

Section: Discussionmentioning

confidence: 73%

“…In 2005, Wu et al [3] proposed an identity-based key agreement for peer group communication from pairings. In this letter, we propose attacks on their scheme, by which the group fails to agree upon a common communication key.…”

Section: Discussionmentioning

confidence: 99%

“…More details of the scheme can be found in the original paper [3]. We assume that the readers understand the tree based model and how to construct a session key from session random numbers in this model.…”

Section: Wu Et Al's Id-based Key Agreement Schemementioning

confidence: 99%

“…Lee et al's protocol [2] used a tree approach to provide group key agreement without authentication using bilinear pairings. Recently, Wu et al [3] proposed an identity-based key agreement protocol for peer group communication including user authentication. However, in this letter, we propose possible attacks on this ID-based group key agreement scheme with which the group members cannot agree upon a common group key.…”

Section: Introductionmentioning

confidence: 99%

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Security Analysis of an ID-Based Key Agreement for Peer Group Communication

Vo¹,

Kim²

2007

IEICE Transactions on Fundamentals of Electronics, Communicatio

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Section: Discussionmentioning

confidence: 73%

Section: Discussionmentioning

confidence: 99%

Section: Wu Et Al's Id-based Key Agreement Schemementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Security Analysis of an ID-Based Key Agreement for Peer Group Communication

Vo¹,

Kim²

2007

IEICE Transactions on Fundamentals of Electronics, Communicatio

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“…It utilized a binary key tree structure and achieves authentication with the ID-based cryptosystem, hence avoids management of certificates. Since then, many ID-based group key exchange protocols [7][8][9][10][11][12][13][14] using bilinear pairings have been proposed. All authors of the protocols above do not analyze whether their protocol can resist the attack of ephemeral private key revealing or not, and all these protocols utilize the bilinear pairings which have an expensive cost when computed.…”

Section: Introductionmentioning

confidence: 99%

A dynamic ID-based authenticated group key exchange protocol without pairings

Xie

2010

Wuhan Univ. J. Nat. Sci.

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So far, most of the proposed group key exchange (GKE) protocols do not consider the attack when the adversary reveals the parties' ephemeral private keys without their long-term private keys, so these GKE protocols are insecure on this attack. In this paper, for resisting above attack, we propose a dynamic authenticated group key exchange (AGKE) protocol in the ID-based setting. Different from previous ID-based protocols, our protocol does not utilize bilinear pairings, which makes it more efficient. At last, we analyze the security of the protocol in the eCK (enhanced Canetti-Krawczyk) security model.Group key exchange (GKE) protocols are useful in many collaborative and distributed applications such as audio-video conferences, multiplayer game, multicast and broadcast communication, and so on. So far, many efficient GKE protocols have been proposed for various application environments. But the security of GKE protocols has been focused on less than protocols themselves. In 2001, Bresson et al [1][2][3] first formalized the security models of GKE protocols. Their security models defined the desired notions of security as authenticated key exchange (AKE) security and mutual authentication. But this security model does not consider the attack when the adversary reveals the parties' ephemeral secrets. In 2007, LaMacchia et al [4] proposed a security model (we note it as the eCK (enhanced Canetti-Krawczyk) model) and defined an AKE-security to resist the attack of revealing ephemeral secrets of users without their long-lived keys.In 1984, Shamir [5] proposed the idea of ID-based cryptosystem where the identity information of a user functioned as his public key. Since then, numerous ID-based group key exchange protocols have been developed. The first ID-based authenticated group key agreement protocol was proposed by Reddy et al [6] . It utilized a binary key tree structure and achieves authentication with the ID-based cryptosystem, hence avoids management of certificates. Since then, many ID-based group key exchange protocols [7][8][9][10][11][12][13][14] using bilinear pairings have been proposed. All authors of the protocols above

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A novel group key agreement protocol for wireless mesh network

You

Xie²

2011

Computers & Electrical Engineering

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Identity-Based Key Agreement for Peer Group Communication from Pairings

Cited by 4 publications

References 0 publications

Security Analysis of an ID-Based Key Agreement for Peer Group Communication

Security Analysis of an ID-Based Key Agreement for Peer Group Communication

A dynamic ID-based authenticated group key exchange protocol without pairings

A novel group key agreement protocol for wireless mesh network

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