Provably secure and efficient identity-based key agreement protocol for independent PKGs using ECC

Provably Secure and Efficient Identity-BasedKeyAgreement Protocol for Independent PKGsUsing ECC

Key agreement protocols are essential for secure communications in open and distributed environments. Recently identity-based key agreement protocols have been increasingly researched because of the simplicity of a public key management. The basic idea behind an identity-based cryptosystem is that a public key is the identity (an arbitrary string) of a user, and the corresponding private key is...

A new provably secure authentication and key agreement protocol for SIP using ECC

SIP is playing a key role in the IP based services and has been chosen as the protocol for multimedia application in 3G mobile networks by the Third-Generation Partnership Project. The authentication mechanism proposed in SIP specification is HTTP digest based authentication, which allows malicious parties to impersonate other parties or to charge calls to other parties, furthermore, other secu...

An Efficient ECC-based Authentication and Key Agreement Protocol

Public-key cryptography is commonly used to authenticate communicating entities in some networks. One of the key tools in this way is to use the elliptic curves cryptography (ECC) which is relatively lightweight due to its shorter key size compared to the conventional River-Shamir-Adleman (RSA) method. This paper is proposing an efficient protocol by analysing two variants of ECC-based wireless...

On the Security of Wang's Provably Secure Identity-based Key Agreement Protocol

In a 2005 IACR report, Wang published an efficient identity-based key agreement protocol (IDAK) suitable for resource constrained devices. The author shows that the IDAK key agreement protocol is secure in the BellareRogaway model with random oracles and also provides separate ad-hoc security proofs claiming that the IDAK protocol is not vulnerable to Key Compromise Impersonation attacks and al...

Provably secure one-round identity-based authenticated asymmetric group key agreement protocol

The newly introduced notion of asymmetric group key agreement (AGKA) enables external users to securely send messages to group members. The existing AGKA is only secure against passive attacks which are too weak to capture the attacks in the real world. In this paper, we formalize an active security model for identity-based authenticated asymmetric group key agreement (IB-AAGKA). We then presen...

Provably-Secure Enhancement on 3GPP Authentication and Key Agreement Protocol