A novel deniable authentication protocol using generalized ElGamal signature scheme

Confidential deniable authentication using promised signcryption

“…Because some interactive DAPs (Dwork et al, 1998;Aumann and Rabin, 1998;Deng et al, 2001;Fan et al, 2002) do not satisfy the intended receiver property (Shao, 2004), the first non-interactive DAP based on the generalized ElGamal signature scheme is described in Shao (2004). To reduce the communication cost between the sender and receiver, Lee et al (2007) provided a non-interactive protocol based on the generalized ElGamal signature scheme. To prove deniability and unforgeability, a security model based on designated verifier proofs (Wang and Song, 2009) was proposed for non-interactive DAPs.…”

“…To improve the efficiency of the Hwang and Ma protocol, Hwang and Chao (2009) proposed the noninteractive DAP with anonymity and sender protection. However, non-interactive DAPs (Shao, 2004;Lee et al, 2007;Wang and Song, 2009;Susilo and Mu, 2004a,b;Ma, 2007, 2008;Hwang and Chao, 2009) do not provide confidentiality.…”

“…Because the message is transmitted in plaintext in noninteractive protocols (Shao, 2004;Lee et al, 2007;Wang and Song, 2009;Susilo and Mu, 2004a,b;Ma, 2007, 2008;Hwang and Chao, 2009), the message may reveal some useful identity information about senders or receivers. This revelation may damage the sender's or receiver's benefit.…”

A countable and time-bound password-based user authentication scheme for the applications of electronic commerce

“…So far, many password-based user authentication schemes have been proposed [3][4][5][6]12,13,15,17,19,24,[33][34][35]. However, they only provide a service to verify the login user's identity.…”

A Simple Deniable Authentication Protocol Based on Quantum Key Distribution

“…Unfortunately, Yoon et al [5] found that their protocol suffers from the intruder masquerading attack and subsequently proposed their enhanced version. Thereafter, various deniable authentication protocols have been devised [6,7] . However, the security of these protocols are mainly based on the assumptions of computational complexity, and they are vulnerable to the strong ability of some advanced quantum algorithms [8,9].…”