CA based password-only authenticated key exchange

This paper presents a secure password-only authenticated key exchange method, designed based on the features of linear and nonlinear group as well as non-group CAs, It takes the advantage of [1] and it utilizes [2] in providing authentication and key establishment over an insecure channel using basically a small password, without risk of off-line dictionary attack. In light of the various known as well as the unknown attacks, it offers the intruders a high order of complexity to gain the knowledge of the key. Also, due to the regular, modular and cascadable CA based logic structure, the method can be found to be significant and attractive in comparison to the other methods.