Enhanced secure anonymous authentication scheme for roaming service in global mobility networks

Privacy-Preserving Mobile Roaming Authentication with Security Proof in Global Mobility Networks

“…Compared with the preliminary work, the modified scheme Performance cost Estimated time (s) Mun et al [7] 11 ℎ + 4 0.2578 Li and Lee [9] 15 + 7 ℎ + 14 7.9553 Hu et al [10] 11 + 6 ℎ + 8 0.77 Chen et al [11] 6 + 16 ℎ 0.0602 Xie et al [12] 6 + 9 ℎ + 7 0.44385 Chen et al [13] 6 + 11 ℎ + 4 3.1723 Xie et al [14] 8 + 8 ℎ + 9 4.2501 Our scheme 6 + 7 ℎ + 7 0.44285…”

“…According to [7] schemes are more efficient than others since Chen et al 's scheme is completely based on hash and symmetric encryption/decryption operations but does not provide perfect forward secrecy and Mun et al 's scheme is vulnerable to several attacks such as impersonation attack, replay attack, man-in-the-middle attack, and verification table stolen attack. And our scheme only needs 0.44 seconds in login and key agreement which keeps low performance cost.…”

Cryptanalysis and Improvements of an Anonymous Authentication Scheme for Roaming Service in Global Mobility Networks

“…Therefore the attacker computes a session key KMFi h(a i b i P) using the received a i P from FA. Similarly, Kim et al's scheme [12] suffers from such impersonation attacks in the update session key phase.…”

A Provably-Anonymous Authentication Scheme for Roaming Services

“…Not surprising, roaming authentication schemes are a subject of active computer science research, and examples of roaming authentication schemes for smart cards include those presented in [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. Smart-card-based schemes have attracted the attention of researchers due to their potential to be widely deployed.…”