Open Access

Table 4

Security comparison among relevant schemes

Scheme R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11
Hu et al[10] × ×
Sutrala et al[14] × × × ×
Xie et al[15] × × ×
Srinivas et al[16] × × × × × × ×
Sahoo et al[17] × × ×
Proposed scheme

R1: User anonymity; R2: User untraceability; R3: Mutual authentication; R4: Resistance to reply attack; R5: Resistance to MITM attack; R6: Resistance to DOS attack; R7: Forward security; R8: Resistance to impersonation attack; R9: Resistance to stolen smart card attack; R10: Resistance to known session key attack; R11: Resistance to off-line password guessing attack; √ denotes the scheme can provide the corresponding attribute; × denotes the scheme cannot provide the corresponding attribute

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