Analysis and Improvement on an Authentication Scheme for Wireless Sensor Networks in Internet of Things Environment | Wuhan University Journal of Natural Sciences

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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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