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Table 5 Performance comparison computation costs among related protocols in the authentication phase

From: Scalable, efficient, and secure RFID with elliptic curve cryptosystem for Internet of Things in healthcare environment

 

Time complexity

Time complexity in unit of TMUL.

Tag

Reader

Liao and Hsiao [36]

5TPM

5TPM

[12000]TMUL

Alamr et al. [35]

4TPM

5TPM

[10800]TMUL

Zhao [3]

5TPM

5TPM

[12000]TMUL

Shen et al. [28]

3TPM + 4TH

3TPM + 3TH

[7200]TMUL

Zhang and Qi [26]

2TPM + 2TH

1TPM + 2TH

[3600]TMUL

Farash et al. [7]

2TPM + 2TH

1TPM + 2TH

[3600]TMUL

Proposed scheme

1TPM + 2TH

1TPM + 2TH

[2400]TMUL