Pairing-Free Certificateless Signature with Security Proof

Table 1

Performance comparisons.

Schemes	Computational cost		Signature size (bytes)	Secure against Type I	Secure against Type II
	Sign	Verify
Choi et al. [18]	3PM	2PM + 3P	64	Yes	No
He et al. [21]	1M	3M	41	Yes	No
Tsai et al. [23]	1M	4M	41	Yes	No
Gong and Li [24]	1M	4M	41	Yes	Yes
Yeh et al. [25]	1M	4M	41	Yes	Yes
Our scheme	1M	3M	41	Yes	Yes