Certificate-Based Encryption Resilient to Continual Leakage in the Standard Model

Table 1

Security properties and leakage ratio comparison.

Schemes	Model	Hard assumption	Leakage-resilience	Continual leakage-resilience	Leakage ratio
Scheme [3]	Standard	q-ABDHE and DBDH	×	×	—
Scheme [6]	Standard	Decisional 3-party Diffie–Hellman	√	×	≈1
Scheme [8]	Standard	Three assumptions in composite order bilinear groups	√	×	1/3
Our scheme	Standard	Decisional truncated q-ABDHE and decisional 1-BDHI	√	√	≈1