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Journal of Cloud Computing

Advances, Systems and Applications

Table 1 Computation cost comparison

From: Multi-Recipient encryption with keyword search without pairing for cloud storage

Schemes

Encrypt

Trapdoor

Test

MR

PF

IKGA

BDOP-PEKS[2]

n(2te+2th+tp)

te+th

tp+th

No

No

No

BSS-PKE/PEKS[3]

n(3te+4th+tp)

te+th

tp+te+th

No

No

No

HL-PAEKS[9]

n(3te+th)

tp+te+th

2tp

No

No

Yes

QY-PAEKSR[13]

n(3te+2th+tp)

2te+th

th+tp

No

No

Yes

Ours

(2n+1)th+(2n+1)te

2te+2th

te+2th

Yes

Yes

Yes

  1. “MR” denotes if the scheme withstand multi-recipient.
  2. “PF” denotes if the scheme withstand pairing free operation.
  3. “IKGA” denotes if the scheme withstand the inside off-line keyword guessing attack
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