Fig 1.
System model of online trading environment.
Fig 2.
Flowchart for complete flow of information between the Buyer and the OTP through mediator.
Fig 3.
Flowchart for complete flow of information between the seller and the OTP through mediator.
Table 1.
Notations used in the proposed work.
Fig 4.
User authentication phase of proposed scheme.
Fig 5.
Mediator authentication phase of the proposed scheme.
Fig 6.
Computational cost for certificate and signature verification.
Table 2.
Computational cost of various schemes.
Table 3.
Communication cost of various schemes.
Fig 7.
Communication cost of various schemes for single user.
Fig 8.
Communication cost of various schemes for ‘n’ users.
Fig 9.
Mediator serving capability.