  The wide spread of click-and-mortar model offers an opportunity to consider a
universal commercial interaction method. However, issues like privacy
protection resist the widespread acceptance. Traditional SET and SSL protocols
are designed using Public Key Infrastructure (PKI) where extensive computations
are carried out. Our aim is here to design a protocol to secure any type of
commercial interaction for online platform, which also considers mobile
platform. Therefore, our focus is on reducing heavy computations and making the
overall procedure faster. A Secured Click and Mortar Commercial Interaction
(SCMCI) protocol is proposed here to improve the performance of the commercial
interaction procedure through replacing time consuming public key encryption
and decryption algorithms by hybrid logic including the use of symmetric key.
Comparative analysis has been done with traditional SET protocol using cryptool
to prove the efficiency of the protocol.
