Browsing by Author "Kella, S."
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Item A new secure protocol for multi-attribute multi-round e-reverse auction using Online Trusted Third Party(2011) Srinath, T.R.; Kella, S.; Jenamani, M.We develop a secure protocol for multi-attribute multi-round reverse auction. The scheme comprises of three interactive parties: the Online Trusted Third Party (TTP), the Auctioneer and the Bidder. Online TTP is the one who gets certified from Certification Authority (CA), Auctioneer is the buyer and bidders are the sellers. The TTP confirms and authenticates the identities of bidders and the auctioneer; the auctioneer issues the bidding keys to bidders and schedules the auction rounds. Encryption and Decryption of bids is done by combined key made from public and secret shares of TTP and auctioneer using ElGamal cryptosystem. TTP Combines the keys and gives to auctioneer at appropriate time. TTP generates pseudonym for bidder which is used as unique identifier and makes the bidder anonymous to auctioneer till last round. The scheme developed here can effectively reduce the computational load on the auctioneer and bidders. It provides the following security features anonymity, non-repudiation, bid privacy, easy revocation, no framing, data integrity and single registration. The proposed scheme can assure a secure bidding environment for the sellers. © 2011 IEEE.Item A reverse sealed-bid auction system for mobile commerce(UK Simulation Society Clifton Lane Nottingham NG11 8NS, 2012) Singh, M.P.; Kella, S.In recent years, the demand for mobile commerce has increased. Due to this increased demand, mobile devices usage in internet auctions has also increased. In this paper, we propose a reverse sealed-bid auction model using collaborative mobile agents (MoRSAS) which can be used on mobile-based environment. We also proposed a new auction protocol using ECC (Elliptic Curve Cryptosystem) based signcryption scheme which reduces the computational load and communication overhead, providing high security with small key size. In our proposal, Trusted Dealer (TD) is the one who generates auction keys and key shares, also works like registration manager. Our method reduces the network load and executes the auction process efficiently. The proposed protocol satisfies the security requirements of sealed-bid auction protocol, like confidentiality, anonymity, bid privacy etc. © 2012, UK Simulation Society. All rights reserved.Item A new secure protocol for multi-attribute multi-round e-reverse auction using Online Trusted Third Party(2011) Srinath, T.R.; Kella, S.; Jenamani, M.We develop a secure protocol for multi-attribute multi-round reverse auction. The scheme comprises of three interactive parties: the Online Trusted Third Party (TTP), the Auctioneer and the Bidder. Online TTP is the one who gets certified from Certification Authority (CA), Auctioneer is the buyer and bidders are the sellers. The TTP confirms and authenticates the identities of bidders and the auctioneer; the auctioneer issues the bidding keys to bidders and schedules the auction rounds. Encryption and Decryption of bids is done by combined key made from public and secret shares of TTP and auctioneer using ElGamal cryptosystem. TTP Combines the keys and gives to auctioneer at appropriate time. TTP generates pseudonym for bidder which is used as unique identifier and makes the bidder anonymous to auctioneer till last round. The scheme developed here can effectively reduce the computational load on the auctioneer and bidders. It provides the following security features anonymity, non-repudiation, bid privacy, easy revocation, no framing, data integrity and single registration. The proposed scheme can assure a secure bidding environment for the sellers. � 2011 IEEE.