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Privacy of message during transactions between grid nodes belonging to public realm has become a mounting apprehension for nodes engaged in the communication. While it is imperative to ensure a high level of security for geographically dispersed distributed nodes, privacy issues for concealing individual profiles and identities are worth concerning. Privacy in the user profile management is prime concern of this paper. We explored an extension of onion routing with dynamic token exchange for protecting from intruders within service oriented computational grid backbone. Our scheme allows anonymous connections with protection of identities of the communicating nodes.