Customized Data Exchange Gateway (DEG) for Automated File Exchange Across Networks

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This paper addresses a customized solution to ensure security of the trusted network while receiving files from applications residing on less trusted networks. The solution is a four layered secured file transfer service which controls and authenticates the data transfer through service blocking mechanism and digital signatures at the first two levels and by introducing a novel concept of privileged socket creation and finger printing TCP packets at layer three and four by customizing the Linux kernel.