Importance

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Abstract

A system and method that allows a business to obtain statistics to measure the progress of a marketing campaign while maintaining the privacy of consumer information, is provided. Using Private Information Retrieval (PIR) and other cryptographic privacy enhancing technologies, the consumer can request actions and receive responses from the business. The requests and responses are kept private from the business using PIR. The marketing strategy is represented as a graph with nodes representing the consumer states and links representing allowed transitions. The consumer request contains information about the consumer's state in the business's marketing strategy so that only allowed responses are made to the consumer. The business can monitor the overall execution of the marketing plan but cannot see the states or transitions of individual customers or their actions, searches or responses.

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First Claim