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Information Technology is widely used in health care for efficiently managing the Personal Health Records (PHR) in a cost effective manner. Under this scenario a computing paradigm (cloud computing) where the resources are provided as services will offer a ubiquitous access to medical data. However, there have been wide privacy concerns as personal health information could be exposed to those third party servers and to unauthorized parties. In the authors' paper a hybrid password authentication scheme based on shape and text is used. It uses shapes of strokes on the grid as the origin passwords and allows users to login with text passwords with the help of traditional input devices. Hidden-camera and shoulder-surfing is highly resistible with this approach.
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