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Lack of trust and secrecy for communications laid foundation to a new area of security. Information security concerns with the protecting information and information systems from unauthorized access, use, disclosure, disruption, modification or destruction. Hence, encapsulation of the original message with some kind of encryption techniques provides security. Most of the previous encryption techniques concentrated only on the secrecy of the message and not the size of the data being sent. Hence, the quality of service and bandwidth becomes a bottleneck here. There is a problem of how to provide secrecy and also efficient bandwidth usage using special compression techniques which can compress an encrypted text.
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