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6. Security versus Performance: Security mechanisms usually require additional system resources (computational power, bandwidth, etc.) In 80’s and 90’s when computational and communicational resources are scarce, one should make a compromise between the security and the performance of the system. Thanks to Moore’s law, today we are in a much better position and efficiency becomes a less serious issue for security. Nevertheless, there are still limits for security with respect to system performance especially when resource constrained devices (e.g., smartcards, RFID chips) are to be used. |
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