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Table 3 Security analysis and comparisons.

From: A Secure and Robust Connectivity Architecture for Smart Devices and Applications

   Existing RF4CE Bluetooth Proposed System
Authentication Feature None ECDH(Mode4) PKC.
  Storage cost None Max2048 bits Max2048 bits
  Computation cost None 3E 3E
Integrity Feature Packet level Packet level Packet level and quick mode
  Storage cost 255*80 bytes 25580 bytes
  Computation cost 255 times 255 times
Confidentiality Feature None (Plaintext) None (Plaintext) Main mode
  Storage cost None None 128 bits
  Computation cost None None E
  1. Public Key Cryptosystem; E denotes the exponentiation; BT does not use key seed distribution scheme.