Table 3 Security analysis and comparisons.
From: A Secure and Robust Connectivity Architecture for Smart Devices and Applications
| Â | Â | Existing RF4CE | Bluetooth | Proposed System |
|---|---|---|---|---|
Authentication | Feature | None | ECDH(Mode4) | PKC |
| Â | Storage cost | None | Max2048 bits | Max2048 bits |
| Â | Computation cost | None | 3E | 3E |
Integrity | Feature | Packet level | Packet level | Packet level and quick mode |
| Â | Storage cost | 255*80 bytes |
|
|
| Â | Computation cost | 255 times |
|
|
Confidentiality | Feature | None (Plaintext) | None (Plaintext) | Main mode |
|  | Storage cost | None | None | 128 bits |
| Â | Computation cost | None | None |
|
.
255
80 bytes
255 times
E
Public Key Cryptosystem; 
E denotes the exponentiation; 
BT does not use key seed distribution scheme.
Public Key Cryptosystem; 
E denotes the exponentiation; 
BT does not use key seed distribution scheme.