In this paper, we proposed a novel triple algorithm based on RSA (Rivest-\nShamir-Adleman), AES (Advanced Encryption Standard), and TwoFish in\norder to further improve the security of Bluetooth that is currently using only\n128-bit AES for encryption in its latest versions (Bluetooth 4.0 - 5.0). Furthermore,\nolder Bluetooth 1.0A ââ?¬â?? 3.0 + HS (High-Speed) devices use E0\nstream cipher for encryption that has been shown to be weak by numerous\nresearchers and thus it could be considered insufficient for high security purposes\nnowadays. In our novel approach, the triple protection of AES, RSA,\nand TWOFISH would enhance the level of security, which shields the data\ntransmission in the Bluetooth. As the first step of our novel approach, we first\nencrypted the message by using AES with 128-bit key and then further encrypted\nit by using Twofish with the same 128-bit key. Finally, the 128-bit key\ngenerated in the beginning will be encrypted by using RSA with 1024-bit key\nto protect its over-the-air transfer. In the receiving end, the decryption\nprocess goes in reverse order compared with encryption process. We showed\nwith experimental figures that our novel algorithm improved the security of\nBluetooth encryption by eliminating all known weaknesses and thus made\ndata exchange between Bluetooth devices secure.
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