Implementing the Secure Protocol for Exchanging the Symmetric Key of FPGA-based Embedded Systems
Tran Thanh, Tran Hoang Vu, Nguyen Van Cuong, Pham Ngoc Nam · Research and Development on Information and Communication Technology · 2014
Cryptographic solution for protecting data which pass through an insecure public network is widely applied. To ensure the data confidentiality and availability, the secret key must be exchanged securely between parties before beginning a transaction session. This paper presents a protocol to enhance the flexibility and secrecy of symmetric key exchange over the Internet. Our approach uses an asymmetric encryption algorithm to protect symmetric encryption keys from thefts and tampers over a transmission line. In addition, this paper presents a protocol to ensure the integrity, confidentiality of the symmetric key, and the freshness of a transaction session. Experimental results from a prototype system based on FPGA are also revealed.