Security Analysis of the Digital Transmission Copy Protection Specification.
Haibo Tian, Wang Yu-min · 2006
Abstract- This paper analyzes the secure protocols in the digital transmission copy protection (DTCP) specification. The full authentication protocol in the specification is a combination of the Diffie-Hellman (DH) key exchange algorithm and the digital signature technique. It is claimed that the protocol can prevent “man in the middle ” attacks. However, we can apply at least three classical attacks to the protocol. All of them can overthrow the authentication objective. Further, a sender or receiver mismatching is discovered. The receiver mismatching threats the system integrity property of the DTCP specification.