At TCC 2005, Backes and Cachin proposed a new and very strong notion of security for public key steganography: secrecy against adaptive chosen covertext attack (SS-CCA); and posed ...
Abstract. Dittmann, Katzenbeisser, Schallhart and Veith (IACR ePrint 2004) introduced the notion of invertible media authentication schemes, embedding authentication data in media ...