Abstract: There are provided an apparatus and method for detecting an executable code, capable of verifying reliability of an extracted signature by determining whether there is present an executable code in network data by using instruction pattern information related calling mechanism of function for distinguishing the executable code from a non-executable code, the method including: forming instructions by reverse assembling network data suspicious as an attack; comparing the respective formed instructions with instruction patterns according to calling mechanism of function; and determining whether there is present an executable code in the network data according to a result of the comparing

Abstract: Provided is a method for generating indirect trust binding between peers in a P2P network that allows communication and interaction between peers with trust even without an integrated processing server. In the method, a source peer transmits an initialization request message to a destination peer to receive a session identifier of the destination peer from the destination peer. The source peer arbitrarily selects a relay peer and then encrypts and generates indirect trust binding to the destination peer through the relay peer. The generation result of the indirect trust binding is analyzed, and trust of the destination peer is measured. The method allows the source peer to encrypt and generate the indirect trust binding to the destination peer even without a separate integrated processing server, and to be aware of trust of the destination peer.