CodeBender: Remote Software Protection Using Orthogonal Replacement

CodeBender implements a novel client replacement strategy to counter the malicious host problem and address the problem of guaranteeing client-code security. CodeBender is a tool that implements a novel client-replacement strategy to counter the malicious host problem. It works by limiting the client code´s validity and, when the code expires, by having the server provide a new client that replaces the former one. The complexity of analyzing frequently changing, always different (orthogonal) program code deters an adversary´s reverse engineering efforts. We´ve implemented CodeBender and tested its practicability in two case studies.