How do you determine identity with hash values? Alice could say that svchost.exe's hash is deadbeefdeadbeef and Bob could say it's baadcodebaadcode, but, of course, they both could be right because there are umpteen versions of svchost.exe. So, how do you solve the identity problem in order to detect evil?
It depends on the entity being hashed, but in the case of software, it's usually a version number. In the case of source code, maybe a git commit hash.
