Oskar L. wrote: > Robert J. Hansen wrote: >> why trust is a necessary precondition for authentication. Without it, >> everything falls apart. > > You can trust Trevor, but this trust is useless if you have no way of > authenticating that Trevor really is Trevor. > > Trust is not needed for authentication. You can authenticate a lot of > things just by looking at them, your friends for example.
You're not trusting your own recollection, your memory, that they are indeed your friends? If a stroke or other accident wipes away those memories, they will no longer be recognized as your friends; the memory, hence, the trust has been removed. You're back to trusting because you say so. Say what you want, it's all authentication is built on trust.
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