Issues in Human Interaction and Trust
In a utopian world, security and cryptography would be a complete waste of time and effort. If you could trust everyone, everyone could trust you, and everybody knew that nobody would intentionally do any harm to anyone, then there would be no need to keep secrets, prove identity, or control access. Sadly, this is not reality. Therefore, we must take precautions to protect ourselves from untrustworthy individuals and organizations with conflicting interests.
Risk and Benefit
Whenever we interact with the world, we inevitably encounter both risks and benefits. The obvious strategy is to attempt to take only risks such that the expected benefit outweighs the expected risk. You want to strike a balance in which ...
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