One-time passwords are used to replace or enhance traditional passwords, and use pseudorandomness and cryptographic hash functions to generate a shared key or seed. They can be intercepted or rerouted, and hard tokens can get lost, damaged, or stolen, but they are still more secure than traditional passwords. However, attackers can still learn the password through phishing attacks.
Stanford University
Winter 2023
This course offers an introduction to cryptographic techniques used in computer security, covering encryption, message integrity, digital signatures, key management, and more. It is suitable for advanced undergraduates and masters students with some proof techniques and programming experience.
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