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Entity Authentication and Key Agreement
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Entity Authentication and Key Agreement. CSE 651. Entity Authentication. Problem: Alice wants to prove to Bob that she is Alice and/or vice versa. Basic idea: Alice shows that she knows some secrecy which is presumably known only to Alice (and Bob).
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Entity Authentication and Key Agreement
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Entity Authentication Problem: Alice wants to prove to Bob that she is Alice and/or vice versa. Basic idea: Alice shows that she knows some secrecy which is presumably known only to Alice (and Bob). That secrecy could be, for example: - Alice’s password or PIN - a MAC or encryption key shared by Alice and Bob, or - Alice’s RSA private key.
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