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CHALLENGE-RESPONSE AUTHENTICATION

Learn about strong authentication methods using challenge-response protocols. Explore network, host, and workstation authentication techniques, including user IDs, secret keys, and encrypted responses.

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CHALLENGE-RESPONSE AUTHENTICATION

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  1. CHALLENGE-RESPONSE AUTHENTICATION Prof. Ravi Sandhu

  2. STRONG AUTHENTICATIONCHALLENGE RESPONSE NETWORK HOST WORK STATION User ID Challenge Response

  3. CHALLENGE RESPONSE Secret Key Challenge Encrypt Response

  4. CHALLENGE RESPONSE Secret Key Challenge HMAC Response

  5. TIME SYNCHRONIZED NETWORK HOST WORK STATION User ID One Time Password

  6. TIME SYNCHRONIZED Secret Key Time HMAC One Time Password

  7. PUBLIC KEY SIGNATURE BASED Private Key Challenge Sign Response=signed(challenge)

  8. PUBLIC KEY SIGNATURE BASED Private Key Time Sign Response=signed(Time)

  9. PUBLIC KEY ENCRYPTION BASED Private Key Challenge=Encrypt(Response) Decrypt Response

  10. PUBLIC KEY ENCRYPT BASED Private Key Time verify Encrypt(Decrypted(Time)) Decrypt Response=Decrypted(Time)

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