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C hallenge H andshake A uthentication P rotocol (CHAP)

C hallenge H andshake A uthentication P rotocol (CHAP). Login USERID Request. 1. Request PASSWORD. 2. Encrypt and Send PASSWORD. 3. 4. 5. 6. CHAP Process. W o r k s t a t i o n. S E R V E R. Server Encrypts PASSWORD in USERID table in preparation for comparison.

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C hallenge H andshake A uthentication P rotocol (CHAP)

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  1. Challenge Handshake Authentication Protocol(CHAP)

  2. Login USERID Request 1 Request PASSWORD 2 Encrypt and Send PASSWORD 3 4 5 6 CHAP Process W o r k s t a t i o n S E R V E R Server Encrypts PASSWORD in USERID table in preparation for comparison Server compares both Encrypted PASSWORDs Accepts (Authenticates User) or Denies Login Request (Determined by Results of Encrypted PASSWORD comparison)

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