Table of contentsAn Introduction to Kerberos What this talk is about What this talk is not about What is Kerberos? Slide 5 Kerberos: etymology PowerPoint Presentation Fluffy, the 3 headed dog, from ÒHarry Potter and the Sorcerers StoneÓ Some Kerberos benefits So, what is Authentication? Password based Authentication Cryptographic Authentication Encryption and Decryption Symmetric Key Cryptography Asymmetric Key Cryptography Communicating Parties Simple shared-secret based cryptographic authentication Add mutual authentication Problems with this scheme Mediated Authentication Slide 21 Slide 22 Slide 23 Kerberos uses timestamps Kerberos (roughly) Needham-Schroeder Protocol Kerberos (detailed) Kerberos ÒprincipalÓ Kerberos without TGS Slide 30 Slide 31 Slide 32 Combining 2 previous diags Slide 34 Review: Kerberos Credentials Ticket Granting Service (TGS) Slide 37 Slide 38 Kerberos with TGS TGS Benefits Slide 41 Slide 42 Slide 43 Slide 44 Pre-authentication Slide 46 Kerberos & Two-factor auth Kerberos: summary Advantages of Kerberos (1) Advantages of Kerberos (2) Kerberos caveats References References (cont) Questions or comments? |
Author: Shumon Huque Further information: Best viewed with |
