1 / 15

ACCESS CONTROL MANAGEMENT

ACCESS CONTROL MANAGEMENT. By: Poonam Gupta Sowmya Sugumaran. Project Goal. The primary goal of access control management is to preserve and protect the confidentiality, integrity, and availability of information, systems, and resources. . What is Access Control.

brilliant
Download Presentation

ACCESS CONTROL MANAGEMENT

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. ACCESS CONTROL MANAGEMENT By: Poonam Gupta Sowmya Sugumaran

  2. Project Goal • The primary goal of access control management is to preserve and protect the confidentiality, integrity, and availability of information, systems, and resources.

  3. What is Access Control • process by which users are identified and granted certain privileges to resources • limits the use of a resource

  4. Types of Access Control • Discretionary-owner • Mandatory-authorities • Role-based-according to role • Rule-based-pre determined rules

  5. Access Control Technologies • Tokens • Smart cards • Encrypted keys • Passwords Popular Technologies

  6. Kerberos • Authentication Protocol • For Client/Server Application • Using Secret Key Cryptography

  7. VPN Gateway Internet ACP (Kerberos)

  8. Kerberos Three thingshappenbetween client and server when client Initiate to allocateresources • AS Exchange • TGS Exchange • Client/Server (CS) Exchange

  9. http://technet.microsoft.com/en-us/library/bb742516.aspx

  10. Technical Details User name Password Policies AS Server KGS Sever 2 3 1 Resource 1 4 Resource 2 4

  11. Technical Details Step 1: User-Client Logon (i)User-username & pswrd-client (ii)client-H(pswrd)-secret key of user Step 2: Client Authentication(Client-AS) (i)Client sends user ID AS generates secret key from database (ii)AS sends 2 messages to client: Msg A- Client/TGS session key encrypted by user’s secret key Msg B- TGT encrypted with TGS’s secret key

  12. Contd.. Step 3: Client Service Authorization(Client-TGS) (i)Client-2 messages to TGS: Msg C- TGT & service ID Msg D- Authenticator(user ID, timestamp) encrypted using client/TGS session key (ii)TGS decrypts TGT & authenticator and sends 2 msgs to client: Msg E-Client-to-Server ticket Msg F-Client/Server session key encrypted with Client/TGS session key.

  13. Step 4: Client Service Request (Client- Service Server) (i)Client sends 2 msgs to SS: Msg E(Client/SS ticket) Msg G-Authenticator (user ID, timestamp, C/S session key) (ii)SS decrypts to get C/S session key SS decrypts authenticator and sends msg to client Msg H-Timestamp in client’s authenticator+1 encrypted using C/S key

  14. Roadmap of the Project

  15. Thank You…!!!

More Related