1 / 6

PlutoPlus: Policy and PKI Plans for FY00

PlutoPlus: Policy and PKI Plans for FY00. Sheila Frankel Systems and Network Security Group Computer Security Division NIST sheila.frankel@nist.gov. PlutoPlus ‘99. Peer authentication : pre-shared secret keys Policy: Same policy for all peers Initiator proposes single policy

marcy
Download Presentation

PlutoPlus: Policy and PKI Plans for FY00

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. PlutoPlus:Policy and PKI Plans for FY00 Sheila Frankel Systems and Network Security Group Computer Security Division NIST sheila.frankel@nist.gov

  2. PlutoPlus ‘99 • Peer authentication : • pre-shared secret keys • Policy: • Same policy for all peers • Initiator proposes single policy • Responder must accept proposed policy

  3. Y2K PlutoPlus • Peer authentication : choice of pre-shared secret keys, digital signature, or public key encryption • Policy: • Flexible policy database • Different policies for different peers • Initiator proposes multiple policies • Responder selects most preferable policy

  4. What Constitutes Policy? • Encryption algorithm: DES, 3DES, Blowfish, IDEA, RC5 • Encryption Key Length • Authentication algorithm: HMAC-MD5, HMAC-SHA1 • Diffie-Hellman group: prime with 96, 128, or 192 bytes • Encapsulation mode: tunnel or transport

  5. Policy Database Elements (cont’d) • Peer authentication: pre-shared secret key, digital signature, public key encryption • Negotiated Security Association’s Lifetime: seconds and/or kilobytes protected • Perfect Forward Secrecy for negotiated keys

  6. Why PKI Interaction? • Peer authentication with pre-shared keys: • pre-shared secret key used to prove identity • limited scalability • opportunistic encryption impossible • Peer authentication with PKI • digital signature or public key used to prove identity • scalable • opportunistic encryption possible

More Related