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SCEP

SCEP. Simple Certificate Enrollment Protocol. Widely Deployed. Cisco routers, VPN client, and CA Microsoft CA Entrust CA RSA toolkit and CA Netscape CA Verisign CA Baltimore/Unicert. Features. Initial Enrollment Renewal (including client key rollover)

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SCEP

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  1. SCEP • Simple Certificate Enrollment Protocol

  2. Widely Deployed • Cisco routers, VPN client, and CA • Microsoft CA • Entrust CA • RSA toolkit and CA • Netscape CA • Verisign CA • Baltimore/Unicert

  3. Features • Initial Enrollment • Renewal (including client key rollover) • CA and Client Certificate retrieval • CA key and certificate rollover • Extensible

  4. Mature Protocol • Has Been in use for over 7 years • many interoperable implementations • Now on draft 15

  5. Enrollment • PKCS-10 to specify what should be in the cert • Signed and Encrypted with PKCS-7 • Can Use One-Time Password for authentication

  6. Renewal • Signed by prior client certificate

  7. CA Key Rollover • “Next” CA Certificate generated ahead of time • Clients Can Retrieve “Next” CA Certificate • Response is signed by current CA certificate • Roll Over when Old Certificate Expires • Can roll over “early” if Root CA compromised

  8. Current draft • draft-nourse-scep-15.txt • Informational • nourse@cisco.com

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