Users Guide

Table Of Contents
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Exponent: 65537 (0x10001)
X509v3 extensions:
X509v3 Subject Key Identifier:
75:22:3F:BE:99:B7:FA:A1:5B:1D:68:0B:E9:5E:21:7D:83:62:AC:DB
X509v3 Authority Key Identifier:
keyid:75:22:3F:BE:99:B7:FA:A1:5B:1D:68:0B:E9:5E:21:7D:83:62:AC:DB
X509v3 Basic Constraints: critical
CA:TRUE
X509v3 Key Usage: critical
Digital Signature, Certificate Sign, CRL Sign
Signature Algorithm: sha256WithRSAEncryption
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Delete CA server certificate
OS10# crypto ca-cert delete Dell_rootCA1.crt
Successfully removed certificate
Certificate revocation
Before the switch and an external device, such as a RADIUS or TLS server, set up a secure connection, they present CA-signed
certificates to each other. The certificate validation allows peers to authenticate each other's identity, and is followed by
checking to ensure that the certificate has not been revoked by the issuing CA.
A certificate includes the URL and other information about the certificate distribution point (CDP) that issued the certificate.
Using the URL, OS10 accesses the CDP to download a certificate revocation list (CRL). If the external device's certificate is on
the list or if the CDP server does not respond, the connection is not set up.
A certificate revocation list contains a list of all revoked certificates. The CA that issued the certificates maintains the CRL. CAs
publish a new CRL at periodic intervals. An OS10 switch automatically downloads the new CRL and uses it to verify certificates
presented by connecting devices.
1164
Security