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Acrobat 9 Family of Products
Validating Signatures
Security Feature User Guide
Troubleshooting an Identity Problem 119
Figure 84 Certificates: Verifying originator
3. In the Certificate data panel, scroll to MD5-digest and SHA-1 digest, and note the numbers.
4. Contact the certificate's originator, and verify the MD5-digest and SHA-1 numbers are correct.
5. After the certificate is verified, display the Trust tab and add the certificate to the trusted identities list.
6. Specify certificate trust settings so that it can be used as a trusted root, to certify documents, and so on.
For details, see
“Certificate Trust Settings” on page 35
.
7.5.1.4 Checking Certificate Revocation Status
Only the certificate issuer (a certificate authority) has the right to revoke a certificate. A certificate could be
revoked because its security might be compromised, it could be invalid for some reason, or the owner of
the ID might have left the company. Adobe applications check revocation status as part of its public key
authentication.
To check a certificate’s revocation status:
1. Choose the Certificate Viewer’s Revocation tab.
2. Choose
Check Revocation
.
The button is only active if revocation checking has not occurred and it is possible to do a check.
Revocation checking is not possible for trusted roots and self-signed certificates.
3. Choose
OK
.