Adding Someone To Your Trusted Identity List; Adding A Certificate From A Signature - Adobe 22002484 Manual

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Security Feature User Guide
each other. It is also possible to create a group from any number of contacts so that security can be applied
to all group members with a single action. Users manage contacts, groups, and certificates by choosing
Advanced (Acrobat) or Document (Reader) > Manage Trusted Identities and opening the Trusted
Identities Manager.

3.2 Adding Someone to Your Trusted Identity List

As shown in
will be participating in signing and certificate security workflows. You get this information from a server, a
file, or from a signed document. For signing workflows, you can get this information during the signature
validation process. For certificate security workflows involving encryption, you must request the
information ahead of time so you can encrypt the document with the document recipient's public key.

3.2.1 Adding a Certificate From a Signature

When you receive a signed document from someone whose certificate is not in your trusted identity list
AND does not chain up to a trust anchor (another certificate that is trusted), the signing certificate's
validity is unknown and a yellow triangle appears in the document message bar. To validate the signature,
you will need to trust one of the certificates in the certification chain. You could trust the signer (the
end-entity certificate), one of the EE certificate issuer (an intermediate certificate), or the topmost
certificate authority (the root).
Because revocation checking does not occur for certificates that are directly trusted (a trust anchor), it is
best practice to trust a certificate other than the signer's. That is, trust a certificate as high up in the chain
as is practical for your signing workflows.
To add a certificate to your trusted identities list directly from a signature:
1. Right click on the signature and choose Show Signature Properties.
2. Choose Show Certificate.
3. When the Certificate Viewer appears, choose the Trust tab.
4. Choose Add to Trusted Identities
Figure 23 Manage Trusted Identities menu item
Figure 22, you build a list of trusted identities by getting digital ID certificates from those who
Managing Certificate Trust and Trusted Identities
(Figure 24).
Adding Someone to Your Trusted Identity List 32