Verify signatures
If you're required to approve a form that another user has filled out and signed, you'll want to verify the signature so you can be sure of the signer's identity.
The verification process involves re-creating parts of the digital signature
using current data and comparing the results with the original signature. If
they match, the signature is valid. This means that the person identified in
the verification dialog box is the person who signed the form, and the signed
data has not changed.
If verification of a digital signature fails, you'll see a message indicating
this. Verification fails if the originally signed data or the digital signature
has been changed or tampered with. If a form author adds a cell to a form after
the form has been signed, the signature will remain in the verified state as
long as the data in the cells does not change.
NOTE
- If you complete a form in a workflow step that has a Status Valid signature, the state of the signature cell becomes Status Unknown at the next step. If you save the form instead of sending it to the next step, and then you open it, the state of the signature changes to Status Unkown.
To verify a signature
- With the form open in the browser window, click the signed field or click
Status Unknown. The Signature
Verification dialog box appears.
The authenticity of the digital signature is checked and a valid signature or invalid signature message, name of the person who signed the form, and the date and time it was signed are displayed.
Choose one of the following buttons from the Signature Verification dialog box:- Click Details to display the name of the person who signed the form, the name of the organization, serial number, and date. Click OK to close the Signature Details dialog box.
- Click Delete to delete the signature. For information about deleting signatures, see Delete Signatures.
- Click OK to close the Signature Verification dialog box.
The Status Valid or Status Invalid icon appears in the signature cell. If the contents of a cell that the signature is signing has changed, the Status Invalid message icon appears in the Signature cell.
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