Creating Clickwrap signaturesAdded by IBM on August 8, 2013 | Version 1 (Original)
|Clickwrap signatures are electronic signatures that do not require digital certificates. While they still offer a measure of security due to an encryption algorithm, Clickwrap signatures are not security tools.
Instead, Clickwrap signatures offer a simple method of obtaining electronic evidence of user acceptance to an electronic agreement. The Clickwrap signing ceremony authenticates users through a series of questions and answers, and records the signer's consent. Clickwrap style agreements are frequently found in licensing agreements and other online transactions.
To create a signature button that uses the Clickwrap engine, set the following parameters in the signformat option:
For example, the XFDL code for a generic signature button using the Clickwrap engine looks like this:
- MIME type – The MIME type that is used to store the signature information. You should always use application/vnd.xfdl.
- engine – The name of the signing engine to use. In this case, ClickWrap.
- delete – Optional. This flag sets whether the user can delete the signature. By default, users can delete all signatures. If you want to prevent a signature from being deleted, set this to off.
This creates a minimal Clickwrap signing ceremony with default options, as shown:
You can add more features to the signing ceremony by using additional parameters. For example, you may want to ask the signer some questions to help confirm their identity, and then have them type some text to confirm their agreement. These additional parameters are discussed in the next section.
You can customize your Clickwrap signing ceremony by adding parameters to the signformat option.