Infowise Signature Field is a custom field that enables signing SharePoint items or document content and properties with user name and password to comply with regulatory requirements. The field stores, in an encrypted form, the user identity, time and date of signing, item version (if enabled) and a hash sum of signed fields' values. Entering a valid user name and password pair during the data entry or editing phase will sign the item and a small icon will appear to indicate that the item has been signed and the signature is intact. If the item is edited again, without re-signing, the signature is broken and the icon is replaced to indicate this fact.
The field can be set up to sign one or more of the other fields in the list, the signature will only affect the field that the field is attached to, changes to other fields of the item will not break the signature.

1. Works with any number of columns in a list/document library
2. Requires entry of user name and password
3. Checks user identity on data entry, does not rely on the identity of the currently logged on user. This allows you to work in kiosk mode, e.g. on manufacturing floors
4. Visual notification of valid/invalid signature
5. Real-time validation of signatures
6. Sign both list properties and document content
7. Encrypted hash value of signed column values at the moment of signing to prevent any tempering
8. Signature includes user name, time of signing and item version
9. Check out our blog for more details

Requirements:
* SharePoint

The license of this software is Free Trial Software, the price is $449.00, you can free download and get a free trial.