When you use DSC on adobe reader or any PDF Form and it shows an error like The Windows Cryptographic Service Provider reported an error: An Internal error has been detected, but the source is unknown. Error code:2148532244 or Cryptographic Error while signing PDF file.

Solution:

When you use DSC on adobe reader or any PDF Form and it shows an error like The Windows Cryptographic Service Provider reported an error: An Internal error has been detected, but the source is unknown. Error code:2148532244 or Cryptographic Error while signing PDF file.

In this case, uninstall all version of the adobe reader and install Reader 10.1.4 version from MCA21 or use the link http://www.mca.gov.in/MCA21/dca/common/system.html