Define digital signature and electronic signature certificate. Elucidate the procedure for obtaining the electronic signature certificate.

"Digital signature" means authentication of any electronic record by a subscriber by means of an electronic method or procedure in accordance with the provisions of Section 3 of the Information and Technology Act 2000. [Section 2(1) (p)] Electronic Signature Certificate" means an Electronic Signature Certificate issued under section 35 and includes Digital Signature Certificate. [Section 2(1) (tb)] Electronic Signature Certificates Sections 35-39 of the Information and Technology Act deal with Electronic Signature Certificates. As per section 35 of the Act, certifying authority to issue electronic signature Certificates. Procedure for obtaining an electronic signature Certificate Following is the procedure for obtaining an electronic signature Certificate: Any person may make an application in the prescribed form to the Certifying Authority for the issue of an electronic signature Certificate in such form as may be prescribed by the Central Government. Every such application shall be accompanied by prescribed fees. Every such application shall be accompanied by a certification practice statement or where there is no such statement, a statement containing such particulars, as may be specified by regulations. On receipt of an application, the Certifying Authority may, after consideration of the certification practice statement or the other statement and after making such enquiries as it may deem fit, grant the electronic signature Certificate or for reasons to be recorded in writing, reject the application. It may be noted that no application shall be rejected unless the applicant has been given a reasonable opportunity of showing cause against the proposed rejection.