Digital signature with Nodejs

Hi, I want to sign and verify xml document with Node Js use some test public and private key. signature format: XAdES-BES (XML Advanced Electronic Signatures), with a structure compliant with the public specifications ETSI TS 101 903 version 1.4.1, as provided for in the appropriate legislation starting from 1 September 2010. The only method accepted for this type of signature is the “enveloped” method. In addition the XAdES signature must have the Reference element with URI=“” or with URI=“#iddoc” where iddoc is the identity code of the document to be signed: the URI attribute cannot be omitted from the Reference elements. signature should guarantees the integrity of the information contained in the document the software used to place the signature must be capable of providing the “signing time” parameter, which shows the date and the time of the signature, and which assumes significance as the time [login to view URL] apposition of the time stamp is not instead necessary