WSSecurityCert KeyInfo tag wrapped around SecurityTokenReference

[somdeepjana]

WSSecurityCert <wsse:SecurityTokenReference> tag should be wrapped inside <KeyInfo> tag.

reference: https://docs.oasis-open.org/wss/v1.1/wss-v1.1-spec-pr-x509TokenProfile-01.htm

<wsse:Security>
  <ds:Signature>
  
    <ds:SignedInfo>...</ds:SignedInfo>
    <ds:SignatureValue>...</ds:SignatureValue>

    <ds:KeyInfo Id="keyinfo"> <---------------------------- This tag was missing

       <wsse:SecurityTokenReference>...</wsse:SecurityTokenReference>
    </ds:KeyInfo>

  </ds:Signature>
</wsse:Security>