Home
27 items | 1 visits
-
Signature timestamp
-
/**
* Modyfy PKCS#7 data by adding timestamp
*
* (at) param signedData
* (at) throws Exception
*/
private static CMSSignedData addTimestamp(CMSSignedData signedData) throws Exception {
Collection ss = signedData.getSignerInfos().getSigners();
SignerInformation si = (SignerInformation) ss.iterator().next();
TimeStampToken tok = getTimeStampToken(1);
ASN1InputStream asn1InputStream = new ASN1InputStream (tok.getEncoded());
DERObject tstDER = asn1InputStream.readObject();
DERSet ds = new DERSet(tstDER);
Attribute a = new Attribute(new DERObjectIdentifier("1.2.840.113549.1.9.16.2.14"), ds);
DEREncodableVector dv = new DEREncodableVector();
dv.add(a);
AttributeTable at = new AttributeTable(dv);
si = SignerInformation.replaceUnsignedAttributes(si, at);
ss.clear();
ss.add(si);
SignerInformationStore sis = new SignerInformationStore(ss);
signedData = CMSSignedData.replaceSigners(signedData, sis);
return signedData;
}
-
List Comments
(0)
List Info
Sponsored Links
Ads by Google