public String createChallangeNAClaims(String req, String claimDefs, int size) throws Exception {
ObjectMapper mapper = new ObjectMapper();
ArrayNode claimDefNodes = (ArrayNode) mapper.readTree(claimDefs);
req = req.replaceAll("\"", "");
byte[] reqElemBytes = Base64.decode(req);
Element reqElem = null;
ArrayList<IdentityClaimDefinition> icds = new ArrayList<IdentityClaimDefinition>();
for (int i = 0; i < size; i++) {
String onVal = claimDefNodes.get(i).getTextValue();
ObjectNode claimDefOn = (ObjectNode) mapper.readTree(onVal);
IdentityClaimDefinition idClaimDef = new IdentityClaimDefinition(claimDefOn);
icds.add(idClaimDef);
if (reqElem == null) {
Pairing pairing = idClaimDef.getParams().getPairing();
reqElem = pairing.getG1().newElement();
reqElem.setFromBytes(reqElemBytes);
// System.out.println(reqElem);
}
}
Pairing pairing = icds.get(0).getParams().getPairing();
Field gt = pairing.getGT();
Element sessionKey = gt.newRandomElement().getImmutable();
Element sessionKeyOrig = sessionKey.getImmutable();
// System.out.println("Key: " + sessionKey);
JsonNode rootNode = mapper.createObjectNode();
ObjectNode on = (ObjectNode) rootNode;
Encrypt encrypt = new Encrypt();
for (int i = 0; i < size; i++) {
IdentityClaimDefinition claimDef = icds.get(i);
Element share = null;
if (i < (size - 1)) {
share = gt.newRandomElement().getImmutable();
sessionKey = sessionKey.sub(share).getImmutable();
} else {
// Last one should be the remaining part of session key
share = sessionKey;
}
encrypt.init(claimDef.getParams());
// System.out.println("Part : " + i + " : " + share);
AECipherTextBlock ct = encrypt.doEncrypt(share, reqElem);
on.put(claimDef.getName(), ct.serializeJSON());
}
// System.out.println(sessionKeyOrig);
String sk = new String(Base64.encode(sessionKeyOrig.toBytes()));
sk = sk.replaceAll(" ", "");
on.put("SessionKey", sk);
return on.toString();
}
protected Element[] map(CipherParameters publicKey, String... ids) {
Pairing pairing =
PairingFactory.getPairing(((UHIBELW11PublicKeyParameters) publicKey).getParameters());
Element[] elements = new Element[ids.length];
for (int i = 0; i < elements.length; i++) {
byte[] id = ids[i].getBytes();
elements[i] = pairing.getZr().newElementFromHash(id, 0, id.length);
}
return elements;
}
private void initialize(CurveParameters cp) {
random = new Random(0);
// e = PairingFactory.getPairing(cp);
e = new TypeAPairing(random, cp);
// Groups G1 and G2 of prime order q
G1 = e.getG1();
G2 = e.getGT();
// Field Zq
Zq = e.getZr();
// Global system parameters: g \in G1, Z = e(g,g) \in G2
g = ((CurveField) G1).getGen().getImmutable();
// if(g.isZero()){
// System.out.println("g es 0!! :(");
// System.exit(-1);
// }
// g = G1.newRandomElement().getImmutable();
// System.out.println("g = " + ProxyMain.elementToString(g));
Z = e.pairing(g, g).getImmutable();
Z_ppp = Z.pow();
g_ppp = g.pow();
/*
System.out.println(G1.getClass());
System.out.println(G2.getClass());
System.out.println(Zq.getClass());
System.out.println(e.getClass());
System.out.println(g.getClass());
System.out.println(g.toBytes()[0]);
System.out.println(Z.getClass());*/
}
public PS06Parameters generateParameters() {
Element g = pairing.getG1().newRandomElement();
return new PS06Parameters(curveParams, g.getImmutable(), nU, nM);
}
/**
* @param request
* @param claimDefs Array of claim defs
* @return
* @throws Exception
*/
public String createChallangeNClaimsThreads(String requests, String claimDefs) throws Exception {
ObjectMapper mapper = new ObjectMapper();
// System.out.println(requests);
String[] split = requests.split(",");
ArrayNode claimDefNodes = (ArrayNode) mapper.readTree(claimDefs);
ArrayList<IdentityClaimDefinition> icds = new ArrayList<IdentityClaimDefinition>();
ArrayList<Element> reqs = new ArrayList<Element>();
for (int i = 0; i < split.length; i++) {
String onVal = claimDefNodes.get(i).getTextValue();
ObjectNode claimDefOn = (ObjectNode) mapper.readTree(onVal);
IdentityClaimDefinition idClaimDef = new IdentityClaimDefinition(claimDefOn);
icds.add(idClaimDef);
Pairing pairing = idClaimDef.getParams().getPairing();
// System.out.println(idClaimDef.serializeJSON());
String tmpReq = split[i].replaceAll("\"", "");
byte[] reqElemBytes = Base64.decode(tmpReq);
// System.out.println(reqElemBytes.length);
Element reqElem = pairing.getG1().newElement();
reqElem.setFromBytes(reqElemBytes);
// System.out.println(reqElem.getImmutable());
reqs.add(reqElem);
}
Pairing pairing = icds.get(0).getParams().getPairing();
Field gt = pairing.getGT();
Element sessionKey = gt.newRandomElement().getImmutable();
Element sessionKeyOrig = sessionKey.getImmutable();
// System.out.println("Key: " + sessionKey);
JsonNode rootNode = mapper.createObjectNode();
ObjectNode on = (ObjectNode) rootNode;
ArrayList<EncrypterThread> ets = new ArrayList<ServiceProvider.EncrypterThread>();
for (int i = 0; i < split.length; i++) {
IdentityClaimDefinition claimDef = icds.get(i);
Element share = null;
if (i < (split.length - 1)) {
share = gt.newRandomElement().getImmutable();
sessionKey = sessionKey.sub(share).getImmutable();
} else {
// Last one should be the remaining part of session key
share = sessionKey;
}
EncrypterThread t =
new EncrypterThread(claimDef.getName(), claimDef.getParams(), share, reqs.get(i), on);
t.start();
ets.add(t);
}
for (EncrypterThread t : ets) {
t.join();
}
String sk = new String(Base64.encode(sessionKeyOrig.toBytes()));
sk = sk.replaceAll(" ", "");
on.put("SessionKey", sk);
return on.toString();
}
public int getPairingPreProcessingLengthInBytes() {
return pairing.getG1().getLengthInBytes();
}
