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testShTree.cpp
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testShTree.cpp
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/*
Testbed for empirical evaluation of KP-ABE schemes, according to Crampton, Pinto (CSF2014).
Code by: Alexandre Miranda Pinto
This file holds tests for the classes implemented in ShTree.cpp.
The tests are divided in 3 groups: the access policy, the secret sharing scheme, and static support functions for the work of these classes
*/
#include "utils.h"
#include "ShTree.h"
// Shamir Tree can implement OR and AND nodes. Therefore, it should understand
// all the expressions that BL canonical does, and translate those gates to
// appropriate threshold versions. Therefore, most of the tests of BL canonical
// should be inherited here, together with new tests specific for threshold
// gates and their problems
int testParseTreeFromExpression() {
int errors = 0;
ShTreeAccessPolicy testPolicy;
std::string base = "testParseExpression - [";
std::string expr = "";
shared_ptr<TreeNode> tree = testPolicy.parseTreeFromExpression(expr);
shared_ptr<TreeNode> emptyTree = TreeNode::makeTree(NodeContent::makeNILNode());
test_diagnosis(base + expr + "]", *tree == *emptyTree, errors);
expr = "a1"; // literals must be integers, not strings
try {
tree = testPolicy.parseTreeFromExpression(expr);
test_diagnosis(base + expr + "]", false, errors);
} catch (std::exception &e) {
test_diagnosis(base + expr + "]", true, errors);
}
expr = op_OR + "(1,2,"; // missing closing )
try {
tree = testPolicy.parseTreeFromExpression(expr);
test_diagnosis(base + expr + "]", false, errors);
} catch (std::exception &e) {
test_diagnosis(base + expr + "]", true, errors);
}
expr = op_AND + "(1,2,3),4"; // extra content beyond )
try {
tree = testPolicy.parseTreeFromExpression(expr);
test_diagnosis(base + expr + "]", false, errors);
} catch (std::exception &e) {
test_diagnosis(base + expr + "]", true, errors);
}
expr = op_THR + "(4,1,2,3)"; // threshold is greater than arity )
try {
tree = testPolicy.parseTreeFromExpression(expr);
test_diagnosis(base + expr + "]", false, errors);
} catch (std::exception &e) {
test_diagnosis(base + expr + "]", true, errors);
}
expr = op_THR + "(1)"; // threshold requires nodes beyond arity )
try {
tree = testPolicy.parseTreeFromExpression(expr);
test_diagnosis(base + expr + "]", false, errors);
} catch (std::exception &e) {
test_diagnosis(base + expr + "]", true, errors);
}
// valid expressions:
expr = "1";
shared_ptr<NodeContent> leafNode = NodeContent::makeLeafNode(1);
shared_ptr<TreeNode> verifTree = TreeNode::makeTree(leafNode);
try {
tree = testPolicy.parseTreeFromExpression(expr);
test_diagnosis(base + expr + "]", *tree == *verifTree, errors);
} catch (std::exception &e) {
test_diagnosis(base + expr + "]", false, errors);
}
expr = op_OR + "(1)";
shared_ptr<NodeContent> orNode = NodeContent::makeThreshNode(1,1);
leafNode = NodeContent::makeLeafNode(1);
verifTree = TreeNode::makeTree(orNode);
verifTree->appendChild(leafNode);
try {
tree = testPolicy.parseTreeFromExpression(expr);
test_diagnosis(base + expr + "]", *tree == *verifTree, errors);
} catch (std::exception &e) {
test_diagnosis(base + expr + "]", false, errors);
}
expr = op_OR + "(1,2,3)";
orNode = NodeContent::makeThreshNode(3,1);
shared_ptr<NodeContent> leaf1 = NodeContent::makeLeafNode(1);
shared_ptr<NodeContent> leaf2 = NodeContent::makeLeafNode(2);
shared_ptr<NodeContent> leaf3 = NodeContent::makeLeafNode(3);
verifTree = TreeNode::makeTree(orNode);
verifTree->appendChild(leaf1);
verifTree->appendChild(leaf2);
verifTree->appendChild(leaf3);
try {
tree = testPolicy.parseTreeFromExpression(expr);
test_diagnosis(base + expr + "]", (*verifTree == *tree), errors);
} catch (std::exception &e) {
test_diagnosis(base + expr + "]", false, errors);
}
expr = op_OR + "(1," + op_AND + "(2,3))";
orNode = NodeContent::makeThreshNode(2,1);
shared_ptr<NodeContent> andNode = NodeContent::makeThreshNode(2,2);
leaf1 = NodeContent::makeLeafNode(1);
leaf2 = NodeContent::makeLeafNode(2);
leaf3 = NodeContent::makeLeafNode(3);
verifTree = TreeNode::makeTree(orNode);
verifTree->appendChild(leaf1);
verifTree->appendChild(andNode);
shared_ptr<TreeNode> subTree = verifTree->getChild(1);
subTree->appendChild(leaf2);
subTree->appendChild(leaf3);
try {
tree = testPolicy.parseTreeFromExpression(expr);
test_diagnosis(base + expr + "]", (*verifTree == *tree), errors);
} catch (std::exception &e) {
test_diagnosis(base + expr + "]", false, errors);
}
expr = op_OR + "(1, " + op_OR + "(2, " + op_THR + "(2,1,2,3)), 4, " + op_AND + "(1,2))";
shared_ptr<NodeContent> rootNode = NodeContent::makeThreshNode(4,1);
orNode = NodeContent::makeThreshNode(2,1);
shared_ptr<NodeContent> thrNode = NodeContent::makeThreshNode(3,2);
andNode = NodeContent::makeThreshNode(2,2);
shared_ptr<NodeContent> baseleaf1 = NodeContent::makeLeafNode(1);
shared_ptr<NodeContent> baseleaf2 = NodeContent::makeLeafNode(2);
shared_ptr<NodeContent> baseleaf4 = NodeContent::makeLeafNode(4);
shared_ptr<NodeContent> thrleaf1 = NodeContent::makeLeafNode(1);
shared_ptr<NodeContent> thrleaf2 = NodeContent::makeLeafNode(2);
shared_ptr<NodeContent> thrleaf3 = NodeContent::makeLeafNode(3);
shared_ptr<NodeContent> andleaf1 = NodeContent::makeLeafNode(1);
shared_ptr<NodeContent> andleaf2 = NodeContent::makeLeafNode(2);
verifTree = TreeNode::makeTree(rootNode);
shared_ptr<TreeNode> pTree2 = TreeNode::makeTree(orNode);
shared_ptr<TreeNode> pTree4 = TreeNode::makeTree(andNode);
shared_ptr<TreeNode> pTree22 = TreeNode::makeTree(thrNode);
pTree22->appendChild(thrleaf1);
pTree22->appendChild(thrleaf2);
pTree22->appendChild(thrleaf3);
pTree2->appendChild(baseleaf2);
pTree2->appendTree(pTree22);
pTree4->appendChild(andleaf1);
pTree4->appendChild(andleaf2);
verifTree->appendChild(baseleaf1);
verifTree->appendTree(pTree2);
verifTree->appendChild(baseleaf4);
verifTree->appendTree(pTree4);
try {
tree = testPolicy.parseTreeFromExpression(expr);
test_diagnosis(base + expr + "]", *verifTree == *tree, errors);
} catch (std::exception &e) {
test_diagnosis(base + expr + "]", false, errors);
}
DEBUG("verification tree: " << verifTree->to_string());
DEBUG("real tree: " << tree->to_string());
return errors;
}
// this test tries several simple trees with different sets of shares. The argument of a share is its participant, identified by a simple integer.
// but a share has an implicit ID, defined by the policy that supports its issue. SatisfyNode verifies that the right shares are present, according to a policy.
// testEvaluate then has more complex policies
int testSatisfyNodeDetail(shared_ptr<TreeNode> policy, vector<ShareTuple> shares, vector<ShareTuple> verifWitnesses, std::string text, int i) {
ENHDEBUG("Satisfy Node Detail");
debugVectorObj("Shares: ", shares);
debugVectorObj("Verification: " , verifWitnesses);
ENHDEBUG("Policy Tree: " << policy->to_string());
bool b;
bool verif_b;
int errors = 0;
vector<ShareTuple> witnessVector;
b = ShTreeAccessPolicy::satisfyNode(policy, shares, witnessVector);
ENHDEBUG("SatisfyNode returned: " << b);
stringstream ss("");
ss << "testSatisfyNode - [" << text << "]: " << i;
if (verifWitnesses.empty()) {
DEBUG("verif_b is false");
verif_b = false;
} else {
DEBUG("verif_b is true");
verif_b = true;
}
debugVectorObj("real Witness vector", witnessVector);
debugVectorObj("verification Witness vector", verifWitnesses);
test_diagnosis(ss.str(), b == verif_b, errors);
test_diagnosis(ss.str() + " - Witness vector", witnessVector == verifWitnesses, errors);
return errors;
}
int testSatisfyNode() {
int errors = 0;
shared_ptr<NodeContent> nilNode = NodeContent::makeNILNode();
shared_ptr<NodeContent> orNode = NodeContent::makeThreshNode(4,1);
shared_ptr<NodeContent> andNode = NodeContent::makeThreshNode(4,4);
shared_ptr<NodeContent> thrNode = NodeContent::makeThreshNode(4,3);
shared_ptr<NodeContent> orleaf1 = NodeContent::makeLeafNode(1);
shared_ptr<NodeContent> orleaf2 = NodeContent::makeLeafNode(2);
shared_ptr<NodeContent> orleaf3 = NodeContent::makeLeafNode(3);
shared_ptr<NodeContent> orleaf4 = NodeContent::makeLeafNode(4);
shared_ptr<NodeContent> andleaf1 = NodeContent::makeLeafNode(1);
shared_ptr<NodeContent> andleaf2 = NodeContent::makeLeafNode(2);
shared_ptr<NodeContent> andleaf3 = NodeContent::makeLeafNode(3);
shared_ptr<NodeContent> andleaf4 = NodeContent::makeLeafNode(4);
shared_ptr<NodeContent> thrleaf1 = NodeContent::makeLeafNode(1);
shared_ptr<NodeContent> thrleaf2 = NodeContent::makeLeafNode(2);
shared_ptr<NodeContent> thrleaf3 = NodeContent::makeLeafNode(3);
shared_ptr<NodeContent> thrleaf4 = NodeContent::makeLeafNode(4);
std::shared_ptr<TreeNode> nilTree = TreeNode::makeTree(nilNode);
std::shared_ptr<TreeNode> orTree = TreeNode::makeTree(orNode);
std::shared_ptr<TreeNode> andTree = TreeNode::makeTree(andNode);
std::shared_ptr<TreeNode> thrTree = TreeNode::makeTree(thrNode);
orTree->appendChild(orleaf1);
orTree->appendChild(orleaf2);
orTree->appendChild(orleaf3);
orTree->appendChild(orleaf4);
andTree->appendChild(andleaf3);
andTree->appendChild(andleaf4);
andTree->appendChild(andleaf1);
andTree->appendChild(andleaf2);
thrTree->appendChild(thrleaf2);
thrTree->appendChild(thrleaf4);
thrTree->appendChild(thrleaf1);
thrTree->appendChild(thrleaf3);
// share sets to use: {1}, {1,2}, {1,2,3}, {1,2,3,4}
// respective witnesses:
// OR: {1}, {1}, {1}, {1}
// AND: {}, {}, {}, {3,4,1,2}
// THR: {}, {}, {4,1,3}, {2,4,1}
// Leaf Node labels: "<the Id of the parent> := <the participant>"
ShareTuple o1(1, 0, "0:0:=1");
ShareTuple o2(2, 0, "0:1:=2");
ShareTuple o3(3, 0, "0:2:=3");
ShareTuple o4(4, 0, "0:3:=4");
ShareTuple a3(3,0,"0:0:=3");
ShareTuple a4(4,0,"0:1:=4");
ShareTuple a1(1,0,"0:2:=1");
ShareTuple a2(2,0,"0:3:=2");
ShareTuple t2(2,0,"0:0:=2");
ShareTuple t4(4,0,"0:1:=4");
ShareTuple t1(1,0,"0:2:=1");
ShareTuple t3(3,0,"0:3:=3");
vector<ShareTuple> orSet;
vector<ShareTuple> andSet;
vector<ShareTuple> thrSet;
orSet.push_back(o1);
orSet.push_back(o2);
orSet.push_back(o3);
orSet.push_back(o4);
andSet.push_back(a1);
andSet.push_back(a2);
andSet.push_back(a3);
andSet.push_back(a4);
thrSet.push_back(t1);
thrSet.push_back(t2);
thrSet.push_back(t3);
thrSet.push_back(t4);
vector<ShareTuple> witnessVector;
vector<ShareTuple> verifSet;
vector<ShareTuple> shareList;
// NIL TREE
bool b;
b = ShTreeAccessPolicy::satisfyNode(nilTree, orSet, witnessVector);
test_diagnosis("testSatisfyNode - [nilTree] [orSet]", !b, errors);
test_diagnosis("testSatisfyNode - [nilTree] [orSet] - witness vector", witnessVector.empty(), errors);
witnessVector.clear();
b = ShTreeAccessPolicy::satisfyNode(nilTree, andSet, witnessVector);
test_diagnosis("testSatisfyNode - [nilTree] [andSet]", !b, errors);
test_diagnosis("testSatisfyNode - [nilTree] [andSet] - witness vector", witnessVector.empty(), errors);
witnessVector.clear();
b = ShTreeAccessPolicy::satisfyNode(nilTree, thrSet, witnessVector);
test_diagnosis("testSatisfyNode - [nilTree] [thrSet]", !b, errors);
test_diagnosis("testSatisfyNode - [nilTree] [thrSet] - witness vector", witnessVector.empty(), errors);
witnessVector.clear();
// OR TREE
verifSet.clear();
verifSet.push_back(orSet[0]);
for (unsigned int i = 0; i < orSet.size(); i++) {
shareList.clear();
for (unsigned int j = 0; j <= i; j++) {
shareList.push_back(orSet[j]);
}
ENHDEBUG("Calling detail");
debugVectorObj("shareList", shareList);
errors += testSatisfyNodeDetail(orTree, shareList, verifSet, "orTree", i);
}
// AND TREE
verifSet.clear();
for (unsigned int i = 0; i < andSet.size(); i++) {
shareList.clear();
for (unsigned int j = 0; j <= i; j++) {
shareList.push_back(andSet[j]);
}
if (i == andSet.size() - 1) {
verifSet.push_back(a3);
verifSet.push_back(a4);
verifSet.push_back(a1);
verifSet.push_back(a2);
}
errors += testSatisfyNodeDetail(andTree, shareList, verifSet, "andTree", i);
}
// THR TREE
vector< vector<ShareTuple> > witnessList;
verifSet.clear();
vector<ShareTuple> failVerifSet;
vector<ShareTuple> passVerifSet1;
vector<ShareTuple> passVerifSet2;
witnessList.push_back(failVerifSet); // adding empty vectors for the first 2 cases
witnessList.push_back(failVerifSet); // adding empty vectors for the first 2 cases
passVerifSet1.push_back(t2);
passVerifSet1.push_back(t1);
passVerifSet1.push_back(t3);
witnessList.push_back(passVerifSet1);
passVerifSet2.push_back(t2);
passVerifSet2.push_back(t4);
passVerifSet2.push_back(t1);
witnessList.push_back(passVerifSet2);
for (unsigned int i = 0; i < thrSet.size(); i++) {
shareList.clear();
for (unsigned int j = 0; j <= i; j++) {
shareList.push_back(thrSet[j]);
}
errors += testSatisfyNodeDetail(thrTree, shareList, witnessList[i], "thrTree", i);
}
return errors;
}
int testVectors(vector<vector<ShareTuple> > testRun, vector<vector<ShareTuple> > witnessRun, ShTreeAccessPolicy pol, std::string expr) {
int errors = 0;
ENHDEBUG("===============");
ENHOUT("Testing vectors");
vector<ShareTuple> witnessVector;
// for (unsigned int i = 0; i < testRun.size(); i++) {
for (unsigned int i = 1; i < 2; i++) {
witnessVector.clear();
bool b = pol.evaluate(testRun[i], witnessVector);
DEBUG("Returned from evaluate: " << b);
debugVectorObj("---> witness list: ", witnessRun[i]);
debugVectorObj("---> real witnesses: ", witnessVector);
bool verif_b;
stringstream ss("");
ss << "testEvaluate [" << expr << "]: " << i;
if (witnessRun[i].empty()) {
verif_b = false;
DEBUG("Witness vector is empty. Target: " << verif_b);
} else {
verif_b = true;
DEBUG("Witness vector has elements. Target: " << verif_b);
}
test_diagnosis(ss.str(), b == verif_b, errors);
test_diagnosis(ss.str() + " - Witness vector", witnessVector == witnessRun[i], errors);
}
return errors;
}
int testExpr1() {
int errors = 0;
std::string expr = "";
ShTreeAccessPolicy pol(expr, 0);
ShareTuple s11(1,0,"1:1");
ShareTuple s12(2,0,"2:2");
ShareTuple s13(3,0,"3:3");
ShareTuple s14(4,0,"4:4");
ShareTuple s15(5,0,"5:5");
vector<ShareTuple> shareList;
shareList.push_back(s11);
shareList.push_back(s12);
shareList.push_back(s13);
shareList.push_back(s14);
shareList.push_back(s15);
vector<ShareTuple> emptyList;
vector<ShareTuple> currentList;
vector< vector<ShareTuple> > testRun;
vector< vector<ShareTuple> > witnessRun;
for (unsigned int i = 0; i < 5; i++) {
currentList.push_back(shareList[i]);
testRun.push_back(currentList);
witnessRun.push_back(emptyList);
}
errors += testVectors(testRun, witnessRun, pol, expr);
return errors;
}
int testExpr2() {
int errors = 0;
std::string expr = "4";
ShTreeAccessPolicy pol(expr, 0);
ShareTuple s11(1,0,"0:=1");
ShareTuple s12(2,0,"0:=2");
ShareTuple s13(3,0,"0:=3");
ShareTuple s14(4,0,"0:=4");
ShareTuple s15(5,0,"0:=5");
vector<ShareTuple> shareList;
shareList.push_back(s11);
shareList.push_back(s12);
shareList.push_back(s13);
shareList.push_back(s14);
shareList.push_back(s15);
vector<ShareTuple> witnessList;
vector<ShareTuple> currentList;
vector< vector<ShareTuple> > testRun;
vector< vector<ShareTuple> > witnessRun;
for (unsigned int i = 0; i < 5; i++) {
currentList.push_back(shareList[i]);
testRun.push_back(currentList);
if (i == 3) {
witnessList.push_back(shareList[i]);
}
witnessRun.push_back(witnessList);
}
errors += testVectors(testRun, witnessRun, pol, expr);
return errors;
}
int testExpr3() {
int errors = 0;
std::string expr = op_THR + "(2, 1, " + op_THR + "(1, 2, " + op_THR + "(2,5,2,3,4)), 4, " + op_THR + "(2,6,1))";
// OUT("Expr3: " << expr);
ShTreeAccessPolicy pol(expr, 6);
ShareTuple s11(1,0,"0:0:=1");
ShareTuple s22(2,0,"0:1:0:=2");
ShareTuple s35(5,0,"0:1:1:0:=5");
ShareTuple s32(2,0,"0:1:1:1:=2");
ShareTuple s33(3,0,"0:1:1:2:=3");
ShareTuple s34(4,0,"0:1:1:3:=4");
ShareTuple s44(4,0,"0:2:=4");
ShareTuple s56(6,0,"0:3:0:=6");
ShareTuple s51(1,0,"0:3:1:=1");
vector<ShareTuple> sl;
sl.push_back(s11);
sl.push_back(s22);
sl.push_back(s35);
sl.push_back(s32);
sl.push_back(s33);
sl.push_back(s34);
sl.push_back(s44);
sl.push_back(s56);
sl.push_back(s51);
vector<ShareTuple> run1;
run1.push_back(sl[0]);
run1.push_back(sl[6]);
vector<ShareTuple> run2;
run2.push_back(sl[7]);
run2.push_back(sl[8]);
run2.push_back(sl[1]);
run2.push_back(sl[4]);
run2.push_back(sl[5]);
vector<ShareTuple> run3;
run3.push_back(sl[7]);
run3.push_back(sl[8]);
run3.push_back(sl[1]);
run3.push_back(sl[2]);
run3.push_back(sl[4]);
vector<ShareTuple> run4;
run4.push_back(sl[5]);
run4.push_back(sl[6]);
run4.push_back(sl[1]);
vector<ShareTuple> run5;
run5.push_back(sl[6]);
run5.push_back(sl[8]);
run5.push_back(sl[3]);
vector< vector<ShareTuple> > testRun;
testRun.push_back(run1);
testRun.push_back(run2);
testRun.push_back(run3);
testRun.push_back(run4);
testRun.push_back(run5);
vector< vector<ShareTuple> > witnessRun;
vector<ShareTuple> witnessList;
witnessList.push_back(sl[0]);
witnessList.push_back(sl[6]);
witnessRun.push_back(witnessList);
witnessList.clear();
witnessList.push_back(sl[1]);
witnessList.push_back(sl[7]);
witnessList.push_back(sl[8]);
witnessRun.push_back(witnessList);
witnessList.clear();
witnessList.push_back(sl[1]);
witnessList.push_back(sl[7]);
witnessList.push_back(sl[8]);
witnessRun.push_back(witnessList);
witnessList.clear();
witnessList.push_back(sl[1]);
witnessList.push_back(sl[6]);
witnessRun.push_back(witnessList);
witnessList.clear();
witnessRun.push_back(witnessList);
witnessList.clear();
errors += testVectors(testRun, witnessRun, pol, expr);
return errors;
}
int testEvaluate() {
int errors = 0;
// errors += testExpr1(); // nil tree
// errors += testExpr2(); // leaf tree
errors += testExpr3(); // multi-level tree
return errors;
}
int testGetNumShares() {
int errors = 0;
std::string base = "TestGetNumShares: ";
std::string expr0 = "1";
ShTreeAccessPolicy pol0(expr0, 3);
test_diagnosis(base + expr0, pol0.getNumShares() == 1, errors);
std::string expr1 = op_OR + "(1,2,3)";
ShTreeAccessPolicy pol1(expr1, 3);
test_diagnosis(base + expr1, pol1.getNumShares() == 3, errors);
std::string expr2 = op_OR + "(" + op_AND + "(1,2)," + op_AND + "(3,4))";
ShTreeAccessPolicy pol2(expr2, 4);
test_diagnosis(base + expr2, pol2.getNumShares() == 4, errors);
std::string expr3 = op_OR + "(" + op_AND + "(3,4,5),7," + op_AND + "(1,2)," + op_AND + "(4,1,6,5))";
ShTreeAccessPolicy pol3(expr3, 7);
test_diagnosis(base + expr3, pol3.getNumShares() == 10, errors);
std::string expr4 = op_OR + "(1, " + op_OR + "(2, " + op_THR + "(2,1,2,3)), 4, " + op_AND + "(1,2))";
ShTreeAccessPolicy pol4(expr4, 4);
test_diagnosis(base + expr4, pol4.getNumShares() == 8, errors);
return errors;
}
int testObtainCoveredFrags() {
int errors = 0;
std::string base = "testObtainCoveredFrags: ";
vector<int> atts;
atts.push_back(7);
atts.push_back(8);
atts.push_back(2);
atts.push_back(4);
atts.push_back(5);
atts.push_back(3);
vector<int> attFragIndices;
vector<int> keyFragIndices;
vector<std::string> coveredShareIDs;
std::string expr = op_OR + "(1, " + op_OR + "(2, " + op_THR + "(2,1,2,3)), 4, " + op_AND + "(1,2))";
shared_ptr<ShTreeAccessPolicy> policy = make_shared<ShTreeAccessPolicy>(expr, 5);
vector<std::string> verifShareIDs;
verifShareIDs.push_back("0:1:0:=2");
verifShareIDs.push_back("0:1:1:1:=2");
verifShareIDs.push_back("0:1:1:2:=3");
verifShareIDs.push_back("0:2:=4");
verifShareIDs.push_back("0:3:1:=2");
vector<int> verifKeyFragIDs;
verifKeyFragIDs.push_back(1);
verifKeyFragIDs.push_back(3);
verifKeyFragIDs.push_back(4);
verifKeyFragIDs.push_back(5);
verifKeyFragIDs.push_back(7);
vector<int> verifAttFragIDs;
verifAttFragIDs.push_back(2);
verifAttFragIDs.push_back(2);
verifAttFragIDs.push_back(5);
verifAttFragIDs.push_back(3);
verifAttFragIDs.push_back(2);
policy->obtainCoveredFrags(atts, attFragIndices, keyFragIndices, coveredShareIDs);
debugVector("coveredShareIDs: ", coveredShareIDs);
debugVector("verifShareIDs: ", verifShareIDs);
test_diagnosis(base + "number of covered IDs", coveredShareIDs.size() == verifShareIDs.size(), errors);
for (unsigned int i = 0; i < coveredShareIDs.size(); i++) {
test_diagnosis(base + "coveredID " + convertIntToStr(i), coveredShareIDs[i] == verifShareIDs[i], errors);
}
test_diagnosis(base + "number of keyFragIndices", keyFragIndices.size() == verifKeyFragIDs.size(), errors);
for (unsigned int i = 0; i < keyFragIndices.size(); i++) {
test_diagnosis(base + "keyFragIndex " + convertIntToStr(i), keyFragIndices[i] == verifKeyFragIDs[i], errors);
}
test_diagnosis(base + "number of attFragIndices", attFragIndices.size() == verifAttFragIDs.size(), errors);
for (unsigned int i = 0; i < attFragIndices.size(); i++) {
test_diagnosis(base + "attFragIndex " + convertIntToStr(i), attFragIndices[i] == verifAttFragIDs[i], errors);
}
return errors;
}
int testGetSharesForParticipants() {
int errors = 0;
ENHDEBUG("Creating instances");
// std::string expr = op_THR + "(1, 1, " + op_THR + "(3,2,3,4), " + op_THR + "(2,2,5, " + op_THR + "(1,4,5)))";
// shared_ptr<ShTreeAccessPolicy> policy = make_shared<ShTreeAccessPolicy>(expr, 5);
// ShTreeSS testScheme(policy, pfc.order(), pfc);
ENHDEBUG("Creating shares");
ShareTuple s1a(1, 0, "1a");
ShareTuple s1b(1, 0, "1b");
ShareTuple s2a(2, 0, "2a");
ShareTuple s3a(3, 0, "3a");
ShareTuple s3b(3, 0, "3b");
ShareTuple s3c(3, 0, "3c");
ShareTuple s4a(4, 0, "4a");
ShareTuple s5a(5, 0, "5a");
vector<ShareTuple> shares;
shares.push_back(s1a);
shares.push_back(s1b);
shares.push_back(s2a);
shares.push_back(s3a);
shares.push_back(s3b);
shares.push_back(s3c);
shares.push_back(s4a);
shares.push_back(s5a);
vector<int> parts313;
vector<int> parts276;
vector<int> parts45;
parts313.push_back(3);
parts313.push_back(1);
parts313.push_back(3);
parts276.push_back(2);
parts276.push_back(7);
parts276.push_back(6);
parts45.push_back(4);
parts45.push_back(5);
vector<ShareTuple> verif313;
vector<ShareTuple> verif276;
vector<ShareTuple> verif45;
verif313.push_back(s1a);
verif313.push_back(s1b);
verif313.push_back(s3a);
verif313.push_back(s3b);
verif313.push_back(s3c);
verif276.push_back(s2a);
verif45.push_back(s4a);
verif45.push_back(s5a);
std::string base = "testGetSharesForParticipants - ";
ENHDEBUG("Calling diagnosis");
DEBUG("call 1");
vector<ShareTuple> returnedShares = SecretSharing::getSharesForParticipants(parts313, shares);
test_diagnosis(base + "[313]", returnedShares == verif313, errors);
DEBUG("call 2");
returnedShares = SecretSharing::getSharesForParticipants(parts276, shares);
test_diagnosis(base + "[276]", returnedShares == verif276, errors);
DEBUG("call 3");
returnedShares = SecretSharing::getSharesForParticipants(parts45, shares);
test_diagnosis(base + "[45]", returnedShares == verif45, errors);
ENHDEBUG("Finished diagnosis");
return errors;
}
int testReconFromShares(vector<int> party, std::string message,
ShTreeSS scheme, vector<ShareTuple> shares, bool goodParty,
unsigned int expectedNumberShares, Big orig_secret) {
int errors = 0;
ENHDEBUG("testReconFromShares");
debugVector("Party", party);
debugVectorObj("Shares", shares);
vector<ShareTuple> partShares;
partShares = SecretSharing::getSharesForParticipants(party, shares);
debugVectorObj("Participant Shares", partShares);
vector<ShareTuple> witnessShares;
bool success = scheme.evaluate(partShares, witnessShares);
test_diagnosis(message + "evaluation", success == goodParty, errors);
debugVectorObj("Witness Shares", witnessShares);
test_diagnosis(message + "number of shares", witnessShares.size() == expectedNumberShares, errors);
DEBUG("number of witness shares: " << witnessShares.size());
DEBUG("expected number of shares: " << expectedNumberShares);
ENHDEBUG("Calling reconstruction");
Big reced_secret = scheme.reconstruct(witnessShares);
ENHDEBUG("Finished reconstruction");
if (goodParty) {
test_diagnosis(message + "reconstruction", reced_secret == orig_secret, errors);
} else {
test_diagnosis(message + "reconstruction", reced_secret != orig_secret, errors);
}
return errors;
}
int testSmallDistributeAndReconstruct(PFC &pfc){
int errors = 0;
Big s = 7;
Big order = 11;
std::string expr = op_THR + "(3, 1,2,3,4,5)";
shared_ptr<ShTreeAccessPolicy> policy = make_shared<ShTreeAccessPolicy>(expr, 5);
ShTreeSS testScheme(policy, order, pfc);
std::string base = "testSmallDistributeAndReconstruct ";
vector<int> party;
party.push_back(3);
party.push_back(5);
party.push_back(1);
vector<Big> randomness;
randomness.push_back(3);
randomness.push_back(4);
REPORT("Calling distribute_determ");
vector<ShareTuple> shares = testScheme.distribute_determ(s, randomness);
debugVectorObj("returned shares", shares);
test_diagnosis(base + "number of shares:", shares.size() == policy->getNumShares(), errors);
errors += testReconFromShares(party, base + ": ", testScheme, shares, true, 3, s);
return errors;
}
int testDistributeAndReconstruct(PFC &pfc){
int errors = 0;
REPORT("testDistribute and Reconstruct");
int niter = 5;
DEBUG("Initting s");
Big s;
DEBUG("Initting old_s");
Big old_s=0;
DEBUG("Obtaining order");
Big order = pfc.order();
DEBUG("Creating instances");
std::string expr = op_THR + "(1, 1, " + op_THR + "(3,2,3,4), " + op_THR + "(2,2,1, " + op_THR + "(1,4,5)))";
shared_ptr<ShTreeAccessPolicy> policy = make_shared<ShTreeAccessPolicy>(expr, 5);
ShTreeSS testScheme(policy, pfc.order(), pfc);
std::string base = "testDistributeAndReconstruct ";
vector<int> party1; // should succeed
vector<int> party234; // should succeed
vector<int> party25; // should succeed
vector<int> party42; // should succeed
vector<int> badparty23; // should fail
vector<int> badparty53; // should fail
party1.push_back(1);
party234.push_back(2);
party234.push_back(3);
party234.push_back(4);
party25.push_back(2);
party25.push_back(5);
party42.push_back(4);
party42.push_back(2);
badparty23.push_back(2);
badparty23.push_back(3);
badparty53.push_back(5);
badparty53.push_back(3);
old_s = 0;
for (int j = 0; j < niter; j++){
OUT(base + "Iteration: " << j);
pfc.random(s);
s = s % order;
DEBUG("s: " << s << "\t old s: " << old_s);
guard("s should be random, and different from the last value or 0", s != old_s); // the probability that s is 0 or the old value should be negligible
REPORT("Calling distribute_random");
vector<ShareTuple> shares = testScheme.distribute_random(s);
test_diagnosis(base + "number of shares:", shares.size() == policy->getNumShares(), errors);
errors += testReconFromShares(party1, base + "[1]: ", testScheme, shares, true, 1, s);
errors += testReconFromShares(party234, base + "[234]: ", testScheme, shares, true, 3, s);
errors += testReconFromShares(party25, base + "[25]: ", testScheme, shares, true, 2, s);
errors += testReconFromShares(party42, base + "[42]: ", testScheme, shares, true, 2, s);
errors += testReconFromShares(badparty23, base + "[23]: ", testScheme, shares, false, 0, s);
errors += testReconFromShares(badparty53, base + "[53]: ", testScheme, shares, false, 0, s);
old_s = s;
}
return errors;
}
int testUpdateSet(){
int errors = 0;
std::map<std::string, vector<ShareTuple> > map;
std::string prefix1 = "prefix1";
std::string prefix2 = "prefix2";
ShareTuple s1(1,0,"a");
ShareTuple s2(2,0,"b");
ShareTuple s3(3,0,"c");
vector<ShareTuple> vec1;
vector<ShareTuple> vec2;
vec1.push_back(s1);
vec2.push_back(s2);
map[prefix1] = vec1;
map[prefix2] = vec2;
test_diagnosis("testUpdateSet - initial state size", map.size() == 2, errors);
test_diagnosis("testUpdateSet - initial state vec1 size", map.find(prefix1)->second.size() == 1, errors);
test_diagnosis("testUpdateSet - initial state vec2 size", map.find(prefix2)->second.size() == 1, errors);
ShTreeSS::updateSet(map, prefix2, s3);
test_diagnosis("testUpdateSet - after state size", map.size() == 2, errors);
test_diagnosis("testUpdateSet - initial state vec1 size", map.find(prefix1)->second.size() == 1, errors);
test_diagnosis("testUpdateSet - initial state vec2 size", map.find(prefix2)->second.size() == 2, errors);
std::map<std::string, vector<ShareTuple> >::iterator it;
it = map.find(prefix2);
test_diagnosis("testUpdateSet - vec2 contents 0", it->second[0] == s2, errors);
test_diagnosis("testUpdateSet - vec2 contents 1", it->second[1] == s3, errors);
return errors;
}
int testAddNewSet(){
int errors = 0;
std::map<std::string, vector<ShareTuple> > map;
std::string prefix1 = "prefix1";
std::string prefix2 = "prefix2";
ShareTuple s1(1,0,"a");
ShareTuple s2(2,0,"b");
vector<ShareTuple> vec1;
vector<ShareTuple> vec2;
vec1.push_back(s1);
map[prefix1] = vec1;
test_diagnosis("testAddNewSet - initial state size", map.size() == 1, errors);
test_diagnosis("testAddNewSet - initial state vec1 size", map.find(prefix1)->second.size() == 1, errors);
ShTreeSS::addNewSet(map, prefix2, s2);
test_diagnosis("testAddNewSet - after state size", map.size() == 2, errors);
test_diagnosis("testAddNewSet - initial state vec1 size", map.find(prefix1)->second.size() == 1, errors);
test_diagnosis("testAddNewSet - initial state vec2 size", map.find(prefix2)->second.size() == 1, errors);
std::map<std::string, vector<ShareTuple> >::iterator it;
it = map.find(prefix2);
test_diagnosis("testUpdateSet - vec2 contents 0", it->second[0] == s2, errors);
return errors;
}
int testPutShareInSet(){
int errors = 0;