Added public zkSNARK parameter generation utility.

src/zcash/GenerateParams.cpp

@@ -0,0 +1,21 @@
+#include "zcash/JoinSplit.hpp"
+
+#include <iostream>
+
+int main(int argc, char **argv)
+{
+    if(argc != 3) {
+        std::cerr << "Usage: " << argv[0] << " provingKeyFileName verificationKeyFileName" << std::endl;
+        return 1;
+    }
+
+    std::string pkFile = argv[1];
+    std::string vkFile = argv[2];
+
+    auto p = ZCJoinSplit::Generate();
+
+    p->saveProvingKey(pkFile);
+    p->saveVerifyingKey(vkFile);
+
+    return 0;
+}