bugfix FieldElem::SetHex

field.h

@@ -373,7 +373,7 @@ public:
                                      0, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0,0};
         for (int i=0; i<32; i++) {
             if (str.length() > i*2)
-                tmp[i] = (cvt[(unsigned char)str[2*i]] << 4) + cvt[(unsigned char)str[2*i+1]];
+                tmp[32 - str.length()/2 + i] = (cvt[(unsigned char)str[2*i]] << 4) + cvt[(unsigned char)str[2*i+1]];
         }
         SetBytes(tmp);
     }

tests.cpp

@@ -62,7 +62,7 @@ void test_point_times_order(const GroupElemJac &point) {
 
 void test_run_point_times_order() {
     Context ctx;
-    FieldElem x; x.SetHex("0000000000000000000000000000000000000000000000000000000000000002");
+    FieldElem x; x.SetHex("02");
     for (int i=0; i<500; i++) {
         GroupElemJac j; j.SetCompressed(x, true);
         test_point_times_order(j);