Add python bindings & binary emulation test for riscv 64/32

src/examples/python/ctf-writeups/custom-crackmes/riscv32-hash/crackme_hash.c

@@ -0,0 +1,33 @@
+
+#include <stdio.h>
+#include <stdlib.h>
+
+char *serial = "\x31\x3e\x3d\x26\x31";
+
+int check(char *ptr)
+{
+  int i;
+  int hash = 0xABCD;
+
+  for (i = 0; ptr[i]; i++)
+    hash += ptr[i] ^ serial[i % 5];
+
+  return hash;
+}
+
+int main(int ac, char **av)
+{
+  int ret;
+
+  if (ac != 2)
+    return -1;
+
+  ret = check(av[1]);
+  if (ret == 0xad6d)
+    printf("Win\n");
+  else
+    printf("fail\n");
+
+  return 0;
+}
+