1 files changed, 24 insertions, 0 deletions
diff --git a/src/fuzzer/bn_sqr.cpp b/src/fuzzer/bn_sqr.cpp
new file mode 100644
index 000000000..f507c4a79
--- /dev/null
+++ b/src/fuzzer/bn_sqr.cpp
@@ -0,0 +1,24 @@
+/*
+* (C) 2015,2016 Jack Lloyd
+*
+* Botan is released under the Simplified BSD License (see license.txt)
+*/
+
+#include "fuzzers.h"
+
+#include <botan/bigint.h>
+#include <botan/numthry.h>
+
+void fuzz(const uint8_t in[], size_t len)
+   {
+   if(len > 8192/8)
+      return;
+
+   Botan::BigInt x = Botan::BigInt::decode(in, len);
+
+   Botan::BigInt x_sqr = square(x);
+   Botan::BigInt x_mul = x * x;
+
+   FUZZER_ASSERT_EQUAL(x_sqr, x_mul);
+   }
+