1 files changed, 3 insertions, 8 deletions
diff --git a/src/lib/math/numbertheory/mp_numth.cpp b/src/lib/math/numbertheory/mp_numth.cpp
index 5ad72cd47..eef641996 100644
--- a/src/lib/math/numbertheory/mp_numth.cpp
+++ b/src/lib/math/numbertheory/mp_numth.cpp
@@ -18,14 +18,9 @@ namespace Botan {
 */
 BigInt square(const BigInt& x)
    {
-   const size_t x_sw = x.sig_words();
-
-   BigInt z(BigInt::Positive, round_up(2*x_sw, 16));
-   secure_vector<word> workspace(z.size());
-
-   bigint_sqr(z.mutable_data(), z.size(),
-              x.data(), x.size(), x_sw,
-              workspace.data(), workspace.size());
+   BigInt z = x;
+   secure_vector<word> ws;
+   z.square(ws);
    return z;
    }