diff options
| -rw-r--r-- | src/lib/math/ec_gfp/curve_nistp.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/lib/math/ec_gfp/curve_nistp.cpp b/src/lib/math/ec_gfp/curve_nistp.cpp index bc86ed358..62d11d4a9 100644 --- a/src/lib/math/ec_gfp/curve_nistp.cpp +++ b/src/lib/math/ec_gfp/curve_nistp.cpp @@ -19,7 +19,8 @@ void normalize(const BigInt& p, BigInt& x, secure_vector<word>& ws, size_t bound const size_t p_words = p.sig_words(); // TODO: provide a high level function for this compare-and-sub operation - x.grow_to(p_words + 1); + if(x.size() < p_words + 1) + x.grow_to(p_words + 1); if(ws.size() < p_words + 1) ws.resize(p_words + 1); |