diff options
| -rw-r--r-- | src/math/bigint/mp_karat.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/math/bigint/mp_karat.cpp b/src/math/bigint/mp_karat.cpp index a50e4ee0c..8ae346f1e 100644 --- a/src/math/bigint/mp_karat.cpp +++ b/src/math/bigint/mp_karat.cpp @@ -273,8 +273,12 @@ void bigint_mul(word z[], u32bit z_size, word workspace[], { bigint_comba_mul16(z, x, y); } - else if(x_sw < BOTAN_KARAT_MUL_THRESHOLD || y_sw < BOTAN_KARAT_MUL_THRESHOLD) + else if(x_sw < BOTAN_KARAT_MUL_THRESHOLD || + y_sw < BOTAN_KARAT_MUL_THRESHOLD || + !workspace) + { bigint_simple_mul(z, x, x_sw, y, y_sw); + } else { const u32bit N = karatsuba_size(z_size, x_size, x_sw, y_size, y_sw); @@ -315,7 +319,7 @@ void bigint_sqr(word z[], u32bit z_size, word workspace[], { bigint_comba_sqr16(z, x); } - else if(x_size < BOTAN_KARAT_SQR_THRESHOLD) + else if(x_size < BOTAN_KARAT_SQR_THRESHOLD || !workspace) { bigint_simple_sqr(z, x, x_sw); } |