diff options
Diffstat (limited to 'src/lib/block/idea_sse2')
| -rw-r--r-- | src/lib/block/idea_sse2/idea_sse2.cpp | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/lib/block/idea_sse2/idea_sse2.cpp b/src/lib/block/idea_sse2/idea_sse2.cpp index a2a54ac32..51b5e909b 100644 --- a/src/lib/block/idea_sse2/idea_sse2.cpp +++ b/src/lib/block/idea_sse2/idea_sse2.cpp @@ -7,6 +7,7 @@ #include <botan/idea_sse2.h> #include <botan/cpuid.h> +#include <botan/internal/ct_utils.h> #include <emmintrin.h> namespace Botan { @@ -130,6 +131,10 @@ void transpose_out(__m128i& B0, __m128i& B1, __m128i& B2, __m128i& B3) */ void idea_op_8(const byte in[64], byte out[64], const u16bit EK[52]) { + BOTAN_CONST_TIME_POISON(in, 64); + BOTAN_CONST_TIME_POISON(out, 64); + BOTAN_CONST_TIME_POISON(EK, 52*2); + const __m128i* in_mm = reinterpret_cast<const __m128i*>(in); __m128i B0 = _mm_loadu_si128(in_mm + 0); @@ -153,7 +158,6 @@ void idea_op_8(const byte in[64], byte out[64], const u16bit EK[52]) B3 = mul(B3, EK[6*i+3]); __m128i T0 = B2; - B2 = _mm_xor_si128(B2, B0); B2 = mul(B2, EK[6*i+4]); @@ -190,6 +194,10 @@ void idea_op_8(const byte in[64], byte out[64], const u16bit EK[52]) _mm_storeu_si128(out_mm + 1, B2); _mm_storeu_si128(out_mm + 2, B1); _mm_storeu_si128(out_mm + 3, B3); + + BOTAN_CONST_TIME_UNPOISON(in, 64); + BOTAN_CONST_TIME_UNPOISON(out, 64); + BOTAN_CONST_TIME_UNPOISON(EK, 52*2); } } |