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Use ForceZero in all implementations of Transform

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This commit is contained in:
Sean Parkinson
2016-11-10 15:18:05 +10:00
parent fd21023823
commit 0e4aa233ba
1 changed files with 6 additions and 11 deletions
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17
wolfcrypt/src/sha512.c
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@@ -481,13 +481,8 @@ static int _Transform(Sha512* sha512)
sha512->digest[7] += h(0); sha512->digest[7] += h(0);
/* Wipe variables */ /* Wipe variables */
#ifdef SHA512_FORCE_ZERO
ForceZero(W, sizeof(word64) * 16); ForceZero(W, sizeof(word64) * 16);
ForceZero(T, sizeof(T)); ForceZero(T, sizeof(T));
#else
XMEMSET(W, 0, sizeof(word64) * 16);
XMEMSET(T, 0, sizeof(T));
#endif
#ifdef WOLFSSL_SMALL_STACK #ifdef WOLFSSL_SMALL_STACK
XFREE(W, NULL, DYNAMIC_TYPE_TMP_BUFFER); XFREE(W, NULL, DYNAMIC_TYPE_TMP_BUFFER);
@@ -1043,9 +1038,9 @@ static int Transform_AVX1(Sha512* sha512)
/* Wipe variables */ /* Wipe variables */
#if !defined(HAVE_INTEL_AVX1)&&!defined(HAVE_INTEL_AVX2) #if !defined(HAVE_INTEL_AVX1)&&!defined(HAVE_INTEL_AVX2)
XMEMSET(W_X, 0, sizeof(word64) * 16); ForceZero(W_X, 0, sizeof(word64) * 16);
#endif #endif
XMEMSET(T, 0, sizeof(T)); ForceZero(T, 0, sizeof(T));
return 0; return 0;
} }
@@ -1114,9 +1109,9 @@ static int Transform_AVX1_RORX(Sha512* sha512)
/* Wipe variables */ /* Wipe variables */
#if !defined(HAVE_INTEL_AVX1)&&!defined(HAVE_INTEL_AVX2) #if !defined(HAVE_INTEL_AVX1)&&!defined(HAVE_INTEL_AVX2)
XMEMSET(W_X, 0, sizeof(word64) * 16); ForceZero(W_X, 0, sizeof(word64) * 16);
#endif #endif
XMEMSET(T, 0, sizeof(T)); ForceZero(T, 0, sizeof(T));
return 0; return 0;
} }
@@ -1294,9 +1289,9 @@ static int Transform_AVX2(Sha512* sha512)
/* Wipe variables */ /* Wipe variables */
#if !defined(HAVE_INTEL_AVX1)&&!defined(HAVE_INTEL_AVX2) #if !defined(HAVE_INTEL_AVX1)&&!defined(HAVE_INTEL_AVX2)
XMEMSET(W, 0, sizeof(word64) * 16); ForceZero(W, 0, sizeof(word64) * 16);
#endif #endif
XMEMSET(T, 0, sizeof(T)); ForceZero(T, 0, sizeof(T));
return 0; return 0;
} }