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Fix for buffer overflows in fp_mul.

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This commit is contained in:
Giovanni Bajo 2011-09-20 12:00:07 +02:00
parent c32affe350
commit 3f7a1dca3b
1 changed files with 18 additions and 18 deletions
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36
src/mul/fp_mul.c
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@ -28,92 +28,92 @@ void fp_mul(fp_int *A, fp_int *B, fp_int *C)
if say y=17 then we would do (32-17)^2 = 225 unneeded multiplications
*/
#ifdef TFM_MUL3
#ifdef TFM_MUL3 && FP_SIZE >= 6
if (y <= 3) {
fp_mul_comba3(A,B,C);
return;
}
#endif
#ifdef TFM_MUL4
#ifdef TFM_MUL4 && FP_SIZE >= 8
if (y == 4) {
fp_mul_comba4(A,B,C);
return;
}
#endif
#ifdef TFM_MUL6
#ifdef TFM_MUL6 && FP_SIZE >= 12
if (y <= 6) {
fp_mul_comba6(A,B,C);
return;
}
#endif
#ifdef TFM_MUL7
#ifdef TFM_MUL7 && FP_SIZE >= 14
if (y == 7) {
fp_mul_comba7(A,B,C);
return;
}
#endif
#ifdef TFM_MUL8
#ifdef TFM_MUL8 && FP_SIZE >= 16
if (y == 8) {
fp_mul_comba8(A,B,C);
return;
}
#endif
#ifdef TFM_MUL9
#ifdef TFM_MUL9 && FP_SIZE >= 18
if (y == 9) {
fp_mul_comba9(A,B,C);
return;
}
#endif
#ifdef TFM_MUL12
#ifdef TFM_MUL12 && FP_SIZE >= 24
if (y <= 12) {
fp_mul_comba12(A,B,C);
return;
}
#endif
#ifdef TFM_MUL17
#ifdef TFM_MUL17 && FP_SIZE >= 34
if (y <= 17) {
fp_mul_comba17(A,B,C);
return;
}
#endif
#ifdef TFM_SMALL_SET
#ifdef TFM_SMALL_SET && FP_SIZE >= 32
if (y <= 16) {
fp_mul_comba_small(A,B,C);
return;
}
#endif
#if defined(TFM_MUL20)
#if defined(TFM_MUL20) && FP_SIZE >= 40
if (y <= 20) {
fp_mul_comba20(A,B,C);
return;
}
#endif
#if defined(TFM_MUL24)
#if defined(TFM_MUL24) && FP_SIZE >= 48
if (yy >= 16 && y <= 24) {
fp_mul_comba24(A,B,C);
return;
}
#endif
#if defined(TFM_MUL28)
#if defined(TFM_MUL28) && FP_SIZE >= 56
if (yy >= 20 && y <= 28) {
fp_mul_comba28(A,B,C);
return;
}
#endif
#if defined(TFM_MUL32)
#if defined(TFM_MUL32) && FP_SIZE >= 64
if (yy >= 24 && y <= 32) {
fp_mul_comba32(A,B,C);
return;
}
#endif
#if defined(TFM_MUL48)
#if defined(TFM_MUL48) && FP_SIZE >= 96
if (yy >= 40 && y <= 48) {
fp_mul_comba48(A,B,C);
return;
}
#endif
#if defined(TFM_MUL64)
#if defined(TFM_MUL64) && FP_SIZE >= 128
if (yy >= 56 && y <= 64) {
fp_mul_comba64(A,B,C);
return;
@ -123,6 +123,6 @@ void fp_mul(fp_int *A, fp_int *B, fp_int *C)
}
/* $Source$ */
/* $Revision$ */
/* $Date$ */
/* $Source: /cvs/libtom/tomsfastmath/src/mul/fp_mul.c,v $ */
/* $Revision: 1.1 $ */
/* $Date: 2006/12/31 21:25:53 $ */