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cast to larger type for multiplication

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JacobBarthelmeh
2024-07-19 13:59:05 -06:00
parent 8a9c893c6f
commit f5ed2460df
1 changed files with 4 additions and 4 deletions
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8
wolfcrypt/src/misc.c
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@ -997,10 +997,10 @@ WC_MISC_STATIC WC_INLINE w64wrapper w64Mul(word32 a, word32 b)
ltlC = b & 0xFFFF; ltlC = b & 0xFFFF;
ltlD = (b >> 16) & 0xFFFF; ltlD = (b >> 16) & 0xFFFF;
bigA = ltlA * ltlC; bigA = (word32)ltlA * (word32)ltlC;
bigC = ltlB * ltlC; bigC = (word32)ltlB * (word32)ltlC;
bigD = ltlA * ltlD; bigD = (word32)ltlA * (word32)ltlD;
bigB = ltlB * ltlD; bigB = (word32)ltlB * (word32)ltlD;
ret = w64From32(0, bigB); ret = w64From32(0, bigB);
ret = w64ShiftLeft(ret, 16); ret = w64ShiftLeft(ret, 16);