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Merge pull request #4686 from SparkiDev/fe448_cast

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Curve448: add casts for Windows
This commit is contained in:
David Garske
2021-12-21 22:21:25 -08:00
committed by GitHub
parent dd9b1afb72 80e291fcd1
commit ea432f45cd
1 changed files with 41 additions and 41 deletions
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82
wolfcrypt/src/fe_448.c
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@ -599,15 +599,15 @@ void fe448_to_bytes(unsigned char* b, const sword64* a)
in0 += o;
in4 += o;
in7 -= o << 56;
o = (in0 >> 56); in1 += o; t = o << 56; in0 -= t;
o = (in1 >> 56); in2 += o; t = o << 56; in1 -= t;
o = (in2 >> 56); in3 += o; t = o << 56; in2 -= t;
o = (in3 >> 56); in4 += o; t = o << 56; in3 -= t;
o = (in4 >> 56); in5 += o; t = o << 56; in4 -= t;
o = (in5 >> 56); in6 += o; t = o << 56; in5 -= t;
o = (in6 >> 56); in7 += o; t = o << 56; in6 -= t;
o = (in0 >> 56); in1 += o; t = o << 56; in0 -= (sword64)t;
o = (in1 >> 56); in2 += o; t = o << 56; in1 -= (sword64)t;
o = (in2 >> 56); in3 += o; t = o << 56; in2 -= (sword64)t;
o = (in3 >> 56); in4 += o; t = o << 56; in3 -= (sword64)t;
o = (in4 >> 56); in5 += o; t = o << 56; in4 -= (sword64)t;
o = (in5 >> 56); in6 += o; t = o << 56; in5 -= (sword64)t;
o = (in6 >> 56); in7 += o; t = o << 56; in6 -= (sword64)t;
o = (in7 >> 56); in0 += o;
in4 += o; t = o << 56; in7 -= t;
in4 += o; t = o << 56; in7 -= (sword64)t;
/* Output as bytes */
b[ 0] = (in0 >> 0);
@ -1468,23 +1468,23 @@ void fe448_to_bytes(unsigned char* b, const sword32* a)
in0 += o;
in8 += o;
in15 -= o << 28;
o = (in0 >> 28); in1 += o; t = o << 28; in0 -= t;
o = (in1 >> 28); in2 += o; t = o << 28; in1 -= t;
o = (in2 >> 28); in3 += o; t = o << 28; in2 -= t;
o = (in3 >> 28); in4 += o; t = o << 28; in3 -= t;
o = (in4 >> 28); in5 += o; t = o << 28; in4 -= t;
o = (in5 >> 28); in6 += o; t = o << 28; in5 -= t;
o = (in6 >> 28); in7 += o; t = o << 28; in6 -= t;
o = (in7 >> 28); in8 += o; t = o << 28; in7 -= t;
o = (in8 >> 28); in9 += o; t = o << 28; in8 -= t;
o = (in9 >> 28); in10 += o; t = o << 28; in9 -= t;
o = (in10 >> 28); in11 += o; t = o << 28; in10 -= t;
o = (in11 >> 28); in12 += o; t = o << 28; in11 -= t;
o = (in12 >> 28); in13 += o; t = o << 28; in12 -= t;
o = (in13 >> 28); in14 += o; t = o << 28; in13 -= t;
o = (in14 >> 28); in15 += o; t = o << 28; in14 -= t;
o = (in0 >> 28); in1 += o; t = o << 28; in0 -= (sword32)t;
o = (in1 >> 28); in2 += o; t = o << 28; in1 -= (sword32)t;
o = (in2 >> 28); in3 += o; t = o << 28; in2 -= (sword32)t;
o = (in3 >> 28); in4 += o; t = o << 28; in3 -= (sword32)t;
o = (in4 >> 28); in5 += o; t = o << 28; in4 -= (sword32)t;
o = (in5 >> 28); in6 += o; t = o << 28; in5 -= (sword32)t;
o = (in6 >> 28); in7 += o; t = o << 28; in6 -= (sword32)t;
o = (in7 >> 28); in8 += o; t = o << 28; in7 -= (sword32)t;
o = (in8 >> 28); in9 += o; t = o << 28; in8 -= (sword32)t;
o = (in9 >> 28); in10 += o; t = o << 28; in9 -= (sword32)t;
o = (in10 >> 28); in11 += o; t = o << 28; in10 -= (sword32)t;
o = (in11 >> 28); in12 += o; t = o << 28; in11 -= (sword32)t;
o = (in12 >> 28); in13 += o; t = o << 28; in12 -= (sword32)t;
o = (in13 >> 28); in14 += o; t = o << 28; in13 -= (sword32)t;
o = (in14 >> 28); in15 += o; t = o << 28; in14 -= (sword32)t;
o = (in15 >> 28); in0 += o;
in8 += o; t = o << 28; in15 -= t;
in8 += o; t = o << 28; in15 -= (sword32)t;
/* Output as bytes */
b[ 0] = (in0 >> 0);
@ -1734,23 +1734,23 @@ void fe448_reduce(sword32* a)
{
sword64 o;
o = a[0 ] >> 28; a[1 ] += o; a[0 ] -= o << 28;
o = a[1 ] >> 28; a[2 ] += o; a[1 ] -= o << 28;
o = a[2 ] >> 28; a[3 ] += o; a[2 ] -= o << 28;
o = a[3 ] >> 28; a[4 ] += o; a[3 ] -= o << 28;
o = a[4 ] >> 28; a[5 ] += o; a[4 ] -= o << 28;
o = a[5 ] >> 28; a[6 ] += o; a[5 ] -= o << 28;
o = a[6 ] >> 28; a[7 ] += o; a[6 ] -= o << 28;
o = a[7 ] >> 28; a[8 ] += o; a[7 ] -= o << 28;
o = a[8 ] >> 28; a[9 ] += o; a[8 ] -= o << 28;
o = a[9 ] >> 28; a[10] += o; a[9 ] -= o << 28;
o = a[10] >> 28; a[11] += o; a[10] -= o << 28;
o = a[11] >> 28; a[12] += o; a[11] -= o << 28;
o = a[12] >> 28; a[13] += o; a[12] -= o << 28;
o = a[13] >> 28; a[14] += o; a[13] -= o << 28;
o = a[14] >> 28; a[15] += o; a[14] -= o << 28;
o = a[15] >> 28; a[0] += o;
a[8] += o; a[15] -= o << 28;
o = a[0 ] >> 28; a[1 ] += (sword32)o; a[0 ] -= (sword32)(o << 28);
o = a[1 ] >> 28; a[2 ] += (sword32)o; a[1 ] -= (sword32)(o << 28);
o = a[2 ] >> 28; a[3 ] += (sword32)o; a[2 ] -= (sword32)(o << 28);
o = a[3 ] >> 28; a[4 ] += (sword32)o; a[3 ] -= (sword32)(o << 28);
o = a[4 ] >> 28; a[5 ] += (sword32)o; a[4 ] -= (sword32)(o << 28);
o = a[5 ] >> 28; a[6 ] += (sword32)o; a[5 ] -= (sword32)(o << 28);
o = a[6 ] >> 28; a[7 ] += (sword32)o; a[6 ] -= (sword32)(o << 28);
o = a[7 ] >> 28; a[8 ] += (sword32)o; a[7 ] -= (sword32)(o << 28);
o = a[8 ] >> 28; a[9 ] += (sword32)o; a[8 ] -= (sword32)(o << 28);
o = a[9 ] >> 28; a[10] += (sword32)o; a[9 ] -= (sword32)(o << 28);
o = a[10] >> 28; a[11] += (sword32)o; a[10] -= (sword32)(o << 28);
o = a[11] >> 28; a[12] += (sword32)o; a[11] -= (sword32)(o << 28);
o = a[12] >> 28; a[13] += (sword32)o; a[12] -= (sword32)(o << 28);
o = a[13] >> 28; a[14] += (sword32)o; a[13] -= (sword32)(o << 28);
o = a[14] >> 28; a[15] += (sword32)o; a[14] -= (sword32)(o << 28);
o = a[15] >> 28; a[0] += (sword32)o;
a[8] += (sword32)o; a[15] -= (sword32)(o << 28);
}
/* Mulitply a field element by 39081. r = (39081 * a) mod (2^448 - 2^224 - 1)
*