diff options
| -rw-r--r-- | crypto/src/pqc/crypto/bike/BikeEngine.cs | 42 |
1 files changed, 35 insertions, 7 deletions
diff --git a/crypto/src/pqc/crypto/bike/BikeEngine.cs b/crypto/src/pqc/crypto/bike/BikeEngine.cs index f7c126c66..2a8882901 100644 --- a/crypto/src/pqc/crypto/bike/BikeEngine.cs +++ b/crypto/src/pqc/crypto/bike/BikeEngine.cs @@ -396,17 +396,45 @@ namespace Org.BouncyCastle.Pqc.Crypto.Bike Debug.Assert(0 <= j && j < r); int count = 0; - for (int i = 0; i < hw; i++) + + int i = 0, limit8 = hw - 8; + while (i < limit8) + { + int sPos0 = hCompactCol[i + 0] + j - r; + int sPos1 = hCompactCol[i + 1] + j - r; + int sPos2 = hCompactCol[i + 2] + j - r; + int sPos3 = hCompactCol[i + 3] + j - r; + int sPos4 = hCompactCol[i + 4] + j - r; + int sPos5 = hCompactCol[i + 5] + j - r; + int sPos6 = hCompactCol[i + 6] + j - r; + int sPos7 = hCompactCol[i + 7] + j - r; + + sPos0 += (sPos0 >> 31) & r; + sPos1 += (sPos1 >> 31) & r; + sPos2 += (sPos2 >> 31) & r; + sPos3 += (sPos3 >> 31) & r; + sPos4 += (sPos4 >> 31) & r; + sPos5 += (sPos5 >> 31) & r; + sPos6 += (sPos6 >> 31) & r; + sPos7 += (sPos7 >> 31) & r; + + count += s[sPos0]; + count += s[sPos1]; + count += s[sPos2]; + count += s[sPos3]; + count += s[sPos4]; + count += s[sPos5]; + count += s[sPos6]; + count += s[sPos7]; + + i += 8; + } + while (i < hw) { - //int sPos = (hCompactCol[i] + j) % r; int sPos = hCompactCol[i] + j - r; sPos += (sPos >> 31) & r; - - //if (s[sPos] == 1) - //{ - // count += 1; - //} count += s[sPos]; + ++i; } return count; } |