secp256k1ScalarGetBitsLimb32 static method

int secp256k1ScalarGetBitsLimb32(
  1. Secp256k1Scalar a,
  2. int offset,
  3. int count
)

Implementation

static int secp256k1ScalarGetBitsLimb32(
    Secp256k1Scalar a, int offset, int count) {
  secp256k1ScalarVerify(a);
  _cond(count > 0 && count <= 32, "secp256k1ScalarGetBitsLimb32");
  _cond((offset + count - 1) >> 6 == offset >> 6,
      "secp256k1ScalarGetBitsLimb32");
  final n = (a[offset >> 6] >> (offset & 0x3F)) &
      (0xFFFFFFFF >> (32 - count)).toBigInt;
  return n.toUnSignedInt32;
}