public void TestFromRawHandle()
{
using (var handle = BigNumberHandle.Create())
{
BigNumberHandle.SetWord(handle, 3);
var number = BigNumber.FromRawHandle(handle);
Assert.That(BigNumberHandle.Compare(number.Handle, handle) == 0);
}
}
/// <inheritdoc />
public bool IsPotentialElement(BigNumber element)
{
// implementation-specific checks
if (element.Equals(BigNumber.Zero) ||
BigNumberHandle.Compare(element.Handle, _modulo.Handle) >= 0)
{
return(false);
}
return(true);
}
public void TestFromBigNumber()
{
var rawValue = 0x548f07;
var number = SecureBigNumber.FromBigNumber(new BigNumber(rawValue));
using (var expectedHandle = BigNumberHandle.Create())
{
BigNumberHandle.SetWord(expectedHandle, (ulong)rawValue);
Assert.That(BigNumberHandle.Compare(number.Handle, expectedHandle) == 0);
}
}
/// <inheritdoc />
public override bool Equals(object?obj)
{
var other = obj as BigNumber;
if (other == null)
{
return(false);
}
return(BigNumberHandle.Compare(this.Handle, other.Handle) == 0);
}
public void TestIntegerConstructor()
{
var rawValue = 869235;
var number = new BigNumber(rawValue);
using (var expectedHandle = BigNumberHandle.Create())
{
BigNumberHandle.SetWord(expectedHandle, (ulong)rawValue);
Assert.That(BigNumberHandle.Compare(number.Handle, expectedHandle) == 0);
}
}
public void TestFromRawHandle()
{
using (var handle = BigNumberHandle.Create())
{
BigNumberHandle.SetWord(handle, 3);
var number = SecureBigNumber.FromRawHandle(handle);
Assert.That(BigNumberHandle.Compare(number.Handle, handle) == 0);
Assert.That(BigNumberHandle.GetFlags(
number.Handle, BigNumberFlags.Secure).HasFlag(BigNumberFlags.Secure)
);
Assert.That(BigNumberHandle.GetFlags(
number.Handle, BigNumberFlags.ConstantTime).HasFlag(BigNumberFlags.ConstantTime)
);
}
}
public void TestRandom()
{
var NumTests = 100;
var range = new BigNumber(0x869375a76);
for (var k = 0; k < NumTests; k++)
{
using (var number = SecureBigNumber.Random(range))
{
Assert.That(BigNumberHandle.GetFlags(
number.Handle, BigNumberFlags.Secure).HasFlag(BigNumberFlags.Secure)
);
Assert.That(BigNumberHandle.GetFlags(
number.Handle, BigNumberFlags.ConstantTime).HasFlag(BigNumberFlags.ConstantTime)
);
Assert.That(BigNumberHandle.Compare(number.Handle, range.Handle) < 0);
}
}
}
