public void One()
{
byte[] actual = new byte[X25519.KeySize];
X25519.FieldElement fe = X25519.FieldElement.One();
fe.CopyTo(actual);
byte[] expected = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
CollectionAssert.AreEqual(expected, actual);
}
public void Invert()
{
X25519.FieldElement a = X25519.FieldElement.FromBytes(A);
byte[] actual = new byte[X25519.KeySize];
X25519.FieldElement c = new X25519.FieldElement();
X25519.FieldElement.Invert(ref c, ref a);
c.CopyTo(actual);
byte[] expected = { 0x8E, 0x66, 0x2F, 0x60, 0xFC, 0xCD, 0x3A, 0x11, 0x36, 0xF5, 0xD9, 0xE6, 0x94, 0x28, 0x04, 0x2A, 0x6B, 0x5D, 0xC4, 0x72, 0x82, 0x30, 0xF3, 0x09, 0xC0, 0x24, 0xDE, 0xCD, 0x60, 0x3F, 0x5D, 0x17 };
CollectionAssert.AreEqual(expected, actual);
}
public void Multiply121666()
{
X25519.FieldElement a = X25519.FieldElement.FromBytes(A);
byte[] actual = new byte[X25519.KeySize];
X25519.FieldElement c = new X25519.FieldElement();
X25519.FieldElement.Multiply121666(ref c, ref a);
c.CopyTo(actual);
byte[] expected = { 0x65, 0x3E, 0xE9, 0x9D, 0x08, 0xAC, 0x1A, 0x17, 0x61, 0x4F, 0x2C, 0xED, 0x30, 0x0B, 0x9B, 0xCB, 0x2B, 0x63, 0x53, 0xB9, 0x7D, 0x67, 0x62, 0x11, 0x39, 0xF1, 0x50, 0xC9, 0x6C, 0xA1, 0x66, 0x72 };
CollectionAssert.AreEqual(expected, actual);
}
public void Multiply()
{
X25519.FieldElement a = X25519.FieldElement.FromBytes(A);
X25519.FieldElement b = X25519.FieldElement.FromBytes(B);
byte[] actual = new byte[X25519.KeySize];
X25519.FieldElement c = new X25519.FieldElement();
X25519.FieldElement.Multiply(ref c, ref a, ref b);
c.CopyTo(actual);
byte[] expected = { 0x1E, 0xBE, 0xBD, 0xE0, 0xEC, 0xB1, 0x3C, 0xDB, 0x50, 0x6E, 0xD6, 0x50, 0x02, 0x1A, 0x59, 0x99, 0xC1, 0xC0, 0xFC, 0xE0, 0xBF, 0xDB, 0x64, 0xB0, 0x3E, 0xB3, 0x2D, 0x43, 0x8B, 0x66, 0x43, 0x3C };
CollectionAssert.AreEqual(expected, actual);
}
public void Sub()
{
X25519.FieldElement a = X25519.FieldElement.FromBytes(A);
X25519.FieldElement b = X25519.FieldElement.FromBytes(B);
byte[] actual = new byte[X25519.KeySize];
X25519.FieldElement c = new X25519.FieldElement();
X25519.FieldElement.Sub(ref c, ref a, ref b);
c.CopyTo(actual);
byte[] expected = { 0xEC, 0x51, 0x81, 0xFB, 0x83, 0x2C, 0x07, 0x62, 0x20, 0x51, 0x3F, 0xC7, 0x57, 0xC7, 0xAC, 0x16, 0x78, 0x2D, 0x2C, 0x5F, 0x9E, 0x31, 0x97, 0xF7, 0xFE, 0x78, 0x0C, 0xDF, 0x1F, 0xBD, 0x08, 0x47 };
CollectionAssert.AreEqual(expected, actual);
}
public void Add()
{
X25519.FieldElement a = X25519.FieldElement.FromBytes(A);
X25519.FieldElement b = X25519.FieldElement.FromBytes(B);
byte[] actual = new byte[X25519.KeySize];
X25519.FieldElement c = new X25519.FieldElement();
X25519.FieldElement.Add(ref c, ref a, ref b);
c.CopyTo(actual);
byte[] expected = { 0x43, 0x68, 0xE0, 0x8B, 0x1A, 0x39, 0x60, 0x9B, 0x69, 0x48, 0x08, 0x50, 0x1D, 0xB4, 0x15, 0x0F, 0x47, 0xA8, 0xDF, 0x3D, 0xB9, 0x62, 0x19, 0x92, 0x2B, 0xDC, 0x56, 0x96, 0x96, 0x07, 0x06, 0x56 };
CollectionAssert.AreEqual(expected, actual);
}
public void Square()
{
X25519.FieldElement a = X25519.FieldElement.FromBytes(A);
byte[] actual = new byte[X25519.KeySize];
X25519.FieldElement c = new X25519.FieldElement();
X25519.FieldElement.Square(ref c, ref a);
c.CopyTo(actual);
byte[] expected = { 0xAE, 0xB2, 0x22, 0xD4, 0x72, 0xF7, 0xF4, 0x09, 0xBB, 0x9A, 0xA9, 0x99, 0xEB, 0x7F, 0xC4, 0xE1, 0x4C, 0x0A, 0x53, 0xEB, 0x3C, 0xFF, 0x5C, 0xE2, 0xF6, 0x92, 0x46, 0x53, 0x29, 0xE1, 0x5D, 0x7A };
CollectionAssert.AreEqual(expected, actual);
a = X25519.FieldElement.FromBytes(A);
X25519.FieldElement.Square(ref a, ref a);
a.CopyTo(actual);
CollectionAssert.AreEqual(expected, actual);
}
