public void testEncodeDecodeMod3Tight()
{
SecureRandom random = new SecureRandom();
int[] coeffs = DenseTernaryPolynomial.GenerateRandom(1000, random).coeffs;
byte[] data = ArrayEncoder.EncodeMod3Tight(coeffs);
int[] coeffs2 = ArrayEncoder.DecodeMod3Tight(data, 1000);
Assert.True(coeffs.SequenceEqual(coeffs2));
}
private void EncodeDecodeMod3Tight()
{
int[] coeffs = PolynomialGeneratorForTesting.generateRandom(1000).Coeffs;
byte[] data = ArrayEncoder.EncodeMod3Tight(coeffs);
int[] coeffs2 = ArrayEncoder.DecodeMod3Tight(data, 1000);
if (!Compare.AreEqual(coeffs, coeffs2))
{
throw new Exception("ArrayEncoder EncodeDecodeMod3Tight test failed!");
}
}
/**
* Reads data produced by {@link #toBinary3Tight()} from an input stream and converts it to a polynomial.
*
* @param is an input stream
* @param N number of coefficients
* @return the decoded polynomial
*/
public static IntegerPolynomial FromBinary3Tight(Stream stream, int N)
{
return(new IntegerPolynomial(ArrayEncoder.DecodeMod3Tight(stream, N)));
}
/**
* Converts a byte array produced by {@link #toBinary3Tight()} to a polynomial.
*
* @param b a byte array
* @param N number of coefficients
* @return the decoded polynomial
*/
public static IntegerPolynomial FromBinary3Tight(byte[] b, int N)
{
return(new IntegerPolynomial(ArrayEncoder.DecodeMod3Tight(b, N)));
}