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Diffstat (limited to 'libraries/spongycastle/core/src/test/java/org/spongycastle/pqc/math/ntru/polynomial/test/BigDecimalPolynomialTest.java')
-rw-r--r-- | libraries/spongycastle/core/src/test/java/org/spongycastle/pqc/math/ntru/polynomial/test/BigDecimalPolynomialTest.java | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/libraries/spongycastle/core/src/test/java/org/spongycastle/pqc/math/ntru/polynomial/test/BigDecimalPolynomialTest.java b/libraries/spongycastle/core/src/test/java/org/spongycastle/pqc/math/ntru/polynomial/test/BigDecimalPolynomialTest.java deleted file mode 100644 index fdeb68555..000000000 --- a/libraries/spongycastle/core/src/test/java/org/spongycastle/pqc/math/ntru/polynomial/test/BigDecimalPolynomialTest.java +++ /dev/null @@ -1,47 +0,0 @@ -package org.spongycastle.pqc.math.ntru.polynomial.test; - -import java.math.BigDecimal; -import java.security.SecureRandom; - -import junit.framework.TestCase; -import org.spongycastle.pqc.math.ntru.polynomial.BigDecimalPolynomial; -import org.spongycastle.pqc.math.ntru.polynomial.BigIntPolynomial; -import org.spongycastle.pqc.math.ntru.polynomial.DenseTernaryPolynomial; -import org.spongycastle.pqc.math.ntru.polynomial.IntegerPolynomial; - -public class BigDecimalPolynomialTest - extends TestCase -{ - public void testMult() - { - BigDecimalPolynomial a = new BigDecimalPolynomial(new BigIntPolynomial(new IntegerPolynomial(new int[]{4, -1, 9, 2, 1, -5, 12, -7, 0, -9, 5}))); - BigDecimalPolynomial b = new BigDecimalPolynomial(new BigIntPolynomial(new IntegerPolynomial(new int[]{-6, 0, 0, 13, 3, -2, -4, 10, 11, 2, -1}))); - BigDecimalPolynomial c = a.mult(b); - BigDecimal[] expectedCoeffs = new BigDecimalPolynomial(new BigIntPolynomial(new IntegerPolynomial(new int[]{2, -189, 77, 124, -29, 0, -75, 124, -49, 267, 34}))).getCoeffs(); - - BigDecimal[] cCoeffs = c.getCoeffs(); - - assertEquals(expectedCoeffs.length, cCoeffs.length); - for (int i = 0; i != cCoeffs.length; i++) - { - assertEquals(expectedCoeffs[i], cCoeffs[i]); - } - - // multiply a polynomial by its inverse modulo 2048 and check that the result is 1 - SecureRandom random = new SecureRandom(); - IntegerPolynomial d, dInv; - do - { - d = DenseTernaryPolynomial.generateRandom(1001, 333, 334, random); - dInv = d.invertFq(2048); - } - while (dInv == null); - - d.mod(2048); - BigDecimalPolynomial e = new BigDecimalPolynomial(new BigIntPolynomial(d)); - BigIntPolynomial f = new BigIntPolynomial(dInv); - IntegerPolynomial g = new IntegerPolynomial(e.mult(f).round()); - g.modPositive(2048); - assertTrue(g.equalsOne()); - } -}
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