Examples of GF2Vector

org.bouncycastle.pqc.math.linearalgebra.GF2Vector
This class implements the abstract class Vector for the case of vectors over the finite field GF(2).
For the vector representation the array of type int[] is used, thus one element of the array holds 32 elements of the vector. @see Vector

Examples of org.bouncycastle.pqc.math.linearalgebra.GF2Vector

        byte[][] c1c2 = ByteUtils.split(input, c1Len);
        byte[] c1 = c1c2[0];
        byte[] c2 = c1c2[1];


        // decrypt c1 ...
        GF2Vector hrmVec = GF2Vector.OS2VP(n, c1);
        GF2Vector[] decC1 = McElieceCCA2Primitives.decryptionPrimitive((McElieceCCA2PrivateKeyParameters)key,
            hrmVec);
        byte[] rBytes = decC1[0].getEncoded();
        // ... and obtain error vector z
        GF2Vector z = decC1[1];


        // get PRNG object
        DigestRandomGenerator sr0 = new DigestRandomGenerator(new SHA1Digest());


        // seed PRNG with r'

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Examples of org.bouncycastle.pqc.math.linearalgebra.GF2Vector

        // generate random r of length k div 8 bytes
        byte[] r = new byte[kDiv8];
        sr.nextBytes(r);


        // generate random vector r' of length k bits
        GF2Vector rPrime = new GF2Vector(k, sr);


        // convert r' to byte array
        byte[] rPrimeBytes = rPrime.getEncoded();


        // compute (input||r)
        byte[] mr = ByteUtils.concatenate(input, r);


        // compute H(input||r)
        messDigest.update(mr, 0, mr.length);
        byte[] hmr = new byte[messDigest.getDigestSize()];
        messDigest.doFinal(hmr, 0);




        // convert H(input||r) to error vector z
        GF2Vector z = Conversions.encode(n, t, hmr);


        // compute c1 = E(rPrime, z)
        byte[] c1 = McElieceCCA2Primitives.encryptionPrimitive((McElieceCCA2PublicKeyParameters)key, rPrime,
            z).getEncoded();

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Examples of org.bouncycastle.pqc.math.linearalgebra.GF2Vector

        byte[][] c1c2 = ByteUtils.split(input, c1Len);
        byte[] c1 = c1c2[0];
        byte[] c2 = c1c2[1];


        // decrypt c1 ...
        GF2Vector c1Vec = GF2Vector.OS2VP(n, c1);
        GF2Vector[] c1Dec = McElieceCCA2Primitives.decryptionPrimitive((McElieceCCA2PrivateKeyParameters)key,
            c1Vec);
        byte[] rPrimeBytes = c1Dec[0].getEncoded();
        // ... and obtain error vector z
        GF2Vector z = c1Dec[1];


        // get PRNG object
        DigestRandomGenerator sr0 = new DigestRandomGenerator(new SHA1Digest());


        // seed PRNG with r'

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