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-rw-r--r--bcprov/src/main/java/org/bouncycastle/pqc/crypto/mceliece/McElieceCCA2KeyPairGenerator.java119
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diff --git a/bcprov/src/main/java/org/bouncycastle/pqc/crypto/mceliece/McElieceCCA2KeyPairGenerator.java b/bcprov/src/main/java/org/bouncycastle/pqc/crypto/mceliece/McElieceCCA2KeyPairGenerator.java
deleted file mode 100644
index 198e5d2..0000000
--- a/bcprov/src/main/java/org/bouncycastle/pqc/crypto/mceliece/McElieceCCA2KeyPairGenerator.java
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@@ -1,119 +0,0 @@
-package org.bouncycastle.pqc.crypto.mceliece;
-
-
-import java.security.SecureRandom;
-
-import org.bouncycastle.crypto.AsymmetricCipherKeyPair;
-import org.bouncycastle.crypto.AsymmetricCipherKeyPairGenerator;
-import org.bouncycastle.crypto.KeyGenerationParameters;
-import org.bouncycastle.pqc.math.linearalgebra.GF2Matrix;
-import org.bouncycastle.pqc.math.linearalgebra.GF2mField;
-import org.bouncycastle.pqc.math.linearalgebra.GoppaCode;
-import org.bouncycastle.pqc.math.linearalgebra.GoppaCode.MaMaPe;
-import org.bouncycastle.pqc.math.linearalgebra.Permutation;
-import org.bouncycastle.pqc.math.linearalgebra.PolynomialGF2mSmallM;
-import org.bouncycastle.pqc.math.linearalgebra.PolynomialRingGF2m;
-
-
-/**
- * This class implements key pair generation of the McEliece Public Key
- * Cryptosystem (McEliecePKC).
- */
-public class McElieceCCA2KeyPairGenerator
- implements AsymmetricCipherKeyPairGenerator
-{
-
-
- /**
- * The OID of the algorithm.
- */
- public static final String OID = "1.3.6.1.4.1.8301.3.1.3.4.2";
-
- private McElieceCCA2KeyGenerationParameters mcElieceCCA2Params;
-
- // the extension degree of the finite field GF(2^m)
- private int m;
-
- // the length of the code
- private int n;
-
- // the error correction capability
- private int t;
-
- // the field polynomial
- private int fieldPoly;
-
- // the source of randomness
- private SecureRandom random;
-
- // flag indicating whether the key pair generator has been initialized
- private boolean initialized = false;
-
- /**
- * Default initialization of the key pair generator.
- */
- private void initializeDefault()
- {
- McElieceCCA2KeyGenerationParameters mcCCA2Params = new McElieceCCA2KeyGenerationParameters(new SecureRandom(), new McElieceCCA2Parameters());
- init(mcCCA2Params);
- }
-
- // TODO
- public void init(
- KeyGenerationParameters param)
- {
- this.mcElieceCCA2Params = (McElieceCCA2KeyGenerationParameters)param;
-
- // set source of randomness
- this.random = new SecureRandom();
-
- this.m = this.mcElieceCCA2Params.getParameters().getM();
- this.n = this.mcElieceCCA2Params.getParameters().getN();
- this.t = this.mcElieceCCA2Params.getParameters().getT();
- this.fieldPoly = this.mcElieceCCA2Params.getParameters().getFieldPoly();
- this.initialized = true;
- }
-
-
- public AsymmetricCipherKeyPair generateKeyPair()
- {
-
- if (!initialized)
- {
- initializeDefault();
- }
-
- // finite field GF(2^m)
- GF2mField field = new GF2mField(m, fieldPoly);
-
- // irreducible Goppa polynomial
- PolynomialGF2mSmallM gp = new PolynomialGF2mSmallM(field, t,
- PolynomialGF2mSmallM.RANDOM_IRREDUCIBLE_POLYNOMIAL, random);
- PolynomialRingGF2m ring = new PolynomialRingGF2m(field, gp);
-
- // matrix for computing square roots in (GF(2^m))^t
- PolynomialGF2mSmallM[] qInv = ring.getSquareRootMatrix();
-
- // generate canonical check matrix
- GF2Matrix h = GoppaCode.createCanonicalCheckMatrix(field, gp);
-
- // compute short systematic form of check matrix
- MaMaPe mmp = GoppaCode.computeSystematicForm(h, random);
- GF2Matrix shortH = mmp.getSecondMatrix();
- Permutation p = mmp.getPermutation();
-
- // compute short systematic form of generator matrix
- GF2Matrix shortG = (GF2Matrix)shortH.computeTranspose();
-
- // obtain number of rows of G (= dimension of the code)
- int k = shortG.getNumRows();
-
- // generate keys
- McElieceCCA2PublicKeyParameters pubKey = new McElieceCCA2PublicKeyParameters(OID, n, t, shortG, mcElieceCCA2Params.getParameters());
- McElieceCCA2PrivateKeyParameters privKey = new McElieceCCA2PrivateKeyParameters(OID, n, k,
- field, gp, p, h, qInv, mcElieceCCA2Params.getParameters());
-
- // return key pair
- return new AsymmetricCipherKeyPair(pubKey, privKey);
- }
-}