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Diffstat (limited to 'libraries/spongycastle/prov/src/main/java/org/spongycastle/pqc/jcajce/provider/mceliece/BCMcElieceCCA2PrivateKey.java')
-rw-r--r--libraries/spongycastle/prov/src/main/java/org/spongycastle/pqc/jcajce/provider/mceliece/BCMcElieceCCA2PrivateKey.java307
1 files changed, 0 insertions, 307 deletions
diff --git a/libraries/spongycastle/prov/src/main/java/org/spongycastle/pqc/jcajce/provider/mceliece/BCMcElieceCCA2PrivateKey.java b/libraries/spongycastle/prov/src/main/java/org/spongycastle/pqc/jcajce/provider/mceliece/BCMcElieceCCA2PrivateKey.java
deleted file mode 100644
index 0a22dd6f3..000000000
--- a/libraries/spongycastle/prov/src/main/java/org/spongycastle/pqc/jcajce/provider/mceliece/BCMcElieceCCA2PrivateKey.java
+++ /dev/null
@@ -1,307 +0,0 @@
-package org.spongycastle.pqc.jcajce.provider.mceliece;
-
-import java.io.IOException;
-import java.security.PrivateKey;
-
-import org.spongycastle.asn1.ASN1ObjectIdentifier;
-import org.spongycastle.asn1.ASN1Primitive;
-import org.spongycastle.asn1.DERNull;
-import org.spongycastle.asn1.pkcs.PrivateKeyInfo;
-import org.spongycastle.asn1.x509.AlgorithmIdentifier;
-import org.spongycastle.crypto.CipherParameters;
-import org.spongycastle.pqc.asn1.McElieceCCA2PrivateKey;
-import org.spongycastle.pqc.crypto.mceliece.McElieceCCA2KeyPairGenerator;
-import org.spongycastle.pqc.crypto.mceliece.McElieceCCA2Parameters;
-import org.spongycastle.pqc.crypto.mceliece.McElieceCCA2PrivateKeyParameters;
-import org.spongycastle.pqc.jcajce.spec.McElieceCCA2PrivateKeySpec;
-import org.spongycastle.pqc.math.linearalgebra.GF2Matrix;
-import org.spongycastle.pqc.math.linearalgebra.GF2mField;
-import org.spongycastle.pqc.math.linearalgebra.Permutation;
-import org.spongycastle.pqc.math.linearalgebra.PolynomialGF2mSmallM;
-
-/**
- * This class implements a McEliece CCA2 private key and is usually instantiated
- * by the {@link McElieceCCA2KeyPairGenerator} or {@link McElieceCCA2KeyFactorySpi}.
- *
- * @see McElieceCCA2KeyPairGenerator
- */
-public class BCMcElieceCCA2PrivateKey
- implements CipherParameters, PrivateKey
-{
-
-
- /**
- *
- */
- private static final long serialVersionUID = 1L;
-
- // the OID of the algorithm
- private String oid;
-
- // the length of the code
- private int n;
-
- // the dimension of the code, k>=n-mt
- private int k;
-
- // the finte field GF(2^m)
- private GF2mField field;
-
- // the irreducible Goppa polynomial
- private PolynomialGF2mSmallM goppaPoly;
-
- // the permutation
- private Permutation p;
-
- // the canonical check matrix
- private GF2Matrix h;
-
- // the matrix used to compute square roots in (GF(2^m))^t
- private PolynomialGF2mSmallM[] qInv;
-
- private McElieceCCA2Parameters mcElieceCCA2Params;
-
- /**
- * Constructor (used by the {@link McElieceCCA2KeyPairGenerator}).
- *
- * @param n the length of the code
- * @param k the dimension of the code
- * @param field the field polynomial
- * @param gp the irreducible Goppa polynomial
- * @param p the permutation
- * @param h the canonical check matrix
- * @param qInv the matrix used to compute square roots in
- * <tt>(GF(2^m))^t</tt>
- */
- public BCMcElieceCCA2PrivateKey(String oid, int n, int k, GF2mField field,
- PolynomialGF2mSmallM gp, Permutation p, GF2Matrix h,
- PolynomialGF2mSmallM[] qInv)
- {
- this.oid = oid;
- this.n = n;
- this.k = k;
- this.field = field;
- this.goppaPoly = gp;
- this.p = p;
- this.h = h;
- this.qInv = qInv;
- }
-
- /**
- * Constructor (used by the {@link McElieceCCA2KeyFactorySpi}).
- *
- * @param keySpec a {@link McElieceCCA2PrivateKeySpec}
- */
- public BCMcElieceCCA2PrivateKey(McElieceCCA2PrivateKeySpec keySpec)
- {
- this(keySpec.getOIDString(), keySpec.getN(), keySpec.getK(), keySpec.getField(), keySpec
- .getGoppaPoly(), keySpec.getP(), keySpec.getH(), keySpec
- .getQInv());
- }
-
- public BCMcElieceCCA2PrivateKey(McElieceCCA2PrivateKeyParameters params)
- {
- this(params.getOIDString(), params.getN(), params.getK(), params.getField(), params.getGoppaPoly(),
- params.getP(), params.getH(), params.getQInv());
- this.mcElieceCCA2Params = params.getParameters();
- }
-
- /**
- * Return the name of the algorithm.
- *
- * @return "McEliece"
- */
- public String getAlgorithm()
- {
- return "McEliece";
- }
-
- /**
- * @return the length of the code
- */
- public int getN()
- {
- return n;
- }
-
- /**
- * @return the dimension of the code
- */
- public int getK()
- {
- return k;
- }
-
- /**
- * @return the degree of the Goppa polynomial (error correcting capability)
- */
- public int getT()
- {
- return goppaPoly.getDegree();
- }
-
- /**
- * @return the finite field
- */
- public GF2mField getField()
- {
- return field;
- }
-
- /**
- * @return the irreducible Goppa polynomial
- */
- public PolynomialGF2mSmallM getGoppaPoly()
- {
- return goppaPoly;
- }
-
- /**
- * @return the permutation vector
- */
- public Permutation getP()
- {
- return p;
- }
-
- /**
- * @return the canonical check matrix
- */
- public GF2Matrix getH()
- {
- return h;
- }
-
- /**
- * @return the matrix used to compute square roots in <tt>(GF(2^m))^t</tt>
- */
- public PolynomialGF2mSmallM[] getQInv()
- {
- return qInv;
- }
-
- /**
- * @return a human readable form of the key
- */
- public String toString()
- {
- String result = "";
- result += " extension degree of the field : " + n + "\n";
- result += " dimension of the code : " + k + "\n";
- result += " irreducible Goppa polynomial : " + goppaPoly + "\n";
- return result;
- }
-
- /**
- * Compare this key with another object.
- *
- * @param other the other object
- * @return the result of the comparison
- */
- public boolean equals(Object other)
- {
- if (other == null || !(other instanceof BCMcElieceCCA2PrivateKey))
- {
- return false;
- }
-
- BCMcElieceCCA2PrivateKey otherKey = (BCMcElieceCCA2PrivateKey)other;
-
- return (n == otherKey.n) && (k == otherKey.k)
- && field.equals(otherKey.field)
- && goppaPoly.equals(otherKey.goppaPoly) && p.equals(otherKey.p)
- && h.equals(otherKey.h);
- }
-
- /**
- * @return the hash code of this key
- */
- public int hashCode()
- {
- return k + n + field.hashCode() + goppaPoly.hashCode() + p.hashCode()
- + h.hashCode();
- }
-
- /**
- * @return the OID of the algorithm
- */
- public String getOIDString()
- {
- return oid;
- }
-
- /**
- * @return the OID to encode in the SubjectPublicKeyInfo structure
- */
- protected ASN1ObjectIdentifier getOID()
- {
- return new ASN1ObjectIdentifier(McElieceCCA2KeyFactorySpi.OID);
- }
-
- /**
- * @return the algorithm parameters to encode in the SubjectPublicKeyInfo
- * structure
- */
- protected ASN1Primitive getAlgParams()
- {
- return null; // FIXME: needed at all?
- }
-
-
- /**
- * Return the keyData to encode in the SubjectPublicKeyInfo structure.
- * <p/>
- * The ASN.1 definition of the key structure is
- * <p/>
- * <pre>
- * McEliecePrivateKey ::= SEQUENCE {
- * m INTEGER -- extension degree of the field
- * k INTEGER -- dimension of the code
- * field OCTET STRING -- field polynomial
- * goppaPoly OCTET STRING -- irreducible Goppa polynomial
- * p OCTET STRING -- permutation vector
- * matrixH OCTET STRING -- canonical check matrix
- * sqRootMatrix SEQUENCE OF OCTET STRING -- square root matrix
- * }
- * </pre>
- *
- * @return the keyData to encode in the SubjectPublicKeyInfo structure
- */
- public byte[] getEncoded()
- {
- McElieceCCA2PrivateKey privateKey = new McElieceCCA2PrivateKey(new ASN1ObjectIdentifier(oid), n, k, field, goppaPoly, p, h, qInv);
- PrivateKeyInfo pki;
- try
- {
- AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(this.getOID(), DERNull.INSTANCE);
- pki = new PrivateKeyInfo(algorithmIdentifier, privateKey);
- }
- catch (IOException e)
- {
- e.printStackTrace();
- return null;
- }
- try
- {
- byte[] encoded = pki.getEncoded();
- return encoded;
- }
- catch (IOException e)
- {
- e.printStackTrace();
- return null;
- }
- }
-
- public String getFormat()
- {
- // TODO Auto-generated method stub
- return null;
- }
-
- public McElieceCCA2Parameters getMcElieceCCA2Parameters()
- {
- return mcElieceCCA2Params;
- }
-
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-10 12:17:28 +0000