Class BCMcEliecePrivateKey
- java.lang.Object
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- org.bouncycastle.pqc.jcajce.provider.mceliece.BCMcEliecePrivateKey
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- All Implemented Interfaces:
Serializable
,Key
,PrivateKey
,Destroyable
,CipherParameters
public class BCMcEliecePrivateKey extends Object implements CipherParameters, PrivateKey
This class implements a McEliece private key and is usually instantiated by theMcElieceKeyPairGenerator
orMcElieceKeyFactorySpi
.- See Also:
- Serialized Form
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Constructor Summary
Constructors Constructor Description BCMcEliecePrivateKey(McEliecePrivateKeyParameters params)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
equals(Object other)
Compare this key with another object.String
getAlgorithm()
Return the name of the algorithm.byte[]
getEncoded()
Return the key data to encode in the SubjectPublicKeyInfo structure.GF2mField
getField()
String
getFormat()
PolynomialGF2mSmallM
getGoppaPoly()
GF2Matrix
getH()
int
getK()
int
getN()
Permutation
getP1()
Permutation
getP2()
PolynomialGF2mSmallM[]
getQInv()
GF2Matrix
getSInv()
int
hashCode()
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Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface javax.security.auth.Destroyable
destroy, isDestroyed
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Constructor Detail
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BCMcEliecePrivateKey
public BCMcEliecePrivateKey(McEliecePrivateKeyParameters params)
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Method Detail
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getAlgorithm
public String getAlgorithm()
Return the name of the algorithm.- Specified by:
getAlgorithm
in interfaceKey
- Returns:
- "McEliece"
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getN
public int getN()
- Returns:
- the length of the code
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getK
public int getK()
- Returns:
- the dimension of the code
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getField
public GF2mField getField()
- Returns:
- the finite field
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getGoppaPoly
public PolynomialGF2mSmallM getGoppaPoly()
- Returns:
- the irreducible Goppa polynomial
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getSInv
public GF2Matrix getSInv()
- Returns:
- the k x k random binary non-singular matrix S
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getP1
public Permutation getP1()
- Returns:
- the permutation used to generate the systematic check matrix
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getP2
public Permutation getP2()
- Returns:
- the permutation used to compute the public generator matrix
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getH
public GF2Matrix getH()
- Returns:
- the canonical check matrix
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getQInv
public PolynomialGF2mSmallM[] getQInv()
- Returns:
- the matrix for computing square roots in (GF(2^m))^t
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equals
public boolean equals(Object other)
Compare this key with another object.
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hashCode
public int hashCode()
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getEncoded
public byte[] getEncoded()
Return the key data to encode in the SubjectPublicKeyInfo structure.The ASN.1 definition of the key structure is
McEliecePrivateKey ::= SEQUENCE { n INTEGER -- length of the code k INTEGER -- dimension of the code fieldPoly OCTET STRING -- field polynomial defining GF(2ˆm) getGoppaPoly() OCTET STRING -- irreducible Goppa polynomial sInv OCTET STRING -- matrix Sˆ-1 p1 OCTET STRING -- permutation P1 p2 OCTET STRING -- permutation P2 h OCTET STRING -- canonical check matrix qInv SEQUENCE OF OCTET STRING -- matrix used to compute square roots }
- Specified by:
getEncoded
in interfaceKey
- Returns:
- the key data to encode in the SubjectPublicKeyInfo structure
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