Package org.bouncycastle.crypto.asymmetric

Class NamedECDomainParameters

java.lang.Object

org.bouncycastle.crypto.asymmetric.ECDomainParameters

org.bouncycastle.crypto.asymmetric.NamedECDomainParameters

public class NamedECDomainParameters
extends ECDomainParameters

EC domain parameters associated with a specific object identifier.

Constructor Summary

Constructors

Constructor	Description
NamedECDomainParameters(ASN1ObjectIdentifier id, ECCurve curve, ECPoint G, BigInteger n)	Constructor that assumes the co-factor h is 1.
NamedECDomainParameters(ASN1ObjectIdentifier id, ECCurve curve, ECPoint G, BigInteger n, BigInteger h)	Constructor with explicit co-factor.
NamedECDomainParameters(ASN1ObjectIdentifier id, ECCurve curve, ECPoint G, BigInteger n, BigInteger h, byte[] seed)	Constructor with explicit co-factor and generation seed.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
ASN1ObjectIdentifier	getID()	Return object identifier that identifies these parameters.
int	hashCode()

Methods inherited from class org.bouncycastle.crypto.asymmetric.ECDomainParameters

getCurve, getG, getH, getInverseH, getN, getSeed

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Details

NamedECDomainParameters

public NamedECDomainParameters(ASN1ObjectIdentifier id,
 ECCurve curve,
 ECPoint G,
 BigInteger n)

Constructor that assumes the co-factor h is 1.

Parameters:

id - the object identifier that represents these parameters.

curve - the curve for these domain parameters.

G - the base point G for the domain parameters.

n - the order for the domain parameters.

NamedECDomainParameters

public NamedECDomainParameters(ASN1ObjectIdentifier id,
 ECCurve curve,
 ECPoint G,
 BigInteger n,
 BigInteger h)

Constructor with explicit co-factor.

Parameters:

id - the object identifier that represents these parameters.

curve - the curve for these domain parameters.

G - the base point G for the domain parameters.

n - the order for the domain parameters.

h - the co-factor.

NamedECDomainParameters

public NamedECDomainParameters(ASN1ObjectIdentifier id,
 ECCurve curve,
 ECPoint G,
 BigInteger n,
 BigInteger h,
 byte[] seed)

Constructor with explicit co-factor and generation seed.

Parameters:

id - the object identifier that represents these parameters.

curve - the curve for these domain parameters.

G - the base point G for the domain parameters.

n - the order for the domain parameters.

h - the co-factor.

seed - the seed value used to generate the domain parameters.

Method Details

getID

public ASN1ObjectIdentifier getID()

Return object identifier that identifies these parameters.

Returns:

the OID that names this parameter set.

equals

public boolean equals(Object o)

Overrides:

equals in class ECDomainParameters

hashCode

public int hashCode()

Overrides:

hashCode in class ECDomainParameters