old.org.bouncycastle.asn1.x9

Class X9FieldElement

java.lang.Object

old.org.bouncycastle.asn1.ASN1Encodable

old.org.bouncycastle.asn1.x9.X9FieldElement

All Implemented Interfaces:

DEREncodable

public class X9FieldElement
extends ASN1Encodable

class for processing an FieldElement as a DER object.

Field Summary

Fields

Modifier and Type	Field and Description
protected ECFieldElement	f

Fields inherited from class old.org.bouncycastle.asn1.ASN1Encodable

BER, DER

Constructor Summary

Constructors

Constructor and Description
X9FieldElement(BigInteger p, ASN1OctetString s)
X9FieldElement(ECFieldElement f)
X9FieldElement(int m, int k1, int k2, int k3, ASN1OctetString s)

Method Summary

Modifier and Type	Method and Description
ECFieldElement	getValue()
DERObject	toASN1Object() Produce an object suitable for an ASN1OutputStream.

Methods inherited from class old.org.bouncycastle.asn1.ASN1Encodable

equals, getDEREncoded, getDERObject, getEncoded, getEncoded, hashCode

Methods inherited from class java.lang.Object

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

Field Detail

f

protected ECFieldElement f

Constructor Detail

X9FieldElement

public X9FieldElement(ECFieldElement f)

X9FieldElement

public X9FieldElement(BigInteger p,
                      ASN1OctetString s)

X9FieldElement

public X9FieldElement(int m,
                      int k1,
                      int k2,
                      int k3,
                      ASN1OctetString s)

Method Detail

getValue

public ECFieldElement getValue()

toASN1Object

public DERObject toASN1Object()

Produce an object suitable for an ASN1OutputStream.

  FieldElement ::= OCTET STRING
 

1. if q is an odd prime then the field element is processed as an Integer and converted to an octet string according to x 9.62 4.3.1.
2. if q is 2^m then the bit string contained in the field element is converted into an octet string with the same ordering padded at the front if necessary.

Specified by:

toASN1Object in class ASN1Encodable