com.entrust.toolkit.security.provider

Class NamedCurveFactory

java.lang.Object

com.entrust.toolkit.security.provider.NamedCurveFactory

Deprecated.

since 7.2 SP2; use EcParameterFactory instead

public class NamedCurveFactory
extends java.lang.Object

This factory class offers static methods to retrieve named curves.

In particular, the Toolkit supports all prime named curves given in ANSI X9.62-2005, Public Key Cryptography for the Financial Service Industry: The Elliptic Curve Digital Signature Algorithm (ECDSA).

 -- Information object set for named elliptic curve domain parameter
 ANSIX9NamedDomains ECDOMAIN ::= {
     { ID ansix9t163k1 } |
     { ID ansix9t163r2 } |
     { ID ansix9t233k1 } |
     { ID ansix9t233r1 } |
     { ID ansix9t283k1 } |
     { ID ansix9t283r1 } |
     { ID ansix9t409k1 } |
     { ID ansix9t409r1 } |
     { ID ansix9t571k1 } |
     { ID ansix9t571r1 } |
     { ID ansix9p192k1 } |
     { ID ansix9p192r1 } |
     { ID ansix9p224k1 } |
     { ID ansix9p224r1 } |
     { ID ansix9p256k1 } |
     { ID ansix9p256r1 } |
     { ID ansix9p384r1 } |
     { ID ansix9p512r1 },
     ... -- Additional named EC domain parameters may be added.
 }
 
 -- Named EC domain parameters in X9.62
 ansix9t163k1 OBJECT IDENTIFIER ::= { 1 3 132 0 1 }
 ansix9t163r1 OBJECT IDENTIFIER ::= { 1 3 132 0 2 }
 ansix9t163r2 OBJECT IDENTIFIER ::= { 1 3 132 0 15 }
 ansix9t193r1 OBJECT IDENTIFIER ::= { 1 3 132 0 24 }
 ansix9t193r2 OBJECT IDENTIFIER ::= { 1 3 132 0 25 }
 ansix9t233k1 OBJECT IDENTIFIER ::= { 1 3 132 0 26 }
 ansix9t233r1 OBJECT IDENTIFIER ::= { 1 3 132 0 27 }
 ansix9t239k1 OBJECT IDENTIFIER ::= { 1 3 132 0 3 }
 ansix9t283k1 OBJECT IDENTIFIER ::= { 1 3 132 0 16 }
 ansix9t283r1 OBJECT IDENTIFIER ::= { 1 3 132 0 17 }
 ansix9t409k1 OBJECT IDENTIFIER ::= { 1 3 132 0 36 }
 ansix9t409r1 OBJECT IDENTIFIER ::= { 1 3 132 0 37 }
 ansix9t571k1 OBJECT IDENTIFIER ::= { 1 3 132 0 38 }
 ansix9t571r1 OBJECT IDENTIFIER ::= { 1 3 132 0 39 }
 ansix9p160k1 OBJECT IDENTIFIER ::= { 1 3 132 0 9 }
 ansix9p160r1 OBJECT IDENTIFIER ::= { 1 3 132 0 8 }
 ansix9p160r2 OBJECT IDENTIFIER ::= { 1 3 132 0 30 }
 ansix9p192k1 OBJECT IDENTIFIER ::= { 1 3 132 0 31 }
 ansix9p192r1 OBJECT IDENTIFIER ::= { 1 2 840 10045 3 1 1 }
 ansix9p224k1 OBJECT IDENTIFIER ::= { 1 3 132 0 32 }
 ansix9p224r1 OBJECT IDENTIFIER ::= { 1 3 132 0 33 }
 ansix9p256k1 OBJECT IDENTIFIER ::= { 1 3 132 0 10 }
 ansix9p256r1 OBJECT IDENTIFIER ::= { 1 2 840 10045 3 1 7 }
 ansix9p384r1 OBJECT IDENTIFIER ::= { 1 3 132 0 34 }
 ansix9p521r1 OBJECT IDENTIFIER ::= { 1 3 132 0 35 }
 

Constructor Summary

Constructors

Constructor and Description
NamedCurveFactory() Deprecated.

Method Summary

Modifier and Type	Method and Description
static ECParameters	getInstance(int length) Deprecated. Returns an ECParameters object given its field size as an integer.
static ECParameters	getInstance(ObjectID oid) Deprecated. Returns an ECParameters object given an object identifier (OID).

Methods inherited from class java.lang.Object

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

Constructor Detail

NamedCurveFactory

public NamedCurveFactory()

Deprecated.

Method Detail

getInstance

public static ECParameters getInstance(ObjectID oid)
                                throws java.lang.IllegalArgumentException

Deprecated.

Returns an ECParameters object given an object identifier (OID).

Refer to the class description for a mapping of curves to their OIDs.

Parameters:

oid - an ObjectID

Returns:

an ECParameter object

Throws:

java.lang.IllegalArgumentException - if oid is not known to be linked to a named curve

getInstance

public static ECParameters getInstance(int length)
                                throws java.lang.IllegalArgumentException

Deprecated.

Returns an ECParameters object given its field size as an integer.

Parameters:

length - an integer that indicates the strength of the named curve — the log of the number of elements of the underlying field

Returns:

an ECParameter object, representing a named curve of the specified strength

Throws:

java.lang.IllegalArgumentException - if a named curve of the given strength is not known