Bouncy Castle Provider 1.77 · org.bouncycastle.jce.spec.ECParameterSpec

Modifier and Type	Field and Description
private ECCurve	curve
private ECPoint	G
private BigInteger	h
private BigInteger	n
private byte[]	seed

Access	Constructor and Description
public	ECParameterSpec(ECCurve curve, ECPoint G, BigInteger n)
public	ECParameterSpec(ECCurve curve, ECPoint G, BigInteger n, BigInteger h)
public	ECParameterSpec(ECCurve curve, ECPoint G, BigInteger n, BigInteger h, byte[] seed)

Modifier and Type	Method and Description
public boolean	equals(Object the reference object with which to compare. o) Overrides java.lang.Object.equals. Indicates whether some other object is "equal to" this one.
public ECCurve	Returns: the curve getCurve() return the curve along which the base point lies.
public ECPoint	Returns: the base point. getG() return the base point we are using for these domain parameters.
public BigInteger	Returns: the cofactor getH() return the cofactor H to the order of G.
public BigInteger	Returns: the order getN() return the order N of G
public byte[]	Returns: the random seed getSeed() return the seed used to generate this curve (if available).
public int	hashCode() Overrides java.lang.Object.hashCode. Returns a hash code value for the object.

Field Detail

curve	back to summary
private ECCurve curve

G	back to summary
private ECPoint G

h	back to summary
private BigInteger h

n	back to summary
private BigInteger n

seed	back to summary
private byte[] seed

Constructor Detail

ECParameterSpec	back to summary
public ECParameterSpec(ECCurve curve, ECPoint G, BigInteger n)

ECParameterSpec	back to summary
public ECParameterSpec(ECCurve curve, ECPoint G, BigInteger n, BigInteger h)

ECParameterSpec	back to summary
public ECParameterSpec(ECCurve curve, ECPoint G, BigInteger n, BigInteger h, byte[] seed)

Method Detail

equals back to summary

equals	back to summary
public boolean equals(Object o) Overrides java.lang.Object.equals. Doc from java.lang.Object.equals. Indicates whether some other object is "equal to" this one. The `equals` method implements an equivalence relation on non-null object references: It is reflexive: for any non-null reference value `x`, `x.equals(x)` should return `true`. It is symmetric: for any non-null reference values `x` and `y`, `x.equals(y)` should return `true` if and only if `y.equals(x)` returns `true`. It is transitive: for any non-null reference values `x`, `y`, and `z`, if `x.equals(y)` returns `true` and `y.equals(z)` returns `true`, then `x.equals(z)` should return `true`. It is consistent: for any non-null reference values `x` and `y`, multiple invocations of `x.equals(y)` consistently return `true` or consistently return `false`, provided no information used in `equals` comparisons on the objects is modified. For any non-null reference value `x`, `x.equals(null)` should return `false`. An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes. Parameters o:Object the reference object with which to compare. Returns:boolean `true` if this object is the same as the obj argument; `false` otherwise.

public boolean equals(Object o)

Overrides java.lang.Object.equals.

Doc from java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

It is reflexive: for any non-null reference value x, x.equals(x) should return true.
It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters

o:Object: the reference object with which to compare.

Returns:boolean

true if this object is the same as the obj argument; false otherwise.

getCurve	back to summary
public ECCurve getCurve() return the curve along which the base point lies. Returns:ECCurve the curve

getCurve

back to summary

public ECCurve getCurve()

return the curve along which the base point lies.

Returns:ECCurve: the curve

getG	back to summary
public ECPoint getG() return the base point we are using for these domain parameters. Returns:ECPoint the base point.

getG

back to summary

public ECPoint getG()

return the base point we are using for these domain parameters.

Returns:ECPoint: the base point.

getH	back to summary
public BigInteger getH() return the cofactor H to the order of G. Returns:BigInteger the cofactor

getH

back to summary

public BigInteger getH()

return the cofactor H to the order of G.

Returns:BigInteger: the cofactor

getN	back to summary
public BigInteger getN() return the order N of G Returns:BigInteger the order

getN

back to summary

public BigInteger getN()

return the order N of G

Returns:BigInteger: the order

getSeed	back to summary
public byte[] getSeed() return the seed used to generate this curve (if available). Returns:byte[] the random seed

getSeed

back to summary

public byte[] getSeed()

return the seed used to generate this curve (if available).

Returns:byte[]: the random seed

hashCode back to summary

hashCode	back to summary
public int hashCode() Overrides java.lang.Object.hashCode. Doc from java.lang.Object.hashCode. Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by `java.util.HashMap`. The general contract of `hashCode` is: Whenever it is invoked on the same object more than once during an execution of a Java application, the `hashCode` method must consistently return the same integer, provided no information used in `equals` comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application. If two objects are equal according to the `equals` method, then calling the `hashCode` method on each of the two objects must produce the same integer result. It is not required that if two objects are unequal according to the `equals` method, then calling the `hashCode` method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables. Returns:int a hash code value for this object.

public int hashCode()

Overrides java.lang.Object.hashCode.

Doc from java.lang.Object.hashCode.

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by java.util.HashMap.

The general contract of hashCode is:

Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

Returns:int: a hash code value for this object.

public Class ECParameterSpec

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