java.lang.Object
- org.bouncycastle.pqc.jcajce.spec.McElieceCCA2KeyGenParameterSpec

All Implemented Interfaces:

java.security.spec.AlgorithmParameterSpec
```
public class McElieceCCA2KeyGenParameterSpec
extends java.lang.Object
implements java.security.spec.AlgorithmParameterSpec
```
This class provides a specification for the parameters that are used by the McEliece, McElieceCCA2, and Niederreiter key pair generators.

Field Summary

Fields
Modifier and Type	Field	Description
`static int`	`DEFAULT_M`	The default extension degree
`static int`	`DEFAULT_T`	The default error correcting capability.
`static java.lang.String`	`SHA1`
`static java.lang.String`	`SHA224`
`static java.lang.String`	`SHA256`
`static java.lang.String`	`SHA384`
`static java.lang.String`	`SHA512`

Constructor Summary

Constructors
Constructor	Description
`McElieceCCA2KeyGenParameterSpec()`	Constructor.
`McElieceCCA2KeyGenParameterSpec(int keysize)`	Constructor.
`McElieceCCA2KeyGenParameterSpec(int m, int t)`	Constructor.
`McElieceCCA2KeyGenParameterSpec(int m, int t, int poly)`	Constructor.
`McElieceCCA2KeyGenParameterSpec(int m, int t, int poly, java.lang.String digest)`
`McElieceCCA2KeyGenParameterSpec(int m, int t, java.lang.String digest)`
`McElieceCCA2KeyGenParameterSpec(int keysize, java.lang.String digest)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.lang.String`	`getDigest()`	Return CCA-2 digest.
`int`	`getFieldPoly()`
`int`	`getM()`
`int`	`getN()`
`int`	`getT()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - SHA1
```
public static final java.lang.String SHA1
```
    See Also:
    
    Constant Field Values
  - SHA224
```
public static final java.lang.String SHA224
```
    See Also:
    
    Constant Field Values
  - SHA256
```
public static final java.lang.String SHA256
```
    See Also:
    
    Constant Field Values
  - SHA384
```
public static final java.lang.String SHA384
```
    See Also:
    
    Constant Field Values
  - SHA512
```
public static final java.lang.String SHA512
```
    See Also:
    
    Constant Field Values
  - DEFAULT_M
```
public static final int DEFAULT_M
```
    The default extension degree
    
    See Also:
    
    Constant Field Values
  - DEFAULT_T
```
public static final int DEFAULT_T
```
    The default error correcting capability.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - McElieceCCA2KeyGenParameterSpec
```
public McElieceCCA2KeyGenParameterSpec()
```
    Constructor. Set the default parameters: extension degree.
  - McElieceCCA2KeyGenParameterSpec
```
public McElieceCCA2KeyGenParameterSpec(int keysize)
```
    Constructor.
    
    Parameters:
    
    keysize - the length of a Goppa code
    
    Throws:
    
    java.lang.IllegalArgumentException - if keysize < 1.
  - McElieceCCA2KeyGenParameterSpec
```
public McElieceCCA2KeyGenParameterSpec(int keysize,
                                       java.lang.String digest)
```
  - McElieceCCA2KeyGenParameterSpec
```
public McElieceCCA2KeyGenParameterSpec(int m,
                                       int t)
```
    Constructor.
    
    Parameters:
    
    m - degree of the finite field GF(2^m)
    
    t - error correction capability of the code
    
    Throws:
    
    java.security.InvalidParameterException - if m < 1 or m > 32 or t < 0 or t > n.
  - McElieceCCA2KeyGenParameterSpec
```
public McElieceCCA2KeyGenParameterSpec(int m,
                                       int t,
                                       java.lang.String digest)
```
  - McElieceCCA2KeyGenParameterSpec
```
public McElieceCCA2KeyGenParameterSpec(int m,
                                       int t,
                                       int poly)
```
    Constructor.
    
    Parameters:
    
    m - degree of the finite field GF(2^m)
    
    t - error correction capability of the code
    
    poly - the field polynomial
    
    Throws:
    
    java.lang.IllegalArgumentException - if m < 1 or m > 32 or t < 0 or t > n or poly is not an irreducible field polynomial.
  - McElieceCCA2KeyGenParameterSpec
```
public McElieceCCA2KeyGenParameterSpec(int m,
                                       int t,
                                       int poly,
                                       java.lang.String digest)
```
- Method Detail
  - getM
```
public int getM()
```
    Returns:
    
    the extension degree of the finite field GF(2^m)
  - getN
```
public int getN()
```
    Returns:
    
    the length of the code
  - getT
```
public int getT()
```
    Returns:
    
    the error correction capability of the code
  - getFieldPoly
```
public int getFieldPoly()
```
    Returns:
    
    the field polynomial
  - getDigest
```
public java.lang.String getDigest()
```
    Return CCA-2 digest.

Class McElieceCCA2KeyGenParameterSpec

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

SHA1

SHA224

SHA256

SHA384

SHA512

DEFAULT_M

DEFAULT_T

Constructor Detail

McElieceCCA2KeyGenParameterSpec

McElieceCCA2KeyGenParameterSpec

McElieceCCA2KeyGenParameterSpec

McElieceCCA2KeyGenParameterSpec

McElieceCCA2KeyGenParameterSpec

McElieceCCA2KeyGenParameterSpec

McElieceCCA2KeyGenParameterSpec

Method Detail

getM

getN

getT

getFieldPoly

getDigest