All Implemented Interfaces:

AlgorithmParameterSpec

public final class DSAGenParameterSpec
extends Object
implements AlgorithmParameterSpec 

Since:

8

See Also:

AlgorithmParameterSpec

• Constructor Summary

  Constructors

  Constructor	Description
  DSAGenParameterSpec (int primePLen, int subprimeQLen)	Creates a domain parameter specification for DSA parameter generation using primePLen and subprimeQLen.
  DSAGenParameterSpec (int primePLen, int subprimeQLen, int seedLen)	Creates a domain parameter specification for DSA parameter generation using primePLen, subprimeQLen, and seedLen.

• Method Summary

  All Methods

  Modifier and Type	Method	Description
  int	getPrimePLength ()	Returns the desired length of the prime P of the to-be-generated DSA domain parameters in bits.
  int	getSeedLength ()	Returns the desired length of the domain parameter seed in bits.
  int	getSubprimeQLength ()	Returns the desired length of the sub-prime Q of the to-be-generated DSA domain parameters in bits.

  • Methods inherited from class java.lang.Object

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

• Constructor Detail

  • DSAGenParameterSpec

    public DSAGenParameterSpec(int primePLen,
     int subprimeQLen)

    Creates a domain parameter specification for DSA parameter generation using primePLen and subprimeQLen. The value of subprimeQLen is also used as the default length of the domain parameter seed in bits.

    Parameters:

    primePLen - the desired length of the prime P in bits.

    subprimeQLen - the desired length of the sub-prime Q in bits.

    Throws:

    IllegalArgumentException - if primePLen or subprimeQLen is illegal per the specification of FIPS 186-3.

  • DSAGenParameterSpec

    public DSAGenParameterSpec(int primePLen,
     int subprimeQLen,
     int seedLen)

    Creates a domain parameter specification for DSA parameter generation using primePLen, subprimeQLen, and seedLen.

    Parameters:

    primePLen - the desired length of the prime P in bits.

    subprimeQLen - the desired length of the sub-prime Q in bits.

    seedLen - the desired length of the domain parameter seed in bits, shall be equal to or greater than subprimeQLen.

    Throws:

    IllegalArgumentException - if primePLenLen, subprimeQLen, or seedLen is illegal per the specification of FIPS 186-3.

• Method Detail

  • getPrimePLength

    public int getPrimePLength()

    Returns the desired length of the prime P of the to-be-generated DSA domain parameters in bits.

    Returns:

    the length of the prime P.

  • getSubprimeQLength

    public int getSubprimeQLength()

    Returns the desired length of the sub-prime Q of the to-be-generated DSA domain parameters in bits.

    Returns:

    the length of the sub-prime Q.

  • getSeedLength

    public int getSeedLength()

    Returns the desired length of the domain parameter seed in bits.

    Returns:

    the length of the domain parameter seed.