DSAGenParameterSpec

public final class DSAGenParameterSpec
extends Object implements AlgorithmParameterSpec

java.lang.Object
↳	java.security.spec.DSAGenParameterSpec

This immutable class specifies the set of parameters used for generating DSA parameters as specified in FIPS 186-3 Digital Signature Standard (DSS).

See also:

AlgorithmParameterSpec

Summary

Public constructors
`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`.

Public methods
`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.

Inherited methods

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeoutMillis, int nanos)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait()` Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

Public constructors

DSAGenParameterSpec

Added in API level 35

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`	`int`: the desired length of the prime P in bits.
`subprimeQLen`	`int`: 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

Added in API level 35

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

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

Parameters
`primePLen`	`int`: the desired length of the prime P in bits.
`subprimeQLen`	`int`: the desired length of the sub-prime Q in bits.
`seedLen`	`int`: 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.

Public methods

getPrimePLength

Added in API level 35

public int getPrimePLength ()

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

Returns
`int`	the length of the prime P.

getSeedLength

Added in API level 35

public int getSeedLength ()

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

Returns
`int`	the length of the domain parameter seed.

getSubprimeQLength

Added in API level 35

public int getSubprimeQLength ()

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

Returns
`int`	the length of the sub-prime Q.