Package java.security.interfaces

Interface DSAKeyPairGenerator

public interface DSAKeyPairGenerator
The interface for key generators that can generate DSA key pairs.

  • Method Summary

    Modifier and Type Method Description
    void initialize​(int modlen, boolean genParams, SecureRandom random)
    Initializes this generator for the specified modulus length.
    void initialize​(DSAParams params, SecureRandom random)
    Initializes this generator with the prime (p), subprime ( q), and base (g) values from the specified parameters.

  • Method Details

    • initialize

      void initialize​(DSAParams params, SecureRandom random) throws InvalidParameterException
      Initializes this generator with the prime (p), subprime ( q), and base (g) values from the specified parameters.
      Parameters:
      params - the parameter values.
      random - the source of randomness.
      Throws:
      InvalidParameterException - if the specified parameter values are null or invalid.

    • initialize

      void initialize​(int modlen, boolean genParams, SecureRandom random) throws InvalidParameterException
      Initializes this generator for the specified modulus length. Valid values for the modulus length are the multiples of 8 between 512 and 1024.

      The parameter genParams specifies whether this method should generate new prime (p), subprime (q), and base (g) values or whether it will use the pre-calculated values for the specified modulus length. Default parameters are available for modulus lengths of 512 and 1024 bits.

      Parameters:
      modlen - the length of the modulus in bits.
      genParams - whether new values should be generated.
      random - the source of randomness.
      Throws:
      InvalidParameterException - if the specified modulus length is not valid, or if there are no pre-calculated values and genParams is false.