src/java.base/share/classes/java/security/interfaces/DSAKeyPairGenerator.java

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  /*
!  * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
--- 1,7 ----
  /*
!  * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
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  /**
   * An interface to an object capable of generating DSA key pairs.
   *
   * <p>The {@code initialize} methods may each be called any number
   * of times. If no {@code initialize} method is called on a
!  * DSAKeyPairGenerator, the default is to generate 1024-bit keys, using
!  * precomputed p, q and g parameters and an instance of SecureRandom as
!  * the random bit source.
   *
   * <p>Users wishing to indicate DSA-specific parameters, and to generate a key
   * pair suitable for use with the DSA algorithm typically
   *
   * <ol>
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  /**
   * An interface to an object capable of generating DSA key pairs.
   *
   * <p>The {@code initialize} methods may each be called any number
   * of times. If no {@code initialize} method is called on a
!  * DSAKeyPairGenerator, each provider that implements this interface
!  * should supply (and document) a default initialization. Note that
!  * defaults may vary across different providers. Additionally, the default
!  * value for a provider may change in a future version. Therefore, it is
!  * recommended to explicitly initialize the DSAKeyPairGenerator instead
!  * of relying on provider-specific defaults. 
   *
   * <p>Users wishing to indicate DSA-specific parameters, and to generate a key
   * pair suitable for use with the DSA algorithm typically
   *
   * <ol>
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   *
   * <li>Get a key pair generator for the DSA algorithm by calling the
   * KeyPairGenerator {@code getInstance} method with "DSA"
   * as its argument.
   *
!  * <li>Initialize the generator by casting the result to a DSAKeyPairGenerator
!  * and calling one of the
!  * {@code initialize} methods from this DSAKeyPairGenerator interface.
   *
   * <li>Generate a key pair by calling the {@code generateKeyPair}
!  * method from the KeyPairGenerator class.
   *
   * </ol>
   *
   * <p>Note: it is not always necessary to do algorithm-specific
   * initialization for a DSA key pair generator. That is, it is not always
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   *
   * <li>Get a key pair generator for the DSA algorithm by calling the
   * KeyPairGenerator {@code getInstance} method with "DSA"
   * as its argument.
   *
!  * <li>Check if the returned key pair generator is an instance of
!  * DSAKeyPairGenerator before casting the result to a DSAKeyPairGenerator
!  * and calling one of the {@code initialize} methods from this
!  * DSAKeyPairGenerator interface.
   *
   * <li>Generate a key pair by calling the {@code generateKeyPair}
!  * method of the KeyPairGenerator class.
   *
   * </ol>
   *
   * <p>Note: it is not always necessary to do algorithm-specific
   * initialization for a DSA key pair generator. That is, it is not always
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   * in the KeyPairGenerator
   * interface is all that is needed when you accept defaults for algorithm-specific
   * parameters.
   *
   * <p>Note: Some earlier implementations of this interface may not support
!  * larger sizes of DSA parameters such as 2048 and 3072-bit.
   *
   * @since 1.1
   * @see java.security.KeyPairGenerator
   */
  public interface DSAKeyPairGenerator {
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   * in the KeyPairGenerator
   * interface is all that is needed when you accept defaults for algorithm-specific
   * parameters.
   *
   * <p>Note: Some earlier implementations of this interface may not support
!  * larger values of DSA parameters such as 3072-bit.
   *
   * @since 1.1
   * @see java.security.KeyPairGenerator
   */
  public interface DSAKeyPairGenerator {
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       *
       * <p>If {@code genParams} is true, this method generates new
       * p, q and g parameters. If it is false, the method uses precomputed
       * parameters for the modulus length requested. If there are no
       * precomputed parameters for that modulus length, an exception will be
!      * thrown. It is guaranteed that there will always be
!      * default parameters for modulus lengths of 512 and 1024 bits.
       *
       * @param modlen the modulus length in bits. Valid values are any
       * multiple of 64 between 512 and 1024, inclusive, 2048, and 3072.
       *
       * @param random the random bit source to use to generate key bits;
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       *
       * <p>If {@code genParams} is true, this method generates new
       * p, q and g parameters. If it is false, the method uses precomputed
       * parameters for the modulus length requested. If there are no
       * precomputed parameters for that modulus length, an exception will be
!      * thrown.
       *
       * @param modlen the modulus length in bits. Valid values are any
       * multiple of 64 between 512 and 1024, inclusive, 2048, and 3072.
       *
       * @param random the random bit source to use to generate key bits;