src/share/classes/java/security/spec/MGF1ParameterSpec.java

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   1 /*
   2  * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any


  75         new MGF1ParameterSpec("SHA-256");
  76     /**
  77      * The MGF1ParameterSpec which uses "SHA-384" message digest.
  78      */
  79     public static final MGF1ParameterSpec SHA384 =
  80         new MGF1ParameterSpec("SHA-384");
  81     /**
  82      * The MGF1ParameterSpec which uses SHA-512 message digest.
  83      */
  84     public static final MGF1ParameterSpec SHA512 =
  85         new MGF1ParameterSpec("SHA-512");
  86 
  87     private String mdName;
  88 
  89     /**
  90      * Constructs a parameter set for mask generation function MGF1
  91      * as defined in the PKCS #1 standard.
  92      *
  93      * @param mdName the algorithm name for the message digest
  94      * used in this mask generation function MGF1.
  95      * @exception NullPointerException if <code>mdName</code> is null.
  96      */
  97     public MGF1ParameterSpec(String mdName) {
  98         if (mdName == null) {
  99             throw new NullPointerException("digest algorithm is null");
 100         }
 101         this.mdName = mdName;
 102     }
 103 
 104     /**
 105      * Returns the algorithm name of the message digest used by the mask
 106      * generation function.
 107      *
 108      * @return the algorithm name of the message digest.
 109      */
 110     public String getDigestAlgorithm() {
 111         return mdName;
 112     }
 113 }
   1 /*
   2  * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any


  75         new MGF1ParameterSpec("SHA-256");
  76     /**
  77      * The MGF1ParameterSpec which uses "SHA-384" message digest.
  78      */
  79     public static final MGF1ParameterSpec SHA384 =
  80         new MGF1ParameterSpec("SHA-384");
  81     /**
  82      * The MGF1ParameterSpec which uses SHA-512 message digest.
  83      */
  84     public static final MGF1ParameterSpec SHA512 =
  85         new MGF1ParameterSpec("SHA-512");
  86 
  87     private String mdName;
  88 
  89     /**
  90      * Constructs a parameter set for mask generation function MGF1
  91      * as defined in the PKCS #1 standard.
  92      *
  93      * @param mdName the algorithm name for the message digest
  94      * used in this mask generation function MGF1.
  95      * @exception NullPointerException if {@code mdName} is null.
  96      */
  97     public MGF1ParameterSpec(String mdName) {
  98         if (mdName == null) {
  99             throw new NullPointerException("digest algorithm is null");
 100         }
 101         this.mdName = mdName;
 102     }
 103 
 104     /**
 105      * Returns the algorithm name of the message digest used by the mask
 106      * generation function.
 107      *
 108      * @return the algorithm name of the message digest.
 109      */
 110     public String getDigestAlgorithm() {
 111         return mdName;
 112     }
 113 }