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-rw-r--r--src/org/jboss/security/srp/SRPParameters.java150
1 files changed, 150 insertions, 0 deletions
diff --git a/src/org/jboss/security/srp/SRPParameters.java b/src/org/jboss/security/srp/SRPParameters.java
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+/*
+ * JBoss, Home of Professional Open Source.
+ * Copyright 2006, Red Hat Middleware LLC, and individual contributors
+ * as indicated by the @author tags. See the copyright.txt file in the
+ * distribution for a full listing of individual contributors.
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this software; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
+ */
+package org.jboss.security.srp;
+
+import java.io.Serializable;
+import java.util.Arrays;
+
+import org.spongycastle.util.encoders.Base64;
+
+/** The RFC2945 algorithm session parameters that the client and server
+agree to use. In addition to the base RFC2945 parameters, one can choose an
+alternate hash algorithm for the private session key.
+
+@author Scott.Stark@jboss.org
+@version $Revision: 57210 $
+*/
+public class SRPParameters implements Cloneable, Serializable
+{
+ /** The serial version ID.
+ * @since 1.2.4.1
+ */
+ private static final long serialVersionUID = 6438772808805276693L;
+
+ /** The algorithm safe-prime modulus */
+ public final byte[] N;
+ /** The algorithm primitive generator */
+ public final byte[] g;
+ /** The random password salt originally used to verify the password */
+ public final byte[] s;
+ /** The algorithm to hash the session key to produce K. To be consistent
+ with the RFC2945 description this must be SHA_Interleave as implemented
+ by the JBossSX security provider. For compatibility with earlier JBossSX
+ SRP releases the algorithm must be SHA_ReverseInterleave. This name is
+ passed to java.security.MessageDigest.getInstance(). */
+ public final String hashAlgorithm;
+ /** The algorithm to use for any encryption of data.
+ */
+ public final String cipherAlgorithm;
+ /** The cipher intialization vector bytes
+ */
+ public byte[] cipherIV;
+
+ /** Creates a new instance of SRPParameters */
+ public SRPParameters(byte[] N, byte[] g, byte[] s)
+ {
+ this(N, g, s, "SHA_Interleave", null);
+ }
+ public SRPParameters(byte[] N, byte[] g, byte[] s, String hashAlgorithm)
+ {
+ this(N, g, s, hashAlgorithm, null);
+ }
+ public SRPParameters(byte[] N, byte[] g, byte[] s, String hashAlgorithm,
+ String cipherAlgorithm)
+ {
+ this(N, g, s, hashAlgorithm, cipherAlgorithm, null);
+ }
+ public SRPParameters(byte[] N, byte[] g, byte[] s, String hashAlgorithm,
+ String cipherAlgorithm, byte[] cipherIV)
+ {
+ this.N = N;
+ this.g = g;
+ this.s = s;
+ if( hashAlgorithm == null )
+ hashAlgorithm = "SHA_Interleave";
+ this.hashAlgorithm = hashAlgorithm;
+ this.cipherAlgorithm = cipherAlgorithm;
+ this.cipherIV = cipherIV;
+ }
+
+ public Object clone()
+ {
+ Object clone = null;
+ try
+ {
+ clone = super.clone();
+ }
+ catch(CloneNotSupportedException e)
+ {
+ }
+ return clone;
+ }
+
+ public int hashCode()
+ {
+ int hashCode = hashAlgorithm.hashCode();
+ for(int i = 0; i < N.length; i ++)
+ hashCode += N[i];
+ for(int i = 0; i < g.length; i ++)
+ hashCode += g[i];
+ for(int i = 0; i < s.length; i ++)
+ hashCode += s[i];
+ return hashCode;
+ }
+
+ public boolean equals(Object obj)
+ {
+ boolean equals = false;
+ if( obj instanceof SRPParameters )
+ {
+ SRPParameters p = (SRPParameters) obj;
+ equals = hashAlgorithm.equals(p.hashAlgorithm);
+ if( equals == true )
+ equals = Arrays.equals(N, p.N);
+ if( equals == true )
+ equals = Arrays.equals(g, p.g);
+ if( equals == true )
+ equals = Arrays.equals(s, p.s);
+ }
+ return equals;
+ }
+
+ public String toString()
+ {
+ StringBuffer tmp = new StringBuffer(super.toString());
+ tmp.append('{');
+ tmp.append("N: ");
+ tmp.append(Base64.encode(N));
+ tmp.append("|g: ");
+ tmp.append(Base64.encode(g));
+ tmp.append("|s: ");
+ tmp.append(Base64.encode(s));
+ tmp.append("|hashAlgorithm: ");
+ tmp.append(hashAlgorithm);
+ tmp.append("|cipherAlgorithm: ");
+ tmp.append(cipherAlgorithm);
+ tmp.append("|cipherIV: ");
+ tmp.append(cipherIV);
+ tmp.append('}');
+ return tmp.toString();
+ }
+}