digesttool.html

jxta的api库

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<A NAME="DigestTool()"><!-- --></A><H3>
DigestTool</H3>
<PRE>
public <B>DigestTool</B>()</PRE>
<DL>
</DL>
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<A NAME="DigestTool(java.lang.String)"><!-- --></A><H3>
DigestTool</H3>
<PRE>
public <B>DigestTool</B>(java.lang.String&nbsp;algorithmType)</PRE>
<DL>
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<B>Method Detail</B></FONT></TD>
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<A NAME="createPipeID(net.jxta.peergroup.PeerGroupID, java.lang.String, java.lang.String)"><!-- --></A><H3>
createPipeID</H3>
<PRE>
public final <A HREF="../../../../../net/jxta/impl/id/binaryID/PipeBinaryID.html" title="class in net.jxta.impl.id.binaryID">PipeBinaryID</A> <B>createPipeID</B>(<A HREF="../../../../../net/jxta/peergroup/PeerGroupID.html" title="class in net.jxta.peergroup">PeerGroupID</A>&nbsp;peerGroupID,
                                       java.lang.String&nbsp;clearTextID,
                                       java.lang.String&nbsp;function)</PRE>
<DL>
<DD>Create a PipeID based on the BinaryID type with a digest of the clearTextID and function.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>peerGroupID</CODE> - Parent peer group ID.<DD><CODE>clearTextID</CODE> - String used as the significant part of the address<DD><CODE>function</CODE> - String used to diferentiate different clearTextID addresses (can be null).
<DT><B>Returns:</B><DD>PipeBinaryID with the digest hash of the string: clearTextID+"~"+function.</DL>
</DD>
</DL>
<HR>

<A NAME="createPeerGroupID(net.jxta.peergroup.PeerGroupID, java.lang.String, java.lang.String)"><!-- --></A><H3>
createPeerGroupID</H3>
<PRE>
public final <A HREF="../../../../../net/jxta/impl/id/binaryID/PeerGroupBinaryID.html" title="class in net.jxta.impl.id.binaryID">PeerGroupBinaryID</A> <B>createPeerGroupID</B>(<A HREF="../../../../../net/jxta/peergroup/PeerGroupID.html" title="class in net.jxta.peergroup">PeerGroupID</A>&nbsp;parentPeerGroupID,
                                                 java.lang.String&nbsp;clearTextID,
                                                 java.lang.String&nbsp;function)</PRE>
<DL>
<DD>Create a PeerGroupID based on the BinaryID type with a digest of the clearTextID and function.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>clearTextID</CODE> - String used as the significant part of the address<DD><CODE>function</CODE> - String used to diferentiate different clearTextID addresses (can be null).
<DT><B>Returns:</B><DD>PeerGroupBinaryID with the digest hash of the string: clearTextID+"~"+function.</DL>
</DD>
</DL>
<HR>

<A NAME="createPeerID(net.jxta.peergroup.PeerGroupID, java.lang.String, java.lang.String)"><!-- --></A><H3>
createPeerID</H3>
<PRE>
public final <A HREF="../../../../../net/jxta/impl/id/binaryID/PeerBinaryID.html" title="class in net.jxta.impl.id.binaryID">PeerBinaryID</A> <B>createPeerID</B>(<A HREF="../../../../../net/jxta/peergroup/PeerGroupID.html" title="class in net.jxta.peergroup">PeerGroupID</A>&nbsp;peerGroupID,
                                       java.lang.String&nbsp;clearTextID,
                                       java.lang.String&nbsp;function)</PRE>
<DL>
<DD>Create a PeerID based on the BinaryID type with a digest of the clearTextID and function.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>peerGroupID</CODE> - Parent peer group ID.<DD><CODE>clearTextID</CODE> - String used as the significant part of the address<DD><CODE>function</CODE> - String used to diferentiate different clearTextID addresses (can be null).
<DT><B>Returns:</B><DD>PeerBinaryID with the digest hash of the string: clearTextID+"~"+function.</DL>
</DD>
</DL>
<HR>

<A NAME="generateHashString(java.lang.String)"><!-- --></A><H3>
generateHashString</H3>
<PRE>
public final java.lang.String <B>generateHashString</B>(java.lang.String&nbsp;clearTextID)</PRE>
<DL>
<DD>Generates a Base64 encoded string of an SHA-1 digest hash of the string: clearTextID.<p>
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>clearTextID</CODE> - A string that is to be hashed. This can be any string used for hashing or hiding data.
<DT><B>Returns:</B><DD>Base64 encoded string containing the hash of the string: clearTextID.</DL>
</DD>
</DL>
<HR>

<A NAME="generateHashString(java.lang.String, java.lang.String)"><!-- --></A><H3>
generateHashString</H3>
<PRE>
public final java.lang.String <B>generateHashString</B>(java.lang.String&nbsp;clearTextID,
                                                 java.lang.String&nbsp;function)</PRE>
<DL>
<DD>Generates a Base64 encoded string of an SHA-1 digest hash of the string: clearTextID+"-"+function or: clearTextID if function was blank.<p>
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>clearTextID</CODE> - A string that is to be hashed. This can be any string used for hashing or hiding data.<DD><CODE>function</CODE> - A function related to the clearTextID string. This is used to create a hash associated with clearTextID so that it is a uique code.
<DT><B>Returns:</B><DD>Base64 encoded string containing the hash of the string: clearTextID+"-"+function or clearTextID if function was blank.</DL>
</DD>
</DL>
<HR>

<A NAME="generateHash(java.lang.String)"><!-- --></A><H3>
generateHash</H3>
<PRE>
public final byte[] <B>generateHash</B>(java.lang.String&nbsp;clearTextID)</PRE>
<DL>
<DD>Generates a SHA-1 digest hash of the string: clearTextID.<p>
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>clearTextID</CODE> - A string that is to be hashed. This can be any string used for hashing or hiding data.
<DT><B>Returns:</B><DD>String containing the hash of the string: clearTextID.</DL>
</DD>
</DL>
<HR>

<A NAME="generateHash(java.lang.String, java.lang.String)"><!-- --></A><H3>
generateHash</H3>
<PRE>
public final byte[] <B>generateHash</B>(java.lang.String&nbsp;clearTextID,
                                 java.lang.String&nbsp;function)</PRE>
<DL>
<DD>Generates an SHA-1 digest hash of the string: clearTextID+"-"+function or: clearTextID if function was blank.<p>

 Note that the SHA-1 used only creates a 20 byte hash.<p>
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>clearTextID</CODE> - A string that is to be hashed. This can be any string used for hashing or hiding data.<DD><CODE>function</CODE> - A function related to the clearTextID string. This is used to create a hash associated with clearTextID so that it is a uique code.
<DT><B>Returns:</B><DD>array of bytes containing the hash of the string: clearTextID+"-"+function or clearTextID if function was blank. Can return null if SHA-1 does not exist on platform.</DL>
</DD>
</DL>
<HR>

<A NAME="test(java.lang.String, java.lang.String, java.lang.String)"><!-- --></A><H3>
test</H3>
<PRE>
public final boolean <B>test</B>(java.lang.String&nbsp;clearTextID,
                          java.lang.String&nbsp;function,
                          java.lang.String&nbsp;testHash)</PRE>
<DL>
<DD>Generates an SHA-1 digest hash of the string: clearTextID.<p>
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>clearTextID</CODE> - A string that is to be hashed. This can be any string used for hashing or hiding data.
<DT><B>Returns:</B><DD>String containing the hash of the string: clearTextID.</DL>
</DD>
</DL>
<HR>

<A NAME="test(java.lang.String, java.lang.String)"><!-- --></A><H3>
test</H3>
<PRE>
public final boolean <B>test</B>(java.lang.String&nbsp;clearTextID,
                          java.lang.String&nbsp;testHash)</PRE>
<DL>
<DD>Compares a clear text code or ID with a candidate hash code.
 This is used to confirm that the clearTextID can be successfully converted to the hash.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>clearTextID</CODE> - A string that is to be hashed. This can be any string used for hashing or hiding data.<DD><CODE>testHash</CODE> - A string of hashed string.
<DT><B>Returns:</B><DD>true if the hash created from clearTextID is equal to the testHash string.Can return false if SHA-1 does not exist on platform.</DL>
</DD>
</DL>
<HR>

<A NAME="test(java.lang.String, byte[])"><!-- --></A><H3>
test</H3>
<PRE>
public final boolean <B>test</B>(java.lang.String&nbsp;clearTextID,
                          byte[]&nbsp;testHash)</PRE>
<DL>
<DD>Compares a clear text code or ID with a candidate hash code.
 This is used to confirm that the clearTextID can be successfully converted to the hash.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>clearTextID</CODE> - A string that is to be hashed. This can be any string used for hashing or hiding data.<DD><CODE>testHash</CODE> - A string of hashed string.
<DT><B>Returns:</B><DD>true if the hash created from clearTextID is equal to the testHash string.Can return false if SHA-1 does not exist on platform.</DL>
</DD>
</DL>
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