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Digest
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org.bouncycastle.crypto</FONT>
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Interface Digest</H2>
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<DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../org/bouncycastle/crypto/digests/GeneralDigest.html" title="class in org.bouncycastle.crypto.digests">GeneralDigest</A></DD>
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<DT>public interface <B>Digest</B></DL>
<P>
interface that a message digest conforms to.
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<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/bouncycastle/crypto/Digest.html#doFinal(byte[], int)">doFinal</A></B>(byte[] out, int outOff)</CODE>
<BR>
close the digest, producing the final digest value. </TD>
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<CODE> java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/bouncycastle/crypto/Digest.html#getAlgorithmName()">getAlgorithmName</A></B>()</CODE>
<BR>
return the algorithm name</TD>
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<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/bouncycastle/crypto/Digest.html#getDigestSize()">getDigestSize</A></B>()</CODE>
<BR>
return the size, in bytes, of the digest produced by this message digest.</TD>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/bouncycastle/crypto/Digest.html#reset()">reset</A></B>()</CODE>
<BR>
reset the digest back to it's initial state.</TD>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/bouncycastle/crypto/Digest.html#update(byte)">update</A></B>(byte in)</CODE>
<BR>
update the message digest with a single byte.</TD>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/bouncycastle/crypto/Digest.html#update(byte[], int, int)">update</A></B>(byte[] in, int inOff, int len)</CODE>
<BR>
update the message digest with a block of bytes.</TD>
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<A NAME="doFinal(byte[], int)"><!-- --></A><H3>
doFinal</H3>
<PRE>
public int <B>doFinal</B>(byte[] out, int outOff)</PRE>
<DL>
<DD>close the digest, producing the final digest value. The doFinal call leaves the digest reset.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>out</CODE> - the array the digest is to be copied into.<DD><CODE>outOff</CODE> - the offset into the out array the digest is to start at.</DL>
</DD>
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<A NAME="getAlgorithmName()"><!-- --></A><H3>
getAlgorithmName</H3>
<PRE>
public java.lang.String <B>getAlgorithmName</B>()</PRE>
<DL>
<DD>return the algorithm name
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the algorithm name</DL>
</DD>
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<A NAME="getDigestSize()"><!-- --></A><H3>
getDigestSize</H3>
<PRE>
public int <B>getDigestSize</B>()</PRE>
<DL>
<DD>return the size, in bytes, of the digest produced by this message digest.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the size, in bytes, of the digest produced by this message digest.</DL>
</DD>
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<A NAME="reset()"><!-- --></A><H3>
reset</H3>
<PRE>
public void <B>reset</B>()</PRE>
<DL>
<DD>reset the digest back to it's initial state.
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<A NAME="update(byte)"><!-- --></A><H3>
update</H3>
<PRE>
public void <B>update</B>(byte in)</PRE>
<DL>
<DD>update the message digest with a single byte.
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<DT><B>Parameters:</B><DD><CODE>in</CODE> - the input byte to be entered.</DL>
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<A NAME="update(byte[], int, int)"><!-- --></A><H3>
update</H3>
<PRE>
public void <B>update</B>(byte[] in, int inOff, int len)</PRE>
<DL>
<DD>update the message digest with a block of bytes.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>in</CODE> - the byte array containing the data.<DD><CODE>inOff</CODE> - the offset into the byte array where the data starts.<DD><CODE>len</CODE> - the length of the data.</DL>
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