bufferedasymmetricblockcipher.html

java非对称加密的源代码

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<A NAME="buf"><!-- --></A><H3>
buf</H3>
<PRE>
protected byte[] <B>buf</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>

<A NAME="bufOff"><!-- --></A><H3>
bufOff</H3>
<PRE>
protected int <B>bufOff</B></PRE>
<DL>
<DL>
</DL>
</DL>

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<A NAME="BufferedAsymmetricBlockCipher(org.bouncycastle.crypto.AsymmetricBlockCipher)"><!-- --></A><H3>
BufferedAsymmetricBlockCipher</H3>
<PRE>
public <B>BufferedAsymmetricBlockCipher</B>(<A HREF="../../../org/bouncycastle/crypto/AsymmetricBlockCipher.html" title="interface in org.bouncycastle.crypto">AsymmetricBlockCipher</A>&nbsp;cipher)</PRE>
<DL>
<DD>base constructor.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>cipher</CODE> - the cipher this buffering object wraps.</DL>
</DL>

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<A NAME="getUnderlyingCipher()"><!-- --></A><H3>
getUnderlyingCipher</H3>
<PRE>
public <A HREF="../../../org/bouncycastle/crypto/AsymmetricBlockCipher.html" title="interface in org.bouncycastle.crypto">AsymmetricBlockCipher</A> <B>getUnderlyingCipher</B>()</PRE>
<DL>
<DD>return the underlying cipher for the buffer.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the underlying cipher for the buffer.</DL>
</DD>
</DL>
<HR>

<A NAME="getBufferPosition()"><!-- --></A><H3>
getBufferPosition</H3>
<PRE>
public int <B>getBufferPosition</B>()</PRE>
<DL>
<DD>return the amount of data sitting in the buffer.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the amount of data sitting in the buffer.</DL>
</DD>
</DL>
<HR>

<A NAME="init(boolean, org.bouncycastle.crypto.CipherParameters)"><!-- --></A><H3>
init</H3>
<PRE>
public void <B>init</B>(boolean&nbsp;forEncryption,
                 <A HREF="../../../org/bouncycastle/crypto/CipherParameters.html" title="interface in org.bouncycastle.crypto">CipherParameters</A>&nbsp;params)</PRE>
<DL>
<DD>initialise the buffer and the underlying cipher.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>forEncryption</CODE> - if true the cipher is initialised for
  encryption, if false for decryption.<DD><CODE>params</CODE> - the key and other data required by the cipher.</DL>
</DD>
</DL>
<HR>

<A NAME="getInputBlockSize()"><!-- --></A><H3>
getInputBlockSize</H3>
<PRE>
public int <B>getInputBlockSize</B>()</PRE>
<DL>
<DD>returns the largest size an input block can be.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>maximum size for an input block.</DL>
</DD>
</DL>
<HR>

<A NAME="getOutputBlockSize()"><!-- --></A><H3>
getOutputBlockSize</H3>
<PRE>
public int <B>getOutputBlockSize</B>()</PRE>
<DL>
<DD>returns the maximum size of the block produced by this cipher.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>maximum size of the output block produced by the cipher.</DL>
</DD>
</DL>
<HR>

<A NAME="processByte(byte)"><!-- --></A><H3>
processByte</H3>
<PRE>
public void <B>processByte</B>(byte&nbsp;in)</PRE>
<DL>
<DD>add another byte for processing.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>in</CODE> - the input byte.</DL>
</DD>
</DL>
<HR>

<A NAME="processBytes(byte[], int, int)"><!-- --></A><H3>
processBytes</H3>
<PRE>
public void <B>processBytes</B>(byte[]&nbsp;in,
                         int&nbsp;inOff,
                         int&nbsp;len)</PRE>
<DL>
<DD>add len bytes to the buffer for processing.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>in</CODE> - the input data<DD><CODE>inOff</CODE> - offset into the in array where the data starts<DD><CODE>len</CODE> - the length of the block to be processed.</DL>
</DD>
</DL>
<HR>

<A NAME="doFinal()"><!-- --></A><H3>
doFinal</H3>
<PRE>
public byte[] <B>doFinal</B>()
               throws <A HREF="../../../org/bouncycastle/crypto/InvalidCipherTextException.html" title="class in org.bouncycastle.crypto">InvalidCipherTextException</A></PRE>
<DL>
<DD>process the contents of the buffer using the underlying
 cipher.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the result of the encryption/decryption process on the
 buffer.
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../org/bouncycastle/crypto/InvalidCipherTextException.html" title="class in org.bouncycastle.crypto">InvalidCipherTextException</A></CODE> - if we are given a garbage block.</DL>
</DD>
</DL>
<HR>

<A NAME="reset()"><!-- --></A><H3>
reset</H3>
<PRE>
public void <B>reset</B>()</PRE>
<DL>
<DD>Reset the buffer and the underlying cipher.
<P>
<DD><DL>
</DL>
</DD>
</DL>
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<b>Bouncy Castle Cryptography Library 1.38</b></EM>
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