cast5engine.html

java非对称加密的源代码

<A NAME="processBlock(byte[], int, byte[], int)"><!-- --></A><H3>
processBlock</H3>
<PRE>
public int <B>processBlock</B>(byte[]&nbsp;in,
                        int&nbsp;inOff,
                        byte[]&nbsp;out,
                        int&nbsp;outOff)</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/bouncycastle/crypto/BlockCipher.html#processBlock(byte[], int, byte[], int)">BlockCipher</A></CODE></B></DD>
<DD>Process one block of input from the array in and write it to
 the out array.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/bouncycastle/crypto/BlockCipher.html#processBlock(byte[], int, byte[], int)">processBlock</A></CODE> in interface <CODE><A HREF="../../../../org/bouncycastle/crypto/BlockCipher.html" title="interface in org.bouncycastle.crypto">BlockCipher</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>in</CODE> - the array containing the input data.<DD><CODE>inOff</CODE> - offset into the in array the data starts at.<DD><CODE>out</CODE> - the array the output data will be copied into.<DD><CODE>outOff</CODE> - the offset into the out array the output will start at.
<DT><B>Returns:</B><DD>the number of bytes processed and produced.</DL>
</DD>
</DL>
<HR>

<A NAME="reset()"><!-- --></A><H3>
reset</H3>
<PRE>
public void <B>reset</B>()</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/bouncycastle/crypto/BlockCipher.html#reset()">BlockCipher</A></CODE></B></DD>
<DD>Reset the cipher. After resetting the cipher is in the same state
 as it was after the last init (if there was one).
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/bouncycastle/crypto/BlockCipher.html#reset()">reset</A></CODE> in interface <CODE><A HREF="../../../../org/bouncycastle/crypto/BlockCipher.html" title="interface in org.bouncycastle.crypto">BlockCipher</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getBlockSize()"><!-- --></A><H3>
getBlockSize</H3>
<PRE>
public int <B>getBlockSize</B>()</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/bouncycastle/crypto/BlockCipher.html#getBlockSize()">BlockCipher</A></CODE></B></DD>
<DD>Return the block size for this cipher (in bytes).
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/bouncycastle/crypto/BlockCipher.html#getBlockSize()">getBlockSize</A></CODE> in interface <CODE><A HREF="../../../../org/bouncycastle/crypto/BlockCipher.html" title="interface in org.bouncycastle.crypto">BlockCipher</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the block size for this cipher in bytes.</DL>
</DD>
</DL>
<HR>

<A NAME="setKey(byte[])"><!-- --></A><H3>
setKey</H3>
<PRE>
protected void <B>setKey</B>(byte[]&nbsp;key)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="encryptBlock(byte[], int, byte[], int)"><!-- --></A><H3>
encryptBlock</H3>
<PRE>
protected int <B>encryptBlock</B>(byte[]&nbsp;src,
                           int&nbsp;srcIndex,
                           byte[]&nbsp;dst,
                           int&nbsp;dstIndex)</PRE>
<DL>
<DD>Encrypt the given input starting at the given offset and place
 the result in the provided buffer starting at the given offset.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>src</CODE> - The plaintext buffer<DD><CODE>srcIndex</CODE> - An offset into src<DD><CODE>dst</CODE> - The ciphertext buffer<DD><CODE>dstIndex</CODE> - An offset into dst</DL>
</DD>
</DL>
<HR>

<A NAME="decryptBlock(byte[], int, byte[], int)"><!-- --></A><H3>
decryptBlock</H3>
<PRE>
protected int <B>decryptBlock</B>(byte[]&nbsp;src,
                           int&nbsp;srcIndex,
                           byte[]&nbsp;dst,
                           int&nbsp;dstIndex)</PRE>
<DL>
<DD>Decrypt the given input starting at the given offset and place
 the result in the provided buffer starting at the given offset.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>src</CODE> - The plaintext buffer<DD><CODE>srcIndex</CODE> - An offset into src<DD><CODE>dst</CODE> - The ciphertext buffer<DD><CODE>dstIndex</CODE> - An offset into dst</DL>
</DD>
</DL>
<HR>

<A NAME="F1(int, int, int)"><!-- --></A><H3>
F1</H3>
<PRE>
protected final int <B>F1</B>(int&nbsp;D,
                       int&nbsp;Kmi,
                       int&nbsp;Kri)</PRE>
<DL>
<DD>The first of the three processing functions for the
 encryption and decryption.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>D</CODE> - the input to be processed<DD><CODE>Kmi</CODE> - the mask to be used from Km[n]<DD><CODE>Kri</CODE> - the rotation value to be used</DL>
</DD>
</DL>
<HR>

<A NAME="F2(int, int, int)"><!-- --></A><H3>
F2</H3>
<PRE>
protected final int <B>F2</B>(int&nbsp;D,
                       int&nbsp;Kmi,
                       int&nbsp;Kri)</PRE>
<DL>
<DD>The second of the three processing functions for the
 encryption and decryption.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>D</CODE> - the input to be processed<DD><CODE>Kmi</CODE> - the mask to be used from Km[n]<DD><CODE>Kri</CODE> - the rotation value to be used</DL>
</DD>
</DL>
<HR>

<A NAME="F3(int, int, int)"><!-- --></A><H3>
F3</H3>
<PRE>
protected final int <B>F3</B>(int&nbsp;D,
                       int&nbsp;Kmi,
                       int&nbsp;Kri)</PRE>
<DL>
<DD>The third of the three processing functions for the
 encryption and decryption.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>D</CODE> - the input to be processed<DD><CODE>Kmi</CODE> - the mask to be used from Km[n]<DD><CODE>Kri</CODE> - the rotation value to be used</DL>
</DD>
</DL>
<HR>

<A NAME="CAST_Encipher(int, int, int[])"><!-- --></A><H3>
CAST_Encipher</H3>
<PRE>
protected final void <B>CAST_Encipher</B>(int&nbsp;L0,
                                   int&nbsp;R0,
                                   int[]&nbsp;result)</PRE>
<DL>
<DD>Does the 16 rounds to encrypt the block.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>L0</CODE> - the LH-32bits of the plaintext block<DD><CODE>R0</CODE> - the RH-32bits of the plaintext block</DL>
</DD>
</DL>
<HR>

<A NAME="CAST_Decipher(int, int, int[])"><!-- --></A><H3>
CAST_Decipher</H3>
<PRE>
protected final void <B>CAST_Decipher</B>(int&nbsp;L16,
                                   int&nbsp;R16,
                                   int[]&nbsp;result)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="Bits32ToInts(int, int[], int)"><!-- --></A><H3>
Bits32ToInts</H3>
<PRE>
protected final void <B>Bits32ToInts</B>(int&nbsp;in,
                                  int[]&nbsp;b,
                                  int&nbsp;offset)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="IntsTo32bits(int[], int)"><!-- --></A><H3>
IntsTo32bits</H3>
<PRE>
protected final int <B>IntsTo32bits</B>(int[]&nbsp;b,
                                 int&nbsp;i)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="Bits32ToBytes(int, byte[], int)"><!-- --></A><H3>
Bits32ToBytes</H3>
<PRE>
protected final void <B>Bits32ToBytes</B>(int&nbsp;in,
                                   byte[]&nbsp;b,
                                   int&nbsp;offset)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="BytesTo32bits(byte[], int)"><!-- --></A><H3>
BytesTo32bits</H3>
<PRE>
protected final int <B>BytesTo32bits</B>(byte[]&nbsp;b,
                                  int&nbsp;i)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
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