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📁 RSA算法的Java实现
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<B>构造方法详细信息</B></FONT></TH>
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<A NAME="RSA()"><!-- --></A><H3>
RSA</H3>
<PRE>
public <B>RSA</B>()</PRE>
<DL>
</DL>

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<B>方法详细信息</B></FONT></TH>
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<A NAME="getNumBit(int)"><!-- --></A><H3>
getNumBit</H3>
<PRE>
public int <B>getNumBit</B>(int&nbsp;n)</PRE>
<DL>
<DD>得到生成随机数的位数0~n,
<P>
<DD><DL>
<DT><B>参数:</B><DD><CODE>得到numBit输入的整数</CODE> - 
<DT><B>返回:</B><DD>返回numBit整数</DL>
</DD>
</DL>
<HR>

<A NAME="getPrimes(java.util.Random)"><!-- --></A><H3>
getPrimes</H3>
<PRE>
public java.math.BigInteger <B>getPrimes</B>(java.util.Random&nbsp;rnd)</PRE>
<DL>
<DD>得到随机的素数,
<P>
<DD><DL>
<DT><B>参数:</B><DD><CODE>传入随机数rnd</CODE> - 
<DT><B>返回:</B><DD>返回一个素数</DL>
</DD>
</DL>
<HR>

<A NAME="getN(java.math.BigInteger, java.math.BigInteger)"><!-- --></A><H3>
getN</H3>
<PRE>
public java.math.BigInteger <B>getN</B>(java.math.BigInteger&nbsp;p,
                                 java.math.BigInteger&nbsp;q)</PRE>
<DL>
<DD>通过P,Q计算n值
<P>
<DD><DL>
<DT><B>参数:</B><DD><CODE>一个素数p</CODE> - <DD><CODE>一个素数q</CODE> - 
<DT><B>返回:</B><DD>返回P*Q的值n</DL>
</DD>
</DL>
<HR>

<A NAME="getRan(java.math.BigInteger, java.math.BigInteger)"><!-- --></A><H3>
getRan</H3>
<PRE>
public java.math.BigInteger <B>getRan</B>(java.math.BigInteger&nbsp;p,
                                   java.math.BigInteger&nbsp;q)</PRE>
<DL>
<DD>通过P,Q计算ran值
<P>
<DD><DL>
<DT><B>参数:</B><DD><CODE>一个素数p</CODE> - <DD><CODE>一个素数q</CODE> - 
<DT><B>返回:</B><DD>返回(P-1)*(Q-1)的值ran</DL>
</DD>
</DL>
<HR>

<A NAME="getE(java.math.BigInteger)"><!-- --></A><H3>
getE</H3>
<PRE>
public java.math.BigInteger <B>getE</B>(java.math.BigInteger&nbsp;ran)</PRE>
<DL>
<DD>通过求出来的ran计算公钥e
<P>
<DD><DL>
<DT><B>参数:</B><DD><CODE>ran</CODE> - 
<DT><B>返回:</B><DD>返回公钥的值e</DL>
</DD>
</DL>
<HR>

<A NAME="getKey(java.math.BigInteger, java.math.BigInteger)"><!-- --></A><H3>
getKey</H3>
<PRE>
public java.math.BigInteger <B>getKey</B>(java.math.BigInteger&nbsp;e,
                                   java.math.BigInteger&nbsp;ran)</PRE>
<DL>
<DD>求密钥d,通过公式 d = e(负一次幂)mod ran
<P>
<DD><DL>
<DT><B>参数:</B><DD><CODE>公钥e</CODE> - <DD><CODE>OL函数ran</CODE> - 
<DT><B>返回:</B><DD>密钥d</DL>
</DD>
</DL>
<HR>

<A NAME="encodeRSA(byte[][], java.math.BigInteger, java.math.BigInteger)"><!-- --></A><H3>
encodeRSA</H3>
<PRE>
public static java.math.BigInteger[] <B>encodeRSA</B>(byte[][]&nbsp;em,
                                               java.math.BigInteger&nbsp;e,
                                               java.math.BigInteger&nbsp;n)</PRE>
<DL>
<DD>对明文进行加密,通过公式 密文=(明文(e次幂) mod m)
<P>
<DD><DL>
<DT><B>参数:</B><DD><CODE>明文em</CODE> - <DD><CODE>公钥e</CODE> - <DD><CODE>模数n</CODE> - 
<DT><B>返回:</B><DD>加密后的密文encodeM</DL>
</DD>
</DL>
<HR>

<A NAME="dencodeRSA(java.math.BigInteger[], java.math.BigInteger, java.math.BigInteger)"><!-- --></A><H3>
dencodeRSA</H3>
<PRE>
public static byte[][] <B>dencodeRSA</B>(java.math.BigInteger[]&nbsp;encodeM,
                                  java.math.BigInteger&nbsp;d,
                                  java.math.BigInteger&nbsp;n)</PRE>
<DL>
<DD>对密文进行解密,通过公式 明文 = (密文(d次幂)mod m)
<P>
<DD><DL>
<DT><B>参数:</B><DD><CODE>密文encodeM</CODE> - <DD><CODE>密钥d</CODE> - <DD><CODE>模数n</CODE> - 
<DT><B>返回:</B><DD>解密后的明文dencodeM</DL>
</DD>
</DL>
<HR>

<A NAME="byteToEm(byte[], int)"><!-- --></A><H3>
byteToEm</H3>
<PRE>
public static byte[][] <B>byteToEm</B>(byte[]&nbsp;arrayByte,
                                int&nbsp;numBytes)</PRE>
<DL>
<DD>将数组byte[]arrayByte,转化为二维数组
<P>
<DD><DL>
<DT><B>参数:</B><DD><CODE>arrayByte</CODE> - <DD><CODE>numBytes</CODE> - 
<DT><B>返回:</B><DD></DL>
</DD>
</DL>
<HR>

<A NAME="StringToByte(byte[][])"><!-- --></A><H3>
StringToByte</H3>
<PRE>
public static byte[] <B>StringToByte</B>(byte[][]&nbsp;arraySenS)</PRE>
<DL>
<DD>将二维数组转化为一维数组
<P>
<DD><DL>
<DT><B>参数:</B><DD><CODE>arraySenS</CODE> - 
<DT><B>返回:</B><DD></DL>
</DD>
</DL>
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