rsakey.html

jxta的api库

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<A NAME="getSize()"><!-- --></A><H3>
getSize</H3>
<PRE>
public short <B>getSize</B>()</PRE>
<DL>
<DD>get Key length in bits
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<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../jxta/security/cipher/Key.html#getSize()">getSize</A></CODE> in interface <CODE><A HREF="../../../../jxta/security/cipher/Key.html" title="interface in jxta.security.cipher">Key</A></CODE></DL>
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<A NAME="getLength()"><!-- --></A><H3>
getLength</H3>
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public int <B>getLength</B>()</PRE>
<DL>
<DD>get Key length in bytes
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<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../jxta/security/cipher/Key.html#getLength()">getLength</A></CODE> in interface <CODE><A HREF="../../../../jxta/security/cipher/Key.html" title="interface in jxta.security.cipher">Key</A></CODE></DL>
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<A NAME="getType()"><!-- --></A><H3>
getType</H3>
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public byte <B>getType</B>()</PRE>
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<DD>Get key type
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<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../jxta/security/cipher/Key.html#getType()">getType</A></CODE> in interface <CODE><A HREF="../../../../jxta/security/cipher/Key.html" title="interface in jxta.security.cipher">Key</A></CODE></DL>
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<A NAME="equals(jxta.security.publickey.RSAPrivateKey)"><!-- --></A><H3>
equals</H3>
<PRE>
public boolean <B>equals</B>(<A HREF="../../../../jxta/security/publickey/RSAPrivateKey.html" title="interface in jxta.security.publickey">RSAPrivateKey</A>&nbsp;key)</PRE>
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<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../jxta/security/publickey/RSAPrivateKey.html#equals(jxta.security.publickey.RSAPrivateKey)">equals</A></CODE> in interface <CODE><A HREF="../../../../jxta/security/publickey/RSAPrivateKey.html" title="interface in jxta.security.publickey">RSAPrivateKey</A></CODE></DL>
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<A NAME="equals(jxta.security.publickey.RSAPublicKey)"><!-- --></A><H3>
equals</H3>
<PRE>
public boolean <B>equals</B>(<A HREF="../../../../jxta/security/publickey/RSAPublicKey.html" title="interface in jxta.security.publickey">RSAPublicKey</A>&nbsp;key)</PRE>
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<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../jxta/security/publickey/RSAPublicKey.html#equals(jxta.security.publickey.RSAPublicKey)">equals</A></CODE> in interface <CODE><A HREF="../../../../jxta/security/publickey/RSAPublicKey.html" title="interface in jxta.security.publickey">RSAPublicKey</A></CODE></DL>
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<A NAME="RSAEquals(jxta.security.impl.publickey.RSAKey, byte)"><!-- --></A><H3>
RSAEquals</H3>
<PRE>
public boolean <B>RSAEquals</B>(<A HREF="../../../../jxta/security/impl/publickey/RSAKey.html" title="class in jxta.security.impl.publickey">RSAKey</A>&nbsp;k,
                         byte&nbsp;type)</PRE>
<DL>
<DD>Return true if key is equal to "this" key. Otherwise false.
 Here we can compare key type, lengths of the exponents and moduli,
 and finally the byte arrays themselves.
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<A NAME="getPublicExponentLength()"><!-- --></A><H3>
getPublicExponentLength</H3>
<PRE>
public int <B>getPublicExponentLength</B>()</PRE>
<DL>
<DD>get public exponent length
   e
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<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../jxta/security/publickey/RSAPublicKey.html#getPublicExponentLength()">getPublicExponentLength</A></CODE> in interface <CODE><A HREF="../../../../jxta/security/publickey/RSAPublicKey.html" title="interface in jxta.security.publickey">RSAPublicKey</A></CODE></DL>
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<A NAME="getPrivateExponentLength()"><!-- --></A><H3>
getPrivateExponentLength</H3>
<PRE>
public int <B>getPrivateExponentLength</B>()</PRE>
<DL>
<DD>get private exponent length
  d = 1/e mod (p-1)(q-1)
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../jxta/security/publickey/RSAPrivateKey.html#getPrivateExponentLength()">getPrivateExponentLength</A></CODE> in interface <CODE><A HREF="../../../../jxta/security/publickey/RSAPrivateKey.html" title="interface in jxta.security.publickey">RSAPrivateKey</A></CODE></DL>
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<A NAME="getModulusLength()"><!-- --></A><H3>
getModulusLength</H3>
<PRE>
public int <B>getModulusLength</B>()</PRE>
<DL>
<DD>get modulus length, n
 Note: This may exceed the keysize in bytes by one
       byte. This is because big integer arithmetic
       will prepend a (byte)0x00 if the sign bit is
       set. Similarly for p, and q.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../jxta/security/publickey/RSAPublicKey.html#getModulusLength()">getModulusLength</A></CODE> in interface <CODE><A HREF="../../../../jxta/security/publickey/RSAPublicKey.html" title="interface in jxta.security.publickey">RSAPublicKey</A></CODE></DL>
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<A NAME="getPrimePLength()"><!-- --></A><H3>
getPrimePLength</H3>
<PRE>
public int <B>getPrimePLength</B>()</PRE>
<DL>
<DD>Prime p
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../jxta/security/publickey/RSAPrivateKey.html#getPrimePLength()">getPrimePLength</A></CODE> in interface <CODE><A HREF="../../../../jxta/security/publickey/RSAPrivateKey.html" title="interface in jxta.security.publickey">RSAPrivateKey</A></CODE></DL>
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<A NAME="getPrimeQLength()"><!-- --></A><H3>
getPrimeQLength</H3>
<PRE>
public int <B>getPrimeQLength</B>()</PRE>
<DL>
<DD>Prime q
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../jxta/security/publickey/RSAPrivateKey.html#getPrimeQLength()">getPrimeQLength</A></CODE> in interface <CODE><A HREF="../../../../jxta/security/publickey/RSAPrivateKey.html" title="interface in jxta.security.publickey">RSAPrivateKey</A></CODE></DL>
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<A NAME="getPrimeExponentPLength()"><!-- --></A><H3>
getPrimeExponentPLength</H3>
<PRE>
public int <B>getPrimeExponentPLength</B>()</PRE>
<DL>
<DD>prime exponent, d mod (p-1)
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<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../jxta/security/publickey/RSAPrivateKey.html#getPrimeExponentPLength()">getPrimeExponentPLength</A></CODE> in interface <CODE><A HREF="../../../../jxta/security/publickey/RSAPrivateKey.html" title="interface in jxta.security.publickey">RSAPrivateKey</A></CODE></DL>
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<A NAME="getPrimeExponentQLength()"><!-- --></A><H3>
getPrimeExponentQLength</H3>
<PRE>
public int <B>getPrimeExponentQLength</B>()</PRE>
<DL>
<DD>prime exponent, d mod (q-1)
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../jxta/security/publickey/RSAPrivateKey.html#getPrimeExponentQLength()">getPrimeExponentQLength</A></CODE> in interface <CODE><A HREF="../../../../jxta/security/publickey/RSAPrivateKey.html" title="interface in jxta.security.publickey">RSAPrivateKey</A></CODE></DL>
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<A NAME="getCrtCoefficientLength()"><!-- --></A><H3>
getCrtCoefficientLength</H3>
<PRE>
public int <B>getCrtCoefficientLength</B>()</PRE>
<DL>
<DD>Chinese remainder theorem coefficient
     1/q mod p
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../jxta/security/publickey/RSAPrivateKey.html#getCrtCoefficientLength()">getCrtCoefficientLength</A></CODE> in interface <CODE><A HREF="../../../../jxta/security/publickey/RSAPrivateKey.html" title="interface in jxta.security.publickey">RSAPrivateKey</A></CODE></DL>
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<A NAME="setPublicExponent(byte[], int, int)"><!-- --></A><H3>
setPublicExponent</H3>
<PRE>
public void <B>setPublicExponent</B>(byte[]&nbsp;exp,
                              int&nbsp;offset,
                              int&nbsp;len)
                       throws <A HREF="../../../../jxta/security/exceptions/CryptoException.html" title="class in jxta.security.exceptions">CryptoException</A></PRE>
<DL>
<DD>Store the exponent as restricted by our size.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../jxta/security/publickey/RSAPublicKey.html#setPublicExponent(byte[], int, int)">setPublicExponent</A></CODE> in interface <CODE><A HREF="../../../../jxta/security/publickey/RSAPublicKey.html" title="interface in jxta.security.publickey">RSAPublicKey</A></CODE></DL>
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<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../jxta/security/exceptions/CryptoException.html" title="class in jxta.security.exceptions">CryptoException</A></CODE></DL>
</DD>
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<A NAME="setPrivateExponent(byte[], int, int)"><!-- --></A><H3>
setPrivateExponent</H3>
<PRE>
public void <B>setPrivateExponent</B>(byte[]&nbsp;exp,
                               int&nbsp;offset,
                               int&nbsp;len)
                        throws <A HREF="../../../../jxta/security/exceptions/CryptoException.html" title="class in jxta.security.exceptions">CryptoException</A></PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../jxta/security/publickey/RSAPrivateKey.html" title="interface in jxta.security.publickey">RSAPrivateKey</A></CODE></B></DD>
<DD>Given two primes, p and q, and [e,(p-1)(q-1)] = 1, n = pq
      Private Key: d = 1/e mod n
                   c = m**d mod n, d is exponent, n modulus
      We also have methods to set parameters for the Chinese
      remainder theorem algorithm
         d mod p-1, d mod q-1, 1/q mod p
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../jxta/security/publickey/RSAPrivateKey.html#setPrivateExponent(byte[], int, int)">setPrivateExponent</A></CODE> in interface <CODE><A HREF="../../../../jxta/security/publickey/RSAPrivateKey.html" title="interface in jxta.security.publickey">RSAPrivateKey</A></CODE></DL>
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<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../jxta/security/exceptions/CryptoException.html" title="class in jxta.security.exceptions">CryptoException</A></CODE></DL>
</DD>
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<A NAME="setModulus(byte[], int, int)"><!-- --></A><H3>
setModulus</H3>
<PRE>
public void <B>setModulus</B>(byte[]&nbsp;mod,
                       int&nbsp;offset,
                       int&nbsp;len)
                throws <A HREF="../../../../jxta/security/exceptions/CryptoException.html" title="class in jxta.security.exceptions">CryptoException</A></PRE>
<DL>
<DD>Store the modulus as restricted by our size.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../jxta/security/publickey/RSAPublicKey.html#setModulus(byte[], int, int)">setModulus</A></CODE> in interface <CODE><A HREF="../../../../jxta/security/publickey/RSAPublicKey.html" title="interface in jxta.security.publickey">RSAPublicKey</A></CODE></DL>
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