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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc (build 1.5.0_02) on Wed Mar 22 19:19:09 PST 2006 --><TITLE>DSAKey (Java Card API and Subsets)</TITLE><META NAME="keywords" CONTENT="javacard.security.DSAKey interface"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="DSAKey (Java Card API and Subsets)";}</SCRIPT><NOSCRIPT></NOSCRIPT></HEAD><BODY BGCOLOR="white" onload="windowTitle();"><!-- ========= START OF TOP NAVBAR ======= --><A NAME="navbar_top"><!-- --></A><A HREF="#skip-navbar_top" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/DSAKey.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM><b>Java Card </b><br><font size="-1">v2.2.2</font></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../javacard/security/DESKey.html" title="interface in javacard.security"><B>PREV CLASS</B></A> <A HREF="../../javacard/security/DSAPrivateKey.html" title="interface in javacard.security"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../index.html?javacard/security/DSAKey.html" target="_top"><B>FRAMES</B></A> <A HREF="DSAKey.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT> <A HREF="../../allclasses-noframe.html"><B>All Classes</B></A></NOSCRIPT></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | FIELD | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | CONSTR | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">javacard.security</FONT><BR>Interface DSAKey</H2><DL><DT><B>All Known Subinterfaces:</B> <DD><A HREF="../../javacard/security/DSAPrivateKey.html" title="interface in javacard.security">DSAPrivateKey</A>, <A HREF="../../javacard/security/DSAPublicKey.html" title="interface in javacard.security">DSAPublicKey</A></DD></DL><HR><DL><DT><PRE>public interface <B>DSAKey</B></DL></PRE><P>The </code>DSAKey</code> interface is the base interface for the DSA algorithm's private and public key implementations. A DSA private key implementation must also implement the <code>DSAPrivateKey</code> interface methods. A DSA public key implementation must also implement the <code>DSAPublicKey</code> interface methods. <p>When all four components of the key (X or Y,P,Q,G) are set, the key is initialized and ready for use. <p><P><P><DL><DT><B>See Also:</B><DD><A HREF="../../javacard/security/DSAPublicKey.html" title="interface in javacard.security"><CODE>DSAPublicKey</CODE></A>, <A HREF="../../javacard/security/DSAPrivateKey.html" title="interface in javacard.security"><CODE>DSAPrivateKey</CODE></A>, <A HREF="../../javacard/security/KeyBuilder.html" title="class in javacard.security"><CODE>KeyBuilder</CODE></A>, <A HREF="../../javacard/security/Signature.html" title="class in javacard.security"><CODE>Signature</CODE></A>, <A HREF="../../javacardx/crypto/KeyEncryption.html" title="interface in javacardx.crypto"><CODE>javacardx.crypto.KeyEncryption</CODE></A></DL><HR><P><!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Method Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> short</CODE></FONT></TD><TD><CODE><B><A HREF="../../javacard/security/DSAKey.html#getG(byte[], short)">getG</A></B>(byte[] buffer, short offset)</CODE><BR> Returns the base parameter value of the key in plain text.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> short</CODE></FONT></TD><TD><CODE><B><A HREF="../../javacard/security/DSAKey.html#getP(byte[], short)">getP</A></B>(byte[] buffer, short offset)</CODE><BR> Returns the prime parameter value of the key in plain text.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> short</CODE></FONT></TD><TD><CODE><B><A HREF="../../javacard/security/DSAKey.html#getQ(byte[], short)">getQ</A></B>(byte[] buffer, short offset)</CODE><BR> Returns the subprime parameter value of the key in plain text.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../javacard/security/DSAKey.html#setG(byte[], short, short)">setG</A></B>(byte[] buffer, short offset, short length)</CODE><BR> Sets the base parameter value of the key.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../javacard/security/DSAKey.html#setP(byte[], short, short)">setP</A></B>(byte[] buffer, short offset, short length)</CODE><BR> Sets the prime parameter value of the key.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../javacard/security/DSAKey.html#setQ(byte[], short, short)">setQ</A></B>(byte[] buffer, short offset, short length)</CODE><BR> Sets the subprime parameter value of the key.</TD></TR></TABLE> <P><!-- ============ METHOD DETAIL ========== --><A NAME="method_detail"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"><B>Method Detail</B></FONT></TH></TR></TABLE><A NAME="setP(byte[], short, short)"><!-- --></A><H3>setP</H3><PRE>void <B>setP</B>(byte[] buffer, short offset, short length) throws <A HREF="../../javacard/security/CryptoException.html" title="class in javacard.security">CryptoException</A></PRE><DL><DD>Sets the prime parameter value of the key.⌨️ 快捷键说明
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