📄 paddedbufferedblockcipher.html
字号:
<!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_08) on Wed Nov 07 10:29:40 EST 2007 --><TITLE>PaddedBufferedBlockCipher (Bouncy Castle Library 1.38 API Specification)</TITLE><META NAME="keywords" CONTENT="org.bouncycastle.crypto.paddings.PaddedBufferedBlockCipher class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="PaddedBufferedBlockCipher (Bouncy Castle Library 1.38 API Specification)";}</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="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>Bouncy Castle Cryptography Library 1.38</b></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../org/bouncycastle/crypto/paddings/ISO7816d4Padding.html" title="class in org.bouncycastle.crypto.paddings"><B>PREV CLASS</B></A> <A HREF="../../../../org/bouncycastle/crypto/paddings/PKCS7Padding.html" title="class in org.bouncycastle.crypto.paddings"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../index.html?org/bouncycastle/crypto/paddings/PaddedBufferedBlockCipher.html" target="_top"><B>FRAMES</B></A> <A HREF="PaddedBufferedBlockCipher.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 | <A HREF="#fields_inherited_from_class_org.bouncycastle.crypto.BufferedBlockCipher">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <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">org.bouncycastle.crypto.paddings</FONT><BR>Class PaddedBufferedBlockCipher</H2><PRE>java.lang.Object <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../org/bouncycastle/crypto/BufferedBlockCipher.html" title="class in org.bouncycastle.crypto">org.bouncycastle.crypto.BufferedBlockCipher</A> <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>org.bouncycastle.crypto.paddings.PaddedBufferedBlockCipher</B></PRE><HR><DL><DT><PRE>public class <B>PaddedBufferedBlockCipher</B><DT>extends <A HREF="../../../../org/bouncycastle/crypto/BufferedBlockCipher.html" title="class in org.bouncycastle.crypto">BufferedBlockCipher</A></DL></PRE><P>A wrapper class that allows block ciphers to be used to process data in a piecemeal fashion with padding. The PaddedBufferedBlockCipher outputs a block only when the buffer is full and more data is being added, or on a doFinal (unless the current block in the buffer is a pad block). The default padding mechanism used is the one outlined in PKCS5/PKCS7.<P><P><HR><P><!-- =========== FIELD SUMMARY =========== --><A NAME="field_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>Field Summary</B></FONT></TH></TR></TABLE> <A NAME="fields_inherited_from_class_org.bouncycastle.crypto.BufferedBlockCipher"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TH ALIGN="left"><B>Fields inherited from class org.bouncycastle.crypto.<A HREF="../../../../org/bouncycastle/crypto/BufferedBlockCipher.html" title="class in org.bouncycastle.crypto">BufferedBlockCipher</A></B></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../../org/bouncycastle/crypto/BufferedBlockCipher.html#buf">buf</A>, <A HREF="../../../../org/bouncycastle/crypto/BufferedBlockCipher.html#bufOff">bufOff</A>, <A HREF="../../../../org/bouncycastle/crypto/BufferedBlockCipher.html#cipher">cipher</A>, <A HREF="../../../../org/bouncycastle/crypto/BufferedBlockCipher.html#forEncryption">forEncryption</A>, <A HREF="../../../../org/bouncycastle/crypto/BufferedBlockCipher.html#partialBlockOkay">partialBlockOkay</A>, <A HREF="../../../../org/bouncycastle/crypto/BufferedBlockCipher.html#pgpCFB">pgpCFB</A></CODE></TD></TR></TABLE> <!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_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>Constructor Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../org/bouncycastle/crypto/paddings/PaddedBufferedBlockCipher.html#PaddedBufferedBlockCipher(org.bouncycastle.crypto.BlockCipher)">PaddedBufferedBlockCipher</A></B>(<A HREF="../../../../org/bouncycastle/crypto/BlockCipher.html" title="interface in org.bouncycastle.crypto">BlockCipher</A> cipher)</CODE><BR> Create a buffered block cipher PKCS7 padding</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../org/bouncycastle/crypto/paddings/PaddedBufferedBlockCipher.html#PaddedBufferedBlockCipher(org.bouncycastle.crypto.BlockCipher, org.bouncycastle.crypto.paddings.BlockCipherPadding)">PaddedBufferedBlockCipher</A></B>(<A HREF="../../../../org/bouncycastle/crypto/BlockCipher.html" title="interface in org.bouncycastle.crypto">BlockCipher</A> cipher, <A HREF="../../../../org/bouncycastle/crypto/paddings/BlockCipherPadding.html" title="interface in org.bouncycastle.crypto.paddings">BlockCipherPadding</A> padding)</CODE><BR> Create a buffered block cipher with the desired padding.</TD></TR></TABLE> <!-- ========== 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> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/bouncycastle/crypto/paddings/PaddedBufferedBlockCipher.html#doFinal(byte[], int)">doFinal</A></B>(byte[] out, int outOff)</CODE><BR> Process the last block in the buffer.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/bouncycastle/crypto/paddings/PaddedBufferedBlockCipher.html#getOutputSize(int)">getOutputSize</A></B>(int len)</CODE><BR> return the minimum size of the output buffer required for an update plus a doFinal with an input of len bytes.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/bouncycastle/crypto/paddings/PaddedBufferedBlockCipher.html#getUpdateOutputSize(int)">getUpdateOutputSize</A></B>(int len)</CODE><BR> return the size of the output buffer required for an update an input of len bytes.</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="../../../../org/bouncycastle/crypto/paddings/PaddedBufferedBlockCipher.html#init(boolean, org.bouncycastle.crypto.CipherParameters)">init</A></B>(boolean forEncryption, <A HREF="../../../../org/bouncycastle/crypto/CipherParameters.html" title="interface in org.bouncycastle.crypto">CipherParameters</A> params)</CODE><BR> initialise the cipher.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/bouncycastle/crypto/paddings/PaddedBufferedBlockCipher.html#processByte(byte, byte[], int)">processByte</A></B>(byte in, byte[] out, int outOff)</CODE><BR> process a single byte, producing an output block if neccessary.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/bouncycastle/crypto/paddings/PaddedBufferedBlockCipher.html#processBytes(byte[], int, int, byte[], int)">processBytes</A></B>(byte[] in, int inOff, int len, byte[] out, int outOff)</CODE><BR> process an array of bytes, producing output if necessary.</TD></TR></TABLE> <A NAME="methods_inherited_from_class_org.bouncycastle.crypto.BufferedBlockCipher"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TH ALIGN="left"><B>Methods inherited from class org.bouncycastle.crypto.<A HREF="../../../../org/bouncycastle/crypto/BufferedBlockCipher.html" title="class in org.bouncycastle.crypto">BufferedBlockCipher</A></B></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../../org/bouncycastle/crypto/BufferedBlockCipher.html#getBlockSize()">getBlockSize</A>, <A HREF="../../../../org/bouncycastle/crypto/BufferedBlockCipher.html#getUnderlyingCipher()">getUnderlyingCipher</A>, <A HREF="../../../../org/bouncycastle/crypto/BufferedBlockCipher.html#reset()">reset</A></CODE></TD></TR></TABLE> <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD></TR></TABLE> <P><!-- ========= CONSTRUCTOR DETAIL ======== -->⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -