ASN1InputStream.html

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ASN1InputStream (Bouncy Castle Library 1.45 API Specification)
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org.bouncycastle.asn1</FONT>
<BR>
Class ASN1InputStream</H2>
<PRE>
java.lang.Object
  <IMG SRC="../../../resources/inherit.gif" ALT="extended by ">java.io.InputStream
      <IMG SRC="../../../resources/inherit.gif" ALT="extended by ">java.io.FilterInputStream
          <IMG SRC="../../../resources/inherit.gif" ALT="extended by "><B>org.bouncycastle.asn1.ASN1InputStream</B>
</PRE>
<DL>
<DT><B>All Implemented Interfaces:</B> <DD>java.io.Closeable, <A HREF="../../../org/bouncycastle/asn1/DERTags.html" title="interface in org.bouncycastle.asn1">DERTags</A></DD>
</DL>
<HR>
<DL>
<DT><PRE>public class <B>ASN1InputStream</B><DT>extends java.io.FilterInputStream<DT>implements <A HREF="../../../org/bouncycastle/asn1/DERTags.html" title="interface in org.bouncycastle.asn1">DERTags</A></DL>
</PRE>

<P>
a general purpose ASN.1 decoder - note: this class differs from the
 others in that it returns null after it has read the last object in
 the stream. If an ASN.1 NULL is encountered a DER/BER Null object is
 returned.
<P>

<P>
<HR>

<P>
<!-- =========== FIELD SUMMARY =========== -->

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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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&nbsp;<A NAME="fields_inherited_from_class_java.io.FilterInputStream"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TH ALIGN="left"><B>Fields inherited from class java.io.FilterInputStream</B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE>in</CODE></TD>
</TR>
</TABLE>
&nbsp;<A NAME="fields_inherited_from_class_org.bouncycastle.asn1.DERTags"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Fields inherited from interface org.bouncycastle.asn1.<A HREF="../../../org/bouncycastle/asn1/DERTags.html" title="interface in org.bouncycastle.asn1">DERTags</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../org/bouncycastle/asn1/DERTags.html#APPLICATION">APPLICATION</A>, <A HREF="../../../org/bouncycastle/asn1/DERTags.html#BIT_STRING">BIT_STRING</A>, <A HREF="../../../org/bouncycastle/asn1/DERTags.html#BMP_STRING">BMP_STRING</A>, <A HREF="../../../org/bouncycastle/asn1/DERTags.html#BOOLEAN">BOOLEAN</A>, <A HREF="../../../org/bouncycastle/asn1/DERTags.html#CONSTRUCTED">CONSTRUCTED</A>, <A HREF="../../../org/bouncycastle/asn1/DERTags.html#ENUMERATED">ENUMERATED</A>, <A HREF="../../../org/bouncycastle/asn1/DERTags.html#EXTERNAL">EXTERNAL</A>, <A HREF="../../../org/bouncycastle/asn1/DERTags.html#GENERAL_STRING">GENERAL_STRING</A>, <A HREF="../../../org/bouncycastle/asn1/DERTags.html#GENERALIZED_TIME">GENERALIZED_TIME</A>, <A HREF="../../../org/bouncycastle/asn1/DERTags.html#GRAPHIC_STRING">GRAPHIC_STRING</A>, <A HREF="../../../org/bouncycastle/asn1/DERTags.html#IA5_STRING">IA5_STRING</A>, <A HREF="../../../org/bouncycastle/asn1/DERTags.html#INTEGER">INTEGER</A>, <A HREF="../../../org/bouncycastle/asn1/DERTags.html#NULL">NULL</A>, <A HREF="../../../org/bouncycastle/asn1/DERTags.html#NUMERIC_STRING">NUMERIC_STRING</A>, <A HREF="../../../org/bouncycastle/asn1/DERTags.html#OBJECT_IDENTIFIER">OBJECT_IDENTIFIER</A>, <A HREF="../../../org/bouncycastle/asn1/DERTags.html#OCTET_STRING">OCTET_STRING</A>, <A HREF="../../../org/bouncycastle/asn1/DERTags.html#PRINTABLE_STRING">PRINTABLE_STRING</A>, <A HREF="../../../org/bouncycastle/asn1/DERTags.html#SEQUENCE">SEQUENCE</A>, <A HREF="../../../org/bouncycastle/asn1/DERTags.html#SEQUENCE_OF">SEQUENCE_OF</A>, <A HREF="../../../org/bouncycastle/asn1/DERTags.html#SET">SET</A>, <A HREF="../../../org/bouncycastle/asn1/DERTags.html#SET_OF">SET_OF</A>, <A HREF="../../../org/bouncycastle/asn1/DERTags.html#T61_STRING">T61_STRING</A>, <A HREF="../../../org/bouncycastle/asn1/DERTags.html#TAGGED">TAGGED</A>, <A HREF="../../../org/bouncycastle/asn1/DERTags.html#UNIVERSAL_STRING">UNIVERSAL_STRING</A>, <A HREF="../../../org/bouncycastle/asn1/DERTags.html#UTC_TIME">UTC_TIME</A>, <A HREF="../../../org/bouncycastle/asn1/DERTags.html#UTF8_STRING">UTF8_STRING</A>, <A HREF="../../../org/bouncycastle/asn1/DERTags.html#VIDEOTEX_STRING">VIDEOTEX_STRING</A>, <A HREF="../../../org/bouncycastle/asn1/DERTags.html#VISIBLE_STRING">VISIBLE_STRING</A></CODE></TD>
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<!-- ======== CONSTRUCTOR SUMMARY ======== -->

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<TD><CODE><B><A HREF="../../../org/bouncycastle/asn1/ASN1InputStream.html#ASN1InputStream(byte[])">ASN1InputStream</A></B>(byte[]&nbsp;input)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Create an ASN1InputStream based on the input byte array.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../org/bouncycastle/asn1/ASN1InputStream.html#ASN1InputStream(byte[], boolean)">ASN1InputStream</A></B>(byte[]&nbsp;input,
                boolean&nbsp;lazyEvaluate)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Create an ASN1InputStream based on the input byte array.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../org/bouncycastle/asn1/ASN1InputStream.html#ASN1InputStream(java.io.InputStream)">ASN1InputStream</A></B>(java.io.InputStream&nbsp;is)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../org/bouncycastle/asn1/ASN1InputStream.html#ASN1InputStream(java.io.InputStream, int)">ASN1InputStream</A></B>(java.io.InputStream&nbsp;input,
                int&nbsp;limit)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Create an ASN1InputStream where no DER object will be longer than limit.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../org/bouncycastle/asn1/ASN1InputStream.html#ASN1InputStream(java.io.InputStream, int, boolean)">ASN1InputStream</A></B>(java.io.InputStream&nbsp;input,
                int&nbsp;limit,
                boolean&nbsp;lazyEvaluate)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Create an ASN1InputStream where no DER object will be longer than limit, and constructed
 objects such as sequences will be parsed lazily.</TD>
</TR>
</TABLE>
&nbsp;
<!-- ========== METHOD SUMMARY =========== -->

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<B>Method Summary</B></FONT></TH>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;<A HREF="../../../org/bouncycastle/asn1/DERObject.html" title="class in org.bouncycastle.asn1">DERObject</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/bouncycastle/asn1/ASN1InputStream.html#buildObject(int, int, int)">buildObject</A></B>(int&nbsp;tag,
            int&nbsp;tagNo,
            int&nbsp;length)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;build an object given its tag and the number of bytes to construct it from.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/bouncycastle/asn1/ASN1InputStream.html#readFully(byte[])">readFully</A></B>(byte[]&nbsp;bytes)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/bouncycastle/asn1/ASN1InputStream.html#readLength()">readLength</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/bouncycastle/asn1/DERObject.html" title="class in org.bouncycastle.asn1">DERObject</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/bouncycastle/asn1/ASN1InputStream.html#readObject()">readObject</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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&nbsp;<A NAME="methods_inherited_from_class_java.io.FilterInputStream"><!-- --></A>
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<TH ALIGN="left"><B>Methods inherited from class java.io.FilterInputStream</B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE>available, close, mark, markSupported, read, read, read, reset, skip</CODE></TD>
</TR>
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&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
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<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>
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&nbsp;
<P>

<!-- ========= CONSTRUCTOR DETAIL ======== -->

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<B>Constructor Detail</B></FONT></TH>
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<A NAME="ASN1InputStream(java.io.InputStream)"><!-- --></A><H3>
ASN1InputStream</H3>
<PRE>
public <B>ASN1InputStream</B>(java.io.InputStream&nbsp;is)</PRE>
<DL>
</DL>
<HR>

<A NAME="ASN1InputStream(byte[])"><!-- --></A><H3>
ASN1InputStream</H3>
<PRE>
public <B>ASN1InputStream</B>(byte[]&nbsp;input)</PRE>
<DL>
<DD>Create an ASN1InputStream based on the input byte array. The length of DER objects in
 the stream is automatically limited to the length of the input array.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>input</CODE> - array containing ASN.1 encoded data.</DL>
</DL>
<HR>

<A NAME="ASN1InputStream(byte[], boolean)"><!-- --></A><H3>
ASN1InputStream</H3>
<PRE>
public <B>ASN1InputStream</B>(byte[]&nbsp;input,
                       boolean&nbsp;lazyEvaluate)</PRE>
<DL>
<DD>Create an ASN1InputStream based on the input byte array. The length of DER objects in
 the stream is automatically limited to the length of the input array.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>input</CODE> - array containing ASN.1 encoded data.<DD><CODE>lazyEvaluate</CODE> - true if parsing inside constructed objects can be delayed.</DL>
</DL>
<HR>

<A NAME="ASN1InputStream(java.io.InputStream, int)"><!-- --></A><H3>
ASN1InputStream</H3>
<PRE>
public <B>ASN1InputStream</B>(java.io.InputStream&nbsp;input,
                       int&nbsp;limit)</PRE>
<DL>
<DD>Create an ASN1InputStream where no DER object will be longer than limit.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>input</CODE> - stream containing ASN.1 encoded data.<DD><CODE>limit</CODE> - maximum size of a DER encoded object.</DL>
</DL>
<HR>

<A NAME="ASN1InputStream(java.io.InputStream, int, boolean)"><!-- --></A><H3>
ASN1InputStream</H3>
<PRE>
public <B>ASN1InputStream</B>(java.io.InputStream&nbsp;input,
                       int&nbsp;limit,
                       boolean&nbsp;lazyEvaluate)</PRE>
<DL>
<DD>Create an ASN1InputStream where no DER object will be longer than limit, and constructed
 objects such as sequences will be parsed lazily.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>input</CODE> - stream containing ASN.1 encoded data.<DD><CODE>limit</CODE> - maximum size of a DER encoded object.<DD><CODE>lazyEvaluate</CODE> - true if parsing inside constructed objects can be delayed.</DL>
</DL>

<!-- ============ METHOD DETAIL ========== -->

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<A NAME="readLength()"><!-- --></A><H3>
readLength</H3>
<PRE>
protected int <B>readLength</B>()
                  throws java.io.IOException</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="readFully(byte[])"><!-- --></A><H3>
readFully</H3>
<PRE>
protected void <B>readFully</B>(byte[]&nbsp;bytes)
                  throws java.io.IOException</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="buildObject(int, int, int)"><!-- --></A><H3>
buildObject</H3>
<PRE>
protected <A HREF="../../../org/bouncycastle/asn1/DERObject.html" title="class in org.bouncycastle.asn1">DERObject</A> <B>buildObject</B>(int&nbsp;tag,
                                int&nbsp;tagNo,
                                int&nbsp;length)
                         throws java.io.IOException</PRE>
<DL>
<DD>build an object given its tag and the number of bytes to construct it from.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="readObject()"><!-- --></A><H3>
readObject</H3>
<PRE>
public <A HREF="../../../org/bouncycastle/asn1/DERObject.html" title="class in org.bouncycastle.asn1">DERObject</A> <B>readObject</B>()
                     throws java.io.IOException</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE>java.io.IOException</CODE></DL>
</DD>
</DL>
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<b>Bouncy Castle Cryptography Library 1.45</b></EM>
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