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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"><title>Crypto++: asn.h Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.5.2 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="namespaces.html"><span>Namespaces</span></a></li> <li><a href="classes.html"><span>Classes</span></a></li> <li class="current"><a href="files.html"><span>Files</span></a></li> </ul></div><div class="tabs"> <ul> <li><a href="files.html"><span>File List</span></a></li> <li><a href="globals.html"><span>File Members</span></a></li> </ul></div><h1>asn.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef CRYPTOPP_ASN_H</span><a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define CRYPTOPP_ASN_H</span><a name="l00003"></a>00003 <span class="preprocessor"></span><a name="l00004"></a>00004 <span class="preprocessor">#include "filters.h"</span><a name="l00005"></a>00005 <span class="preprocessor">#include "queue.h"</span><a name="l00006"></a>00006 <span class="preprocessor">#include <vector></span><a name="l00007"></a>00007 <a name="l00008"></a>00008 NAMESPACE_BEGIN(CryptoPP)<a name="l00009"></a>00009 <a name="l00010"></a>00010 <span class="comment">// these tags and flags are not complete</span><a name="l00011"></a>00011 enum ASNTag<a name="l00012"></a>00012 {<a name="l00013"></a>00013 BOOLEAN = 0x01,<a name="l00014"></a>00014 INTEGER = 0x02,<a name="l00015"></a>00015 BIT_STRING = 0x03,<a name="l00016"></a>00016 OCTET_STRING = 0x04,<a name="l00017"></a>00017 TAG_NULL = 0x05,<a name="l00018"></a>00018 OBJECT_IDENTIFIER = 0x06,<a name="l00019"></a>00019 OBJECT_DESCRIPTOR = 0x07,<a name="l00020"></a>00020 EXTERNAL = 0x08,<a name="l00021"></a>00021 REAL = 0x09,<a name="l00022"></a>00022 ENUMERATED = 0x0a,<a name="l00023"></a>00023 UTF8_STRING = 0x0c,<a name="l00024"></a>00024 SEQUENCE = 0x10,<a name="l00025"></a>00025 SET = 0x11,<a name="l00026"></a>00026 NUMERIC_STRING = 0x12,<a name="l00027"></a>00027 PRINTABLE_STRING = 0x13,<a name="l00028"></a>00028 T61_STRING = 0x14,<a name="l00029"></a>00029 VIDEOTEXT_STRING = 0x15,<a name="l00030"></a>00030 IA5_STRING = 0x16,<a name="l00031"></a>00031 UTC_TIME = 0x17,<a name="l00032"></a>00032 GENERALIZED_TIME = 0x18,<a name="l00033"></a>00033 GRAPHIC_STRING = 0x19,<a name="l00034"></a>00034 VISIBLE_STRING = 0x1a,<a name="l00035"></a>00035 GENERAL_STRING = 0x1b<a name="l00036"></a>00036 };<a name="l00037"></a>00037 <a name="l00038"></a>00038 <span class="keyword">enum</span> ASNIdFlag<a name="l00039"></a>00039 {<a name="l00040"></a>00040 UNIVERSAL = 0x00,<a name="l00041"></a>00041 <span class="comment">// DATA = 0x01,</span><a name="l00042"></a>00042 <span class="comment">// HEADER = 0x02,</span><a name="l00043"></a>00043 CONSTRUCTED = 0x20,<a name="l00044"></a>00044 APPLICATION = 0x40,<a name="l00045"></a>00045 CONTEXT_SPECIFIC = 0x80,<a name="l00046"></a>00046 PRIVATE = 0xc0<a name="l00047"></a>00047 };<a name="l00048"></a>00048 <a name="l00049"></a>00049 <span class="keyword">inline</span> <span class="keywordtype">void</span> BERDecodeError() {<span class="keywordflow">throw</span> <a class="code" href="class_b_e_r_decode_err.html" title="BER Decode Exception Class, may be thrown during an ASN1 BER decode operation.">BERDecodeErr</a>();}<a name="l00050"></a>00050 <a name="l00051"></a><a class="code" href="class_unknown_o_i_d.html">00051</a> <span class="keyword">class </span>CRYPTOPP_DLL <a class="code" href="class_unknown_o_i_d.html">UnknownOID</a> : <span class="keyword">public</span> <a class="code" href="class_b_e_r_decode_err.html" title="BER Decode Exception Class, may be thrown during an ASN1 BER decode operation.">BERDecodeErr</a><a name="l00052"></a>00052 {<a name="l00053"></a>00053 <span class="keyword">public</span>:<a name="l00054"></a><a class="code" href="class_unknown_o_i_d.html#925fdeeb0fe3ca42b692c28f41bb7ef4">00054</a> <a class="code" href="class_unknown_o_i_d.html">UnknownOID</a>() : <a class="code" href="class_b_e_r_decode_err.html" title="BER Decode Exception Class, may be thrown during an ASN1 BER decode operation.">BERDecodeErr</a>(<span class="stringliteral">"BER decode error: unknown object identifier"</span>) {}<a name="l00055"></a><a class="code" href="class_unknown_o_i_d.html#d9c0b7c84517859d341b7dbca4532a69">00055</a> <a class="code" href="class_unknown_o_i_d.html">UnknownOID</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *err) : <a class="code" href="class_b_e_r_decode_err.html" title="BER Decode Exception Class, may be thrown during an ASN1 BER decode operation.">BERDecodeErr</a>(err) {}<a name="l00056"></a>00056 };<a name="l00057"></a>00057 <a name="l00058"></a>00058 <span class="comment">// unsigned int DERLengthEncode(unsigned int length, byte *output=0);</span><a name="l00059"></a>00059 CRYPTOPP_DLL <span class="keywordtype">size_t</span> CRYPTOPP_API DERLengthEncode(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &out, lword length);<a name="l00060"></a>00060 <span class="comment">// returns false if indefinite length</span><a name="l00061"></a>00061 CRYPTOPP_DLL <span class="keywordtype">bool</span> CRYPTOPP_API BERLengthDecode(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &in, <span class="keywordtype">size_t</span> &length);<a name="l00062"></a>00062 <a name="l00063"></a>00063 CRYPTOPP_DLL <span class="keywordtype">void</span> CRYPTOPP_API DEREncodeNull(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &out);<a name="l00064"></a>00064 CRYPTOPP_DLL <span class="keywordtype">void</span> CRYPTOPP_API BERDecodeNull(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &in);<a name="l00065"></a>00065 <a name="l00066"></a>00066 CRYPTOPP_DLL <span class="keywordtype">size_t</span> CRYPTOPP_API DEREncodeOctetString(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &out, <span class="keyword">const</span> byte *str, <span class="keywordtype">size_t</span> strLen);<a name="l00067"></a>00067 CRYPTOPP_DLL <span class="keywordtype">size_t</span> CRYPTOPP_API DEREncodeOctetString(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &out, <span class="keyword">const</span> <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecByteBlock</a> &str);<a name="l00068"></a>00068 CRYPTOPP_DLL <span class="keywordtype">size_t</span> CRYPTOPP_API BERDecodeOctetString(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &in, <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecByteBlock</a> &str);<a name="l00069"></a>00069 CRYPTOPP_DLL <span class="keywordtype">size_t</span> CRYPTOPP_API BERDecodeOctetString(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &in, <a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &str);<a name="l00070"></a>00070 <a name="l00071"></a>00071 <span class="comment">// for UTF8_STRING, PRINTABLE_STRING, and IA5_STRING</span><a name="l00072"></a>00072 CRYPTOPP_DLL <span class="keywordtype">size_t</span> CRYPTOPP_API DEREncodeTextString(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &out, <span class="keyword">const</span> std::string &str, byte asnTag);<a name="l00073"></a>00073 CRYPTOPP_DLL <span class="keywordtype">size_t</span> CRYPTOPP_API BERDecodeTextString(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &in, std::string &str, byte asnTag);<a name="l00074"></a>00074 <a name="l00075"></a>00075 CRYPTOPP_DLL <span class="keywordtype">size_t</span> CRYPTOPP_API DEREncodeBitString(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &out, <span class="keyword">const</span> byte *str, <span class="keywordtype">size_t</span> strLen, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> unusedBits=0);<a name="l00076"></a>00076 CRYPTOPP_DLL <span class="keywordtype">size_t</span> CRYPTOPP_API BERDecodeBitString(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> &in, <a class="code" href="class_sec_block.html" title="a block of memory allocated using A">SecByteBlock</a> &str, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> &unusedBits);<a name="l00077"></a>00077 <a name="l00078"></a>00078 <span class="comment">// BER decode from source and DER reencode into dest</span>⌨️ 快捷键说明
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