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<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"/><title>13 Base 64: Encoding and Decoding</title><link rel="stylesheet" type="text/css" href="../scribble.css" title="default"/><link rel="stylesheet" type="text/css" href="../racket.css" title="default"/><link rel="stylesheet" type="text/css" href="../manual-style.css" title="default"/><link rel="stylesheet" type="text/css" href="../manual-racket.css" title="default"/><link rel="stylesheet" type="text/css" href="../doc-site.css" title="default"/><script type="text/javascript" src="../scribble-common.js"></script><script type="text/javascript" src="../manual-racket.js"></script><script type="text/javascript" src="../doc-site.js"></script><script type="text/javascript" src="../local-redirect/local-redirect.js"></script><script type="text/javascript" src="../local-redirect/local-user-redirect.js"></script><!--[if IE 6]><style type="text/css">.SIEHidden { overflow: hidden; }</style><![endif]--></head><body id="doc-racket-lang-org"><div class="tocset"><div class="tocview"><div class="tocviewlist tocviewlisttopspace"><div class="tocviewtitle"><table cellspacing="0" cellpadding="0"><tr><td style="width: 1em;"><a href="javascript:void(0);" title="Expand/Collapse" class="tocviewtoggle" onclick="TocviewToggle(this,"tocview_0");">▼</a></td><td></td><td><a href="index.html" class="tocviewlink" data-pltdoc="x">Net:<span class="mywbr"> </span> Networking Libraries</a></td></tr></table></div><div class="tocviewsublisttop" style="display: block;" id="tocview_0"><table cellspacing="0" cellpadding="0"><tr><td align="right">1 </td><td><a href="http-client.html" class="tocviewlink" data-pltdoc="x">HTTP Client</a></td></tr><tr><td align="right">2 </td><td><a href="url.html" class="tocviewlink" data-pltdoc="x">URLs and HTTP</a></td></tr><tr><td align="right">3 </td><td><a href="uri-codec.html" class="tocviewlink" data-pltdoc="x">URI Codec:<span class="mywbr"> </span> Encoding and Decoding URIs</a></td></tr><tr><td align="right">4 </td><td><a href="websocket.html" class="tocviewlink" data-pltdoc="x">Web<span class="mywbr"> </span>Socket</a></td></tr><tr><td align="right">5 </td><td><a href="ftp.html" class="tocviewlink" data-pltdoc="x">FTP:<span class="mywbr"> </span> Client</a></td></tr><tr><td align="right">6 </td><td><a href="sendurl.html" class="tocviewlink" data-pltdoc="x">Send URL:<span class="mywbr"> </span> Opening a Web Browser</a></td></tr><tr><td align="right">7 </td><td><a href="smtp.html" class="tocviewlink" data-pltdoc="x">SMTP:<span class="mywbr"> </span> Sending E-<wbr></wbr>Mail</a></td></tr><tr><td align="right">8 </td><td><a href="sendmail.html" class="tocviewlink" data-pltdoc="x"><span class="stt">sendmail</span>:<span class="mywbr"> </span> Sending E-<wbr></wbr>Mail</a></td></tr><tr><td align="right">9 </td><td><a href="head.html" class="tocviewlink" data-pltdoc="x">Headers:<span class="mywbr"> </span> Parsing and Constructing</a></td></tr><tr><td align="right">10 </td><td><a href="imap.html" class="tocviewlink" data-pltdoc="x">IMAP:<span class="mywbr"> </span> Reading Mail</a></td></tr><tr><td align="right">11 </td><td><a href="pop3.html" class="tocviewlink" data-pltdoc="x">POP3:<span class="mywbr"> </span> Reading Mail</a></td></tr><tr><td align="right">12 </td><td><a href="mime.html" class="tocviewlink" data-pltdoc="x">MIME:<span class="mywbr"> </span> Decoding Internet Data</a></td></tr><tr><td align="right">13 </td><td><a href="" class="tocviewselflink" data-pltdoc="x">Base 64:<span class="mywbr"> </span> Encoding and Decoding</a></td></tr><tr><td align="right">14 </td><td><a href="qp.html" class="tocviewlink" data-pltdoc="x">Quoted-<wbr></wbr>Printable:<span class="mywbr"> </span> Encoding and Decoding</a></td></tr><tr><td align="right">15 </td><td><a href="dns.html" class="tocviewlink" data-pltdoc="x">DNS:<span class="mywbr"> </span> Domain Name Service Queries</a></td></tr><tr><td align="right">16 </td><td><a href="nntp.html" class="tocviewlink" data-pltdoc="x">NNTP:<span class="mywbr"> </span> Newsgroup Protocol</a></td></tr><tr><td align="right">17 </td><td><a href="tcp.html" class="tocviewlink" data-pltdoc="x">TCP:<span class="mywbr"> </span> Unit and Signature</a></td></tr><tr><td align="right">18 </td><td><a href="tcp-redirect.html" class="tocviewlink" data-pltdoc="x">TCP Redirect:<span class="mywbr"> </span> <span class="RktSym"><span class="RktStxLink">tcp^</span></span> via Channels</a></td></tr><tr><td align="right">19 </td><td><a href="ssl-tcp-unit.html" class="tocviewlink" data-pltdoc="x">SSL Unit:<span class="mywbr"> </span> <span class="RktSym"><span class="RktStxLink">tcp^</span></span> via SSL</a></td></tr><tr><td align="right">20 </td><td><a href="cgi.html" class="tocviewlink" data-pltdoc="x">CGI Scripts</a></td></tr><tr><td align="right">21 </td><td><a href="cookie.html" class="tocviewlink" data-pltdoc="x">Cookie:<span class="mywbr"> </span> HTTP Client Storage</a></td></tr><tr><td align="right"></td><td><a href="doc-bibliography.html" class="tocviewlink" data-pltdoc="x">Bibliography</a></td></tr><tr><td align="right"></td><td><a href="doc-index.html" class="tocviewlink" data-pltdoc="x">Index</a></td></tr></table></div></div><div class="tocviewlist"><table cellspacing="0" cellpadding="0"><tr><td style="width: 1em;"><a href="javascript:void(0);" title="Expand/Collapse" class="tocviewtoggle" onclick="TocviewToggle(this,"tocview_1");">►</a></td><td>13 </td><td><a href="" class="tocviewselflink" data-pltdoc="x">Base 64:<span class="mywbr"> </span> Encoding and Decoding</a></td></tr></table><div class="tocviewsublistbottom" style="display: none;" id="tocview_1"><table cellspacing="0" cellpadding="0"><tr><td align="right">13.1 </td><td><a href="#%28part._base64-procs%29" class="tocviewlink" data-pltdoc="x">Functions</a></td></tr><tr><td align="right">13.2 </td><td><a href="#%28part._.Base64_.Unit%29" class="tocviewlink" data-pltdoc="x">Base64 Unit</a></td></tr><tr><td align="right">13.3 </td><td><a href="#%28part._.Base64_.Signature%29" class="tocviewlink" data-pltdoc="x">Base64 Signature</a></td></tr></table></div></div></div><div class="tocsub"><div class="tocsubtitle">On this page:</div><table class="tocsublist" cellspacing="0"><tr><td><span class="tocsublinknumber">13.1<tt> </tt></span><a href="#%28part._base64-procs%29" class="tocsubseclink" data-pltdoc="x">Functions</a></td></tr><tr><td><a href="#%28def._%28%28lib._net%2Fbase64..rkt%29._base64-encode%29%29" class="tocsubnonseclink" data-pltdoc="x"><span class="RktSym"><span class="RktValLink">base64-<wbr></wbr>encode</span></span></a></td></tr><tr><td><a href="#%28def._%28%28lib._net%2Fbase64..rkt%29._base64-decode%29%29" class="tocsubnonseclink" data-pltdoc="x"><span class="RktSym"><span class="RktValLink">base64-<wbr></wbr>decode</span></span></a></td></tr><tr><td><a href="#%28def._%28%28lib._net%2Fbase64..rkt%29._base64-encode-stream%29%29" class="tocsubnonseclink" data-pltdoc="x"><span class="RktSym"><span class="RktValLink">base64-<wbr></wbr>encode-<wbr></wbr>stream</span></span></a></td></tr><tr><td><a href="#%28def._%28%28lib._net%2Fbase64..rkt%29._base64-decode-stream%29%29" class="tocsubnonseclink" data-pltdoc="x"><span class="RktSym"><span class="RktValLink">base64-<wbr></wbr>decode-<wbr></wbr>stream</span></span></a></td></tr><tr><td><span class="tocsublinknumber">13.2<tt> </tt></span><a href="#%28part._.Base64_.Unit%29" class="tocsubseclink" data-pltdoc="x">Base64 Unit</a></td></tr><tr><td><a href="#%28def._%28%28lib._net%2Fbase64-unit..rkt%29._base64~40%29%29" class="tocsubnonseclink" data-pltdoc="x"><span class="RktSym"><span class="RktValLink">base64@</span></span></a></td></tr><tr><td><span class="tocsublinknumber">13.3<tt> </tt></span><a href="#%28part._.Base64_.Signature%29" class="tocsubseclink" data-pltdoc="x">Base64 Signature</a></td></tr><tr><td><a href="#%28form._%28%28lib._net%2Fbase64-sig..rkt%29._base64~5e%29%29" class="tocsubnonseclink" data-pltdoc="x"><span class="RktSym"><span class="RktStxLink">base64^</span></span></a></td></tr></table></div></div><div class="maincolumn"><div class="main"><div class="navsettop"><span class="navleft"><form class="searchform"><input class="searchbox" style="color: #888;" type="text" value="...search manuals..." title="Enter a search string to search the manuals" onkeypress="return DoSearchKey(event, this, "6.1", "../");" onfocus="this.style.color="black"; this.style.textAlign="left"; if (this.value == "...search manuals...") this.value="";" onblur="if (this.value.match(/^ *$/)) { this.style.color="#888"; this.style.textAlign="center"; this.value="...search manuals..."; }"/></form> <a href="../index.html" title="up to the documentation top" data-pltdoc="x" onclick="return GotoPLTRoot("6.1");">top</a></span><span class="navright"> <a href="mime.html" title="backward to "12 MIME: Decoding Internet Data"" data-pltdoc="x">← prev</a> <a href="index.html" title="up to "Net: Networking Libraries"" data-pltdoc="x">up</a> <a href="qp.html" title="forward to "14 Quoted-Printable: Encoding and Decoding"" data-pltdoc="x">next →</a></span> </div><h3 x-source-module="(lib "net/scribblings/net.scrbl")" x-part-tag=""base64"">13<tt> </tt><a name="(part._base64)"></a><a name="(mod-path._net/base64)"></a>Base 64: Encoding and Decoding</h3><p><div class="SIntrapara"><table cellspacing="0" cellpadding="0" class="defmodule"><tr><td align="left"><span class="hspace"> </span><span class="RktPn">(</span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=require.html%23%2528form._%2528%2528lib._racket%252Fprivate%252Fbase..rkt%2529._require%2529%2529&version=6.1" class="RktStxLink Sq" data-pltdoc="x">require</a></span><span class="stt"> </span><a href="" class="RktModLink" data-pltdoc="x"><span class="RktSym">net/base64</span></a><span class="RktPn">)</span></td><td align="right"><span class="RpackageSpec"><span class="Smaller"> package:</span> <span class="stt">base</span></span></td></tr></table></div><div class="SIntrapara">The <a href="" class="RktModLink" data-pltdoc="x"><span class="RktSym">net/base64</span></a> library provides
utilities for Base 64 (MIME-standard) encoding and decoding.</div></p><h4 x-source-module="(lib "net/scribblings/net.scrbl")" x-part-tag=""base64-procs"">13.1<tt> </tt><a name="(part._base64-procs)"></a>Functions</h4><p><div class="SIntrapara"><blockquote class="SVInsetFlow"><table cellspacing="0" cellpadding="0" class="boxed RBoxed"><tr><td><blockquote class="SubFlow"><div class="RBackgroundLabel SIEHidden"><div class="RBackgroundLabelInner"><p>procedure</p></div></div><p class="RForeground"><span class="RktPn">(</span><a name="(def._((lib._net/base64..rkt)._base64-encode))"></a><span title="Provided from: net/base64 | Package: base"><span class="RktSym"><a href="#%28def._%28%28lib._net%2Fbase64..rkt%29._base64-encode%29%29" class="RktValDef RktValLink" data-pltdoc="x">base64-encode</a></span></span><span class="hspace"> </span><span class="RktVar">bstr</span><span class="hspace"> </span>[<span class="RktVar">newline-bstr</span>]<span class="RktPn">)</span><span class="hspace"> </span>→<span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=bytestrings.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._bytes%7E3f%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">bytes?</a></span></p></blockquote></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">bstr</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=bytestrings.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._bytes%7E3f%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">bytes?</a></span></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">newline-bstr</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=bytestrings.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._bytes%7E3f%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">bytes?</a></span><span class="hspace"> </span>=<span class="hspace"> </span><span class="RktVal">#"\r\n"</span></td></tr></table></blockquote></div><div class="SIntrapara">Consumes a byte string and returns its Base 64 encoding as a new byte
string. The returned string is broken into 72-byte lines separated by
<span class="RktVar">newline-bstr</span>, which defaults to a CRLF combination, and the
result always ends with a <span class="RktVar">newline-bstr</span> unless the
input is empty.</div></p><p><div class="SIntrapara"><blockquote class="SVInsetFlow"><table cellspacing="0" cellpadding="0" class="boxed RBoxed"><tr><td><blockquote class="SubFlow"><div class="RBackgroundLabel SIEHidden"><div class="RBackgroundLabelInner"><p>procedure</p></div></div><p class="RForeground"><span class="RktPn">(</span><a name="(def._((lib._net/base64..rkt)._base64-decode))"></a><span title="Provided from: net/base64 | Package: base"><span class="RktSym"><a href="#%28def._%28%28lib._net%2Fbase64..rkt%29._base64-decode%29%29" class="RktValDef RktValLink" data-pltdoc="x">base64-decode</a></span></span><span class="hspace"> </span><span class="RktVar">bstr</span><span class="RktPn">)</span><span class="hspace"> </span>→<span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=bytestrings.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._bytes%7E3f%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">bytes?</a></span></p></blockquote></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">bstr</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=bytestrings.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._bytes%7E3f%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">bytes?</a></span></td></tr></table></blockquote></div><div class="SIntrapara">Consumes a byte string and returns its Base 64 decoding as a new byte
string.</div></p><p><div class="SIntrapara"><blockquote class="SVInsetFlow"><table cellspacing="0" cellpadding="0" class="boxed RBoxed"><tr><td><blockquote class="SubFlow"><div class="RBackgroundLabel SIEHidden"><div class="RBackgroundLabelInner"><p>procedure</p></div></div><p class="RForeground"><span class="RktPn">(</span><a name="(def._((lib._net/base64..rkt)._base64-encode-stream))"></a><span title="Provided from: net/base64 | Package: base"><span class="RktSym"><a href="#%28def._%28%28lib._net%2Fbase64..rkt%29._base64-encode-stream%29%29" class="RktValDef RktValLink" data-pltdoc="x">base64-encode-stream</a></span></span><span class="hspace"> </span><span class="RktVar">in</span><span class="hspace"> </span><span class="RktVar">out</span><span class="hspace"> </span>[<span class="RktVar">newline-bstr</span>]<span class="RktPn">)</span><span class="hspace"> </span>→<span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=void.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._void%7E3f%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">void?</a></span></p></blockquote></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">in</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=port-ops.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._input-port%7E3f%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">input-port?</a></span></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">out</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=port-ops.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._output-port%7E3f%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">output-port?</a></span></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">newline-bstr</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=bytestrings.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._bytes%7E3f%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">bytes?</a></span><span class="hspace"> </span>=<span class="hspace"> </span><span class="RktVal">#"\n"</span></td></tr></table></blockquote></div><div class="SIntrapara">Reads bytes from <span class="RktVar">in</span> and writes the encoded result to
<span class="RktVar">out</span>, breaking the output into 72-character lines separated by
<span class="RktVar">newline-bstr</span>, and ending with <span class="RktVar">newline-bstr</span> unless
the input stream is empty. Note that the default <span class="RktVar">newline-bstr</span>
is just <span class="RktVal">#"\n"</span>, not <span class="RktVal">#"\r\n"</span>. The procedure returns when
it encounters an end-of-file from <span class="RktVar">in</span>.</div></p><p><div class="SIntrapara"><blockquote class="SVInsetFlow"><table cellspacing="0" cellpadding="0" class="boxed RBoxed"><tr><td><blockquote class="SubFlow"><div class="RBackgroundLabel SIEHidden"><div class="RBackgroundLabelInner"><p>procedure</p></div></div><p class="RForeground"><span class="RktPn">(</span><a name="(def._((lib._net/base64..rkt)._base64-decode-stream))"></a><span title="Provided from: net/base64 | Package: base"><span class="RktSym"><a href="#%28def._%28%28lib._net%2Fbase64..rkt%29._base64-decode-stream%29%29" class="RktValDef RktValLink" data-pltdoc="x">base64-decode-stream</a></span></span><span class="hspace"> </span><span class="RktVar">in</span><span class="hspace"> </span><span class="RktVar">out</span><span class="RktPn">)</span><span class="hspace"> </span>→<span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=void.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._void%7E3f%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">void?</a></span></p></blockquote></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">in</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=port-ops.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._input-port%7E3f%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">input-port?</a></span></td></tr><tr><td><span class="hspace"> </span><span class="RktVar">out</span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=port-ops.html%23%2528def._%2528%2528quote._%7E23%7E25kernel%2529._output-port%7E3f%2529%2529&version=6.1" class="RktValLink Sq" data-pltdoc="x">output-port?</a></span></td></tr></table></blockquote></div><div class="SIntrapara">Reads a Base 64 encoding from <span class="RktVar">in</span> and writes the decoded
result to <span class="RktVar">out</span>. The procedure returns when it encounters an
end-of-file or Base 64 terminator <span class="RktInBG"><span class="hspace"></span><span class="RktIn">=</span><span class="hspace"></span></span> from <span class="RktVar">in</span>.</div></p><h4 x-source-module="(lib "net/scribblings/net.scrbl")" x-part-tag=""Base64_Unit"">13.2<tt> </tt><a name="(part._.Base64_.Unit)"></a><a name="(mod-path._net/base64-unit)"></a>Base64 Unit</h4><blockquote class="refpara"><blockquote class="refcolumn"><blockquote class="refcontent"><p><span class="RktSym"><a href="#%28def._%28%28lib._net%2Fbase64-unit..rkt%29._base64~40%29%29" class="RktValLink" data-pltdoc="x">base64@</a></span> and <span class="RktSym"><a href="#%28form._%28%28lib._net%2Fbase64-sig..rkt%29._base64~5e%29%29" class="RktStxLink" data-pltdoc="x">base64^</a></span> are deprecated.
They exist for backward-compatibility and will likely be removed in
the future. New code should use the <a href="" class="RktModLink" data-pltdoc="x"><span class="RktSym">net/base64</span></a> module.</p></blockquote></blockquote></blockquote><p><table cellspacing="0" cellpadding="0" class="defmodule"><tr><td align="left"><span class="hspace"> </span><span class="RktPn">(</span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=require.html%23%2528form._%2528%2528lib._racket%252Fprivate%252Fbase..rkt%2529._require%2529%2529&version=6.1" class="RktStxLink Sq" data-pltdoc="x">require</a></span><span class="stt"> </span><a href="#%28mod-path._net%2Fbase64-unit%29" class="RktModLink" data-pltdoc="x"><span class="RktSym">net/base64-unit</span></a><span class="RktPn">)</span></td><td align="right"><span class="RpackageSpec"><span class="Smaller"> package:</span> <span class="stt">compatibility-lib</span></span></td></tr></table></p><p><div class="SIntrapara"><blockquote class="SVInsetFlow"><table cellspacing="0" cellpadding="0" class="boxed RBoxed"><tr><td><blockquote class="SubFlow"><div class="RBackgroundLabel SIEHidden"><div class="RBackgroundLabelInner"><p>value</p></div></div><p class="RForeground"><a name="(def._((lib._net/base64-unit..rkt)._base64~40))"></a><span title="Provided from: net/base64-unit | Package: compatibility-lib"><span class="RktSym"><a href="#%28def._%28%28lib._net%2Fbase64-unit..rkt%29._base64~40%29%29" class="RktValDef RktValLink" data-pltdoc="x">base64@</a></span></span><span class="hspace"> </span>:<span class="hspace"> </span><span class="RktSym">unit?</span></p></blockquote></td></tr></table></blockquote></div><div class="SIntrapara">Imports nothing, exports <span class="RktSym"><a href="#%28form._%28%28lib._net%2Fbase64-sig..rkt%29._base64~5e%29%29" class="RktStxLink" data-pltdoc="x">base64^</a></span>.</div></p><h4 x-source-module="(lib "net/scribblings/net.scrbl")" x-part-tag=""Base64_Signature"">13.3<tt> </tt><a name="(part._.Base64_.Signature)"></a><a name="(mod-path._net/base64-sig)"></a>Base64 Signature</h4><p><table cellspacing="0" cellpadding="0" class="defmodule"><tr><td align="left"><span class="hspace"> </span><span class="RktPn">(</span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&rel=require.html%23%2528form._%2528%2528lib._racket%252Fprivate%252Fbase..rkt%2529._require%2529%2529&version=6.1" class="RktStxLink Sq" data-pltdoc="x">require</a></span><span class="stt"> </span><a href="#%28mod-path._net%2Fbase64-sig%29" class="RktModLink" data-pltdoc="x"><span class="RktSym">net/base64-sig</span></a><span class="RktPn">)</span></td><td align="right"><span class="RpackageSpec"><span class="Smaller"> package:</span> <span class="stt">compatibility-lib</span></span></td></tr></table></p><p><div class="SIntrapara"><blockquote class="SVInsetFlow"><table cellspacing="0" cellpadding="0" class="boxed RBoxed"><tr><td><blockquote class="SubFlow"><div class="RBackgroundLabel SIEHidden"><div class="RBackgroundLabelInner"><p>signature</p></div></div><p class="RForeground"><a name="(form._((lib._net/base64-sig..rkt)._base64~5e))"></a><span title="Provided from: net/base64-sig | Package: compatibility-lib"><span class="RktSym"><a href="#%28form._%28%28lib._net%2Fbase64-sig..rkt%29._base64~5e%29%29" class="RktStxDef RktStxLink" data-pltdoc="x">base64^</a></span></span><span class="hspace"> </span>:<span class="hspace"> </span>signature</p></blockquote></td></tr></table></blockquote></div><div class="SIntrapara"><blockquote class="leftindent"></blockquote></div></p><p>Includes everything exported by the <a href="" class="RktModLink" data-pltdoc="x"><span class="RktSym">net/base64</span></a> module.</p><div class="navsetbottom"><span class="navleft"><form class="searchform"><input class="searchbox" style="color: #888;" type="text" value="...search manuals..." title="Enter a search string to search the manuals" onkeypress="return DoSearchKey(event, this, "6.1", "../");" onfocus="this.style.color="black"; this.style.textAlign="left"; if (this.value == "...search manuals...") this.value="";" onblur="if (this.value.match(/^ *$/)) { this.style.color="#888"; this.style.textAlign="center"; this.value="...search manuals..."; }"/></form> <a href="../index.html" title="up to the documentation top" data-pltdoc="x" onclick="return GotoPLTRoot("6.1");">top</a></span><span class="navright"> <a href="mime.html" title="backward to "12 MIME: Decoding Internet Data"" data-pltdoc="x">← prev</a> <a href="index.html" title="up to "Net: Networking Libraries"" data-pltdoc="x">up</a> <a href="qp.html" title="forward to "14 Quoted-Printable: Encoding and Decoding"" data-pltdoc="x">next →</a></span> </div></div></div><div id="contextindicator"> </div></body></html>
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