1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 2 3<html> 4 <head> 5 <meta name="generator" content="HTML Tidy, see www.w3.org"> 6 <title>Authenticated Transfer</title> 7 <meta name="GENERATOR" content= 8 "Modular DocBook HTML Stylesheet Version 1.7"> 9 <link rel="HOME" title=" LPRng Reference Manual" href= 10 "index.htm"> 11 <link rel="UP" title="RFC 1179 - Line Printer Daemon Protocol " 12 href="rfc1179ref.htm"> 13 <link rel="PREVIOUS" title="Block Job Transfer" href= 14 "sendblockformat.htm"> 15 <link rel="NEXT" title="The Most Frequently Asked Questions " 16 href="faq.htm"> 17 </head> 18 19 <body class="SECT1" bgcolor="#FFFFFF" text="#000000" link= 20 "#0000FF" vlink="#840084" alink="#0000FF"> 21 <div class="NAVHEADER"> 22 <table summary="Header navigation table" width="100%" border= 23 "0" cellpadding="0" cellspacing="0"> 24 <tr> 25 <th colspan="3" align="center">LPRng Reference Manual: 5 26 Sep 2003 (For LPRng-3.8.22)</th> 27 </tr> 28 29 <tr> 30 <td width="10%" align="left" valign="bottom"><a href= 31 "sendblockformat.htm" accesskey="P">Prev</a></td> 32 33 <td width="80%" align="center" valign="bottom">Chapter 34 19. RFC 1179 - Line Printer Daemon Protocol</td> 35 36 <td width="10%" align="right" valign="bottom"><a href= 37 "faq.htm" accesskey="N">Next</a></td> 38 </tr> 39 </table> 40 <hr align="LEFT" width="100%"> 41 </div> 42 43 <div class="SECT1"> 44 <h1 class="SECT1"><a name="AEN10656">19.10. Authenticated 45 Transfer</a></h1> 46 47 <p>RFC1179 does not provide any authentication or encryption 48 mechanism for the transfer of jobs or commands to the <b 49 class="APPLICATION">lpd</b> print server. The Authenticated 50 Transfer operation was added to allow an encrypted or 51 authenticated transfer of print jobs or commands.</p> 52 53 <p>Since there are various restrictions on the incorporation 54 of authentication facilities into programs, <b class= 55 "APPLICATION">LPRng</b> supports authentication by providing 56 a simple interface to encryption programs.</p> 57 58 <p>The idea is that when authentication is required when 59 sending a job, <b class="APPLICATION">LPRng</b> will generate 60 a block transfer job as described for the <a href= 61 "sendblockformat.htm">Block Job Transfer</a> operation, and 62 then invoke a set of programs to encryt and transfer the 63 file, and encrypt and transfer the returned status.</p> 64 65 <p>Similarly, when sending a command, the command information 66 will be placed in a file and the encrypted file will be 67 transferred.</p> 68 69 <p>This technique means that the programs and support to do 70 encryption are external to <b class="APPLICATION">LPRng</b>, 71 and can use any type of method that they choose to implement 72 the secure and/or authenticated transfer.</p> 73 74 <p>See <a href="authref.htm">Authentication and 75 Encryption</a> for details on the authentication 76 interface.</p> 77 </div> 78 79 <div class="NAVFOOTER"> 80 <hr align="LEFT" width="100%"> 81 82 <table summary="Footer navigation table" width="100%" border= 83 "0" cellpadding="0" cellspacing="0"> 84 <tr> 85 <td width="33%" align="left" valign="top"><a href= 86 "sendblockformat.htm" accesskey="P">Prev</a></td> 87 88 <td width="34%" align="center" valign="top"><a href= 89 "index.htm" accesskey="H">Home</a></td> 90 91 <td width="33%" align="right" valign="top"><a href= 92 "faq.htm" accesskey="N">Next</a></td> 93 </tr> 94 95 <tr> 96 <td width="33%" align="left" valign="top">Block Job 97 Transfer</td> 98 99 <td width="34%" align="center" valign="top"><a href= 100 "rfc1179ref.htm" accesskey="U">Up</a></td> 101 102 <td width="33%" align="right" valign="top">The Most 103 Frequently Asked Questions</td> 104 </tr> 105 </table> 106 </div> 107 </body> 108</html> 109 110