[转帖]ICAD2008 - 图纸加密功能
<div class="uc_lanmu_articleinfor_title">浩辰ICAD2008 - 图纸加密功能</div><div class="uc_lanmu_articleinfor_title"><p class="body" style="MARGIN: auto 0cm;"><span style="FONT-FAMILY: 宋体;"><b style="mso-bidi-font-weight: normal;">概念</b></span><b style="mso-bidi-font-weight: normal;"><p></p></b></p><p class="body" style="MARGIN: auto 0cm; TEXT-INDENT: 21pt;"><span style="FONT-FAMILY: 宋体;">修改文件或保存文件时，可以向图形添加口令，之后保存该图形，图形文件将被加密。除非输入口令，否则图形文件将无法重新打开。这样能保证用户图纸的安全性。若有多个图形文件，应该为每个需要加密的图形分别附加口令。</span></p><p class="body" style="MARGIN: auto 0cm; TEXT-INDENT: 21pt;"><span style="FONT-FAMILY: 宋体;">加密算法完全兼容<span lang="EN-US">ACAD，即ICAD和ACAD加密的图形文件可以双向存取。</span></span></p><p class="body" style="MARGIN: auto 0cm;"><span style="FONT-FAMILY: 宋体;"><b style="mso-bidi-font-weight: normal;"><span lang="EN-US">1、打开“安全选项”对话框</b></span></span><b style="mso-bidi-font-weight: normal;"><p></p></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体;"><span lang="EN-US">a、可以通过“文件对话框”中“工具”—>“安全选项”打开</span></span></p><span style="FONT-FAMILY: 宋体;"><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-SIZE: 12px;"><span style="FONT-FAMILY: 宋体;"><span class="sansbold"><span lang="EN-US">b</span>、通过命令<span lang="EN-US">SECURITYOPTIONS</span></span></span><span lang="EN-US"><p></p></span></p><p class="body" style="MARGIN: auto 0cm;"><span style="FONT-FAMILY: 宋体;"><b style="mso-bidi-font-weight: normal;"><span lang="EN-US">2、“安全选项”对话框界面介绍</b></span></span></p><span style="FONT-FAMILY: 宋体;"><p class="body" style="MARGIN: auto 0cm;"><b><span style="FONT-SIZE: 12px;"><span style="FONT-FAMILY: 宋体;"><span>目的</span></span></b><span lang="EN-US"><p></p></span></p><p class="body" style="MARGIN: auto 0cm; TEXT-INDENT: 21pt;"><span style="FONT-FAMILY: 宋体;">保存图形时为图形添加口令。</span></p><p class="definehead" style="MARGIN: auto 0cm;"><b><span style="FONT-FAMILY: 宋体;"><span>打开此图形的口令或短语</span></span></b><span lang="EN-US"><p></p></span></p><p class="definetext" style="MARGIN: auto 0cm; TEXT-INDENT: 21pt;"><span style="FONT-FAMILY: 宋体;">下次保存图形时添加、更改或删除口令。添加或更改口令时，将显示</span><span style="FONT-FAMILY: 宋体;"><span lang="EN-US"><a href="mk:@MSITStore:D:\Program%20Files\AutoCAD%202004\help\acad_acr.chm::/acr_s22.html"><span class="linkfile"><span style="TEXT-DECORATION: none; text-underline: none;">“</span><span lang="EN-US" style="TEXT-DECORATION: none; text-underline: none;"><span lang="EN-US">确认口令”</span></span><span lang="EN-US" style="TEXT-DECORATION: none; text-underline: none;"><span lang="EN-US">对话框</span></span></a></span>。口令丢失后不能恢复。建议在添加口令之前，用户应该创建没有口令保护的备份。</span></span></p><p class="definehead" style="MARGIN: auto 0cm;"><b><span style="FONT-FAMILY: 宋体;"><span>当前加密类型</span></span></b><span lang="EN-US"><p></p></span></p><p class="definetext" style="MARGIN: auto 0cm; TEXT-INDENT: 21pt;"><span style="FONT-FAMILY: 宋体;">除非用户通过单击<span lang="EN-US">“高级选项”按钮选择高级加密级别，否则指定为操作系统提供的默认加密级别。</span></span></p><p class="definehead" style="MARGIN: auto 0cm;"><b><span style="FONT-FAMILY: 宋体;"><span>高级选项</span></span></b><span lang="EN-US"><p></p></span></p><p class="definetext" style="MARGIN: auto 0cm; TEXT-INDENT: 21pt;"><span style="FONT-FAMILY: 宋体;">打开</span><span style="FONT-FAMILY: 宋体;"><span lang="EN-US"><a href="mk:@MSITStore:D:\Program%20Files\AutoCAD%202004\help\acad_acr.chm::/acr_s23.html"><span class="linkfile"><span style="TEXT-DECORATION: none; text-underline: none;">“</span><span lang="EN-US" style="TEXT-DECORATION: none; text-underline: none;"><span lang="EN-US">高级选项”</span></span><span lang="EN-US" style="TEXT-DECORATION: none; text-underline: none;"><span lang="EN-US">对话框</span></span></a></span>，从中可以选择加密提供者和密钥长度。</span></span></p><p class="body" style="MARGIN: auto 0cm;"><span style="FONT-FAMILY: 宋体;"><b style="mso-bidi-font-weight: normal;"><span lang="EN-US">3、“确认口令”对话框界面介绍</b></span></span></p><span style="FONT-FAMILY: 宋体;"><p class="body" style="MARGIN: auto 0cm;"><b><span style="FONT-SIZE: 12px;"><span style="FONT-FAMILY: 宋体;"><span>目的</span></span></b><span lang="EN-US"><p></p></span></p><p class="body" style="MARGIN: auto 0cm; TEXT-INDENT: 21pt;"><span style="FONT-FAMILY: 宋体;">确认</span><span style="FONT-FAMILY: 宋体;"><span lang="EN-US"><a href="mk:@MSITStore:D:\Program%20Files\AutoCAD%202004\help\acad_acr.chm::/acr_s21.html"><span class="linkfile">“<span lang="EN-US"><span lang="EN-US">安全选项”</span></span><span lang="EN-US"><span lang="EN-US">对话<span lang="EN-US">框</span></span></span></a></span>中输入的口令，可以在下次保存图形时添加或更改此口令。</span></span></p><p class="body" style="MARGIN: auto 0cm;"><span style="FONT-FAMILY: 宋体;"><b style="mso-bidi-font-weight: normal;"><span lang="EN-US">4、“高级选项”对话框界面介绍</b></span></span></p><span style="FONT-FAMILY: 宋体;"><p class="body" style="MARGIN: auto 0cm;"><b><span style="FONT-SIZE: 12px;"><span style="FONT-FAMILY: 宋体;"><span>目的</span></span></b><span lang="EN-US"><p></p></span></p><p class="body" style="MARGIN: auto 0cm; TEXT-INDENT: 21pt;"><span style="FONT-FAMILY: 宋体;">为需要使用口令保护的图形选择加密提供者和密钥长度。</span></p><p class="definehead" style="MARGIN: auto 0cm;"><b><span style="FONT-FAMILY: 宋体;"><span>选择一个加密提供者</span></span></b><span lang="EN-US"><p></p></span></p><p class="definetext" style="MARGIN: auto 0cm; TEXT-INDENT: 21pt;"><span style="FONT-FAMILY: 宋体;">设置图形的加密级别。可以从操作系统提供的加密提供者中选择。</span></p><p class="definehead" style="MARGIN: auto 0cm;"><b><span style="FONT-FAMILY: 宋体;"><span>选择密钥长度</span></span></b><span lang="EN-US"><p></p></span></p><p class="definetext" style="MARGIN: auto 0cm; TEXT-INDENT: 21pt;"><span style="FONT-FAMILY: 宋体;">设置密钥长度。密钥长度越长，图形的保护级别越高。</span></p></span></span><b style="mso-bidi-font-weight: normal;"><p></p></b></span></span><b style="mso-bidi-font-weight: normal;"><p></p></b></span></span><b style="mso-bidi-font-weight: normal;"><p></p></b></span></span><p></p></div>
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