特殊:Badtitle/NS100:Checksum/zh:修订间差异
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AAAAAAAA | AAAAAAAA | ||
== 链接 == | <nowiki><nowiki>在此插入非格式文本</nowiki> | ||
== | |||
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大标题文字<math>在此插入数学公式</math> == | |||
</nowiki>== 链接 == | |||
*[http://freshmeat.net/browse/19/ Freshmeat software repository. Category System Archiving] | *[http://freshmeat.net/browse/19/ Freshmeat software repository. Category System Archiving] | ||
*[http://ee.tut.fi/%7Eheikki/foss/ckmd5/ | *[http://ee.tut.fi/%7Eheikki/foss/ckmd5/ ch<math>在此插入数学公式</math>kmd5, a popular md5 checksum verifier] | ||
*[http://cfv.sourceforge.net/ cfv, a general checksum creator/checker. This can even verify .torrent files!] | *[http://cfv.sourceforge.net/ cfv, a general checksum creator/checker. This can even verify .torrent files!] | ||
*[http://winmd5sum.solidblue.ca/ winmd5sum is a free, open source, easy to use md5 checker for Windows] | *[http://winmd5sum.solidblue.ca/ winmd5sum is a free, open source, easy to use md5 checker for Windows] | ||
[[Category:基础知识]] | [[Category:基础知识]] |
2011年1月4日 (二) 13:26的版本
文章出处: |
{{#if: | {{{2}}} | https://help.ubuntu.com/community/Checksum }} |
点击翻译: |
English {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/af | • {{#if: UbuntuHelp:Checksum|Afrikaans| [[::Checksum/zh/af|Afrikaans]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/ar | • {{#if: UbuntuHelp:Checksum|العربية| [[::Checksum/zh/ar|العربية]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/az | • {{#if: UbuntuHelp:Checksum|azərbaycanca| [[::Checksum/zh/az|azərbaycanca]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/bcc | • {{#if: UbuntuHelp:Checksum|جهلسری بلوچی| [[::Checksum/zh/bcc|جهلسری بلوچی]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/bg | • {{#if: UbuntuHelp:Checksum|български| [[::Checksum/zh/bg|български]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/br | • {{#if: UbuntuHelp:Checksum|brezhoneg| [[::Checksum/zh/br|brezhoneg]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/ca | • {{#if: UbuntuHelp:Checksum|català| [[::Checksum/zh/ca|català]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/cs | • {{#if: UbuntuHelp:Checksum|čeština| [[::Checksum/zh/cs|čeština]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/de | • {{#if: UbuntuHelp:Checksum|Deutsch| [[::Checksum/zh/de|Deutsch]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/el | • {{#if: UbuntuHelp:Checksum|Ελληνικά| [[::Checksum/zh/el|Ελληνικά]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/es | • {{#if: UbuntuHelp:Checksum|español| [[::Checksum/zh/es|español]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/fa | • {{#if: UbuntuHelp:Checksum|فارسی| [[::Checksum/zh/fa|فارسی]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/fi | • {{#if: UbuntuHelp:Checksum|suomi| [[::Checksum/zh/fi|suomi]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/fr | • {{#if: UbuntuHelp:Checksum|français| [[::Checksum/zh/fr|français]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/gu | • {{#if: UbuntuHelp:Checksum|ગુજરાતી| [[::Checksum/zh/gu|ગુજરાતી]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/he | • {{#if: UbuntuHelp:Checksum|עברית| [[::Checksum/zh/he|עברית]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/hu | • {{#if: UbuntuHelp:Checksum|magyar| [[::Checksum/zh/hu|magyar]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/id | • {{#if: UbuntuHelp:Checksum|Bahasa Indonesia| [[::Checksum/zh/id|Bahasa Indonesia]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/it | • {{#if: UbuntuHelp:Checksum|italiano| [[::Checksum/zh/it|italiano]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/ja | • {{#if: UbuntuHelp:Checksum|日本語| [[::Checksum/zh/ja|日本語]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/ko | • {{#if: UbuntuHelp:Checksum|한국어| [[::Checksum/zh/ko|한국어]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/ksh | • {{#if: UbuntuHelp:Checksum|Ripoarisch| [[::Checksum/zh/ksh|Ripoarisch]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/mr | • {{#if: UbuntuHelp:Checksum|मराठी| [[::Checksum/zh/mr|मराठी]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/ms | • {{#if: UbuntuHelp:Checksum|Bahasa Melayu| [[::Checksum/zh/ms|Bahasa Melayu]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/nl | • {{#if: UbuntuHelp:Checksum|Nederlands| [[::Checksum/zh/nl|Nederlands]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/no | • {{#if: UbuntuHelp:Checksum|norsk| [[::Checksum/zh/no|norsk]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/oc | • {{#if: UbuntuHelp:Checksum|occitan| [[::Checksum/zh/oc|occitan]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/pl | • {{#if: UbuntuHelp:Checksum|polski| [[::Checksum/zh/pl|polski]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/pt | • {{#if: UbuntuHelp:Checksum|português| [[::Checksum/zh/pt|português]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/ro | • {{#if: UbuntuHelp:Checksum|română| [[::Checksum/zh/ro|română]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/ru | • {{#if: UbuntuHelp:Checksum|русский| [[::Checksum/zh/ru|русский]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/si | • {{#if: UbuntuHelp:Checksum|සිංහල| [[::Checksum/zh/si|සිංහල]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/sq | • {{#if: UbuntuHelp:Checksum|shqip| [[::Checksum/zh/sq|shqip]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/sr | • {{#if: UbuntuHelp:Checksum|српски / srpski| [[::Checksum/zh/sr|српски / srpski]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/sv | • {{#if: UbuntuHelp:Checksum|svenska| [[::Checksum/zh/sv|svenska]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/th | • {{#if: UbuntuHelp:Checksum|ไทย| [[::Checksum/zh/th|ไทย]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/tr | • {{#if: UbuntuHelp:Checksum|Türkçe| [[::Checksum/zh/tr|Türkçe]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/vi | • {{#if: UbuntuHelp:Checksum|Tiếng Việt| [[::Checksum/zh/vi|Tiếng Việt]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/yue | • {{#if: UbuntuHelp:Checksum|粵語| [[::Checksum/zh/yue|粵語]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/zh | • {{#if: UbuntuHelp:Checksum|中文| [[::Checksum/zh/zh|中文]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/zh-hans | • {{#if: UbuntuHelp:Checksum|中文(简体)| [[::Checksum/zh/zh-hans|中文(简体)]]}}|}} {{#ifexist: {{#if: UbuntuHelp:Checksum | UbuntuHelp:Checksum | {{#if: | :}}Checksum/zh}}/zh-hant | • {{#if: UbuntuHelp:Checksum|中文(繁體)| [[::Checksum/zh/zh-hant|中文(繁體)]]}}|}} |
{{#ifeq:UbuntuHelp:Checksum|:Checksum/zh|请不要直接编辑翻译本页,本页将定期与来源同步。}} |
{{#ifexist: :Checksum/zh/zh | | {{#ifexist: Checksum/zh/zh | | {{#ifeq: {{#titleparts:Checksum/zh|1|-1|}} | zh | | }} }} }} {{#ifeq: {{#titleparts:Checksum/zh|1|-1|}} | zh | | }}
校验和(checksum)是一种数学算法,用于检验信息是否跟原始拷贝保持一致。
标准用法
历史
由于当前计算机的设计理念是基于二进制思想,因此为了保证数据在计算和传输过程中不发生位错误,几乎在电脑产生的时候这一系统就使用了。如今,它(checksum)依然无处不在,即使你没察觉到;比如,当你传送TCP/IP包来查看本页面时,就使用校验和进行了即时的CRC校验。
xmodem
Xmodem,通行的文件传输协议,使用一字节的校验和。这一 checksum 是这样计算的:将所有 128 个数据字节的 ASCII 值相加,忽略所有(相加所得的和的)溢出部分的数值。checksum 附加在 Xmodem 数据包的最後。这种 checksum 并不总能检测出所有错误。在 Xmodem 协议後续版本中, 它被换成 cyclical redundancy check (CRC),以支持更严格的误差控制。(参见:Dyson,Dictionary of Networking) AAAAAAAA
<nowiki>在此插入非格式文本 ==
大标题文字<math>在此插入数学公式</math> == </nowiki>== 链接 ==