http://videntity.org/images/openid-logo.gifopenid" TITLE="尝试新事物 openid" />使用不同论坛、blog、邮箱要不同的注册不同的账户，然后每次还要登录。可否统一起来呢？比如，你的ms passport不是可以访问msn messenger，hotmail等多个应用吗？

 

openid就想解决这样的问题。

OpenID从广义来说是“分布式身份识别系统”及其规范的总称；从狭义来说，一个OpenID账号的表现形式就是一条URL。与传统ID的最大区别在于，它可以不依赖任何公司或组织而存在，可以在所有支持OpenID规范的站点使用，而你需要做的只是证明“拥有这条URL”。

　　This is a decentralized identity system, but one that's actually decentralized and doesn't entirely crumble if one company turns evil or goes out of business.

　　An OpenID identity is just a URL. You can have multiple identities in the same way you can have multiple URLs. All OpenID does is provide a way to prove that you own a URL (identity). And it does this without passing around your password, your email address, or anything you don't want it to. There's no profile exchange component at all: your profiile is your identity URL, but recipients of your identity can then learn more about you from any public, semantically interesting documents linked thereunder (FOAF, RSS, Atom, vCARD, etc.).

　　Anybody can run their own site using OpenID, and anybody can be an OpenID server, and they all work with each other without having to register with or pay anybody to "get started". An owner of a URL can pick which OpenID server to use.

 

大家可以到 www.openid.cn 注册一个，然后用它访问 beta.zooomr.com 。此外，类似提供openid的网站还有 http://videntity.org https://www.myopenid.com 等