Single-point operation method and device

A single-point operation method and device are disclosed. The method includes: a first application executes a first operation, the first operation being one of a login operation and a logout operation; after successfully performing the first operation, the first application sends a first broadcast, the first broadcast carrying a set of shared user information including user authentication information used in performing the first operation, the protection level of the first broadcast being declared as a signature level signed as a first key; the second application receives the first broadcast and performs corresponding processing, wherein a broadcast receiver authority of the second application is set to the first key. By applying the invention, single sign-on/sign-off with good safety andindependent of network environment can be realized. 本发明公开了单点操作方法和装置。所述方法包括：第应用执行第操作，所述第操作为登录操作和注销操作中的者；成功执行所述第操作后，所述第应用发送第广播，所述第广播携带组共享用户信息，该组共享用户信息包括执行所述第操作时使用的用户身份验证信息，所述第广播的保护级别被声明为签名为第密钥的签名级别；第二应用接收所述第广播并执行相应处理，其中，所述第二应用的