Abstract: A first login request for the first service is received at a first server that provides a first service and from a terminal. Device identifier information of the terminal is generated by a hardware processor at the first server. The device identifier information of the terminal is associated, by the hardware processor at the first server, with first login state information. The first login state information indicates that the terminal has logged into the first server. The device identifier information and the first login state information are transmitted to a second server. The second server provides a second service that has a trusted login relationship with the first service.

Abstract: A first login request for the first service is received at a first server that provides a first service and from a terminal. Device identifier information of the terminal is generated by a hardware processor at the first server. The device identifier information of the terminal is associated, by the hardware processor at the first server, with first login state information. The first login state information indicates that the terminal has logged into the first server. The device identifier information and the first login state information are transmitted to a second server. The second server provides a second service that has a trusted login relationship with the first service.

Abstract: A first login request for the first service is received at a first server that provides a first service and from a terminal. Device identifier information of the terminal is generated by a hardware processor at the first server. The device identifier information of the terminal is associated, by the hardware processor at the first server, with first login state information. The first login state information indicates that the terminal has logged into the first server. The device identifier information and the first login state information are transmitted to a second server. The second server provides a second service that has a trusted login relationship with the first service.

Abstract: A first login request for the first service is received at a first server that provides a first service and from a terminal. Device identifier information of the terminal is generated by a hardware processor at the first server. The device identifier information of the terminal is associated, by the hardware processor at the first server, with first login state information. The first login state information indicates that the terminal has logged into the first server. The device identifier information and the first login state information are transmitted to a second server. The second server provides a second service that has a trusted login relationship with the first service.

Abstract: A digital certificate of a user is collected. A digest computation of a collecting result of the digital certificate is performed to generate a digital certificate digest of the user. The digital certificate digest is cached. In response to an operation of the user, a service request containing the cached digital certificate digest is transmitted to a service server such that when a service corresponding to the service request is a service for which the digital certificate needs to be verified, the service server executes the service when the verification passes through verification of the digital certificate digest. The techniques of the present disclosure execute the verification operation of the digital certificate along with specific service operations, which reduce the number of certificate verifications and the number of requests for executing the specific service.

Abstract: A first login request for the first service is received at a first server that provides a first service and from a terminal. Device identifier information of the terminal is generated by a hardware processor at the first server. The device identifier information of the terminal is associated, by the hardware processor at the first server, with first login state information. The first login state information indicates that the terminal has logged into the first server. The device identifier information and the first login state information are transmitted to a second server. The second server provides a second service that has a trusted login relationship with the first service.

Abstract: A digital certificate of a user is collected. A digest computation of a collecting result of the digital certificate is performed to generate a digital certificate digest of the user. The digital certificate digest is cached. In response to an operation of the user, a service request containing the cached digital certificate digest is transmitted to a service server such that when a service corresponding to the service request is a service for which the digital certificate needs to be verified, the service server executes the service when the verification passes through verification of the digital certificate digest. The techniques of the present disclosure execute the verification operation of the digital certificate along with specific service operations, which reduce the number of certificate verifications and the number of requests for executing the specific service.