The invention relates to a cloud service accessing
gateway system and a cloud service accessing method. The cloud service accessing
gateway system comprises a
client side, a cloud service accessing gateway and a cloud resource
server. The cloud service accessing gateway comprises three functional
layers including a user
interaction layer, a safety certification layer and a single sign-on layer. According to requirements on security and management of the cloud service accessing
gateway system, frequent
data transmission and synchronous
information processing are performed among the cloud service accessing gateway, the
client side and the cloud resource
server, so that coordination action of cryptographic
authentication and single sign-on is realized. The cloud service accessing method includes: a user of the
client side logins in the cloud service accessing gateway
system to get login
authentication via conversation initializing units like request interaction, resolution, message audit and resource
authorization; the user logins in the cloud service accessing gateway to request a cloud service; and the user logins in the cloud service accessing gateway for cloud service migration. Via forms of one-time registration, one-time login-in and multiple times of accessing, procedures for the user to use the cloud service are simplified, and great convenient conditions are provided to management of
cloud resources.