Patent ID: 8229114
Filing Date: 2012-07-24
Classification: H04L

Abstract:
1. A device for generating an asymmetrical key pair based on a user identity, including: at least one processor and memory positioned in a key management center, the processor configured for generating a private key calculation parameter and a public key calculation parameter corresponding to each other, storing the private key calculation parameter in the memory, calculating a first user's private key based on an identity provided by the first user, providing the calculated private key to the first user by writing into a media, and publishing the public key calculation parameter, so that a second user can calculate a public key of the first user based on the published public key calculation parameter and the first user's identity by running the public key calculation program stored in a media, in which when calculating the public key and private key, besides the public key calculation parameter and private key calculation parameter, a domain parameter with a layered structure is implemented, in which: