METHOD AND APPARATUS FOR CARRYING OUT SECURE MULTI-PARTY COMPUTATION BY MEANS OF CERTIFICATE ISSUING

摘要

Provided in the embodiments of the present description are a method and apparatus for realizing secure multi-party computation by means of certificate distribution. According to the solution, task groups are formed by means of pre-configuration, and group identifiers are allocated. A trusted certificate generator generates a certificate chain and a private key for a group identifier, wherein the certificate chain comprises a root certificate and a corresponding public key certificate, and the public key certificate and a private key match, and constitute a certificate pair. Then, the trusted certificate generator distributes the root certificate and the certificate pair to all trusted computation units which have been authenticated and which operate respective computation tasks corresponding to the group identifier. In addition, the root certificate is also distributed to a user terminal requesting a computation service of the task group. Thus, secure multi-party communication can be carried out between the user terminal with the root certificate and the trusted computation units with the root certificate and the certificate pair by means of a TLS protocol.