LIGHTWEIGHT ENCRYPTION ALGORITHM SECURITY APPARATUS BASED ON HARDWARE AUTHENTICATION CHIP

摘要

The present invention relates to a lightweight encryption algorithm security apparatus based on a hardware authentication chip, comprising: a memory which is divided into a plurality of security partitions which store a plurality of second part key elements used for generating a symmetrical key which may be generated through a first part key element; a security acceleration chip which stores the first part key element, and performs encryption of a plain text or decryption of a cryptogram based on a symmetrical key generated by one of the first part key element and the plurality of second part key elements; and a processor which selects one of the plurality of security partitions in accordance with a request for encryption or decryption to bring the relevant second part key element and to provide it to the security acceleration chip. Accordingly, the present invention is able to manage a secret key used for a lightweight encryption algorithm and to strengthen security.