Samsung Sds Co., Ltd.

Heung Sik Chae

Kyung Jin Kim

Sang Hyeon Kim

Nyun Soo Hyun

Yeong Min Seo

Mun Seok Yang

A digital identity management method based on a blockchain-based technology is provided. In some exemplary embodiments, the method comprises: performing a first process for storing identity identification information of a subscription request in a first block of a blockchain in response to the subscription request from a service request device and then obtaining a block hash value of the first block as a result of performing the first process, performing a second process for storing the block hash value of the first block and data of authentication information of the subscription request in a second block of the blockchain and then obtaining a block hash value of the second block as a result of performing the second process, and inserting the block hash value of the second block into a digital identity data structure as a result of processing the subscription request.

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Seoul, South Korea

Heung Sik Chae