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1. US20190116181 - User authentication method, evaluation device, non-transitory computer-readable storage medium, and user authentication system

官庁
アメリカ合衆国
出願番号 16208583
出願日 04.12.2018
公開番号 20190116181
公開日 18.04.2019
特許番号 11153312
特許付与日 19.10.2021
公報種別 B2
IPC
H04L 29/06
H電気
04電気通信技術
Lデジタル情報の伝送,例.電信通信
29グループH04L1/00~H04L27/00の単一のグループに包含されない配置,装置,回路または方式
02通信制御;通信処理
06プロトコルによって特徴づけられるもの
H04L 9/32
H電気
04電気通信技術
Lデジタル情報の伝送,例.電信通信
9秘密または安全な通信のための配置
32システムの利用者の身元または権限の照合のための手段を含むもの
CPC
H04L 9/3239
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Cryptographic mechanisms or cryptographic; arrangements for secret or secure communication
32including means for verifying the identity or authority of a user of the system ; or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
3236using cryptographic hash functions
3239involving non-keyed hash functions, e.g. modification detection codes [MDCs], MD5, SHA or RIPEMD
H04L 63/0884
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
63Network architectures or network communication protocols for network security
08for supporting authentication of entities communicating through a packet data network
0884by delegation of authentication, e.g. a proxy authenticates an entity to be authenticated on behalf of this entity vis-à-vis an authentication entity
H04L 2463/082
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
2463Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00
082applying multi-factor authentication
出願人 Capy Japan Inc.
発明者 Takanobu Watanabe
Mitsuo Okada
代理人 JCIPRNET
優先権情報 2017173799 11.09.2017 JP
発明の名称
(EN) User authentication method, evaluation device, non-transitory computer-readable storage medium, and user authentication system
要約
(EN)

In an evaluation device, a receiver part receives, from an authentication device, a hash value of a user identifier for identifying a user, which is generated in a terminal unit used for the login by the user, and information indicating a login environment of the terminal unit, which is encrypted in the terminal unit. A decoding part decodes the encrypted information indicating the login environment of the terminal unit. A risk calculation part calculates an evaluation value that indicates a risk of the login being an unauthorized access based on a statistic related to a degree of similarity between the login environment of the terminal unit and a previous login environment by the user corresponding to the hash value. A transmitter part 120b transmits a comparison result between the calculated evaluation value and a predetermined threshold.