CPC Subgroup
G06F 21/34 involving the use of external additional devices, e.g. dongles or smart cards
Full Title
Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity > Authentication, i.e. establishing the identity or authorisation of security principals > User authentication > involving the use of external additional devices, e.g. dongles or smart cards
1 direct subcode
Child Classifications
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- G06F 21/35 communicating wirelessly