CPC Subgroup
G06F 21/31 User authentication
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
9 direct subcodes
Child Classifications
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- G06F 21/32 using biometric data, e.g. fingerprints, iris scans or voiceprints
- G06F 21/33 using certificates
- G06F 21/34 involving the use of external additional devices, e.g. dongles or smart cards
- G06F 21/36 by graphic or iconic representation
- G06F 21/40 by quorum, i.e. whereby two or more security principals are required
- G06F 21/41 where a single sign-on provides access to a plurality of computers
- G06F 21/42 using separate channels for security data