Overview#

Group Signatures are Digital Signature schemes for allowing a member of a group to anonymously sign a message on behalf of the group.

The concept was first introduced by David Chaum and Eugene van Heyst in 1991. For example, a Group Signatures scheme could be used by an employee of a large company where it is sufficient for a verifier to know a message was signed by an employee, but not which particular employee signed it.

Another application is for keycard access to restricted areas where it is inappropriate to track individual employee's movements, but necessary to secure areas to only employees in the group.

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« This page (revision-2) was last changed on 28-Aug-2016 13:34 by jim