Group signatures (Computer security)

found: Work cat.: Ateniese, G. On the difficulty of coalition-resistance in group signature schemes, 1999:p. 1 (A group signature ... allows the signer to demonstrate knowledge of a secret with respect to a specific document. A group signature is publicly verifiable: it can be validated by anyone in possession of a group public key. However, group signatures are anonymous in that no one, with the exception of a designated group manager, can determine the identity of the signer. Furthermore, group signatures are unlinkable, which makes it computationally hard to establish whether or not multiple signatures are produced by the same group member)

found: ACM Conference on Computer and Communications Security (8th : 2001 : Philadelphia, Pa.). Proceedings of the 8th ACM Conference on Computer and Communications Security, 2001:p. 225 (A group signature scheme allows a group member to sign messages anonymously on behalf of the group, while in case of a dispute, a designated entity can reveal the identity of a signature's originator. Group signature schemes can be used as a basic building block for many security applications such as electronic banking systems and electronic voting)

found: Encyclopedia of cryptography and security, 2005:p. 250 (Group signatures are digital signatures where signers can establish groups such that each member of the group can produce signatures anonymously on behalf of the group)

found: ISW'99 (1999 : Kuala Lumpur, Malaysia). Information security, 1999:p. 47 (A group signature is a digital signature that allows a group member to sign a message on behalf of the group so that (i) only group members are able to sign on behalf of the group, (ii) it is not possible to determine which group member made the signature, and (iii) in case of disputes, the group authority can "open" the signature to reveal the identity of the signer)