bohdat/group-signature-cl-scheme

Group Signature Camenisch-Lysyanskaya Scheme C++, Pairing-Based Cryptography library

#Dynamic Group Signature library

This is the repository for Dynamic Group Signature by Camenisch-Lysyanskaya scheme.

###External dependencies: Your system should have GMP lib 6.0.0 and PBC lib 0.5.14. ###Configuration Pairing parameters was defined to default as PBClib example. ###How it works Dynamic Group Signature Scheme

This scheme involves three types of participants:

group manger
group member
verifier

A dynamic group signature scheme consists of five polynomial-time algorithms/protocols:

• Key generation

Generation of group public key, member's secret issuer key and member's secret opener key.

• Join protocol

Registration of new group users, as a result, each user receives a own secret key from manager, who knows the secret issuer key.

• Signature generation

Each member of group with own secret key can produce the group signature on default message on behalf of group.

• Signature verification

Everyone who know group public key can verify the group signature.

• Opening procedure

Only group manager with secret opener key can open who is a singer on default group signature.

group-signature-cl-scheme's Issues

Which paper does this scheme come from?

Which paper does this scheme come from?

Impossible to use list with GroupMemberAPI

std::list<GroupMemberAPI> member_list ;

for( i=0; i< n_users; i++){
       GroupMemberAPI m;
       m.CreateNewMember(gpk);
       member_list.push_back(m);

}

for (auto it=member_list.begin(); it != member_list.end(); ++it){
        it.CreateJoinRequest() // raise  error: ‘struct std::_List_iterator<GroupMemberAPI>’ has no member named ‘CreateJoinRequest’

}

Everything i try to do with it gives segmentation fault.

Also, it is normal that if in the first loop if print out the m.SerializeMember() all the members are equals??

Which paper does this scheme come from? Thanks！

Which paper does this scheme come from? Thanks！