Research Article
Secure Collaborative Key Management for Dynamic Groups in Mobile Networks
Table 2
Communication and computation costs for CODH member and master.
| | | | Send | Receive | Exponentiations | Signatures | Verifications |
| General
member | Join, merge | 0 | 1 | 1 | 0 | 1 | | Leave, partition | 0 | 1 | 1 | 0 | 1 |
| Group
master | Join | 1 | m | n + m | 1 | 1 | | Leave, partition | 1 | 0 | | 1 | 0 | | Merge | 1 | 1 | n + m | 1 | 1 |
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