Research Article
Audit Outsourced Data in Internet of Things
Table 2
Comparison of computation overhead for different entities at different stages.
| Stage entity | Data outsourcing | TPA audit | Insert | Delete | Modify |
| User side | Our | + + | 0 | + + | | + + | Rao’s | + + | 0 | + + + | + + | + + + | CSP side | Our | + + + | + | + + | + | + + | Rao’s | + | + | + | + | + | TPA side | Our | 0 | + + + | + | + | + | Rao’s | | + + | | | |
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