| Strongly Unforgeable Signatures and Hierarchical Identity-Based Signatures from Lattices without Random Oracles Recent countries visiting this post |  |
 | 8 | United States |
 | 4 | |
 | 1 | China |
| Strongly Unforgeable Signatures and Hierarchical Identity-Based Signatures from Lattices without Random Oracles Recent countries visiting this post | |
| 8 | United States |
| 4 | |
| 1 | China |