| A Distributed Public Key Infrastructure Based on Threshold Cryptography for the HiiMap Next Generation Internet Architecture Recent countries visiting this post |  |
 | 4 | United States |
 | 2 | Russian Federation |
| A Distributed Public Key Infrastructure Based on Threshold Cryptography for the HiiMap Next Generation Internet Architecture Recent countries visiting this post | |
| 4 | United States |
| 2 | Russian Federation |