| Method and apparatus for validating a digital signature A Ansper, A Buidas, M Roos, J Villemson US Patent 7,178,029, 2007 | 52 | 2007 |
| Efficient long-term validation of digital signatures A Ansper, A Buldas, M Roos, J Willemson Public Key Cryptography: 4th International Workshop on Practice and Theory …, 2001 | 43 | 2001 |
| Improving the availability of time-stamping services A Ansper, A Buldas, M Saarepera, J Willemson Information Security and Privacy: 6th Australasian Conference, ACISP 2001 …, 2001 | 37 | 2001 |
| Security and Trust for the Norwegian E-Voting Pilot Project E-valg 2011 A Ansper, S Heiberg, H Lipmaa, TA Øverland, F Van Laenen Nordic Conference on Secure IT Systems, 207-222, 2009 | 33 | 2009 |
| High-performance qualified digital signatures for X-Road A Ansper, A Buldas, M Freudenthal, J Willemson Nordic Conference on Secure IT Systems, 123-138, 2013 | 21 | 2013 |
| A secure and scalable infrastructure for inter-organizational data exchange and eGovernment applications J Willemson, A Ansper 2008 Third International Conference on Availability, Reliability and …, 2008 | 17 | 2008 |
| Scalable and efficient PKI for inter-organizational communication A Ansper, A Buldas, M Freudenthal, J Willemson 19th Annual Computer Security Applications Conference, 2003. Proceedings …, 2003 | 13 | 2003 |
| E-voting concept security: analysis and measures A Ansper, A Buldas, M Oruaas, J Priisalu, A Veldre, J Willemson, ... Technical Report EH-02-01, Estonian National Electoral Committee, 2003 | 10 | 2003 |
| E-voting conception security: analysis and measures A Ansper, A Buldas, M Oruaas, J Priisalu, A Veldre, J Willemson, ... National Electoral Committee, Tallinn, Available online at: http://www. vvk …, 2003 | 7 | 2003 |
| E-state from a data security perspective A Ansper Tallinn University of Technology, Faculty of Systems Engineering, Department …, 2001 | 6 | 2001 |
| General linking schemes for digital time-stamping A Ansper, A Buldas, J Willemson Technical Report, 1999 | 3 | 1999 |
| Protecting a Federated Database Infrastructure Against Denial-of-Service Attacks A Ansper, A Buldas, M Freudenthal, J Willemson Critical Information Infrastructures Security: 8th International Workshop …, 2013 | 2 | 2013 |
| Infosüsteemide turve: Turvarisk V Hanson, A Buldas Küberneetika, 1997 | 2 | 1997 |
| Designing a governmental backbone A Ansper Information Security Technology for Applications: 16th Nordic Conference on …, 2012 | 1 | 2012 |
