| 2025 | IIWAS | On the Relationship Between Crude, Adjusted, Confounder and Latent Coefficients in Linear Regression. | Sijo Arakkal Peious, Ahto Buldas, Dirk Draheim |
| 2020 | CPP | Verified security of BLT signature scheme. | Denis Firsov, Ahto Buldas, Ahto Truu, Risto Laanoja |
| 2019 | IWSEC | A New Approach to Constructing Digital Signature Schemes - (Short Paper). | Ahto Buldas, Denis Firsov, Risto Laanoja, Henri Lakk, Ahto Truu |
| 2017 | ACISP | Long-Term Secure Commitments via Extractable-Binding Commitments. | Ahto Buldas, Matthias Geihs, Johannes Buchmann |
| 2017 | ESORICS | Server-Supported RSA Signatures for Mobile Devices. | Ahto Buldas, Aivo Kalu, Peeter Laud, Mart Oruaas |
| 2017 | HCI | Are the Current System Engineering Practices Sufficient to Meet Cyber Crime? | Ahto Buldas, Mrt Saarepera |
| 2017 | IWSEC | Simple Infeasibility Certificates for Attack Trees. | Ahto Buldas, Aleksandr Lenin, Jan Willemson, Anton Charnamord |
| 2017 | ProvSec | Long-Term Secure Time-Stamping Using Preimage-Aware Hash Functions - (Short Version). | Ahto Buldas, Matthias Geihs, Johannes Buchmann |
| 2014 | ProvSec | Bounded Pre-image Awareness and the Security of Hash-Tree Keyless Signatures. | Ahto Buldas, Risto Laanoja, Peeter Laud, Ahto Truu |
| 2013 | ACISP | Security Proofs for Hash Tree Time-Stamping Using Hash Functions with Small Output Size. | Ahto Buldas, Risto Laanoja |
| 2013 | ACISP | Black-Box Separations and Their Adaptability to the Non-uniform Model. | Ahto Buldas, Margus Niitsoo |
| 2013 | CRITIS | Protecting a Federated Database Infrastructure against Denial-of-Service Attacks. | Arne Ansper, Ahto Buldas, Margus Freudenthal, Jan Willemson |
| 2010 | ACISP | Optimally Tight Security Proofs for Hash-Then-Publish Time-Stamping. | Ahto Buldas, Margus Niitsoo |
| 2009 | ACISP | Efficiency Bounds for Adversary Constructions in Black-Box Reductions. | Ahto Buldas, Aivo Jrgenson, Margus Niitsoo |
| 2009 | ProvSec | Oracle Separation in the Non-uniform Model. | Ahto Buldas, Sven Laur, Margus Niitsoo |
| 2008 | ProvSec | Can We Construct Unbounded Time-Stamping Schemes from Collision-Free Hash Functions?. | Ahto Buldas, Margus Niitsoo |
| 2007 | IWSEC | Practical Security Analysis of E-Voting Systems. | Ahto Buldas, Triinu Mgi |
| 2007 | PKC | Knowledge-Binding Commitments with Applications in Time-Stamping. | Ahto Buldas, Sven Laur |
| 2007 | ProvSec | Does Secure Time-Stamping Imply Collision-Free Hash Functions? | Ahto Buldas, Aivo Jrgenson |
| 2006 | ACNS | Do Broken Hash Functions Affect the Security of Time-Stamping Schemes? | Ahto Buldas, Sven Laur |
| 2006 | CRITIS | Rational Choice of Security Measures Via Multi-parameter Attack Trees. | Ahto Buldas, Peeter Laud, Jaan Priisalu, Mrt Saarepera, Jan Willemson |
| 2004 | ASIACRYPT | On Provably Secure Time-Stamping Schemes. | Ahto Buldas, Mrt Saarepera |
| 2003 | ACSAC | Scalable and Efficient PKI for Inter-Organizational Communication. | Arne Ansper, Ahto Buldas, Margus Freudenthal, Jan Willemson |
| 2001 | ACISP | Improving the Availability of Time-Stamping Services. | Arne Ansper, Ahto Buldas, Mrt Saarepera, Jan Willemson |
| 2001 | PKC | Efficient Long-Term Validation of Digital Signatures. | Arne Ansper, Ahto Buldas, Meelis Roos, Jan Willemson |
| 2000 | CCS | Accountable certificate management using undeniable attestations. | Ahto Buldas, Peeter Laud, Helger Lipmaa |
| 2000 | PKC | Optimally Efficient Accountable Time-Stamping. | Ahto Buldas, Helger Lipmaa, Berry Schoenmakers |
| 1998 | CRYPTO | Time-Stamping with Binary Linking Schemes. | Ahto Buldas, Peeter Laud, Helger Lipmaa, Jan Willemson |
| 1998 | ICISC | New linking schemes for digital time-stamping. | Ahto Buldas, Peeter Laud |