Ahto Buldas

Publication Activity (10 Years)

Years Active: 1998-2023
Publications (10 Years): 22

Top Topics

Signature Scheme

Designated Verifier

Top Venues

IACR Cryptol. ePrint Arch.

Publications

Ahto Buldas, Dirk Draheim, Märt Saarepera
A Theory of Secure and Efficient Implementation of Electronic Money. SN Comput. Sci. 4 (6) (2023)
Ahto Buldas, Dirk Draheim, Märt Saarepera
Secure and Efficient Implementation of Electronic Money. FDSE (CCIS Volume) (2022)
Ahto Buldas, Dirk Draheim, Mike Gault, Märt Saarepera
Towards a Foundation of Web3. FDSE (CCIS Volume) (2022)
Ahto Buldas, Dirk Draheim, Mike Gault, Risto Laanoja, Takehiko Nagumo, Märt Saarepera, Syed Attique Shah, Joosep Simm, Jamie Steiner, Tanel Tammet, Ahto Truu
An Ultra-Scalable Blockchain Platform for Universal Asset Tokenization: Design and Implementation. IEEE Access 10 (2022)
Denis Firsov, Ahto Buldas, Ahto Truu, Risto Laanoja
Verified Security of BLT Signature Scheme. IACR Cryptol. ePrint Arch. 2020 (2020)
Denis Firsov, Ahto Buldas, Ahto Truu, Risto Laanoja
Verified security of BLT signature scheme. CPP (2020)
Ahto Buldas, Olga Gadyatskaya, Aleksandr Lenin, Sjouke Mauw, Rolando Trujillo-Rasua
Attribute evaluation on attack trees with incomplete information. Comput. Secur. 88 (2020)
Ahto Buldas, Dirk Draheim, Takehiko Nagumo, Anton Vedeshin
Blockchain Technology: Intrinsic Technological and Socio-Economic Barriers - FDSE'2020 Keynote. FDSE (2020)
Ahto Buldas, Risto Laanoja, Ahto Truu
A Blockchain-Assisted Hash-Based Signature Scheme. IACR Cryptol. ePrint Arch. 2019 (2019)
Ahto Buldas, Denis Firsov, Risto Laanoja, Henri Lakk, Ahto Truu
A New Approach to Constructing Digital Signature Schemes - (Short Paper). IWSEC (2019)
Ahto Buldas, Denis Firsov, Risto Laanoja, Henri Lakk, Ahto Truu
A New Approach to Constructing Digital Signature Schemes (Extended Paper). IACR Cryptol. ePrint Arch. 2019 (2019)
Ahto Buldas, Risto Laanoja, Ahto Truu
A Server-Assisted Hash-Based Signature Scheme. IACR Cryptol. ePrint Arch. 2019 (2019)
Ahto Buldas, Risto Laanoja, Ahto Truu
A Blockchain-Assisted Hash-Based Signature Scheme. NordSec (2018)
Ahto Buldas, Olga Gadyatskaya, Aleksandr Lenin, Sjouke Mauw, Rolando Trujillo-Rasua
Attribute Evaluation on Attack Trees with Incomplete Information. CoRR (2018)
Ahto Buldas, Risto Laanoja, Ahto Truu
Keyless signature infrastructure and PKI: hash-tree signatures in pre- and post-quantum world. Int. J. Serv. Technol. Manag. 23 (1/2) (2017)
Ahto Buldas, Aleksandr Lenin, Jan Willemson, Anton Charnamord
Simple Infeasibility Certificates for Attack Trees. IWSEC (2017)
Ahto Buldas, Matthias Geihs, Johannes Buchmann
Long-Term Secure Time-Stamping Using Preimage-Aware Hash Functions - (Short Version). ProvSec (2017)
Ahto Buldas, Risto Laanoja, Ahto Truu
A Server-Assisted Hash-Based Signature Scheme. NordSec (2017)
Ahto Buldas, Matthias Geihs, Johannes Buchmann
Long-Term Secure Commitments via Extractable-Binding Commitments. ACISP (1) (2017)
Ahto Buldas, Aivo Kalu, Peeter Laud, Mart Oruaas
Server-Supported RSA Signatures for Mobile Devices. ESORICS (1) (2017)
Ahto Buldas, Matthias Geihs, Johannes Buchmann
Long-Term Secure Time-Stamping using Preimage-Aware Hash Functions. IACR Cryptol. ePrint Arch. 2017 (2017)
Ahto Buldas, Märt Saarepera
Are the Current System Engineering Practices Sufficient to Meet Cyber Crime? HCI (22) (2017)
Ahto Buldas, Ahto Truu, Risto Laanoja, Rainer Gerhards
Efficient Record-Level Keyless Signatures for Audit Logs. IACR Cryptol. ePrint Arch. 2014 (2014)
Ahto Buldas, Risto Laanoja, Peeter Laud, Ahto Truu
Bounded Pre-Image Awareness and the Security of Hash-Tree Keyless Signatures. IACR Cryptol. ePrint Arch. 2014 (2014)
Ahto Buldas, Risto Laanoja, Ahto Truu
Efficient Quantum-Immune Keyless Signatures with Identity. IACR Cryptol. ePrint Arch. 2014 (2014)
Ahto Buldas, Risto Laanoja, Ahto Truu
Efficient Implementation of Keyless Signatures with Hash Sequence Authentication. IACR Cryptol. ePrint Arch. 2014 (2014)
Aleksandr Lenin, Ahto Buldas
Limiting Adversarial Budget in Quantitative Security Assessment. GameSec (2014)
Ahto Buldas, Ahto Truu, Risto Laanoja, Rainer Gerhards
Efficient Record-Level Keyless Signatures for Audit Logs. NordSec (2014)
Ahto Buldas, Risto Laanoja, Peeter Laud, Ahto Truu
Bounded Pre-image Awareness and the Security of Hash-Tree Keyless Signatures. ProvSec (2014)
Ahto Buldas, Risto Laanoja, Ahto Truu
Security Proofs for the BLT Signature Scheme. IACR Cryptol. ePrint Arch. 2014 (2014)
Arne Ansper, Ahto Buldas, Margus Freudenthal, Jan Willemson
Protecting a Federated Database Infrastructure against Denial-of-Service Attacks. CRITIS (2013)
Arne Ansper, Ahto Buldas, Margus Freudenthal, Jan Willemson
High-Performance Qualified Digital Signatures for X-Road. NordSec (2013)
Ahto Buldas, Andres Kroonmaa, Risto Laanoja
Keyless Signatures' Infrastructure: How to Build Global Distributed Hash-Trees. IACR Cryptol. ePrint Arch. 2013 (2013)
Ahto Buldas, Aleksandr Lenin
New Efficient Utility Upper Bounds for the Fully Adaptive Model of Attack Trees. GameSec (2013)
Ahto Buldas, Risto Laanoja
Security Proofs for Hash Tree Time-Stamping Using Hash Functions with Small Output Size. ACISP (2013)
Ahto Buldas, Margus Niitsoo
Black-Box Separations and Their Adaptability to the Non-uniform Model. ACISP (2013)
Ahto Buldas, Andres Kroonmaa, Risto Laanoja
Keyless Signatures' Infrastructure: How to Build Global Distributed Hash-Trees. NordSec (2013)
Ahto Buldas, Roman Stepanenko
Upper Bounds for Adversaries' Utility in Attack Trees. GameSec (2012)
Ahto Buldas, Margus Niitsoo
Optimally Tight Security Proofs for Hash-Then-Publish Time-Stamping. ACISP (2010)
Ahto Buldas, Aivo Jürgenson, Margus Niitsoo
Efficiency Bounds for Adversary Constructions in Black-Box Reductions. ACISP (2009)
Ahto Buldas, Sven Laur, Margus Niitsoo
Oracle Separation in the Non-uniform Model. ProvSec (2009)
Ahto Buldas, Margus Niitsoo
Can We Construct Unbounded Time-Stamping Schemes from Collision-Free Hash Functions?. ProvSec (2008)
Ahto Buldas, Sven Laur
Knowledge-Binding Commitments with Applications in Time-Stamping (Full Version). IACR Cryptol. ePrint Arch. 2007 (2007)
Ahto Buldas, Aivo Jürgenson
Does Secure Time-Stamping Imply Collision-Free Hash Functions? ProvSec (2007)
Ahto Buldas, Triinu Mägi
Practical Security Analysis of E-Voting Systems. IWSEC (2007)
Ahto Buldas, Sven Laur
Knowledge-Binding Commitments with Applications in Time-Stamping. Public Key Cryptography (2007)
Ahto Buldas, Peeter Laud, Jaan Priisalu, Märt Saarepera, Jan Willemson
Rational Choice of Security Measures Via Multi-parameter Attack Trees. CRITIS (2006)
Ahto Buldas, Sven Laur
Do Broken Hash Functions Affect the Security of Time-Stamping Schemes? ACNS (2006)
Ahto Buldas, Peeter Laud, Märt Saarepera, Jan Willemson
Universally Composable Time-Stamping Schemes with Audit. IACR Cryptol. ePrint Arch. 2005 (2005)
Ahto Buldas, Peeter Laud, Märt Saarepera, Jan Willemson
Universally Composable Time-Stamping Schemes with Audit. ISC (2005)
Ahto Buldas, Märt Saarepera
On Provably Secure Time-Stamping Schemes. ASIACRYPT (2004)
Arne Ansper, Ahto Buldas, Margus Freudenthal, Jan Willemson
Scalable and Efficient PKI for Inter-Organizational Communication. ACSAC (2003)
Meelis Roos, Ahto Buldas, Jan Willemson
Undeniable Replies for Database Queries. BalticDB&IS (2002)
Ahto Buldas, Peeter Laud, Helger Lipmaa
Eliminating Counterevidence with Applications to Accountable Certificate Management. J. Comput. Secur. 10 (3) (2002)
Arne Ansper, Ahto Buldas, Meelis Roos, Jan Willemson
Efficient Long-Term Validation of Digital Signatures. Public Key Cryptography (2001)
Arne Ansper, Ahto Buldas, Märt Saarepera, Jan Willemson
Improving the Availability of Time-Stamping Services. ACISP (2001)
Ahto Buldas, Helger Lipmaa, Berry Schoenmakers
Optimally Efficient Accountable Time-Stamping. Public Key Cryptography (2000)
Ahto Buldas, Peeter Laud, Helger Lipmaa
Accountable Certificate Management using Undeniable Attestations. IACR Cryptol. ePrint Arch. 2000 (2000)
Ahto Buldas, Peeter Laud, Helger Lipmaa
Accountable certificate management using undeniable attestations. CCS (2000)
Ahto Buldas, Peeter Laud, Helger Lipmaa, Jan Willemson
Time-Stamping with Binary Linking Schemes. CRYPTO (1998)
Ahto Buldas, Peeter Laud
New linking schemes for digital time-stamping. ICISC (1998)