Security Proofs for Hash Tree Time-Stamping Using Hash Functions with Small Output Size. - Ahto Buldas; Risto Laanoja (ACISP, 2013)

Keyless Signatures' Infrastructure: How to Build Global Distributed Hash-Trees. - Ahto Buldas; Andres Kroonmaa; Risto Laanoja (IACR Cryptol. ePrint Arch., 2013)

Bounded Pre-Image Awareness and the Security of Hash-Tree Keyless Signatures. - Ahto Buldas; Risto Laanoja; Peeter Laud; Ahto Truu (IACR Cryptol. ePrint Arch., 2014)

Efficient Quantum-Immune Keyless Signatures with Identity. - Ahto Buldas; Risto Laanoja; Ahto Truu (IACR Cryptol. ePrint Arch., 2014)

Efficient Implementation of Keyless Signatures with Hash Sequence Authentication. - Ahto Buldas; Risto Laanoja; Ahto Truu (IACR Cryptol. ePrint Arch., 2014)

Security Proofs for the BLT Signature Scheme. - Ahto Buldas; Risto Laanoja; Ahto Truu (IACR Cryptol. ePrint Arch., 2014)

Efficient Record-Level Keyless Signatures for Audit Logs. - Ahto Buldas; Ahto Truu; Risto Laanoja; Rainer Gerhards (IACR Cryptol. ePrint Arch., 2014)

Keyless signature infrastructure and PKI: hash-tree signatures in pre- and post-quantum world. - Ahto Buldas; Risto Laanoja; Ahto Truu (Int. J. Serv. Technol. Manag., 2017)

A New Approach to Constructing Digital Signature Schemes - (Short Paper). - Ahto Buldas; Denis Firsov; Risto Laanoja; Henri Lakk; Ahto Truu (IWSEC, 2019)

A New Approach to Constructing Digital Signature Schemes (Extended Paper). - Ahto Buldas; Denis Firsov; Risto Laanoja; Henri Lakk; Ahto Truu (IACR Cryptol. ePrint Arch., 2019)

A Server-Assisted Hash-Based Signature Scheme. - Ahto Buldas; Risto Laanoja; Ahto Truu (IACR Cryptol. ePrint Arch., 2019)

A Blockchain-Assisted Hash-Based Signature Scheme. - Ahto Buldas; Risto Laanoja; Ahto Truu (IACR Cryptol. ePrint Arch., 2019)

Verified Security of BLT Signature Scheme. - Denis Firsov; Ahto Buldas; Ahto Truu; Risto Laanoja (IACR Cryptol. ePrint Arch., 2020)

An Ultra-Scalable Blockchain Platform for Universal Asset Tokenization: Design and Implementation. - Ahto Buldas; Dirk Draheim; Mike Gault; Risto Laanoja; Takehiko Nagumo; Märt Saarepera; Syed Attique Shah; Joosep Simm; Jamie Steiner; Tanel Tammet; Ahto Truu (IEEE Access, 2022)