Hybrid PQC Digital Signatures and SSI

Erik Hieta-aho; Valtteri Lipiäinen

Hybrid PQC Digital Signatures and SSI

Research output: Contribution to conference › Other conference contribution › Scientific

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Abstract

Self-sovereign identity (SSI) and digital credentials are becoming more and more practical, especially in Europe, and as such it is essential for them to be secured against the quantum threat. As we know PQC is a relatively modern area of cryptography and so we have decided to implement both a classical and a PQC digital signature scheme in a hybrid implementation within an SSI stack. Therefore, providing the classical security we know and trust while also preparing for the eventual quantum computing attack in the future. We are developing a hybrid PQC digital signature scheme in which we are implementing ML-DSA and ECDSA in parallel. The goals of our project also include the benchmarking and comparison of the hybrid vs PQC vs classical implementations.

Original language	English
Publication status	Published - 15 Jan 2025
MoE publication type	Not Eligible
Event	3rd Post-Quantum Cryptography Conference, PQC 2025 - Thompson Conference Center, University of Texas, Austin, United States Duration: 15 Jan 2025 → 16 Jan 2025 Conference number: 3 https://pkic.org/events/2025/pqc-conference-austin-us/#nav-wednesday

Conference

Conference	3rd Post-Quantum Cryptography Conference, PQC 2025
Abbreviated title	PQC
Country/Territory	United States
City	Austin
Period	15/01/25 → 16/01/25
Internet address	https://pkic.org/events/2025/pqc-conference-austin-us/#nav-wednesday

Keywords

PQC
Post-Quantum Cryptography
Hybrid Cryptography
self-sovereign identity
digital signatures

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title = "Hybrid PQC Digital Signatures and SSI",

abstract = "Self-sovereign identity (SSI) and digital credentials are becoming more and more practical, especially in Europe, and as such it is essential for them to be secured against the quantum threat. As we know PQC is a relatively modern area of cryptography and so we have decided to implement both a classical and a PQC digital signature scheme in a hybrid implementation within an SSI stack. Therefore, providing the classical security we know and trust while also preparing for the eventual quantum computing attack in the future. We are developing a hybrid PQC digital signature scheme in which we are implementing ML-DSA and ECDSA in parallel. The goals of our project also include the benchmarking and comparison of the hybrid vs PQC vs classical implementations.",

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T1 - Hybrid PQC Digital Signatures and SSI

AU - Hieta-aho, Erik

AU - Lipiäinen, Valtteri

N1 - Conference code: 3

PY - 2025/1/15

Y1 - 2025/1/15

N2 - Self-sovereign identity (SSI) and digital credentials are becoming more and more practical, especially in Europe, and as such it is essential for them to be secured against the quantum threat. As we know PQC is a relatively modern area of cryptography and so we have decided to implement both a classical and a PQC digital signature scheme in a hybrid implementation within an SSI stack. Therefore, providing the classical security we know and trust while also preparing for the eventual quantum computing attack in the future. We are developing a hybrid PQC digital signature scheme in which we are implementing ML-DSA and ECDSA in parallel. The goals of our project also include the benchmarking and comparison of the hybrid vs PQC vs classical implementations.

AB - Self-sovereign identity (SSI) and digital credentials are becoming more and more practical, especially in Europe, and as such it is essential for them to be secured against the quantum threat. As we know PQC is a relatively modern area of cryptography and so we have decided to implement both a classical and a PQC digital signature scheme in a hybrid implementation within an SSI stack. Therefore, providing the classical security we know and trust while also preparing for the eventual quantum computing attack in the future. We are developing a hybrid PQC digital signature scheme in which we are implementing ML-DSA and ECDSA in parallel. The goals of our project also include the benchmarking and comparison of the hybrid vs PQC vs classical implementations.

KW - PQC

KW - Post-Quantum Cryptography

KW - Hybrid Cryptography

KW - self-sovereign identity

KW - digital signatures

UR - https://pkic.org/events/2025/pqc-conference-austin-us/THU_BREAKOUT_1400_Erik-Hieta-aho_Hybrid-PQC_Digital-Signatures-and-SSI.pdf

UR - https://youtu.be/H6aJo3ugmys

M3 - Other conference contribution

T2 - 3rd Post-Quantum Cryptography Conference, PQC 2025

Y2 - 15 January 2025 through 16 January 2025

ER -

Hybrid PQC Digital Signatures and SSI

Abstract

Conference

Keywords

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