We are pleased to announce our latest publication, “Universally Composable and Round-Optimal Password-Hardened Encryption”, which will be presented at ASIACRYPT'25.

Abstract:

We propose the first UC model for Threshold Password-Hardened Encryption (TPHE), unifying and strengthening its security definitions. Along the way, we found a flaw in the security proof of the original TPHE scheme, leaving it without a solid guarantee. Finally, we design the first provably secure, round-optimal TPHE scheme.

Stay tuned for more details and discussions on this topic at ASIACRYPT!