zkDaily - 2026-04-22

零知识证明 zkDaily

ZKP Frontier Tracker 🎯

Wed

04.22

2026

ACTS: Attestations of Contents in TLS Sessions

Paper

https://eprint.iacr.org/2026/755

Pierpaolo Della Monica TLS

Della Monica et al. proposed ACTS, a distributed architecture in their paper, using predicate blind signatures to enable users to prove data retrieved from TLS servers with verifiers only checking standard signatures, avoiding complex schemes like zkSNARK.

Notes

Existing tech like DECO relies on non-standardized schemes like zkSNARK, limiting adoption.
ACTS uses predicate blind signatures, requiring verifiers to check only standard RSA-PSS signatures.
Architecture is compatible with DECO and successors, leaving TLS servers untouched for data confidentiality.
Optimized for practical deployment on commodity hardware with notary policies.
Experimental validation uses PDF documents with standard PADES signatures for transparent verification.
Enhances Web3 data interoperability and usability in existing systems.

Collected by @icerdesign

零知识证明 zkDaily

Q&A Deep Dive 💬

Wed

04.22

2026

What is ACTS?

ACTS is a system that allows users to prove they retrieved specific data from a TLS session, without modifying the TLS server.

Why do we need ACTS?

Existing solutions often require complex schemes like ZK-SNARKs, limiting adoption. ACTS enables verification using only standard signatures, making deployment easier.

What is the core technique behind ACTS?

It is based on predicate blind signatures, allowing users to obtain attestations for TLS data without revealing the content.

Prompted by @icerdesign