enseal

enseal Secure, ephemeral secret sharing for developers. Stop pasting secrets into Slack. enseal makes the secure path faster than the insecure one — share .env files and secrets through encrypted, single-use channels with one command and zero setup. sender $ enseal share .env Share code:...

sharemylogin

ShareMyLogin Open Source This is the public source code for ShareMyLogin.com. What is ShareMyLogin? ShareMyLogin is a secure tool for sharing sensitive information like passwords, API keys, or config secrets. The Problem Sending a password over Slack, Email, or WhatsApp creates a permanent record...

Cryptanalysis of a Class of Ideal Secret Sharing Schemes Based on the CRT for Polynomial Rings

Based on the CRT for polynomial rings, Yang, Zhu, Fu and Xia ISIT 2026 proposed a compartmented secret sharing scheme for the compartmented access structure with lower bounds, claiming it can be ideal. We exhibit three families of unauthorized subsets that reconstruct the secret. The scheme is...

Quantum Secret Sharing and Error Correction Vs No-Cloning

Secret sharing is ubiquitous throughout cryptography. All possible access structures are classically feasible, and in the case of threshold access structures, the protocols are even very efficient. However, when moving to the quantum setting, the no-cloning theorem shows that many access structur...

Quantum Leakage Resilience of Shamir Secret Sharing

We initiate the study of quantum leakage resilience of unmodified Shamir secret sharing over prime fields. A well-studied leakage model for Shamir's secret sharing classically is single-bit local leakage from each share. We consider its quantum analogue where, for each party, a local leakage...

A Three-Party W-State Quantum Secret Sharing Protocol with X-Gate Encoding and Forbidden-Outcome Detection

We develop a new three-party quantum secret-sharing QSS protocol based on a three-qubit W state. This protocol encodes the secret-sequence bits using X gates and employs randomly selected Hadamard operations and measurement bases to generate information and security-test rounds. We evaluate the...

Physalia: Redistribution-Resistant Content Protection for Decentralized Storage

In decentralized storage systems, access control is often implemented by encrypting the data before upload and sharing the decryption key with authorized parties. A leaked key, however, makes the data publicly accessible, which lowers the barrier to content piracy below that of traditional system...

On the Leakage of Massey Secret Sharing Schemes under Linear Computations

Leakage attacks on secret sharing schemes exploit partial information about individual shares to recover the underlying secret. In coding theory, linear exact repair schemes LERSs enable the recovery of one codeword symbol from a small amount of information obtained from the remaining symbols,...

From Noise to Meaning: Meaningful Secret Sharing with Tamper Detection for Facial Recognition

Popularity of AI-based face recognition system directly demands protection of sensitive biometric data used for training. Visual secret sharing is an interesting idea, as it splits facial images into secret shares that look random and spread across many institutions. However, these shares look li...

SoK: Cryptographic Key Recovery for Cryptoasset Custody and Financial Technologies

Cryptoasset systems often bind cryptographic key control to financial control: losing a wallet seed, custody share, hardware device, or smart-account credential can remove spend authority, while compromised recovery can enable theft. Existing work treats recovery through separate vocabularies--ke...

Distributed Point Functions and Function Secret Sharing

A distributed point function DPF is a cryptographic primitive that enables compressed additive sharing of a secret weight-1 vector equivalently, a point function across two or more parties. The appealing lightweight structure of DPF constructions has enabled a wide range of applications. These...

Construction of a Class of Communication-Efficient Quantum Secret Sharing Schemes

Quantum secret sharing is a fundamental technique in quantum cryptography. However, in practical quantum networks, it still faces several bottlenecks, such as high quantum communication cost and low transmission efficiency. To reduce the communication cost, ramp quantum secret sharing schemes hav...

pyquorum: Timing side‑channel in mul_mod

ImpactThe mulmod function implements multiplication via a binary expansion loop whose execution time depends on the Hamming weight of the second operand the exponent. An attacker who can measure the time of secret‑sharing operations e.g., via a remote service could progressively recover the value...

PYSEC-2026-3028 pyquorum: Timing side‑channel in mul_mod

Impact The mulmod function implements multiplication via a binary expansion loop whose execution time depends on the Hamming weight of the second operand the exponent. An attacker who can measure the time of secret‑sharing operations e.g., via a remote service could progressively recover the valu...

PT-2026-59650

Impact The mul mod function implements multiplication via a binary expansion loop whose execution time depends on the Hamming weight of the second operand the exponent. An attacker who can measure the time of secret‑sharing operations e.g., via a remote service could progressively recover the...

CVE-2026-44368

PyQuorum is a cryptographic library for secret sharing and key management. Prior to 0.2.1, the mulmod function implements multiplication via a binary expansion loop whose execution time depends on the Hamming weight of the second operand the exponent. An attacker who can measure the time of...

CVE-2026-44368

PyQuorum is a cryptographic library for secret sharing and key management. Prior to 0.2.1, the mulmod function implements multiplication via a binary expansion loop whose execution time depends on the Hamming weight of the second operand the exponent. An attacker who can measure the time of...

CVE-2026-44368 PyQuorum: Timing side‑channel in mul_mod

PyQuorum is a cryptographic library for secret sharing and key management. Prior to 0.2.1, the mulmod function implements multiplication via a binary expansion loop whose execution time depends on the Hamming weight of the second operand the exponent. An attacker who can measure the time of...

CVE-2026-44368 PyQuorum: Timing side‑channel in mul_mod

PyQuorum is a cryptographic library for secret sharing and key management. Prior to 0.2.1, the mulmod function implements multiplication via a binary expansion loop whose execution time depends on the Hamming weight of the second operand the exponent. An attacker who can measure the time of...

CVE-2026-44368 PyQuorum: Timing side‑channel in mul_mod

PyQuorum is a cryptographic library for secret sharing and key management. Prior to 0.2.1, the mulmod function implements multiplication via a binary expansion loop whose execution time depends on the Hamming weight of the second operand the exponent. An attacker who can measure the time of...