Blog
Launch announcements, deep dives on individual modes, and engineering walkthroughs.
How to encrypt a master secret to a T-of-N quorum so no single party can decrypt alone — for inheritance, corporate escrow, and sealed archives.
How to add multi-stakeholder threshold signing to your release pipeline — no HSM, no single point of failure, fully open-source.
How Merkle transparency logs turn one-off signatures into a verifiable history — and why every signing system should anchor to one.
Confium handles threshold signing + transparency logs. RNP handles standard OpenPGP (RFC 9580). Together they form a complete crypto stack.
How an independent auditor verifies that a published artifact is in the log — no trust in the log operator required.
Working code for composite signing, transparency log anchoring, attribute predicates, and CMS envelopes in Python.
Confium is an open-source framework for multi-stakeholder threshold cryptography. Four deployment modes, post-quantum-ready, transparent by design.
How composite signatures make PQ migration a software upgrade, not an HSM replacement. A four-phase timeline and worked example.
Mode 3 deep dive. Sovereign PKI gives institutions control over certificate formats, delegation, archival, and quorum composition — without trusting any single party.