ZeroEcho · Cryptography & PKI

Classic foundations.
Post-quantum horizons.

One framework for classic and post-quantum cryptography. Build with the Java SDK, protect your content, or operate a certificate authority on the same foundation.

Explore the framework → Read the API ↗

Classic + PQCKeys, signatures & KEMs

X.509 & PKICertificates & authority services

Java 25Modular framework & SDK

Find your way in.

From the first API call to operating your own certificate authority.

About ZeroEcho →

Build

Discover algorithms, manage keys, sign, verify and encapsulate through a consistent Java API.

Library & SDK →

Understand

Learn what the cryptography protects, how the primitives fit together and where the limits are.

Cryptography primer →

Operate

Deploy the certificate authority, configure issuance and enrollment, and manage its lifecycle.

Deployment guides →

Extend

Connect storage, signing and cryptographic providers through explicit service-provider contracts.

Extension points →

One foundation.
More than one application.

ZeroEcho starts with a cryptographic library. Applications build on it, from small utilities to a full certificate authority.

Certificate authority

Authorities, profiles, issuance, revocation, CRL/OCSP, ACME, approvals and audit evidence.

Explore the applications →

Content protection

Authenticated content encryption, steganography and covert channels use the same underlying framework.

Explore the extensions →

Go straight to the source contracts.

Generated Java documentation, organized by module.

API reference guide →