Multi-platform transparent client-side encryption for your cloud files
AWS Encryption SDK
Free and open-source PDF signing and verification application.
Tiny application which allows encrypting basic text.
FIDO® Certified StrongKey FIDO Server (SKFS)
Digital Signature for PDF documents in Spanish
Compiled into a single .jar file. Tiny Password Manager. Portable
Java native access for pc/sc, pkcs11, openct based on JNA