NSign (/ˈensaɪn/) is a set of .Net libraries for HTTP Message Signatures (RFC 9421).
eXtended signatures
cryptographic signatures directly from your keyboard
Hometree is a library for building homomorphic merkle trees for fast cryptographic signing and integrity checking of components in a finite set.
Alethea Protocol — open standard for digital trust. Binds verified human identity to digital content via a tamper-proof public registry. Specification, JSON-LD examples, SVG schemas, reference POC.
A minimal, portable, and auditable attestation envelope for attaching cryptographic accountability to Impact Score Profiles.
File Fingerprinting
A minimal, portable, and auditable specification for binding signed impact evaluation to issuer existence proof, authority, and revocation-aware validity.
This repository implements the Lamport-Diffie One-Time Signature (OTS) scheme, a cryptographic protocol that enables secure, one-time signing of messages. Using SHA-256 hashing, the system generates a unique signature for each bit of a message, ensuring that each signature can only be used once.
Lightweight PHP library for cryptographically signed tokens with expiration. Stateless authentication without external dependencies
Stage313 introduces cryptographic responsibility: the final verification decision is explicitly approved and signed, enabling verifiable accountability and non-repudiation.
Add a description, image, and links to the cryptographic-signature topic page so that developers can more easily learn about it.
To associate your repository with the cryptographic-signature topic, visit your repo's landing page and select "manage topics."