A pure TypeScript implementation of Shamir's Secret Sharing (SSS), a cryptographic technique in which a secret is divided into parts, called shares, in such a way that a threshold of several shares are needed to reconstruct the secret.

XIDs are unique 32-byte identifiers that represent any entities - real or abstract - such as a person, organization, or device. Generated from the SHA-256 hash of a specific public signing key known as the inception key, a XID provides a stable identity throughout its lifecycle, even as associated keys and permissions evolve.

The registry of CBOR tags used across Blockchain Commons specifications, with their names and assigned values.

Cryptographically secure random number generation and deterministic, seeded random sequences for Blockchain Commons' TypeScript libraries.

Gordian Envelope is a structured format for hierarchical binary data focused on privacy. They are designed to facilitate "smart documents" with a number of unique features: Hierarchical structure, Merkle-like digest tree, Deterministic representation, Privacy-focused, Progressive trust

Uniform Resources (URs) are URI-encoded CBOR structures developed by Blockchain Commons. This package is intended primarily for use in higher-level Blockchain Commons projects like Gordian Envelopes.

Gordian Sealed Transaction Protocol (GSTP) is a secure, transport-agnostic communication method enabling encrypted and signed data exchange between multiple parties. Built upon the Gordian Envelope specification, GSTP supports various transport mediums - including HTTP, raw TCP/IP, air-gapped protocols using QR codes, and NFC cards

A multipart Uniform Resource (UR) QR code generator. It produces single-frame and animated fountain-coded QR sequences - suitable for transmitting arbitrarily large UR-encoded payloads through an airgap - with an optional logo overlay.

Provides a powerful pattern matching language for querying and extracting data from dCBOR (Deterministic CBOR) structures. It supports value matching, structural patterns, and meta-patterns with named captures.

The registry of ontological predicates used in Gordian Envelope, encoded as compact integers instead of strings.