#cryptography

Ed25519 high-performance public-key signature system as a RubyGem (MRI C extension and JRuby Java extension)

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Offline native HD wallet derivation for Swift, JavaScript, Python, Rust, Go, Dart, Kotlin, and the wallethd CLI

A simple SHA-3 / Keccak hash function for JavaScript supports UTF-8 encoding.

⛓️ Crypto functionality for Gleam applications

JSON Object Signing and Encryption (JOSE) for Erlang and Elixir

A dependency-free, no_std Rust crate for secure in-memory secret handling, constant-time checks, and automated clear-on-drop zeroization.

Ruby FFI binding to the Networking and Cryptography (NaCl) library (a.k.a. libsodium)

A Rust library for polynomial commitments

Convert Ed25519 public keys between various encoding formats.

Reviewable AES-256-GCM educational tool with Argon2id, JSON envelopes, and safe-mode streaming.

Majik Key is a next-generation seed phrase account library for creating and managing mnemonic-based identities. It provides a post-quantum ready, high-security bridge between BIP39 mnemonics and the Majikah ecosystem.

Majik Signature is a hybrid post-quantum content signing and verification library for the Majikah ecosystem. Built on top of Majik Key, it provides tamper-proof, forgery-resistant digital signatures for any content format — using a dual-algorithm architecture that combines classical Ed25519 with post-quantum ML-DSA-87 (FIPS-204).

Gleam library for interacting with Automatic Certificate Management Environment (ACME) servers like Let's Encrypt

An implementation of the HPKE hybrid encryption standard (RFC 9180)

Self-contained PGP desktop app: encrypt, sign, verify and decrypt messages

Ecliptic curves cryptography standard DSTU 4145 in JS

Rust encryption library for practical time-lock encryption.