#cryptography

Securely connect apps, services, and devices with end-to-end encrypted sessions, RPC, and streams across Go, TypeScript, Swift, and Rust.

A signed release manifest for vendor binaries

libsodium compiled to Webassembly and pure JavaScript, with convenient wrappers.

JRuby's OpenSSL gem

A sponge-based secure hash function that uses AES-256 as its internal PRF.

Utility class to encrypt/decrypt files or directory trees using rsa keys and a pass phrase protected private key.

Rust wrapper for the PKCS #11 API, Cryptoki

Audited & minimal JS implementation of hash functions, MACs and KDFs.

No repository description published.

A Rust library for working with JSON Web Keys (JWK) and JWK Sets (JWKS) as defined in RFC 7517, with WASM compatibility and optional jwt-simple integration.

A utility library for SHA-256 hashing and verification.

Rust SDK for Poseidon/Poseidon2 in Soroban contracts.

51Degrees Rust SDK. Device detection and IP intelligence over the 51Degrees pipeline, on-premise and cloud, with web integration and examples.

ML-DSA-65 signed deploy attestations for the KXCO stack (NIST FIPS 204).

🔐 A high-performance E2EE library for .NET with Signal Protocol support. Features X3DH, Double Ratchet, Sender Keys, AES-GCM, RSA, ECDH, ECDSA, and secure key management. Supports .NET 6-10, .NET Standard 2.0/2.1, and .NET Framework 4.8+.

Triton is a virtual machine that comes with Algebraic Execution Tables (AET) and Arithmetic Intermediate Representations (AIR) for use in combination with a STARK proof system.

Kotlin Multiplatform Crypto/PKI/ASN.1 Library with Attestation and Hardware-Backed Crypto Support on Mobile

Envelope encryption for Rust with GCP, AWS, Azure and Vault KMS: Tink-compatible values, typed fields, deterministic encryption, beacons and keyrings with rotation

Pure-Go off-heap secret memory: mmap/mlock, memfd_secret L4 isolation, guard pages, fail-closed by default

Web4: an open standard for verifiable AI presence — LCT identity, T3/V3 trust tensors, MRH context, ATP/ADP. Rust + Python SDKs on crates.io/PyPI. AGPL-3.0-or-later.

No repository description published.

🛜 TCP Library for Cloudflare Workers

Content Addressable Data Structures

Cryptography library for Gleam targeting Erlang and JavaScript

better-sqlite3 with multiple-cipher encryption support 🔒

Fastest 5KB JS implementation of ed25519 signatures

Fastest 5KB JS implementation of secp256k1 signatures and ECDH

No repository description published.

Hardened pure Rust RSA implementation with Marvin attack mitigation

Make GPUs do branchy stuff fast.