#cryptography

A constant-time library for big integers modulo a prime, usable for cryptographic applications. Exported from crypto/internal/bigmod, the backend of crypto/rsa and crypto/ecdsa.

A local cryptographic inventory for developers and AI agents that carries verifiable coverage and its own limits inside the CBOM.

Portable SDK and conformance vectors for SESAME, the proposed SCTE 130-9 security layer for the ESAM interface: HMAC auth, channel-scoped authorization, and AES-256-GCM payload encryption over HTTP headers.

Multisig Pool

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

AES Key Wrap construction for Rust.

A Boring(SSL)-compatible API abstraction for Rust cryptographic implementations.

An open format for evidence someone else can check. One signed, chained, anchored file, verified offline by a free Apache-2.0 tool with no account and no server.

Cryptographic attestation infrastructure for high-stakes AI decisions. Every governed execution produces a sealed, independently-verifiable manifest hash. USPTO patent + trademark filed.

Minisign verification library for Golang.

Constant-time hex and base64 codecs from libsodium reimplemented in Rust.

Modular JOSE toolkit for Go, built on go-jose and golang-jwt/jwt for signing, verification, encryption, and public-key distribution.

PAKE library for generating a strong secret between parties over an insecure channel

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Use Common/Structured Reference String (CRS/SRS) from existing ceremonies with ease

Cryptographic utilities in Dart for the Chia blockchain with a functional object model for manipulating Chia primitive types.

A literal string obfuscation library for rust projects

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

An implementation of the Threefish block cipher entirely in go with no external dependencies.

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

Production-grade quantum-resistant steganography toolkit in Go. Implements 7 image/audio/text techniques, Kyber-1024 and Dilithium3, Reed-Solomon error correction, and 4 distribution patterns via a full CLI, following Clean Architecture (DDD + CQRS).

SHA1 and HMAC-SHA1 for Rust.