The Open Source DocuSign Alternative.

letsencrypt/acme client implemented as a shell-script – just add water

Step-by-step guide on how to create a GPG key on keybase.io, adding it to a local GPG setup and using it with Git and GitHub.

Golang PDF library for creating and processing PDF files (pure go)

Ethereum .Net cross platform integration library

A cli tool that helps signing and zip aligning single or multiple Android application packages (APKs) with either debug or provided release certificates. It supports v1, v2 and v3 Android signing scheme has an embedded debug keystore and auto verifies after signing.

An implementation of JOSE standards (JWE, JWS, JWT) in Go

Disable PatchGuard and Driver Signature Enforcement at boot time

✒ A free, self-hosted platform to sideload iOS apps without a computer

Node.js RSA library

Restore/upgrade firmware of iOS devices

PKI.js is a pure JavaScript library implementing the formats that are used in PKI applications (signing, encryption, certificate requests, OCSP and TSP requests/responses). It is built on WebCrypto (Web Cryptography API) and requires no plug-ins.

Feather is a free on-device iOS application manager/installer, using certificates part of the Apple Developer Program.

Keyless Git signing using Sigstore

Apkmod can decompile, recompile, sign APK, and bind the payload with any legit APP

The source repository for the Trusted Platform Module (TPM2.0) tools

Fast and efficient ed25519 signing and verification in Rust.

An S/MIME signing utility for use with Git

Create private keys and certificates with node.js

Go JWT signing, verifying and validating