digital-signature

The Open Source DocuSign Alternative.

🔥 The free & Open Source DocuSign alternative

Practical Cryptography for Developers: Hashes, MAC, Key Derivation, DHKE, Symmetric and Asymmetric Ciphers, Public Key Cryptosystems, RSA, Elliptic Curves, ECC, secp256k1, ECDH, ECIES, Digital Signatures, ECDSA, EdDSA

iText for Java represents the next level of SDKs for developers that want to take advantage of the benefits PDF can bring. Equipped with a better document engine, high and low-level programming capabilities and the ability to create, edit and enhance PDF documents, iText can be a boon to nearly every workflow.

iText for .NET is the .NET version of the iText library, formerly known as iTextSharp, which it replaces. iText represents the next level of SDKs for developers that want to take advantage of the benefits PDF can bring. Equipped with a better document engine, high and low-level programming capabilities and the ability to create, edit and enha

High-level cryptography interface powered by libsodium

基于区块链的符合W3C DID和Verifiable Credential规范的分布式身份解决方案

Simple signing of PDFs in node.

Modern cross-platform open-source GUI for OpenPGP encryption, combining beginner-friendly simplicity, expert-level power, and full portability.

pyHanko: sign and stamp PDF files

Constantine: modular, high-performance, zero-dependency cryptography stack for verifiable computation, proof systems and blockchain protocols.

SignServer – Open source, PKI-based signing software to sign code, documents, timestamps and more.

Python library for fast elliptic curve crypto

[サイン] A Compose Multiplatform library for capturing and exporting signatures as ImageBitmap with customizable options. Perfect for electronic signature, legal documents and more.

Sign and request signatures on PDFs, MS Office documents

Repositório que contém os componentes para facilitar a implementação de assinatura digital nos padrões da ICP-BRASIL

Simple and Agnostic PDF Document Parser in PHP - sign PDF docs using PHP

Resources to learn and implement authentication in your application

A WebCrypto Polyfill for Node in TypeScript built on OpenSSL.