hashsigs-solidity is a cryptographic signature library and security utility for Ethereum smart contracts. It functions as a hash-based signature verifier designed to confirm data origin and integrity within a virtual machine environment. The project focuses on on-chain cryptographic authentication, specifically the verification of one-time signatures to prevent replay attacks. It implements signature validation for Winternitz One-Time Signatures Plus to ensure that data has not been tampered with before it is processed by a contract. The library covers a broad range of cryptographic capabili
hashsigs-ts is a TypeScript cryptography library used to generate and verify digital signatures through one-time cryptographic schemes. It functions as a hash-based signature tool that creates secure signatures without relying on asymmetric encryption. The library provides tools for cryptographic identity verification and data integrity validation. It utilizes a one-time signature generation process to ensure that data remains unaltered and that the origin of a message can be proven. The implementation manages raw cryptographic data using typed arrays and employs pure functions to ensure con
hashsigs-py is a hash-based signature library for Python used to generate and verify one-time digital signatures. It employs hash chains and seed-based key derivation to authenticate data and ensure message integrity. The library includes a high-performance compiled cryptography backend to accelerate signature computation and processing. For compatibility, it maintains a pure Python fallback implementation to ensure functionality when the compiled backend is unavailable. The project provides tools for digital key pair management, allowing for the deterministic generation of public and privat
jsencrypt is a JavaScript library for performing RSA encryption, decryption, and key generation. It functions as an asymmetric key generator and digital signature provider that executes all cryptographic processing directly in the browser. The library focuses on the use of the PEM standard for importing, exporting, and managing cryptographic keys. It provides the ability to create public and private RSA key pairs of various bit sizes and supports OpenSSL compatible formats. Its capabilities cover the transformation of plaintext into ciphertext and the recovery of original messages using corr