Ecdsa

PHPSecLibPHP

Pure-PHP implementations of SSH-2, SFTP, X.509, and cryptographic algorithms for secure communications.

jsrsasignHTML

A pure JavaScript cryptography library for RSA/ECDSA/DSA signing, PKI operations, and JSON Web Tokens.

PycoinPython

A Python library for Bitcoin and alt-coin utilities including keys, transactions, BIP32, and ECDSA operations.

micro-eccPHP

A small, fast ECDH and ECDSA implementation in C for 8-bit, 32-bit, and 64-bit embedded processors.

ecdsaPython

A pure-Python implementation of ECDSA, EdDSA, and ECDH for elliptic curve cryptography.

noble-curvesTypeScript

Audited, minimal JavaScript implementation of elliptic curve cryptography with support for multiple curves and signature schemes.

noble-secp256k1TypeScript

A 5KB JavaScript library for fast secp256k1 elliptic curve cryptography, including ECDSA, Schnorr signatures, and ECDH.

elliptic-curvesRust

A collection of pure Rust elliptic curve implementations for NIST, secp256k1, SM2, and other standard curves.

signaturesRust

A collection of Rust crates implementing digital signature algorithms like DSA, ECDSA, Ed25519, and post-quantum schemes.

lkGo

A simple Go library for generating and validating signed license keys with arbitrary data.

CryptoLib4PascalPascal

A comprehensive cryptographic library for Object Pascal developers, offering symmetric/asymmetric encryption, hashing, and key derivation.

secp256k1.swiftSwift

A Swift cryptography library providing ECDSA, Schnorr signatures, ECDH, and zero-knowledge proofs on the secp256k1 curve for Bitcoin and Nostr applications.