PHP Secure Communications Library
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CAUTION: END OF SUPPORT ON 14 AUG 2026. The 'jsrsasign' (RSA-Sign JavaScript Library) is an opensource free cryptography library supporting RSA/RSAPSS/ECDSA/DSA signing/validation, ASN.1, PKCS#1/5/8 private/public key, X.509 certificate, CRL, OCSP, CMS SignedData, TimeStamp, CAdES and JSON Web Signature/Token in pure JavaScript.
pure-python ECDSA signature/verification and ECDH key agreement
Audited & minimal JS implementation of elliptic curve cryptography.
Fastest 5KB JS implementation of secp256k1 signatures and ECDH
Collection of pure Rust elliptic curve implementations: NIST P-224, P-256, P-384, P-521, secp256k1, SM2
Cryptographic signature algorithms: DSA, ECDSA, Ed25519
JSON Web Token library
Crypto for Modern Object Pascal
Sockets with pure VB6 impl of TLS encryption
Swift cryptography library for Bitcoin and Nostr. ECDSA, Schnorr, ECDH, and zero-knowledge proofs on secp256k1. Apple platforms and Linux.
Ultra high-performance secp256k1 ECC engine | Python, Node.js, Rust, Go, C#, Swift, Java bindings | CUDA, Metal, OpenCL GPU | ECDSA, Schnorr, FROST, MuSig2, BIP-352 | 15+ platforms
a native library implementing secp256k1 purely for the crystal language.
MicroPython bindings for some MbedTLS EC and x509 cert/csr functions.