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Tags: Cryptography library
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A tiny (18.5 kB gzip), zero-dependency, Javascript library to perform OpenSSL RSA Encryption, Decryption, and Key Generation.

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.

  • asn1
  • x509
  • certificate
  • crl

The wolfSSL library is a small, fast, portable implementation of TLS/SSL for embedded devices to the cloud. wolfSSL supports up to TLS 1.3 and DTLS 1.3! Update to wolfSSL 5.9.1 for the latest CVE fixes.

LibTomCrypt is a fairly comprehensive, modular and portable cryptographic toolkit that provides developers with a vast array of well known published block ciphers, one-way hash functions, chaining modes, pseudo-random number generators, public key cryptography and a plethora of other routines.

Modern(-ish) password hashing for your software and your servers

  • python

An ActionScript 3 Library that contains a number of classes and utilities for working with ActionScript? 3. These include classes for MD5 and SHA 1 hashing, Image encoders, and JSON serialization as well as general String, Number and Date APIs.

Mundane is a Rust cryptography library backed by BoringSSL that is difficult to misuse, ergonomic, and performant (in that order).

Collection of pure Rust elliptic curve implementations: NIST P-224, P-256, P-384, P-521, secp256k1, SM2

  • ecdsa
  • nist
  • rust
  • schnorr

ObjectivePGP is an open-source library for iOS and macOS that provides developers with tools for implementing OpenPGP encryption and decryption, digital signing, and signature verification in their applications, thereby enhancing security and data integrity.

Advanced crypto library for the Go language

  • crypto-library
  • elliptic-curves
  • go

MIRACL Cryptographic SDK: Multiprecision Integer and Rational Arithmetic Cryptographic Library is a C software library that is widely regarded by developers as the gold standard open source SDK for elliptic curve cryptography (ECC).

Java cryptographic library that supports Argon2, bcrypt, scrypt and PBKDF2 aimed to protect passwords in databases. Easy to use by design, highly customizable, secure and portable. All the implementations follow the standards and have been reviewed to perform better in the JVM.

  • pbkdf2
  • bcrypt
  • scrypt
  • argon2