add JCEd25519 project

JCEd25519 is a JavaCard implementation of Ed25519 signing using public JavaCard API. The implementation uses (modified) JCMathLib library to perform necessary operations like EC and BigInt arithmetic. And in case SHA512 is not supported by given JavaCard, its software re-implementation is used.

README.md

@@ -512,6 +512,10 @@ The main goal of this framework is to synchronize Java Card 2 applets through th
 - [JavaCard ChaCha20 implementation](https://github.com/thotheolh/jcChaCha2032) ![stars](https://img.shields.io/github/stars/thotheolh/jcChaCha2032.svg?style=social) ![lastcommit](https://img.shields.io/github/last-commit/thotheolh/jcChaCha2032.svg) ![numcontributors](https://img.shields.io/github/contributors-anon/thotheolh/jcChaCha2032.svg) <br>
 32-bit JavaCard based ChaCha20 stream cipher optimized for JavaCard environment with 32-bit Integer support
 
+- [JCEd25519](https://github.com/dufkan/JCEd25519) ![stars](https://img.shields.io/github/stars/dufkan/JCEd25519.svg?style=social) ![lastcommit](https://img.shields.io/github/last-commit/dufkan/JCEd25519.svg) ![numcontributors](https://img.shields.io/github/contributors-anon/dufkan/JCEd25519.svg) 
+ <br>
+JCEd25519 is a JavaCard implementation of Ed25519 signing using public JavaCard API. The implementation uses (modified) JCMathLib library to perform necessary operations like EC and BigInt arithmetic. And in case SHA512 is not supported by given JavaCard, its software re-implementation is used.
+
 - [JCMathLib - ECPoint library](https://github.com/OpenCryptoProject/JCMathLib) ![stars](https://img.shields.io/github/stars/OpenCryptoProject/JCMathLib.svg?style=social) ![lastcommit](https://img.shields.io/github/last-commit/OpenCryptoProject/JCMathLib.svg) ![numcontributors](https://img.shields.io/github/contributors-anon/OpenCryptoProject/JCMathLib.svg) <br>
 Provides software re-implementation of low-level operations like ECPoint or BigInteger without any use of proprietary API.