Qubic.Crypto 1.5.2

Qubic.Crypto

Pure C#/.NET implementation of Qubic cryptographic primitives. Zero external dependencies.

Note: This is an early version. APIs may change in future releases.

Features

• K12 (KangarooTwelve) hashing
• FourQ elliptic curve operations
• SchnorrQ digital signatures
• ECDH key exchange
• Identity derivation (seed to public key to 60-character identity)

Install

dotnet add package Qubic.Crypto

Usage

using Qubic.Crypto;

var crypto = new QubicCrypt();

// Derive keys from a 55-character seed
string seed = "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabc";
byte[] privateKey = crypto.GetPrivateKey(seed);
byte[] publicKey = crypto.GetPublicKey(seed);

// Get the 60-character Qubic identity
string identity = crypto.GetIdentityFromPublicKey(publicKey);

// Hash data with KangarooTwelve
byte[] hash = crypto.KangarooTwelve(data);

// Sign and verify
byte[] signed = crypto.Sign(seed, message);
bool valid = crypto.Verify(publicKey, message, signature);

// ECDH shared key
byte[] sharedKey = crypto.GetSharedKey(seed, peerPublicKey);

License

MIT