🌟 Executive Summary
BeQuantum AI Blockchain represents a revolutionary blockchain platform built on the principles of post-quantum cryptography. In an era where quantum computers threaten to break traditional cryptographic algorithms (RSA, ECDSA), BeQuantum offers a robust solution resistant to quantum computing attacks.
🔐
CRYSTALS-Dilithium3
NIST-standardized post-quantum signatures from the CRYSTALS suite
🔑
CRYSTALS-KYBER
NIST-standardized post-quantum key encapsulation mechanism
📜
Digital Notary
Immutable registration of digital assets
🌐
Decentralization
P2P network with no single point of failure
🚀 Introduction
The Problem
Traditional blockchains (Bitcoin, Ethereum) use cryptography based on the difficulty of factoring large numbers or discrete logarithms. Shor's algorithm on a quantum computer can break these algorithms in minutes.
The BeQuantum Solution
We have implemented the CRYSTALS (Cryptographic Suite for Algebraic Lattices) family of algorithms:
- CRYSTALS-Dilithium - Digital signatures (NIST Selected)
- CRYSTALS-KYBER - Key encapsulation mechanism (NIST Selected)
Both algorithms are lattice-based and have passed NIST's rigorous 5-year standardization process.
from dilithium_python import Dilithium3
from kyber_py import Kyber512
public_key, private_key = Dilithium3.generate_keypair()
address = '0x' + hashlib.sha256(str(public_key).encode()).hexdigest()[:40]
kyber_public, kyber_secret = Kyber512.keygen()
print(f"🔐 CRYSTALS-Dilithium Address: {address}")
print(f"🔐 CRYSTALS-KYBER Public Key: {kyber_public[:50]}...")
🔐 Post-Quantum Cryptography
Why CRYSTALS Suite?
| Algorithm | Type | Key Size | Signature Size | Quantum Resistant | NIST Status |
| RSA-2048 | Factoring | 256 B | 256 B | ❌ | Legacy |
| ECDSA | Elliptic Curves | 32 B | 64 B | ❌ | Legacy |
| Dilithium3 | Lattices | 1.2 KB | 2.7 KB | ✅ | Selected |
| KYBER-512 | Lattices | 800 B | N/A | ✅ | Selected |
How It Works
CRYSTALS-Dilithium is based on the hardness of the Module Learning With Errors (MLWE) problem:
public_key = (A, t = As₁ + s₂)
signature = (z, h) where z = y + cs₁
CRYSTALS-KYBER is based on the Module LWE problem for key exchange:
Alice: (pk, sk) = KYBER.keygen()
Bob: (c, ss_bob) = KYBER.encaps(pk)
Alice: ss_alice = KYBER.decaps(c, sk)
💡 Quantum Resistance: Even quantum computers cannot efficiently solve these lattice problems!
from kyber_py import Kyber512
pk, sk = Kyber512.keygen()
c, ss_bob = Kyber512.encap(pk)
ss_alice = Kyber512.decap(c, sk)
assert ss_alice == ss_bob
🏗 Blockchain Architecture
Block Structure
{
"index": 42,
"timestamp": 1709123456.789,
"transactions": [...],
"previous_hash": "0000...a1b2c3",
"nonce": 123456,
"hash": "0000...d4e5f6"
}
Proof of Work
Mining difficulty: 3 leading zeros
def proof_of_work(block):
block.nonce = 0
while not block.compute_hash().startswith('0' * difficulty):
block.nonce += 1
return block.hash
📜 Digital Notary
Registering Digital Assets
- 📄 Documents
- 🎨 Images
- 💻 Source Code
- 🎵 Music Files
- 📹 Video Content
asset_tx = AssetTransaction.create_asset(
file_hash="e3b0c442...",
metadata={"name": "doc.pdf"},
owner_address="0x742d...",
public_key=pub_key,
private_key=priv_key
)
Ownership Verification
curl -X POST <api_host>/asset/verify \
-H "Content-Type: application/json" \
-d '{"file_hash": "e3b0c442...", "owner_address": "0x742d..."}'
💼 Wallets and Transactions
Creating a Wallet
curl -X POST <api_host>/wallets/create \
-H "Content-Type: application/json" \
-d '{"name": "my_wallet"}'
⚠️ IMPORTANT: Save your private key securely! It will not be shown again.
⛏ Consensus and Mining
Block reward: 1.0 coin
Transaction fees: all fees from transactions
curl -X POST <api_host>/mine \
-H "Content-Type: application/json" \
-d '{"miner": "miner_address"}'
📡 API Reference
| Method | Endpoint | Description |
|---|
| GET | / | Web interface |
| GET | /health | Health check |
| POST | /wallets/create | Create wallet |
| GET | /balance/<addr> | Get balance |
| POST | /new_transaction | Send coins |
| GET | /chain | View blockchain |
| POST | /mine | Mine block |
🛡 Security
💡 Use Cases
Secure Document Management
contract_hash = hashlib.sha256(contract.encode()).hexdigest()
asset_tx = AssetTransaction.create_asset(
file_hash=contract_hash,
metadata={"type": "legal_contract"},
owner_address=addr,
public_key=pub,
private_key=priv
)
🗺 Roadmap
- ✅ Version 1.0: Dilithium3, PoW, Digital Notary
- 🔄 Version 1.5: KYBER integration, Smart Contracts
- 🚀 Version 2.0: Ethereum Bridge, DeFi, DAO
- 🌟 Version 3.0: Sharding, ZK-proofs, AI Integration
📊 Technical Specs
| Block size | 1 MB |
| Block time | ~5 min |
| Block reward | 1.0 coin |
| TX/second | ~10-15 |
📄 License
MIT License - complete freedom to use, modify, and distribute.