区块链技术的未来发展趋势

    package main
    
    import (
    "github.com/cosmos/cosmos-sdk/types"
    "github.com/cosmos/cosmos-sdk/x/ibc" // 假设 IBC 模块已集成
    )
    
    func main() {
    // 初始化区块链应用（省略具体初始化代码）
    
    // 创建跨链通道
    channelID := "channel-1"
    portID := "transfer"
    // 假设已经建立了连接和通道
    
    // 发送跨链消息
    msg := ibc.NewMsgTransfer(
        portID,
        channelID,
        types.NewCoin("uatom", types.NewInt(1000000)), // 发送 1 uatom
        "receiver_address", // 接收方地址
        "sender_address",   // 发送方地址
        "memo",             // 备注信息
        0,                  // 超时时间戳（0 表示无超时）
    )
    
    // 签名并广播消息（省略具体签名和广播代码）
    }

    # 伪代码示例：zk-SNARKs 零知识证明
    
    def prove_statement(statement, private_input):
    # 生成证明密钥和验证密钥（省略具体生成过程）
    proof_key, verification_key = generate_keys()
    
    # 生成证明
    proof = generate_proof(proof_key, statement, private_input)
    
    return proof
    
    def verify_statement(verification_key, statement, proof):
    # 验证证明
    is_valid = verify_proof(verification_key, statement, proof)
    
    return is_valid
    
    # 示例使用
    statement = "I know a secret number that satisfies a certain condition"
    private_input = "secret_number"
    proof = prove_statement(statement, private_input)
    is_valid = verify_statement(verification_key, statement, proof)
    
    print(f"Proof is valid: {is_valid}")

    # 伪代码示例：区块链记录物联网设备数据
    
    class Block:
    def __init__(self, index, timestamp, data, previous_hash):
        self.index = index
        self.timestamp = timestamp
        self.data = data  # 物联网设备数据
        self.previous_hash = previous_hash
        self.hash = self.calculate_hash()
    
    def calculate_hash(self):
        # 计算区块的哈希值（省略具体哈希算法）
        pass
    
    class Blockchain:
    def __init__(self):
        self.chain = [self.create_genesis_block()]
    
    def create_genesis_block(self):
        # 创建创世区块
        return Block(0, "2023-01-01T00:00:00", "Genesis Block", "0")
    
    def add_block(self, data):
        # 添加新区块到区块链
        previous_block = self.chain[-1]
        new_block = Block(len(self.chain), datetime.now().isoformat(), data, previous_block.hash)
        self.chain.append(new_block)
    
    # 示例使用
    blockchain = Blockchain()
    iot_data = {"device_id": "device1", "temperature": 25.5, "humidity": 60}
    blockchain.add_block(iot_data)
    
    # 打印区块链
    for block in blockchain.chain:
    print(f"Block {block.index}: {block.data}")