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区块链钱包的代码涉及到复杂的密码学和网络协
2025-08-30 21:38:57
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![区块链钱包的代码涉及到复杂的密码学和网络协议，开发一个简单的区块链钱包主要可以通过以下几个步骤来实现。作为示例，我将使用Python编写一个基础的区块链钱包代码架构，您可以根据需要进行扩展和修改。
### 示例区块链钱包代码
```python
import hashlib
import json
from time import time
from urllib.parse import urlparse
import requests
import random
importecdsa
class Blockchain:
def __init__(self):
self.chain = []
self.current_transactions = []
self.nodes = set()
self.create_block(proof=100, previous_hash='1')
def create_block(self, proof, previous_hash=None):
block = {
'index': len(self.chain) 1,
'timestamp': time(),
'transactions': self.current_transactions,
'proof': proof,
'previous_hash': previous_hash or self.hash(self.chain[-1]),
}
self.current_transactions = []
self.chain.append(block)
return block
def create_transaction(self, sender, recipient, amount):
self.current_transactions.append({
'sender': sender,
'recipient': recipient,
'amount': amount,
})
return self.last_block['index'] 1
@property
def last_block(self):
return self.chain[-1]
@staticmethod
def hash(block):
block_string = json.dumps(block, sort_keys=True).encode()
return hashlib.sha256(block_string).hexdigest()
def add_node(self, address):
parsed_url = urlparse(address)
self.nodes.add(parsed_url.netloc)
def replace_chain(self):
neighbors = self.nodes
longest_chain = None
max_length = len(self.chain)
for node in neighbors:
response = requests.get(f'http://{node}/chain')
if response.status_code == 200:
length = response.json()['length']
chain = response.json()['chain']
if length max_length and self.valid_chain(chain):
max_length = length
longest_chain = chain
if longest_chain:
self.chain = longest_chain
return True
return False
@staticmethod
def valid_chain(chain):
last_block = chain[0]
current_index = 1
while current_index len(chain):
block = chain[current_index]
if block['previous_hash'] != Blockchain.hash(last_block):
return False
last_block = block
current_index = 1
return True
# 创建钱包类
class Wallet:
def __init__(self):
self.private_key = self.generate_private_key()
self.public_key = self.private_to_public(self.private_key)
@staticmethod
def generate_private_key():
return random.getrandbits(256)
@staticmethod
def private_to_public(private_key):
# 使用ecdsa库生成公钥
signing_key = ecdsa.SigningKey.from_secret_exponent(private_key, curve=ecdsa.SECP256k1)
verifying_key = signing_key.get_verifying_key()
return verifying_key.to_string().hex()
def create_transaction(self, blockchain, recipient, amount):
transaction = {
'sender': self.public_key,
'recipient': recipient,
'amount': amount,
}
blockchain.create_transaction(**transaction)
# 示例用法
if __name__ == '__main__':
blockchain = Blockchain()
wallet = Wallet()
wallet.create_transaction(blockchain,](/uploads/allimg/250830/213UV2Z-0.jpg)
![区块链钱包的代码涉及到复杂的密码学和网络协议，开发一个简单的区块链钱包主要可以通过以下几个步骤来实现。作为示例，我将使用Python编写一个基础的区块链钱包代码架构，您可以根据需要进行扩展和修改。
### 示例区块链钱包代码
```python
import hashlib
import json
from time import time
from urllib.parse import urlparse
import requests
import random
importecdsa
class Blockchain:
def __init__(self):
self.chain = []
self.current_transactions = []
self.nodes = set()
self.create_block(proof=100, previous_hash='1')
def create_block(self, proof, previous_hash=None):
block = {
'index': len(self.chain) 1,
'timestamp': time(),
'transactions': self.current_transactions,
'proof': proof,
'previous_hash': previous_hash or self.hash(self.chain[-1]),
}
self.current_transactions = []
self.chain.append(block)
return block
def create_transaction(self, sender, recipient, amount):
self.current_transactions.append({
'sender': sender,
'recipient': recipient,
'amount': amount,
})
return self.last_block['index'] 1
@property
def last_block(self):
return self.chain[-1]
@staticmethod
def hash(block):
block_string = json.dumps(block, sort_keys=True).encode()
return hashlib.sha256(block_string).hexdigest()
def add_node(self, address):
parsed_url = urlparse(address)
self.nodes.add(parsed_url.netloc)
def replace_chain(self):
neighbors = self.nodes
longest_chain = None
max_length = len(self.chain)
for node in neighbors:
response = requests.get(f'http://{node}/chain')
if response.status_code == 200:
length = response.json()['length']
chain = response.json()['chain']
if length max_length and self.valid_chain(chain):
max_length = length
longest_chain = chain
if longest_chain:
self.chain = longest_chain
return True
return False
@staticmethod
def valid_chain(chain):
last_block = chain[0]
current_index = 1
while current_index len(chain):
block = chain[current_index]
if block['previous_hash'] != Blockchain.hash(last_block):
return False
last_block = block
current_index = 1
return True
# 创建钱包类
class Wallet:
def __init__(self):
self.private_key = self.generate_private_key()
self.public_key = self.private_to_public(self.private_key)
@staticmethod
def generate_private_key():
return random.getrandbits(256)
@staticmethod
def private_to_public(private_key):
# 使用ecdsa库生成公钥
signing_key = ecdsa.SigningKey.from_secret_exponent(private_key, curve=ecdsa.SECP256k1)
verifying_key = signing_key.get_verifying_key()
return verifying_key.to_string().hex()
def create_transaction(self, blockchain, recipient, amount):
transaction = {
'sender': self.public_key,
'recipient': recipient,
'amount': amount,
}
blockchain.create_transaction(**transaction)
# 示例用法
if __name__ == '__main__':
blockchain = Blockchain()
wallet = Wallet()
wallet.create_transaction(blockchain,](/uploads/allimg/250830/213UR934-1.jpg)
