File size: 1,607 Bytes
2f3c093 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | import hashlib
import json
import time
class BlockchainLogger:
def __init__(self):
self.chain = []
self.create_block(previous_hash='0')
def create_block(self, previous_hash):
block = {
'index': len(self.chain) + 1,
'timestamp': time.time(),
'data': [],
'previous_hash': previous_hash,
'hash': ''
}
block['hash'] = self.hash_block(block)
self.chain.append(block)
return block
def hash_block(self, block):
block_string = json.dumps(block, sort_keys=True).encode()
return hashlib.sha256(block_string).hexdigest()
def add_data(self, data):
self.chain[-1]['data'].append(data)
self.chain[-1]['hash'] = self.hash_block(self.chain[-1])
def log_event(self, event):
self.add_data(event)
def verify_chain(self):
for i in range(1, len(self.chain)):
current_block = self.chain[i]
previous_block = self.chain[i - 1]
if current_block['previous_hash'] != previous_block['hash']:
return False
if current_block['hash'] != self.hash_block(current_block):
return False
return True
def get_chain(self):
return self.chain
def integrate_with_new_components(self, new_component_data):
self.add_data(new_component_data)
return self.chain
def ensure_compatibility(self, existing_data, new_component_data):
self.add_data(existing_data)
self.add_data(new_component_data)
return self.chain
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