57 lines
2.0 KiB
Python
57 lines
2.0 KiB
Python
from secretsharing import PlaintextToHexSecretSharer
|
|
import subprocess
|
|
import json
|
|
from Crypto.Cipher import AES
|
|
from more_itertools import sliced
|
|
|
|
# This function splits the secret and returns a list of shares
|
|
def splitSecret(secret,threshold,splits):
|
|
shares = PlaintextToHexSecretSharer.split_secret(secret, threshold, splits)
|
|
return shares
|
|
|
|
# This function recovers the secret using the list of shares and returns the reconstructed secret
|
|
def recoverSecret(shares):
|
|
secret = PlaintextToHexSecretSharer.recover_secret(shares)
|
|
return secret
|
|
|
|
def writeUnitToBlockchain(text,receiver):
|
|
txid = subprocess.check_output(["flo-cli", "sendtoaddress",receiver,"0.01",'""','""',"true","false","10",'UNSET',str(page_html)])
|
|
txid = str(txid)
|
|
txid = txid[2:-3]
|
|
return txid
|
|
|
|
def readUnitFromBlockchain(txid):
|
|
rawtx = subprocess.check_output(["flo-cli", "getrawtransaction", str(txid)])
|
|
rawtx = str(rawtx)
|
|
rawtx = rawtx[2:-3]
|
|
tx = subprocess.check_output(["flo-cli",, "decoderawtransaction", str(rawtx)])
|
|
content = json.loads(tx)
|
|
text = content['floData']
|
|
return text
|
|
|
|
#write data chunk to blockchain
|
|
def writeDatatoBlockchain(text):
|
|
n_splits = len(text)//350 + 1 #number of splits to be created
|
|
splits = list(sliced(text, n_splits)) #create a sliced list of strings
|
|
tail = writeUnitToBlockchain(splits[n_splits]) #create a transaction which will act as a tail for the data
|
|
cursor = tail
|
|
if n_splits == 1:
|
|
return cursor #if only single transaction was created then tail is the cursor
|
|
|
|
#for each string in the list create a transaction with txid of previous string
|
|
for i in range(n_splits-1,0):
|
|
splits[i] = 'next:'+cursor+splits[i]
|
|
cursor = writeUnitToBlockchain(splits[i])
|
|
return cursor
|
|
|
|
#TODO read data chunk from blockchain
|
|
def readDatafromBlockchain(cursor):
|
|
text = []
|
|
cursor_data = readUnitFromBlockchain(cursor)
|
|
text.append(cursor_data[69:]) #TODO enter cursor values
|
|
while(cursor_data[:5]=='next:'):
|
|
cursor = cursor_data[5:69]
|
|
cursor_data = readUnitFromBlockchain(cursor)
|
|
text.append(cursor_data[69:])
|
|
text.join('')
|
|
return text |