RanchiMall/FLO-shared-secret
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FLO_secret Source code

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saizsassin 2018-06-25 17:32:17 +05:30 committed by GitHub
parent 3104344157
commit fb652d8160
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1 changed files with 89 additions and 17 deletions
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main.py
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@ -8,9 +8,7 @@ from Crypto.Cipher import AES
import subprocess
from more_itertools import sliced
import json
###Utility function###
from fpdf import FPDF
# This function splits the secret and returns a list of shares
def splitSecret(secret,threshold,splits):
@ -83,17 +81,17 @@ def readUnitFromBlockchain(txid):
return text
def writeDatatoBlockchain(text):
n_splits = len(text)//350 + 1 #number of splits to be created
splits = list(sliced(text, 350)) #create a sliced list of strings
n_splits = len(text)//350 + 1 #number of splits to be created
splits = list(sliced(text, 350)) #create a sliced list of strings
#for split in splits:
# print(split)
#print('no.of splits: '+str(n_splits))
tail = writeUnitToBlockchain(splits[n_splits-1],'oV9ZoREBSV5gFcZTBEJ7hdbCrDLSb4g96i') #create a transaction which will act as a tail for the data
tail = writeUnitToBlockchain(splits[n_splits-1],'oV9ZoREBSV5gFcZTBEJ7hdbCrDLSb4g96i') #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
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 each string in the list create a transaction with txid of previous string
for i in range(n_splits-2,-1,-1):
splits[i] = 'next:'+cursor+" "+splits[i]
#print(splits[i])
@ -113,11 +111,80 @@ def readDatafromBlockchain(cursor):
text=('').join(text)
return text
#This function is for generating the main pdf
def generatePDFmain(splits,threshold,shared_key,txid):
pdf=FPDF()
pdf.add_page()
try:
pdf.image('Flo.png',80,20,33)
pdf.ln(50)
except:
pdf.set_font('Courier', '', 12)
pdf.cell(40,40,'No Image',1,10,'C')
pdf.ln(10)
pdf.set_font('Courier', '', 50)
pdf.multi_cell(0,10,'FLO Secret',0,'C',False)
pdf.set_font('Courier', '', 12)
pdf.multi_cell(0,10,'Powered by the FLO Blockchain',0,'C',False)
pdf.set_font('Times', '', 16)
pdf.ln(20)
pdf.multi_cell(0,10,'A secret has been encrypted and posted on the blockchain of the FLO cryptocurrency in the the following transaction : ',0,'J',False)
pdf.set_font('Courier', '', 12)
pdf.multi_cell(0,10,str(txid),1,'C',False)
pdf.set_font('Times', '', 16)
pdf.ln(10)
pdf.multi_cell(0,10,'The key to decrypt this secret has been split in '+str(splits)+' shares. By design, the secret can be decrypted with any '+str(threshold)+' of these shares.',0,'J',False)
for i in range(splits):
pdf.set_font('Courier', '', 12)
pdf.multi_cell(0,5,str(shared_key[i]),1,'L',False)
pdf.ln(5)
pdf.set_font('Times', '', 16)
pdf.ln(10)
pdf.multi_cell(0,10,'Use the FLO Secret app to decrypt the secret',0,'J',False)
pdf.multi_cell(0,20,'Download FLO Secret from the below link',0,'J',False)
pdf.set_font('Courier', '', 14)
pdf.cell(0,0 ,'https://github.com/akhil2015/FLOShamir/',0,0,'L',False, "https://github.com/akhil2015/FLOShamir/");
filename = 'Flo_Secret_'+txid+'.pdf'
pdf.output(filename,'F')
generatePDFshares(splits,threshold,shared_key,txid)
###START OF GUI###
#This function is for generating the share pdf
def generatePDFshares(splits,threshold,shared_key,txid):
for i in range(splits):
pdf=FPDF()
pdf.add_page()
try:
pdf.image('Flo.png',80,20,33)
pdf.ln(50)
except:
pdf.set_font('Courier', '', 12)
pdf.cell(40,40,'No Image',1,10,'C')
pdf.ln(10)
pdf.set_font('Courier', '', 50)
pdf.multi_cell(0,10,'FLO Secret',0,'C',False)
pdf.set_font('Courier', '', 12)
pdf.multi_cell(0,10,'Powered by the FLO Blockchain',0,'C',False)
pdf.set_font('Times', '', 16)
pdf.ln(20)
pdf.multi_cell(0,10,'A secret has been encrypted and posted on the blockchain of the FLO cryptocurrency in the the following transaction : ',0,'J',False)
pdf.set_font('Courier', '', 12)
pdf.multi_cell(0,10,str(txid),1,'C',False)
pdf.set_font('Times', '', 16)
pdf.ln(10)
pdf.multi_cell(0,10,'The key to decrypt this secret has been split in '+str(splits)+' shares like this one. By design, the secret can be decrypted with any '+str(threshold)+' of these shares.',0,'J',False)
pdf.ln(10)
pdf.multi_cell(0,10,'Below is the part of the key that belongs to this share',0,'J',False)
pdf.set_font('Courier', '', 12)
pdf.multi_cell(0,5,str(shared_key[i]),1,'L',False)
pdf.set_font('Times', '', 16)
pdf.ln(10)
pdf.multi_cell(0,10,'Use the FLO Secret app to decrypt the secret',0,'J',False)
pdf.multi_cell(0,20,'Download FLO Secret from the below link',0,'J',False)
pdf.set_font('Courier', '', 14)
pdf.cell(0,0 ,'https://github.com/akhil2015/FLOShamir/',0,0,'L',False, "https://github.com/akhil2015/FLOShamir/");
filename = 'Flo_Secret_'+txid+'/sharedkey_'+str(i+1)+'.pdf'
os.makedirs(os.path.dirname(filename), exist_ok=True)
pdf.output(filename,'F')
class GUI:
def __init__(self, root):
@ -202,12 +269,17 @@ class GUI:
except:
messagebox.showerror("Connection Failed!", "Please run the node(Flo-Core)!")
return
print("Shared Keys="+str(shared_key))
print('txid: ',txid)
self.PNextButton.destroy()
messagebox.showinfo("Successful!", "Your data is successfully encrypted and stored in the FLO Blockchain!")
messagebox.showinfo("Encryption Successful!", "Your data is successfully encrypted and stored in the FLO Blockchain!\nTx-id : "+txid+"\nPlease wait until the pdfs are generated!")
try:
generatePDFmain(splits,threshold,shared_key,txid)
messagebox.showinfo("PDFs Generated!", "The pdfs containing the details of the transaction hash and shared keys required to retrieve the data are generated!\nTx-id : "+txid)
except:
messagebox.showwarning("PDF Error!", "The pdf generation has failed! \nPlease note the details required to retrive the data manually!")
print('txid : ',txid)
print('The secret can be decrypted using '+str(threshold)+' of the following '+str(splits)+' shares')
for i in range(splits):
print('Shared Key#'+str(i+1)+" : "+shared_key[i])
def Get(self):
self.MainFrame.destroy()