def filetotrans(filename): # Verified working
f = open(filename, "r")
incount = int(block.readword(f.readline())) # reading incount from the file
outcount = int(block.readword(f.readline())) # reading outcount from the file
T = transaction(incount, outcount) # create a new transaction object
T.inlist = [inputtrans() for i in range(T.incount)] # creating array inlist[]
T.sign = block.readword(f.readline())
T.hash = block.readword(f.readline())
for i in range(T.incount):
T.inlist[i].hash = block.readword(
f.readline()
) # reading hash, n, sign and pub values from file ans storing it in inlist[i]
T.inlist[i].n = int(block.readword(f.readline()))
T.inlist[i].sign = block.readword(f.readline())
T.inlist[i].pub = block.readword(f.readline())
T.outlist = [outputtrans() for i in range(T.outcount)] # creating array outlist[]
for i in range(T.outcount):
T.outlist[i].value = int(
block.readword(f.readline())
) # reading value and addr values from file ans storing it in outlist[i]
T.outlist[i].addr = block.readword(f.readline())
f.close()
return T
def signtrans(node, filename): # Verified working
f = open(filename, "r")
incount = int(block.readword(f.readline())) # reading incount from the file
outcount = int(block.readword(f.readline())) # reading outcount from the file
sign = block.readword(f.readline())
T = transaction(incount, outcount) # create a new transaction object
T.hash = block.readword(f.readline())
hashstr = str(T.incount) + str(T.outcount)
transstr = str(T.incount) + str(T.outcount)
T.inlist = [inputtrans() for i in range(T.incount)] # creating array inlist[]
for i in range(T.incount):
T.inlist[i].hash = block.readword(
f.readline()
) # reading hash, n, sign and pub values from file ans storing it in inlist[i]
T.inlist[i].n = int(block.readword(f.readline()))
T.inlist[i].sign = block.readword(f.readline())
T.inlist[i].pub = block.readword(f.readline())
# append each attribute of inlist[i] and sign it
hashinstr = str(T.inlist[i].n) + str(T.inlist[i].pub)
hashstr = hashstr + hashinstr
# T.inlist[i].hash = gethash(hashinstr) #Commented out bcos validation was failing
inliststr = str(T.inlist[i].hash) + str(T.inlist[i].n) + str(T.inlist[i].pub)
T.inlist[i].sign = node.privatekey.sign(inliststr)
# print T.inlist[i].sign
transstr = transstr + str(T.inlist[i].hash) + str(T.inlist[i].n) + str(T.inlist[i].pub) + str(T.inlist[i].sign)
T.outlist = [outputtrans() for i in range(T.outcount)] # creating array outlist[]
for i in range(T.outcount):
T.outlist[i].value = int(
block.readword(f.readline())
) # reading value and addr values from file ans storing it in outlist[i]
T.outlist[i].addr = block.readword(f.readline())
transstr = transstr + str(T.outlist[i].value) + str(T.outlist[i].addr)
hashstr = hashstr + str(T.outlist[i].value) + str(T.outlist[i].addr)
# T.hash = gethash(hashstr) commented because of the difficulty in finding hash of the input transaction
transstr = transstr + str(T.hash)
T.sign = node.privatekey.sign(transstr)
# print T.sign
f.close
transtofile(T, "signedtrans5.txt")
