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bb.py
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# ByteBuilder/SeedSprout: reconstructing files from a cryptographic hash or seed
# Author: davFaithid
# Version 3
from io import BytesIO
import os, sys
import traceback
from random import randbytes
xrange = range
import argparse
parser = argparse.ArgumentParser()
#-bb ByteBuilder -ss SeedSprout -f File
parser.add_argument("-bb", "--bytebuilder", dest = "bb", help="Build file from hash using ByteBuilder: -bb sha256 -fs filesize -o filename")
parser.add_argument("-ss", "--seedsprout", dest = "ss", help="Build file from seed using SeedSprout: -ss seed -fs filesize -o filename")
parser.add_argument("-i", "--infile", dest = "i", help="Build file from SeedSprout container file: -i filename")
parser.add_argument("-a", dest = "a", help="Prints hash and file size, perfect for batch commands for folders")
parser.add_argument("-ht", dest = "ht", help="Selects hash to be inputted, defaults sha256")
parser.add_argument("-fs", "--size", dest = "fs")
parser.add_argument("-o", "--outfile", dest = "o")
parser.add_argument("-bh", dest = "bh")
parser.add_argument("-st", dest = "st")
parser.add_argument("-ns", dest = "ns")
args = parser.parse_args()
felon = "sha256"
def murder():
global felon
if (args.ht):
felon = str(args.ht)
else:
felon = "sha256"
if felon == "sha256":
print("\nSHA256 Hash Selected")
if felon == "sha1":
print("\nSHA1 Hash Selected")
if felon == "md5":
print("\nMD5 Hash Selected")
return felon
import hashlib
import random
gl = 0
def randBytes(size, seed):
random.seed(seed)
global gl
nr = bytearray(random.getrandbits(8) for _ in xrange(size))
gl = nr
return nr
def sha256sum(filename):
#print("\nSHA256 Hash Selected\n")
h = hashlib.sha256()
b = bytearray(128*1024)
mv = memoryview(b)
with open(filename, 'rb', buffering=0) as f:
for n in iter(lambda : f.readinto(mv), 0):
h.update(mv[:n])
return h.hexdigest()
def sha1sum(filename):
#print("\nSHA1 Hash Selected\n")
h = hashlib.sha1()
b = bytearray(128*1024)
mv = memoryview(b)
with open(filename, 'rb', buffering=0) as f:
for n in iter(lambda : f.readinto(mv), 0):
h.update(mv[:n])
return h.hexdigest()
def md5sum(filename):
#print("\nMD5 Hash Selected\n")
h = hashlib.md5()
b = bytearray(128*1024)
mv = memoryview(b)
with open(filename, 'rb', buffering=0) as f:
for n in iter(lambda : f.readinto(mv), 0):
h.update(mv[:n])
return h.hexdigest()
def hashsum(filename):
global felon
#print(felon)
if felon == "sha256":
return sha256sum(filename)
if felon == "sha1":
return sha1sum(filename)
if felon == "md5":
return md5sum(filename)
else:
print("\nInvalid Hash Selected")
sys.exit(0)
def writeout(seed,maxsize,filename,startbyte=0):
try:
if (startbyte==0):
write_byte = randBytes(int(maxsize),seed)
with open(filename, "wb") as f:
# max file size in bytes
while (os.stat(filename).st_size < int(maxsize)):
f.write(write_byte)
if f.tell() == int(maxsize): # f.tell() gives byte offset, no need to worry about multiwide chars
break
# sys.exit()
f.close()
else:
with open(filename, "wb") as f:
write_byte = bytes.fromhex(startbyte)
while (os.stat(filename).st_size < int(len(startbyte)/2)):
f.write(write_byte)
if f.tell() == int(len(startbyte)/2): # f.tell() gives byte offset, no need to worry about multiwide chars
break
# sys.exit()
f.close()
write_byte = randBytes(int(maxsize),seed)
with open(filename, "ab") as f:
# max file size in bytes
while (os.stat(filename).st_size < int(maxsize)):
f.write(write_byte)
if f.tell() == int(maxsize): # f.tell() gives byte offset, no need to worry about multiwide chars
break
# sys.exit()
f.close()
return hashsum(filename)
except:
traceback.print_exc()
import subprocess, time
subprocess.check_call(["attrib", "-H", filename])
print("pausing for cooldown")
time.sleep(5)
def ByteBuilder(target,maxsize,filename,start=0):
print("""
***************************
# ByteBuilder: reconstructing files from a cryptographic hash
# Author: davFaithid
# Version 3
***************************
""",'\n')
seed = 0 + int(start)
while (str(writeout(seed,maxsize,filename)) != str(target)):
print("failure", hashsum(filename), os.stat(filename).st_size,seed)
seed += 1
writeout(seed,maxsize,filename)
if (hashsum(filename) == target):
print("success", hashsum(filename), os.stat(filename).st_size,seed,'\n')
break
sys.exit()
def Header(target,seed,header):
run = True
while (run == True):
#while (str(hashsum("header")) != str(hashsum("header2"))):
writeout(seed,int(len(header)/2),"header")
print("failure",seed,end='\r')
seed += 1
if (str(hashsum("header")) == str(hashsum("header2"))):
print("header found at seed", seed,'\n')
#print(type(seed))
run = False
return seed
def ByteBuilderh(target,maxsize,filename,header,start=0,noseed=False):
print("""
***************************
# ByteBuilder: reconstructing files from a cryptographic hash
# Author: davFaithid
# Version 3
***************************
""",'\n')
seed = 0 + int(start)
#try:
print("noseed:",bool(noseed))
if (bool(noseed)==False):
write_byte = bytes.fromhex(header)
with open("header2", "wb") as f:
# max file size in bytes
while (os.stat("header2").st_size < int(len(header))):
f.write(write_byte)
if f.tell() == int(len(header)/2): # f.tell() gives byte offset, no need to worry about multiwide chars
break
# sys.exit()
f.close()
print(str(hashsum("header2")))
print(int(len(header)/2))
writeout(seed,int(len(header)/2),"header")
while (str(writeout(seed,maxsize,filename)) != str(target)):
y=Header(target,seed,header)
#print(type(y))
try:
seed = int(y)
#print(seed)
#print(writeout(seed,maxsize,filename),seed)
except TypeError:
y=Header(target,seed,header)
#print(y)
print("testing",writeout(seed,maxsize,filename), os.stat(filename).st_size,seed)
if (hashsum(filename) == target):
print("success", hashsum(filename), os.stat(filename).st_size,seed,'\n')
break
sys.exit()
else:
#print("failure", hashsum(filename), os.stat(filename).st_size,seed,'\n')
print("failure",seed)
seed += 1
#seed=Header(target,seed,header)
pass
else:
while (str(writeout(seed,maxsize,filename)) != str(target)):
print("testing",writeout(seed,(int(maxsize)-int(len(header)/2)),filename,header), os.stat(filename).st_size,seed)
if (hashsum(filename) == target):
print("success", hashsum(filename), os.stat(filename).st_size,seed,'\n')
break
sys.exit()
else:
#print("failure", hashsum(filename), os.stat(filename).st_size,seed,'\n')
print("failure",seed)
seed += 1
#seed=Header(target,seed,header)
pass
def Analyze(filename):
print(hashsum(filename), os.stat(filename).st_size,'\n')
def SeedSprout(seed,maxsize,filename):
print("""
***************************
# SeedSprout: reconstructing files from a ByteBuilder seed
# Author: davFaithid
# Version 3
***************************
""",'\n')
print(felon.upper()+": ",writeout(seed,maxsize,filename),'\n')
sys.exit()
def SeedSprouti(infile):
print("""
***************************
# SeedSprouti: reconstructing files from a SeedSprout container file
# Author: davFaithid
# Version 3
***************************
""",'\n')
fileopen = open(infile, "r")
fileread = fileopen.read()
fileread = fileread.split("/")
#print(fileread)
fileopen.close()
target = fileread[1]
maxsize = int(fileread[2])
seed = int(fileread[3])
filename = str(fileread[4])
#print(target,maxsize,seed)
if hashsum(filename) == target:
print("success", hashsum(filename),'\n')
else:
print("failure", hashsum(filename),'\n')
def main():
murder()
if sys.argv[1] == '-bb':
#print("bb",args.bb,args.fs,args.o)
if (args.st):
ByteBuilder(args.bb,args.fs,args.o,args.st)
else:
ByteBuilder(args.bb,args.fs,args.o)
if sys.argv[1] == '-ss':
#print("ss",int(args.ss),args.fs,args.o)
SeedSprout(int(args.ss),args.fs,args.o)
if sys.argv[1] == '-i':
#print("i",args.i)
SeedSprouti(args.i)
if sys.argv[1] == '-a':
Analyze(args.a)
if sys.argv[1] == '-bh':
#print("bb",args.bb,args.fs,args.o)
if (args.st):
if (args.ns):
#print(args.ns,bool(args.ns))
ByteBuilderh(args.bb,args.fs,args.o,args.bh,start=int(args.st),noseed=bool(args.ns))
else:
ByteBuilderh(args.bb,args.fs,args.o,args.bh,args.st)
elif (args.ns):
#print(args.ns,bool(args.ns))
if (args.st):
#print(args.ns,bool(args.ns))
ByteBuilderh(args.bb,args.fs,args.o,args.bh,start=int(args.st),noseed=bool(args.ns))
else:
ByteBuilderh(args.bb,args.fs,args.o,args.bh,noseed=bool(args.ns))
else:
ByteBuilderh(args.bb,args.fs,args.o,args.bh)
if sys.argv[1] == '--bytebuilder':
#print("bb",args.bb,args.fs,args.o)
if (args.st):
ByteBuilder(args.bb,args.fs,args.o,args.st)
else:
ByteBuilder(args.bb,args.fs,args.o)
if sys.argv[1] == '--seedsprout':
#print("ss",int(args.ss),args.fs,args.o)
SeedSprout(int(args.ss),args.fs,args.o)
if sys.argv[1] == '--infile':
#print("i",args.i)
SeedSprouti(args.i)
main()