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opscrypto.py
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opscrypto.py
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#!/usr/bin/env python3
# Oneplus Decrypter (c) V 1.4 B.Kerler 2019-2022
# Licensed under MIT License
import shutil
import os
from struct import pack, unpack
import xml.etree.ElementTree as et
import hashlib
from pathlib import Path
from queue import Queue
import mmap
def mmap_io(filename, mode, length=0):
if mode == "rb":
with open(filename, mode="rb") as file_obj:
return mmap.mmap(file_obj.fileno(), length=0, access=mmap.ACCESS_READ)
elif mode == "wb":
if os.path.exists(filename):
length = os.stat(filename).st_size
else:
with open(filename, "wb") as wf:
wf.write(length * b'\0')
wf.close()
with open(filename, mode="r+b") as file_obj:
return mmap.mmap(file_obj.fileno(), length=length, access=mmap.ACCESS_WRITE)
# mmap_obj.flush() on finish
key = unpack("<4I", bytes.fromhex("d1b5e39e5eea049d671dd5abd2afcbaf"))
# guacamoles_31_O.09_190820
mbox5 = [0x60, 0x8a, 0x3f, 0x2d, 0x68, 0x6b, 0xd4, 0x23, 0x51, 0x0c,
0xd0, 0x95, 0xbb, 0x40, 0xe9, 0x76, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x0a, 0x00]
# instantnoodlev_15_O.07_201103
mbox6 = [0xAA, 0x69, 0x82, 0x9E, 0x5D, 0xDE, 0xB1, 0x3D, 0x30, 0xBB,
0x81, 0xA3, 0x46, 0x65, 0xa3, 0xe1, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x0a, 0x00]
# guacamolet_21_O.08_190502
mbox4 = [0xC4, 0x5D, 0x05, 0x71, 0x99, 0xDD, 0xBB, 0xEE, 0x29, 0xA1,
0x6D, 0xC7, 0xAD, 0xBF, 0xA4, 0x3F, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x0a, 0x00]
sbox = bytes.fromhex("c66363a5c66363a5f87c7c84f87c7c84ee777799ee777799f67b7b8df67b7b8d" +
"fff2f20dfff2f20dd66b6bbdd66b6bbdde6f6fb1de6f6fb191c5c55491c5c554" +
"60303050603030500201010302010103ce6767a9ce6767a9562b2b7d562b2b7d" +
"e7fefe19e7fefe19b5d7d762b5d7d7624dababe64dababe6ec76769aec76769a" +
"8fcaca458fcaca451f82829d1f82829d89c9c94089c9c940fa7d7d87fa7d7d87" +
"effafa15effafa15b25959ebb25959eb8e4747c98e4747c9fbf0f00bfbf0f00b" +
"41adadec41adadecb3d4d467b3d4d4675fa2a2fd5fa2a2fd45afafea45afafea" +
"239c9cbf239c9cbf53a4a4f753a4a4f7e4727296e47272969bc0c05b9bc0c05b" +
"75b7b7c275b7b7c2e1fdfd1ce1fdfd1c3d9393ae3d9393ae4c26266a4c26266a" +
"6c36365a6c36365a7e3f3f417e3f3f41f5f7f702f5f7f70283cccc4f83cccc4f" +
"6834345c6834345c51a5a5f451a5a5f4d1e5e534d1e5e534f9f1f108f9f1f108" +
"e2717193e2717193abd8d873abd8d87362313153623131532a15153f2a15153f" +
"0804040c0804040c95c7c75295c7c75246232365462323659dc3c35e9dc3c35e" +
"3018182830181828379696a1379696a10a05050f0a05050f2f9a9ab52f9a9ab5" +
"0e0707090e07070924121236241212361b80809b1b80809bdfe2e23ddfe2e23d" +
"cdebeb26cdebeb264e2727694e2727697fb2b2cd7fb2b2cdea75759fea75759f" +
"1209091b1209091b1d83839e1d83839e582c2c74582c2c74341a1a2e341a1a2e" +
"361b1b2d361b1b2ddc6e6eb2dc6e6eb2b45a5aeeb45a5aee5ba0a0fb5ba0a0fb" +
"a45252f6a45252f6763b3b4d763b3b4db7d6d661b7d6d6617db3b3ce7db3b3ce" +
"5229297b5229297bdde3e33edde3e33e5e2f2f715e2f2f711384849713848497" +
"a65353f5a65353f5b9d1d168b9d1d1680000000000000000c1eded2cc1eded2c" +
"4020206040202060e3fcfc1fe3fcfc1f79b1b1c879b1b1c8b65b5bedb65b5bed" +
"d46a6abed46a6abe8dcbcb468dcbcb4667bebed967bebed97239394b7239394b" +
"944a4ade944a4ade984c4cd4984c4cd4b05858e8b05858e885cfcf4a85cfcf4a" +
"bbd0d06bbbd0d06bc5efef2ac5efef2a4faaaae54faaaae5edfbfb16edfbfb16" +
"864343c5864343c59a4d4dd79a4d4dd766333355663333551185859411858594" +
"8a4545cf8a4545cfe9f9f910e9f9f9100402020604020206fe7f7f81fe7f7f81" +
"a05050f0a05050f0783c3c44783c3c44259f9fba259f9fba4ba8a8e34ba8a8e3" +
"a25151f3a25151f35da3a3fe5da3a3fe804040c0804040c0058f8f8a058f8f8a" +
"3f9292ad3f9292ad219d9dbc219d9dbc7038384870383848f1f5f504f1f5f504" +
"63bcbcdf63bcbcdf77b6b6c177b6b6c1afdada75afdada754221216342212163" +
"2010103020101030e5ffff1ae5ffff1afdf3f30efdf3f30ebfd2d26dbfd2d26d" +
"81cdcd4c81cdcd4c180c0c14180c0c142613133526131335c3ecec2fc3ecec2f" +
"be5f5fe1be5f5fe1359797a2359797a2884444cc884444cc2e1717392e171739" +
"93c4c45793c4c45755a7a7f255a7a7f2fc7e7e82fc7e7e827a3d3d477a3d3d47" +
"c86464acc86464acba5d5de7ba5d5de73219192b3219192be6737395e6737395" +
"c06060a0c06060a019818198198181989e4f4fd19e4f4fd1a3dcdc7fa3dcdc7f" +
"4422226644222266542a2a7e542a2a7e3b9090ab3b9090ab0b8888830b888883" +
"8c4646ca8c4646cac7eeee29c7eeee296bb8b8d36bb8b8d32814143c2814143c" +
"a7dede79a7dede79bc5e5ee2bc5e5ee2160b0b1d160b0b1daddbdb76addbdb76" +
"dbe0e03bdbe0e03b6432325664323256743a3a4e743a3a4e140a0a1e140a0a1e" +
"924949db924949db0c06060a0c06060a4824246c4824246cb85c5ce4b85c5ce4" +
"9fc2c25d9fc2c25dbdd3d36ebdd3d36e43acacef43acacefc46262a6c46262a6" +
"399191a8399191a8319595a4319595a4d3e4e437d3e4e437f279798bf279798b" +
"d5e7e732d5e7e7328bc8c8438bc8c8436e3737596e373759da6d6db7da6d6db7" +
"018d8d8c018d8d8cb1d5d564b1d5d5649c4e4ed29c4e4ed249a9a9e049a9a9e0" +
"d86c6cb4d86c6cb4ac5656faac5656faf3f4f407f3f4f407cfeaea25cfeaea25" +
"ca6565afca6565aff47a7a8ef47a7a8e47aeaee947aeaee91008081810080818" +
"6fbabad56fbabad5f0787888f07878884a25256f4a25256f5c2e2e725c2e2e72" +
"381c1c24381c1c2457a6a6f157a6a6f173b4b4c773b4b4c797c6c65197c6c651" +
"cbe8e823cbe8e823a1dddd7ca1dddd7ce874749ce874749c3e1f1f213e1f1f21" +
"964b4bdd964b4bdd61bdbddc61bdbddc0d8b8b860d8b8b860f8a8a850f8a8a85" +
"e0707090e07070907c3e3e427c3e3e4271b5b5c471b5b5c4cc6666aacc6666aa" +
"904848d8904848d80603030506030305f7f6f601f7f6f6011c0e0e121c0e0e12" +
"c26161a3c26161a36a35355f6a35355fae5757f9ae5757f969b9b9d069b9b9d0" +
"178686911786869199c1c15899c1c1583a1d1d273a1d1d27279e9eb9279e9eb9" +
"d9e1e138d9e1e138ebf8f813ebf8f8132b9898b32b9898b32211113322111133" +
"d26969bbd26969bba9d9d970a9d9d970078e8e89078e8e89339494a7339494a7" +
"2d9b9bb62d9b9bb63c1e1e223c1e1e221587879215878792c9e9e920c9e9e920" +
"87cece4987cece49aa5555ffaa5555ff5028287850282878a5dfdf7aa5dfdf7a" +
"038c8c8f038c8c8f59a1a1f859a1a1f809898980098989801a0d0d171a0d0d17" +
"65bfbfda65bfbfdad7e6e631d7e6e631844242c6844242c6d06868b8d06868b8" +
"824141c3824141c3299999b0299999b05a2d2d775a2d2d771e0f0f111e0f0f11" +
"7bb0b0cb7bb0b0cba85454fca85454fc6dbbbbd66dbbbbd62c16163a2c16163a")
class QCSparse:
def __init__(self, filename):
self.rf = mmap_io(filename, "rb")
self.data = Queue()
self.offset = 0
self.tmpdata = bytearray()
self.major_version = None
self.minor_version = None
self.file_hdr_sz = None
self.chunk_hdr_sz = None
self.blk_sz = None
self.total_blks = None
self.total_chunks = None
self.image_checksum = None
self.info = print
self.debug = print
self.error = print
self.warning = print
def readheader(self, offset):
self.rf.seek(offset)
header = unpack("<I4H4I", self.rf.read(0x1C))
magic = header[0]
self.major_version = header[1]
self.minor_version = header[2]
self.file_hdr_sz = header[3]
self.chunk_hdr_sz = header[4]
self.blk_sz = header[5]
self.total_blks = header[6]
self.total_chunks = header[7]
self.image_checksum = header[8]
if magic != 0xED26FF3A:
return False
if self.file_hdr_sz != 28:
self.error("The file header size was expected to be 28, but is %u." % self.file_hdr_sz)
return False
if self.chunk_hdr_sz != 12:
self.error("The chunk header size was expected to be 12, but is %u." % self.chunk_hdr_sz)
return False
self.info("Sparse Format detected. Using unpacked image.")
return True
def get_chunk_size(self):
if self.total_blks < self.offset:
self.error(
"The header said we should have %u output blocks, but we saw %u" % (self.total_blks, self.offset))
return -1
header = unpack("<2H2I", self.rf.read(self.chunk_hdr_sz))
chunk_type = header[0]
chunk_sz = header[2]
total_sz = header[3]
data_sz = total_sz - 12
if chunk_type == 0xCAC1:
if data_sz != (chunk_sz * self.blk_sz):
self.error(
"Raw chunk input size (%u) does not match output size (%u)" % (data_sz, chunk_sz * self.blk_sz))
return -1
else:
self.rf.seek(self.rf.tell() + chunk_sz * self.blk_sz)
return chunk_sz * self.blk_sz
elif chunk_type == 0xCAC2:
if data_sz != 4:
self.error("Fill chunk should have 4 bytes of fill, but this has %u" % data_sz)
return -1
else:
return chunk_sz * self.blk_sz // 4
elif chunk_type == 0xCAC3:
return chunk_sz * self.blk_sz
elif chunk_type == 0xCAC4:
if data_sz != 4:
self.error("CRC32 chunk should have 4 bytes of CRC, but this has %u" % data_sz)
return -1
else:
self.rf.seek(self.rf.tell() + 4)
return 0
else:
self.debug("Unknown chunk type 0x%04X" % chunk_type)
return -1
def unsparse(self):
if self.total_blks < self.offset:
self.error(
"The header said we should have %u output blocks, but we saw %u" % (self.total_blks, self.offset))
return -1
header = unpack("<2H2I", self.rf.read(self.chunk_hdr_sz))
chunk_type = header[0]
chunk_sz = header[2]
total_sz = header[3]
data_sz = total_sz - 12
if chunk_type == 0xCAC1:
if data_sz != (chunk_sz * self.blk_sz):
self.error(
"Raw chunk input size (%u) does not match output size (%u)" % (data_sz, chunk_sz * self.blk_sz))
return -1
else:
# self.debug("Raw data")
data = self.rf.read(chunk_sz * self.blk_sz)
self.offset += chunk_sz
return data
elif chunk_type == 0xCAC2:
if data_sz != 4:
self.error("Fill chunk should have 4 bytes of fill, but this has %u" % data_sz)
return -1
else:
fill_bin = self.rf.read(4)
# self.debug(format("Fill with 0x%08X" % fill))
data = fill_bin * (chunk_sz * self.blk_sz // 4)
self.offset += chunk_sz
return data
elif chunk_type == 0xCAC3:
data = b'\x00' * chunk_sz * self.blk_sz
self.offset += chunk_sz
return data
elif chunk_type == 0xCAC4:
if data_sz != 4:
self.error("CRC32 chunk should have 4 bytes of CRC, but this has %u" % data_sz)
return -1
else:
# self.debug(format("Unverified CRC32 0x%08X" % crc))
return b""
else:
# self.debug("Unknown chunk type 0x%04X" % chunk_type)
return -1
def getsize(self):
self.rf.seek(0x1C)
length = 0
chunk = 0
while chunk < self.total_chunks:
tlen = self.get_chunk_size()
if tlen == -1:
break
length += tlen
chunk += 1
self.rf.seek(0x1C)
return length
def read(self, length=None):
if length is None:
return self.unsparse()
if length <= len(self.tmpdata):
tdata = self.tmpdata[:length]
self.tmpdata = self.tmpdata[length:]
return tdata
while len(self.tmpdata) < length:
self.tmpdata.extend(self.unsparse())
if length <= len(self.tmpdata):
tdata = self.tmpdata[:length]
self.tmpdata = self.tmpdata[length:]
return tdata
def gsbox(offset):
return int.from_bytes(sbox[offset:offset + 4], 'little')
def key_update(iv1, asbox):
d = iv1[0] ^ asbox[0] # 9EE3B5B1
a = iv1[1] ^ asbox[1]
b = iv1[2] ^ asbox[2] # ABD51D58
c = iv1[3] ^ asbox[3] # AFCBAFFF
e = gsbox(((b >> 0x10) & 0xff) * 8 + 2) ^ gsbox(((a >> 8) & 0xff) * 8 + 3) ^ gsbox((c >> 0x18) * 8 + 1) ^ \
gsbox((d & 0xff) * 8) ^ asbox[4] # 35C2A10B
h = gsbox(((c >> 0x10) & 0xff) * 8 + 2) ^ gsbox(((b >> 8) & 0xff) * 8 + 3) ^ gsbox((d >> 0x18) * 8 + 1) ^ \
gsbox((a & 0xff) * 8) ^ asbox[5] # 75CF3118
i = gsbox(((d >> 0x10) & 0xff) * 8 + 2) ^ gsbox(((c >> 8) & 0xff) * 8 + 3) ^ gsbox((a >> 0x18) * 8 + 1) ^ \
gsbox((b & 0xff) * 8) ^ asbox[6] # 6AD3F5C4
a = gsbox(((d >> 8) & 0xff) * 8 + 3) ^ gsbox(((a >> 0x10) & 0xff) * 8 + 2) ^ gsbox((b >> 0x18) * 8 + 1) ^ \
gsbox((c & 0xff) * 8) ^ asbox[7] # D99AC8FB
g = 8
for f in range(asbox[0x3c] - 2):
d = e >> 0x18 # 35
m = h >> 0x10 # cf
s = h >> 0x18
z = e >> 0x10
l = i >> 0x18
t = e >> 8
e = gsbox(((i >> 0x10) & 0xff) * 8 + 2) ^ gsbox(((h >> 8) & 0xff) * 8 + 3) ^ \
gsbox((a >> 0x18) * 8 + 1) ^ gsbox((e & 0xff) * 8) ^ asbox[g] # B67F2106, 82508918
h = gsbox(((a >> 0x10) & 0xff) * 8 + 2) ^ gsbox(((i >> 8) & 0xff) * 8 + 3) ^ \
gsbox(d * 8 + 1) ^ gsbox((h & 0xff) * 8) ^ asbox[g + 1] # 85813F52
i = gsbox((z & 0xff) * 8 + 2) ^ gsbox(((a >> 8) & 0xff) * 8 + 3) ^ \
gsbox(s * 8 + 1) ^ gsbox((i & 0xff) * 8) ^ asbox[g + 2] # C8022573
a = gsbox((t & 0xff) * 8 + 3) ^ gsbox((m & 0xff) * 8 + 2) ^ \
gsbox(l * 8 + 1) ^ gsbox((a & 0xff) * 8) ^ asbox[g + 3] # AD34EC55
g = g + 4
# a=6DB8AA0E
# b=ABD51D58
# c=AFCBAFFF
# d=51
# e=AC402324
# h=B2D24440
# i=CC2ADF24
# t=510805
return [(gsbox(((i >> 0x10) & 0xff) * 8) & 0xff0000) ^ (gsbox(((h >> 8) & 0xff) * 8 + 1) & 0xff00) ^
(gsbox((a >> 0x18) * 8 + 3) & 0xff000000) ^ gsbox((e & 0xff) * 8 + 2) & 0xFF ^ asbox[g],
(gsbox(((a >> 0x10) & 0xff) * 8) & 0xff0000) ^ (gsbox(((i >> 8) & 0xff) * 8 + 1) & 0xff00) ^
(gsbox((e >> 0x18) * 8 + 3) & 0xff000000) ^ (gsbox((h & 0xff) * 8 + 2) & 0xFF) ^ asbox[g + 3],
(gsbox(((e >> 0x10) & 0xff) * 8) & 0xff0000) ^ (gsbox(((a >> 8) & 0xff) * 8 + 1) & 0xff00) ^
(gsbox((h >> 0x18) * 8 + 3) & 0xff000000) ^ (gsbox((i & 0xff) * 8 + 2) & 0xFF) ^ asbox[g + 2],
(gsbox(((h >> 0x10) & 0xff) * 8) & 0xff0000) ^ (gsbox(((e >> 8) & 0xff) * 8 + 1) & 0xff00) ^
(gsbox((i >> 0x18) * 8 + 3) & 0xff000000) ^ (gsbox((a & 0xff) * 8 + 2) & 0xFF) ^ asbox[g + 1]]
def key_custom(inp, rkey, outlength=0, encrypt=False):
outp = bytearray()
inp = bytearray(inp)
pos = outlength
outp_extend = outp.extend
ptr = 0
length = len(inp)
if outlength != 0:
while pos < len(rkey):
if length == 0:
break
buffer = inp[pos]
outp_extend(rkey[pos] ^ buffer)
rkey[pos] = buffer
length -= 1
pos += 1
if length > 0xF:
for ptr in range(0, length, 0x10):
rkey = key_update(rkey, mbox)
if pos < 0x10:
slen = ((0xf - pos) >> 2) + 1
tmp = [rkey[i] ^ int.from_bytes(inp[pos + (i * 4) + ptr:pos + (i * 4) + ptr + 4], "little") for i in
range(0, slen)]
outp.extend(b"".join(tmp[i].to_bytes(4, 'little') for i in range(0, slen)))
if encrypt:
rkey = tmp
else:
rkey = [int.from_bytes(inp[pos + (i * 4) + ptr:pos + (i * 4) + ptr + 4], "little") for i in
range(0, slen)]
length = length - 0x10
if length != 0:
rkey = key_update(rkey, sbox)
j = pos
m = 0
while length > 0:
data = inp[j + ptr:j + ptr + 4]
if len(data) < 4:
data += b"\x00" * (4 - len(data))
tmp = int.from_bytes(data, 'little')
outp_extend((tmp ^ rkey[m]).to_bytes(4, 'little'))
if encrypt:
rkey[m] = tmp ^ rkey[m]
else:
rkey[m] = tmp
length -= 4
j += 4
m += 1
return outp
def extractxml(filename, key):
with mmap_io(filename, 'rb') as rf:
sfilename = os.path.join(filename[:-len(os.path.basename(filename))], "extract", "settings.xml")
filesize = os.stat(filename).st_size
rf.seek(filesize - 0x200)
hdr = rf.read(0x200)
xmllength = int.from_bytes(hdr[0x18:0x18 + 4], 'little')
xmlpad = 0x200 - (xmllength % 0x200)
rf.seek(filesize - 0x200 - (xmllength + xmlpad))
inp = rf.read(xmllength + xmlpad)
outp = key_custom(inp, key, 0)
if b"xml " not in outp:
return None
with mmap_io(sfilename, 'wb', xmllength) as wf:
wf.write(outp[:xmllength])
return outp[:xmllength].decode('utf-8')
def decryptfile(rkey, filename, path, wfilename, start, length):
sha256 = hashlib.sha256()
print(f"Extracting {wfilename}")
with mmap_io(filename, 'rb') as rf:
rf.seek(start)
data = rf.read(length)
if length % 4:
data += (4 - (length % 4)) * b'\x00'
outp = key_custom(data, rkey, 0)
sha256.update(outp[:length])
with mmap_io(os.path.join(path, wfilename), 'wb', length) as wf:
wf.write(outp[:length])
if length % 0x1000 > 0:
sha256.update(b"\x00" * (0x1000 - (length % 0x1000)))
return sha256.hexdigest()
def encryptsubsub(rkey, data, wf):
length = len(data)
if length % 4:
data += (4 - (length % 4)) * b'\x00'
outp = key_custom(data, rkey, 0, True)
wf.write(outp[:length])
return length
def encryptsub(rkey, rf, wf):
data = rf.read()
return encryptsubsub(rkey, data, wf)
def encryptfile(key, filename, wfilename):
print(f"Encrypting {filename}")
with mmap_io(filename, 'rb') as rf:
filesize = os.stat(filename).st_size
with mmap_io(wfilename, 'wb', filesize) as wf:
return encryptsub(key, rf, wf)
def calc_digest(filename):
with mmap_io(filename, 'rb') as rf:
data = rf.read()
sha256 = hashlib.sha256()
sha256.update(data)
if len(data) % 0x1000 > 0:
sha256.update(b"\x00" * (0x1000 - (len(data) % 0x1000)))
return sha256.hexdigest()
def copysub(rf, wf, start, length):
rf.seek(start)
rlen = 0
while length > 0:
if length < 0x100000:
size = length
else:
size = 0x100000
data = rf.read(size)
wf.write(data)
rlen += len(data)
length -= size
return rlen
def copyfile(filename, path, wfilename, start, length):
print(f"Extracting {wfilename}")
with mmap_io(filename, 'rb') as rf:
with mmap_io(os.path.join(path, wfilename), 'wb', length) as wf:
return copysub(rf, wf, start, length)
def encryptitem(key, item, directory, pos, wf):
try:
filename = item.attrib["Path"]
except:
filename = item.attrib["filename"]
if filename == "":
return item, pos
filename = os.path.join(directory, filename)
start = pos // 0x200
item.attrib["FileOffsetInSrc"] = str(start)
size = os.stat(filename).st_size
item.attrib["SizeInByteInSrc"] = str(size)
sectors = size // 0x200
if (size % 0x200) != 0:
sectors += 1
item.attrib["SizeInSectorInSrc"] = str(sectors)
with mmap_io(filename, 'rb') as rf:
rlen = encryptsub(key, rf, wf)
pos += rlen
if (rlen % 0x200) != 0:
sublen = 0x200 - (rlen % 0x200)
wf.write(b'\x00' * sublen)
pos += sublen
return item, pos
def copyitem(item, directory, pos, wf):
try:
filename = item.attrib["Path"]
except:
filename = item.attrib["filename"]
if filename == "":
return item, pos
filename = os.path.join(directory, filename)
start = pos // 0x200
item.attrib["FileOffsetInSrc"] = str(start)
size = os.stat(filename).st_size
item.attrib["SizeInByteInSrc"] = str(size)
sectors = size // 0x200
if (size % 0x200) != 0:
sectors += 1
item.attrib["SizeInSectorInSrc"] = str(sectors)
with mmap_io(filename, 'rb') as rf:
rlen = copysub(rf, wf, 0, size)
pos += rlen
if (rlen % 0x200) != 0:
sublen = 0x200 - (rlen % 0x200)
wf.write(b'\x00' * sublen)
pos += sublen
return item, pos
def main(args):
global mbox
print("Oneplus CryptTools V1.4 (c) B. Kerler 2019-2021\n----------------------------\n")
if args["decrypt"]:
filename = args["<filename>"].replace("\\", "/")
print(f"Extracting {filename}")
if args['outdir']:
path = args['outdir']
elif "/" in filename:
path = filename[:filename.rfind("/")]
else:
path = ""
path = os.path.join(path, "extract")
if os.path.exists(path):
shutil.rmtree(path)
os.mkdir(path)
else:
os.mkdir(path)
mbox = mbox5
xml = extractxml(filename, key)
if xml is not None:
print("MBox5")
else:
mbox = mbox6
xml = extractxml(filename, key)
if xml is not None:
print("MBox6")
else:
mbox = mbox4
xml = extractxml(filename, key)
if xml is not None:
print("MBox4")
else:
print("Unsupported key !")
exit(0)
root = et.fromstring(xml)
for child in root:
if child.tag == "SAHARA":
for item in child:
if item.tag == "File":
wfilename = item.attrib["Path"]
start = int(item.attrib["FileOffsetInSrc"]) * 0x200
slength = int(item.attrib["SizeInSectorInSrc"]) * 0x200
length = int(item.attrib["SizeInByteInSrc"])
decryptfile(key, filename, path, wfilename, start, length)
elif child.tag == "UFS_PROVISION":
for item in child:
if item.tag == "File":
wfilename = item.attrib["Path"]
start = int(item.attrib["FileOffsetInSrc"]) * 0x200
# length = int(item.attrib["SizeInSectorInSrc"]) * 0x200
length = int(item.attrib["SizeInByteInSrc"])
copyfile(filename, path, wfilename, start, length)
elif "Program" in child.tag:
# if not os.path.exists(os.path.join(path, child.tag)):
# os.mkdir(os.path.join(path, child.tag))
# spath = os.path.join(path, child.tag)
for item in child:
if "filename" in item.attrib:
sparse = item.attrib["sparse"] == "true"
wfilename = item.attrib["filename"]
if wfilename == "":
continue
start = int(item.attrib["FileOffsetInSrc"]) * 0x200
slength = int(item.attrib["SizeInSectorInSrc"]) * 0x200
length = int(item.attrib["SizeInByteInSrc"])
sha256 = item.attrib["Sha256"]
copyfile(filename, path, wfilename, start, length)
csha256 = calc_digest(os.path.join(path, wfilename))
if sha256 != csha256 and not sparse:
print("Sha256 fail.")
else:
for subitem in item:
if "filename" in subitem.attrib:
wfilename = subitem.attrib["filename"]
sparse = subitem.attrib["sparse"] == "true"
if wfilename == "":
continue
start = int(subitem.attrib["FileOffsetInSrc"]) * 0x200
slength = int(subitem.attrib["SizeInSectorInSrc"]) * 0x200
length = int(subitem.attrib["SizeInByteInSrc"])
sha256 = subitem.attrib["Sha256"]
copyfile(filename, path, wfilename, start, length)
csha256 = calc_digest(os.path.join(path, wfilename))
if sha256 != csha256 and not sparse:
print("Sha256 fail.")
# else:
# print (child.tag, child.attrib)
print("Done. Extracted files to " + path)
exit(0)
elif args["encrypt"]:
if args["--mbox"] == "4":
mbox = mbox4
elif args["--mbox"] == "5":
mbox = mbox5
elif args["--mbox"] == "6":
mbox = mbox6
directory = args["<directory>"].replace("\\", "/")
settings = os.path.join(directory, "settings.xml")
# root = ET.fromstring(settings)
tree = et.parse(settings)
root = tree.getroot()
outfilename = os.path.join(Path(directory).parent, args["--savename"])
projid = None
firmware = None
if os.path.exists(outfilename):
os.remove(outfilename)
with open(outfilename, 'wb') as wf:
pos = 0
for child in root:
if child.tag == "BasicInfo":
if "Project" in child.attrib:
projid = child.attrib["Project"]
if "Version" in child.attrib:
firmware = child.attrib["Version"]
if child.tag == "SAHARA":
for item in child:
if item.tag == "File":
item, pos = encryptitem(key, item, directory, pos, wf)
elif child.tag == "UFS_PROVISION":
for item in child:
if item.tag == "File":
item, pos = copyitem(item, directory, pos, wf)
elif "Program" in child.tag:
for item in child:
if "filename" in item.attrib:
item, pos = copyitem(item, directory, pos, wf)
else:
for subitem in item:
subitem, pos = copyitem(subitem, directory, pos, wf)
try:
configpos = pos // 0x200
with open(settings, 'rb') as rf:
data = rf.read()
rlength = len(data)
data += (0x10 - (rlength % 0x10)) * b"\x00"
rlen = encryptsubsub(key, data, wf)
if ((rlen + pos) % 0x200) != 0:
sublen = 0x200 - ((rlen + pos) % 0x200)
wf.write(b'\x00' * sublen)
pos += sublen
if args["--projid"] is None:
if projid is None:
projid = "18801"
else:
projid = args["--projid"]
if args["--firmwarename"] is None:
if firmware is None:
firmware = "fajita_41_J.42_191214"
else:
firmware = args["--firmwarename"]
magic = 0x7CEF
hdr = b""
hdr += pack("<I", 2)
hdr += pack("<I", 1)
hdr += pack("<I", 0)
hdr += pack("<I", 0)
hdr += pack("<I", magic)
hdr += pack("<I", configpos)
hdr += pack("<I", rlength)
hdr += bytes(projid, 'utf-8')
hdr += b"\x00" * (0x10 - len(projid))
hdr += bytes(firmware, 'utf-8')
hdr += b"\x00" * (0x200 - len(hdr))
wf.write(hdr)
with open(outfilename, 'rb') as rt:
with open("md5sum_pack.md5", 'wb') as wt:
mt = hashlib.md5()
mt.update(rt.read())
wt.write(bytes(mt.hexdigest(), 'utf-8') + b" " + bytes(os.path.basename(outfilename), 'utf-8'))
print("Done. Created " + outfilename)
except Exception as e:
print(e)
exit(0)
elif args["encryptfile"]:
filename = args["<filename>"].replace("\\", "/")
mbox = mbox5
encryptfile(key, filename, filename + ".enc")
print("Done.")
elif args["decryptfile"]:
filename = args["<filename>"].replace("\\", "/")
mbox = mbox5
fsize = os.stat(filename).st_size
decryptfile(key, filename, "", filename + ".dec", 0, fsize)
print("Done.")
else:
print("Usage:./opsdecrypt.py decrypt [filename.ops]")
exit(0)