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#!/usr/bin/env python
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#
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#
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# Copyright 2010 TheSeven
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#
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#
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# This file is part of emBIOS.
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#
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# emBIOS is free software: you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation, either version 2 of the
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# License, or (at your option) any later version.
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#
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# emBIOS is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with emBIOS. If not, see <http://www.gnu.org/licenses/>.
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#
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#
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import sys
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import struct
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import time
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import libembios
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from libembios import Error
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import libembiosdata
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def nano2gcryptdfu(data):
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data = data.ljust((len(data) + 0x3f) & ~0x3f, "\0")
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header = "87011.0\0\0\x08\0\0" + struct.pack("<I", len(data))
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embios = libembios.Embios()
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embios.write(0x08000000, header.ljust(0x800, "\0") + data)
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embios.timeout = 20000
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embios.hmac_sha1(0x08000800, len(data), 0x08000010)
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embios.hmac_sha1(0x08000000, 0x40, 0x08000040)
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embios.aesencrypt(0x08000000, len(data) + 0x800, 1)
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return embios.read(0x08000000, len(data) + 0x800)
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def nano2gdecryptdfu(data):
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embios = libembios.Embios()
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embios.write(0x08000000, data)
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embios.timeout = 20000
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embios.aesdecrypt(0x08000000, len(data), 1)
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return embios.read(0x08000800, len(data) - 0x800)
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def nano2gcryptfirmware(data):
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data = data.ljust((len(data) + 0x3f) & ~0x3f, "\0")
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header = "\0\0\0\0\0x02\0\0\0\0x01\0\0\0\0x40\0\0\0\0\0\0\0" + struct.pack("<I", len(data))
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embios = libembios.Embios()
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embios.write(0x08000000, header.ljust(0x800, "\0") + data)
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embios.timeout = 20000
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embios.hmac_sha1(0x08000800, len(data), 0x0800001c)
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embios.hmac_sha1(0x08000000, 0x200, 0x080001d4)
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embios.aesencrypt(0x08000800, len(data), 1)
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return embios.read(0x08000000, len(data) + 0x800)
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def nano2gdecryptfirmware(data):
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embios = libembios.Embios()
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embios.write(0x08000000, data)
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embios.timeout = 20000
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embios.aesdecrypt(0x08000800, len(data) - 0x800, 1)
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return embios.read(0x08000800, len(data) - 0x800)
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def nano2gcryptdfufile(infile, outfile):
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print(outfile)
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infile = open(infile, "rb")
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outfile = open(outfile, "wb")
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outfile.write(nano2gcryptdfu(infile.read()))
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infile.close()
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outfile.close()
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def nano2gdecryptdfufile(infile, outfile):
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infile = open(infile, "rb")
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outfile = open(outfile, "wb")
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outfile.write(nano2gdecryptdfu(infile.read()))
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infile.close()
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outfile.close()
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def nano2gcryptfirmwarefile(infile, outfile):
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infile = open(infile, "rb")
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outfile = open(outfile, "wb")
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outfile.write(nano2gcryptfirmware(infile.read()))
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infile.close()
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outfile.close()
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def nano2gdecryptfirmwarefile(infile, outfile):
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infile = open(infile, "rb")
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outfile = open(outfile, "wb")
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outfile.write(nano2gdecryptfirmware(infile.read()))
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infile.close()
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outfile.close()
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