WebSVN – freemyipod – Diff – /embios/trunk/tools/libipodcrypto.py



def nano2gcryptdfu(data):
    data = data.ljust((len(data) + 0x3f) & ~0x3f, "\0")
    header = "87011.0\0\0\x08\0\0" + struct.pack("<I", len(data))
    embios = libembios.Embios()
    embios.write(0x08000000, header.ljust(0x800, "\0") + data)
    embios.lib.dev.timeout = 20000
    embios.hmac_sha1(0x08000800, len(data), 0x08000010)
    embios.hmac_sha1(0x08000000, 0x40, 0x08000040)
    embios.aesencrypt(0x08000000, len(data) + 0x800, 1)
    return embios.read(0x08000000, len(data) + 0x800)
 
 
def nano2gdecryptdfu(data):
    embios = libembios.Embios()
    embios.write(0x08000000, data)
    embios.lib.dev.timeout = 20000
    embios.aesdecrypt(0x08000000, len(data), 1)
    return embios.read(0x08000800, len(data) - 0x800)
 
 
def nano2gcryptfirmware(data):
    data = data.ljust((len(data) + 0x3f) & ~0x3f, "\0")
    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))
    embios = libembios.Embios()
    embios.write(0x08000000, header.ljust(0x800, "\0") + data)
    embios.lib.dev.timeout = 20000
    embios.hmac_sha1(0x08000800, len(data), 0x0800001c)
    embios.hmac_sha1(0x08000000, 0x200, 0x080001d4)
    embios.aesencrypt(0x08000800, len(data), 1)
    return embios.read(0x08000000, len(data) + 0x800)
 
 
def nano2gdecryptfirmware(data):
    embios = libembios.Embios()
    embios.write(0x08000000, data)
    embios.lib.dev.timeout = 20000
    embios.aesdecrypt(0x08000800, len(data) - 0x800, 1)
    return embios.read(0x08000800, len(data) - 0x800)
 
 
def nano2gcryptdfufile(infile, outfile):

Subversion Repositories freemyipod

(root)/embios/trunk/tools/libipodcrypto.py @ 180 – Rev 179 → 180

Rev 179		Rev 180
Line 33...		Line 33...
33	`def nano2gcryptdfu(data):`	33	`def nano2gcryptdfu(data):`
34	`data = data.ljust((len(data) + 0x3f) & ~0x3f, "\0")`	34	`data = data.ljust((len(data) + 0x3f) & ~0x3f, "\0")`
35	`header = "87011.0\0\0\x08\0\0" + struct.pack("<I", len(data))`	35	`header = "87011.0\0\0\x08\0\0" + struct.pack("<I", len(data))`
36	`embios = libembios.Embios()`	36	`embios = libembios.Embios()`
37	`embios.write(0x08000000, header.ljust(0x800, "\0") + data)`	37	`embios.write(0x08000000, header.ljust(0x800, "\0") + data)`
38	`embios.timeout = 20000`	38	`embios.lib.dev.timeout = 20000`
39	`embios.hmac_sha1(0x08000800, len(data), 0x08000010)`	39	`embios.hmac_sha1(0x08000800, len(data), 0x08000010)`
40	`embios.hmac_sha1(0x08000000, 0x40, 0x08000040)`	40	`embios.hmac_sha1(0x08000000, 0x40, 0x08000040)`
41	`embios.aesencrypt(0x08000000, len(data) + 0x800, 1)`	41	`embios.aesencrypt(0x08000000, len(data) + 0x800, 1)`
42	`return embios.read(0x08000000, len(data) + 0x800)`	42	`return embios.read(0x08000000, len(data) + 0x800)`
43		43
44		44
45	`def nano2gdecryptdfu(data):`	45	`def nano2gdecryptdfu(data):`
46	`embios = libembios.Embios()`	46	`embios = libembios.Embios()`
47	`embios.write(0x08000000, data)`	47	`embios.write(0x08000000, data)`
48	`embios.timeout = 20000`	48	`embios.lib.dev.timeout = 20000`
49	`embios.aesdecrypt(0x08000000, len(data), 1)`	49	`embios.aesdecrypt(0x08000000, len(data), 1)`
50	`return embios.read(0x08000800, len(data) - 0x800)`	50	`return embios.read(0x08000800, len(data) - 0x800)`
51		51
52		52
53	`def nano2gcryptfirmware(data):`	53	`def nano2gcryptfirmware(data):`
54	`data = data.ljust((len(data) + 0x3f) & ~0x3f, "\0")`	54	`data = data.ljust((len(data) + 0x3f) & ~0x3f, "\0")`
55	`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))`	55	`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))`
56	`embios = libembios.Embios()`	56	`embios = libembios.Embios()`
57	`embios.write(0x08000000, header.ljust(0x800, "\0") + data)`	57	`embios.write(0x08000000, header.ljust(0x800, "\0") + data)`
58	`embios.timeout = 20000`	58	`embios.lib.dev.timeout = 20000`
59	`embios.hmac_sha1(0x08000800, len(data), 0x0800001c)`	59	`embios.hmac_sha1(0x08000800, len(data), 0x0800001c)`
60	`embios.hmac_sha1(0x08000000, 0x200, 0x080001d4)`	60	`embios.hmac_sha1(0x08000000, 0x200, 0x080001d4)`
61	`embios.aesencrypt(0x08000800, len(data), 1)`	61	`embios.aesencrypt(0x08000800, len(data), 1)`
62	`return embios.read(0x08000000, len(data) + 0x800)`	62	`return embios.read(0x08000000, len(data) + 0x800)`
63		63
64		64
65	`def nano2gdecryptfirmware(data):`	65	`def nano2gdecryptfirmware(data):`
66	`embios = libembios.Embios()`	66	`embios = libembios.Embios()`
67	`embios.write(0x08000000, data)`	67	`embios.write(0x08000000, data)`
68	`embios.timeout = 20000`	68	`embios.lib.dev.timeout = 20000`
69	`embios.aesdecrypt(0x08000800, len(data) - 0x800, 1)`	69	`embios.aesdecrypt(0x08000800, len(data) - 0x800, 1)`
70	`return embios.read(0x08000800, len(data) - 0x800)`	70	`return embios.read(0x08000800, len(data) - 0x800)`
71		71
72		72
73	`def nano2gcryptdfufile(infile, outfile):`	73	`def nano2gcryptdfufile(infile, outfile):`