freemyipod r180 - Code Review

Repository:	freemyipod
Revision:	< r179‎ \| r180 \| r181 >
Date:	00:49, 27 August 2010
Author:	theseven
Status:	new
Tags:
Comment:	Prevent timeout during installer encryption
Modified paths:	/embios/trunk/tools/libipodcrypto.py (modified) (history)

Diff [purge]

Index: embios/trunk/tools/libipodcrypto.py
—	—	@@ -35,7 +35,7 @@
36	36	header = "87011.0\0\0\x08\0\0" + struct.pack("<I", len(data))
37	37	embios = libembios.Embios()
38	38	embios.write(0x08000000, header.ljust(0x800, "\0") + data)
39		~~- embios.timeout = 20000~~
	39	+ embios.lib.dev.timeout = 20000
40	40	embios.hmac_sha1(0x08000800, len(data), 0x08000010)
41	41	embios.hmac_sha1(0x08000000, 0x40, 0x08000040)
42	42	embios.aesencrypt(0x08000000, len(data) + 0x800, 1)
—	—	@@ -45,7 +45,7 @@
46	46	def nano2gdecryptdfu(data):
47	47	embios = libembios.Embios()
48	48	embios.write(0x08000000, data)
49		~~- embios.timeout = 20000~~
	49	+ embios.lib.dev.timeout = 20000
50	50	embios.aesdecrypt(0x08000000, len(data), 1)
51	51	return embios.read(0x08000800, len(data) - 0x800)
52	52
—	—	@@ -55,7 +55,7 @@
56	56	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))
57	57	embios = libembios.Embios()
58	58	embios.write(0x08000000, header.ljust(0x800, "\0") + data)
59		~~- embios.timeout = 20000~~
	59	+ embios.lib.dev.timeout = 20000
60	60	embios.hmac_sha1(0x08000800, len(data), 0x0800001c)
61	61	embios.hmac_sha1(0x08000000, 0x200, 0x080001d4)
62	62	embios.aesencrypt(0x08000800, len(data), 1)
—	—	@@ -65,7 +65,7 @@
66	66	def nano2gdecryptfirmware(data):
67	67	embios = libembios.Embios()
68	68	embios.write(0x08000000, data)
69		~~- embios.timeout = 20000~~
	69	+ embios.lib.dev.timeout = 20000
70	70	embios.aesdecrypt(0x08000800, len(data) - 0x800, 1)
71	71	return embios.read(0x08000800, len(data) - 0x800)
72	72