From b8d09c6e14ce43b375fcb5006444551713b42a7c Mon Sep 17 00:00:00 2001 From: Stefan Pluecken Date: Fri, 9 Apr 2010 20:40:28 +0200 Subject: [PATCH 1/1] refs bug #467 whitelist dm7025 from tpm test and add beta warning to the documentation --- doc/TPM | 5 +- .../Plugins/DemoPlugins/TPMDemo/plugin.py | 63 ++++++++++--------- 2 files changed, 37 insertions(+), 31 deletions(-) diff --git a/doc/TPM b/doc/TPM index 2b2b2062..20c02300 100644 --- a/doc/TPM +++ b/doc/TPM @@ -1,3 +1,6 @@ +The TPM check is currently to be considered a beta version. So please expect +code changes in the future. + If you'd like to write your own plugins and honor the efforts, Dream Multimedia puts into developing Enigma 2, you can protect your plugin against execution on Non-Dream Multimedia Hardware by implementing a TPM (Trusted Platform Module) @@ -21,4 +24,4 @@ TPM check each time the plugin is called) or directly use it in the Plugins(**kwargs) function and not return the Plugins-list if the TPM check failes (which will prevent the plugin from showing up at all). You can also implement a warning message for all possible TPM failure scenarios. - \ No newline at end of file + diff --git a/lib/python/Plugins/DemoPlugins/TPMDemo/plugin.py b/lib/python/Plugins/DemoPlugins/TPMDemo/plugin.py index dafb2837..0be09ccf 100644 --- a/lib/python/Plugins/DemoPlugins/TPMDemo/plugin.py +++ b/lib/python/Plugins/DemoPlugins/TPMDemo/plugin.py @@ -1,5 +1,6 @@ from Screens.Screen import Screen from Plugins.Plugin import PluginDescriptor +from Tools.HardwareInfo import HardwareInfo from enigma import eTPM import sha @@ -43,38 +44,40 @@ def read_random(): return None def main(session, **kwargs): - rootkey = ['\x9f', '|', '\xe4', 'G', '\xc9', '\xb4', '\xf4', '#', '&', '\xce', '\xb3', '\xfe', '\xda', '\xc9', 'U', '`', '\xd8', '\x8c', 's', 'o', '\x90', '\x9b', '\\', 'b', '\xc0', '\x89', '\xd1', '\x8c', '\x9e', 'J', 'T', '\xc5', 'X', '\xa1', '\xb8', '\x13', '5', 'E', '\x02', '\xc9', '\xb2', '\xe6', 't', '\x89', '\xde', '\xcd', '\x9d', '\x11', '\xdd', '\xc7', '\xf4', '\xe4', '\xe4', '\xbc', '\xdb', '\x9c', '\xea', '}', '\xad', '\xda', 't', 'r', '\x9b', '\xdc', '\xbc', '\x18', '3', '\xe7', '\xaf', '|', '\xae', '\x0c', '\xe3', '\xb5', '\x84', '\x8d', '\r', '\x8d', '\x9d', '2', '\xd0', '\xce', '\xd5', 'q', '\t', '\x84', 'c', '\xa8', ')', '\x99', '\xdc', '<', '"', 'x', '\xe8', '\x87', '\x8f', '\x02', ';', 'S', 'm', '\xd5', '\xf0', '\xa3', '_', '\xb7', 'T', '\t', '\xde', '\xa7', '\xf1', '\xc9', '\xae', '\x8a', '\xd7', '\xd2', '\xcf', '\xb2', '.', '\x13', '\xfb', '\xac', 'j', '\xdf', '\xb1', '\x1d', ':', '?'] + device = HardwareInfo().get_device_name() + if device != "dm7025": + rootkey = ['\x9f', '|', '\xe4', 'G', '\xc9', '\xb4', '\xf4', '#', '&', '\xce', '\xb3', '\xfe', '\xda', '\xc9', 'U', '`', '\xd8', '\x8c', 's', 'o', '\x90', '\x9b', '\\', 'b', '\xc0', '\x89', '\xd1', '\x8c', '\x9e', 'J', 'T', '\xc5', 'X', '\xa1', '\xb8', '\x13', '5', 'E', '\x02', '\xc9', '\xb2', '\xe6', 't', '\x89', '\xde', '\xcd', '\x9d', '\x11', '\xdd', '\xc7', '\xf4', '\xe4', '\xe4', '\xbc', '\xdb', '\x9c', '\xea', '}', '\xad', '\xda', 't', 'r', '\x9b', '\xdc', '\xbc', '\x18', '3', '\xe7', '\xaf', '|', '\xae', '\x0c', '\xe3', '\xb5', '\x84', '\x8d', '\r', '\x8d', '\x9d', '2', '\xd0', '\xce', '\xd5', 'q', '\t', '\x84', 'c', '\xa8', ')', '\x99', '\xdc', '<', '"', 'x', '\xe8', '\x87', '\x8f', '\x02', ';', 'S', 'm', '\xd5', '\xf0', '\xa3', '_', '\xb7', 'T', '\t', '\xde', '\xa7', '\xf1', '\xc9', '\xae', '\x8a', '\xd7', '\xd2', '\xcf', '\xb2', '.', '\x13', '\xfb', '\xac', 'j', '\xdf', '\xb1', '\x1d', ':', '?'] + + etpm = eTPM() + l2cert = etpm.getCert(eTPM.TPMD_DT_LEVEL2_CERT) + if l2cert is None: + print "l2cert not found" + return - etpm = eTPM() - l2cert = etpm.getCert(eTPM.TPMD_DT_LEVEL2_CERT) - if l2cert is None: - print "l2cert not found" - return - - l2key = validate_cert(l2cert, rootkey) - if l2key is None: - print "l2cert invalid" - return - - l3cert = etpm.getCert(eTPM.TPMD_DT_LEVEL3_CERT) - if l3cert is None: - print "l3cert not found (can be fixed by running the genuine dreambox plugin and running the offered update)" - return - - l3key = validate_cert(l3cert, l2key) - if l3key is None: - print "l3cert invalid" - return - - rnd = read_random() - if rnd is None: - print "random error" - return - val = etpm.challenge(rnd) - result = decrypt_block(val, l3key) - if result[80:88] == rnd: + l2key = validate_cert(l2cert, rootkey) + if l2key is None: + print "l2cert invalid" + return + + l3cert = etpm.getCert(eTPM.TPMD_DT_LEVEL3_CERT) + if l3cert is None: + print "l3cert not found (can be fixed by running the genuine dreambox plugin and running the offered update)" + return + + l3key = validate_cert(l3cert, l2key) + if l3key is None: + print "l3cert invalid" + return + + rnd = read_random() + if rnd is None: + print "random error" + return + val = etpm.challenge(rnd) + result = decrypt_block(val, l3key) + if device == "dm7025" or result[80:88] == rnd: print "successfully finished the tpm test" - # would start your plugin here + # would start your plugin here def Plugins(**kwargs): return [PluginDescriptor(name = "TPM Demo", description = _("A demo plugin for TPM usage."), where = PluginDescriptor.WHERE_EXTENSIONSMENU, fnc = main), -- 2.30.2