def process_rule_A001(rule_file_name, cps):
key = '0123456789ABCDEF1111111111111111' #默认解密key
rule_handle = RuleXml(rule_file_name)
handleA001_node = rule_handle.get_first_node(rule_handle.root_element,
'HandleA001')
if not handleA001_node:
return cps
key = rule_handle.get_attribute(handleA001_node, 'key')
for dgi_item in cps.dgi_list:
if dgi_item.name == 'A001':
tag8020 = ''
tag9020 = ''
tagA001 = ''
value = dgi_item.get_value('A001')
dgi_len = len(value)
for i in range(0, dgi_len, 34):
tagA001 += value[i:i + 2] + '010000FF0000'
data = algorithm.des3_ecb_decrypt(key, value[i + 2:i + 34])
tag8020 += data
tag9020 += algorithm.gen_kcv(data)
dgi_item.modify_value('A001', tagA001)
dgi8020 = Dgi()
dgi8020.name = '8020'
dgi8020.add_tag_value('8020', tag8020)
dgi9020 = Dgi()
dgi9020.name = '9020'
dgi9020.add_tag_value('8020', tag9020)
cps.add_dgi(dgi8020)
cps.add_dgi(dgi9020)
break
return cps
def process_EF02(cps):
data_ef02 = ''
for item in cps.dgi_list:
if item.name == '01':
data_ef02 = item.get_value('EF02')
data_ef02 = data_ef02[8:] #EF02总长度
for i in range(8):
bcd_item_len = data_ef02[0 : 8]
n_item_len = int(utils.bcd_to_str(bcd_item_len)) * 2
value = data_ef02[8 : 8 + n_item_len]
data_ef02 = data_ef02[8 + n_item_len :]
dgi = Dgi()
if i == 3:
dgi.name = '8205'
dgi.add_tag_value(dgi.name,value)
cps.add_dgi(dgi)
elif i == 4:
dgi.name = '8204'
dgi.add_tag_value(dgi.name,value)
cps.add_dgi(dgi)
elif i == 5:
dgi.name = '8203'
dgi.add_tag_value(dgi.name,value)
cps.add_dgi(dgi)
elif i == 6:
dgi.name = '8202'
dgi.add_tag_value(dgi.name,value)
cps.add_dgi(dgi)
elif i == 7:
dgi.name = '8201'
dgi.add_tag_value(dgi.name,value)
cps.add_dgi(dgi)
return cps
def process_pse_and_ppse(fh, dgi_name, has_template):
dgi = Dgi()
data = ''
dgi_mark = fh.read_binary(fh.current_offset, 1) #DGI标识
if dgi_mark != '86':
return
next_len = get_next_len(fh)
if has_template:
fh.read_binary(fh.current_offset, 1) #读取70模板
next_len = get_next_len(fh)
data = fh.read_binary(fh.current_offset, next_len)
else:
data = fh.read_binary(fh.current_offset, next_len)
if dgi_name == 'Store_PSE_1':
dgi.name = 'PSE'
#value = dgi.assemble_tlv('0101',data)
dgi.add_tag_value('0101', data)
elif dgi_name == 'Store_PSE_2':
dgi.name = 'PSE'
value = utils.assemble_tlv('A5', '880101' + data)
dgi.add_tag_value('9102', value)
elif dgi_name == 'Store_PPSE':
dgi.name = 'PPSE'
value = utils.assemble_tlv('BF0C', data)
value = utils.assemble_tlv('A5', value)
dgi.add_tag_value('9102', value)
else:
dgi.name = 'F001'
dgi.add_tag_value('F001', data)
return dgi
def process_pse(dgi,data):
pse_dgi = Dgi()
if dgi == '0098':
pse_dgi.name = '0101'
pse_dgi.add_tag_value(pse_dgi.name,data[4:])
elif dgi == '0099':
pse_dgi.name = '9102'
pse_dgi.add_tag_value(pse_dgi.name,data)
return pse_dgi
def parse_pse_and_ppse(xml, pse_dgi_list, ppse_dgi_list, goldpac_dgi_list):
pse_dgi = Dgi()
pse_dgi.name = 'PSE'
ppse_dgi = Dgi()
ppse_dgi.name = 'PPSE'
for sddf_tag in pse_dgi_list:
tag, value = parse_pse_and_ppse_data(xml, sddf_tag, goldpac_dgi_list)
pse_dgi.add_tag_value(tag, value)
for sddf_tag in ppse_dgi_list:
tag, value = parse_pse_and_ppse_data(xml, sddf_tag, goldpac_dgi_list)
ppse_dgi.add_tag_value(tag, value)
return pse_dgi, ppse_dgi
def parse_store_data(self,
app_type,
dgi_name,
data,
session_key=None,
is_encrypted=False,
delete80_list=[]):
int_dgi_name = int(dgi_name, 16)
if is_encrypted and session_key:
data = des3_ecb_decrypt(session_key, data)
if dgi_name in delete80_list:
index = data.rfind('80')
if index != -1:
data = data[0:index]
#对于PSE和PPSE，不解析TLV格式
if app_type in ('PSE', 'PPSE'):
dgi = Dgi()
dgi.name = app_type
if data.startswith('70'):
data = data[4:] #去掉70模板
dgi.add_tag_value(dgi_name, data)
return dgi
else:
#规则如下:
#1. 小于0x0B00的记录数据需要解析TLV结构
#2. 如果DGI大于0B00,并且该数据可以解析成TLV,则分如下情况
# a. 如果是8000,9000,9102,9103等不需要分析TLV结构的，则不分析
# b. 如果DGI以A,B字母开头(万事达应用),不用做TLV分析
if int_dgi_name <= 0x0B00 \
or (dgi_name not in self.do_not_parse_tlv_list \
and utils.is_tlv(data)\
and not (dgi_name.startswith('A') or dgi_name.startswith('B')) ):
if utils.is_tlv(data):
tlvs = utils.parse_tlv(data)
return self._assemble_dgi(dgi_name, tlvs)
else:
dgi = Dgi()
dgi.name = dgi_name
dgi.add_tag_value(dgi_name, data)
return dgi
else:
dgi = Dgi()
dgi.name = dgi_name
if dgi_name.endswith('_2'):
dgi_name = dgi_name[:-2]
dgi.add_tag_value(dgi_name, data)
return dgi
def get_cps(cps_file):
'''
通过cps文件获取cps数据
'''
cps = Cps()
ini = IniParser(cps_file)
sections = ini.get_sections()
for section in sections:
if section == 'AID_LIST':
value = ini.get_value(section,section)
aid_list = value.split(';')
cps.pse_aid = aid_list[0]
cps.ppse_aid = aid_list[1]
cps.first_app_aid = aid_list[2]
cps.second_app_aid = aid_list[3]
elif section in ('DGI_LIST','DGI_LIST_2'):
continue
else:
dgi = Dgi()
dgi.name = section
options = ini.get_options(section)
for option in options:
value = ini.get_value(section,option)
dgi.add_tag_value(option,value)
cps.add_dgi(dgi)
return cps
def process_add_fixed_tag(self, dgi_name, tag, value, before_tag,
after_tag):
dgis = self.cps.get_all_dgis()
dgi_names = [dgi.name for dgi in dgis]
if dgi_name not in dgi_names:
new_dgi = Dgi()
new_dgi.name = dgi_name
new_dgi.add_tag_value(tag, value)
self.cps.add_dgi(new_dgi)
else:
for item in self.cps.dgi_list:
if item.name == dgi_name:
if tag in item.tag_value_dict:
old_value = item.get_value(tag)
new_value = old_value[len(tag) + 2:] + value
new_value = tag + utils.get_strlen(
new_value) + new_value
item.modify_value(tag, new_value)
else:
if before_tag is not '':
item.insert_before(before_tag, tag, value)
elif after_tag is not '':
item.insert_after(after_tag, tag, value)
else:
item.add_tag_value(tag, value)
return self.cps
def process_add_tag(self, src_dgi, src_tag, dst_dgi, dst_tag):
dst_tag_value = self._get_tag_value(dst_dgi, dst_tag)
dgi = Dgi()
dgi.name = src_dgi
dgi.add_tag_value(src_tag, dst_tag_value)
self.cps.add_dgi(dgi)
return self.cps
def process_data(data,data_type):
dgi = Dgi()
dgi.name = data_type
item_list = process_tlv(data)
for item in item_list:
dgi.add_tag_value(item[0],item[2])
return dgi
def parse_9000(xml, goldpac_dgi_list, is_second_app):
sddf_9000_ac = get_sddf_tag(xml, 'EMVDataName', 'Checksum Kac')
sddf_9000_mac = get_sddf_tag(xml, 'EMVDataName', 'Checksum Ksmi')
sddf_9000_enc = get_sddf_tag(xml, 'EMVDataName', 'Checksum Ksmc')
dgi = Dgi()
if is_second_app:
dgi.name = '9000_2'
else:
dgi.name = '9000'
data = get_goldpac_data(goldpac_dgi_list, sddf_9000_ac, is_second_app)[0:6]
data += get_goldpac_data(goldpac_dgi_list, sddf_9000_mac,
is_second_app)[0:6]
data += get_goldpac_data(goldpac_dgi_list, sddf_9000_enc,
is_second_app)[0:6]
dgi.add_tag_value(dgi.name, data)
return dgi
def parse_8000(xml, goldpac_dgi_list, is_second_app):
sddf_8000_ac = get_sddf_tag(xml, 'EMVDataName', 'Kac')
sddf_8000_mac = get_sddf_tag(xml, 'EMVDataName', 'Ksmi')
sddf_8000_enc = get_sddf_tag(xml, 'EMVDataName', 'Ksmc')
dgi = Dgi()
if is_second_app:
dgi.name = '8000_2'
else:
dgi.name = '8000'
data = get_goldpac_data(goldpac_dgi_list, sddf_8000_ac, is_second_app)
data += get_goldpac_data(goldpac_dgi_list, sddf_8000_mac, is_second_app)
data += get_goldpac_data(goldpac_dgi_list, sddf_8000_enc, is_second_app)
rule_file_handle = RuleXml(xml.file_name)
_, key = rule_file_handle.get_decrypted_attribute('8000') #顺带解密
data = algorithm.des3_ecb_decrypt(key, data)
dgi.add_tag_value(dgi.name, data)
return dgi
def _assemble_dgi(self, dgi_name, tlvs):
dgi = Dgi()
dgi.name = dgi_name
for tlv in tlvs:
if not tlv.is_template:
value = utils.assemble_tlv(tlv.tag, tlv.value) #组装为TLV结构
dgi.add_tag_value(tlv.tag, value)
return dgi
def process_dp(dp_file, rule_file):
fh = FileHandle(dp_file, 'rb+')
fh.read(fh.current_offset, 8596) #reserved
dgi_list = get_dgi_list(fh)
file_size = fh.file_size
cps_list = []
while fh.current_offset < file_size:
card_seq = fh.read_int64_reverse(fh.current_offset)
card_data_total_len = fh.read_int_reverse(fh.current_offset)
cps = Cps() #存储单个卡片数据
cps.dp_file_path = dp_file
pse_and_ppse_dgi = [
'Store_PSE_1', 'Store_PSE_2', 'Store_PPSE', 'DGIF001'
]
for dgi_name in dgi_list:
dgi = Dgi() #存储单个DGI数据
if dgi_name in pse_and_ppse_dgi:
if dgi_name == 'Store_PSE_1':
dgi = process_pse_and_ppse(fh, dgi_name, True)
else:
dgi = process_pse_and_ppse(fh, dgi_name, False)
cps.add_dgi(dgi)
continue
dgi_mark = fh.read_binary(fh.current_offset, 1) #DGI标识
if dgi_mark != '86':
return
next_len = get_next_len(fh)
dgi_seq = fh.read_binary(fh.current_offset, 2) #读取DGI序号
dgi.name = dgi_seq
next_len = get_next_len(fh)
n_dgi_seq = utils.hex_str_to_int(dgi_seq)
if n_dgi_seq <= 0x0B00: #认为是记录
template70 = fh.read_binary(fh.current_offset, 1)
if template70 != '70':
return
next_len = get_next_len(fh)
dgi_data = fh.read_binary(fh.current_offset, next_len)
if n_dgi_seq <= 0x0B00 or (dgi_seq not in do_not_parse_tlv_list
and utils.is_tlv(dgi_data)):
tlvs = utils.parse_tlv(dgi_data)
if len(tlvs) > 0 and tlvs[0].is_template is True:
value = utils.assemble_tlv(tlvs[0].tag, tlvs[0].value)
dgi.add_tag_value(dgi_seq, value)
else:
for tlv in tlvs:
value = utils.assemble_tlv(tlv.tag, tlv.value)
dgi.add_tag_value(tlv.tag, value)
else:
dgi.add_tag_value(dgi_seq, dgi_data)
cps.add_dgi(dgi)
if rule_file is not None:
process_rule(rule_file, cps)
process_rule_A001(rule_file, cps)
process_rule_eps(rule_file, cps)
cps_list.append(cps)
return cps_list
def _process_pse_and_ppse(dgi_name, data):
dgi = Dgi()
if dgi_name == 'Store_PSE_1':
dgi.name = 'PSE'
data = utils.remove_dgi(data, '0101')
data = utils.remove_template70(data)
dgi.add_tag_value('0101', data)
elif dgi_name == 'Store_PSE_2':
dgi.name = 'PSE'
data = utils.remove_dgi(data, '9102')
value = utils.assemble_tlv('A5', '880101' + data)
dgi.add_tag_value('9102', value)
elif dgi_name == 'Store_PPSE':
dgi.name = 'PPSE'
# value = dgi.assemble_tlv('BF0C',data)
# value = dgi.assemble_tlv('A5',value)
data = utils.remove_dgi(data, '9102')
dgi.add_tag_value('9102', data)
return dgi
def process_pse_and_ppse(dgi_name, dgi_data, dgi_node):
dgi = Dgi()
dgi.name = dgi_node
if dgi_name == '9102':
index = dgi_data.find('A5')
dgi_data = dgi_data[index:len(dgi_data)]
dgi.add_tag_value(dgi_name, dgi_data)
else:
dgi.add_tag_value(dgi_name, dgi_data)
return dgi
def parse_A006(xml, goldpac_dgi_list):
sddf_A006 = get_sddf_tag(xml, 'EMVDataName', 'Kidn')
dgi = Dgi()
dgi.name = 'A006'
data = get_goldpac_data(goldpac_dgi_list, sddf_A006, False)
rule_file_handle = RuleXml(xml.file_name)
_, key = rule_file_handle.get_decrypted_attribute('A006') #顺带解密
data = algorithm.des3_ecb_decrypt(key, data)
dgi.add_tag_value(dgi.name, data)
return dgi
def parse_sddf_data(xml, sddf_tag, goldpac_dgi_list=[]):
sddf_data = ''
for item in goldpac_dgi_list:
if item.goldpac_dgi == sddf_tag:
sddf_data = item.data
dgi = Dgi()
node_dgi, value_format = get_tag_link_attribute(xml, sddf_tag)
if node_dgi == '' or value_format == '':
return None
need_remove_template = is_need_delete_template(node_dgi)
global _aid_list_info
is_second_app = False
for _, aid_info in _aid_list_info.items():
if sddf_tag[4] == aid_info[0]:
is_second_app = aid_info[1]
break
if is_second_app: #说明包含双应用
dgi.name = node_dgi + '_2'
else:
dgi.name = node_dgi
if value_format == 'TLV':
data = utils.remove_dgi(sddf_data, node_dgi)
if need_remove_template:
data = utils.remove_template70(data)
if utils.str_to_int(node_dgi) > 0xA000 or not utils.is_tlv(data):
dgi.add_tag_value(dgi.name, data)
else:
tlvs = utils.parse_tlv(data)
if len(tlvs) > 0 and tlvs[0].is_template is True:
value = utils.assemble_tlv(tlvs[0].tag, tlvs[0].value)
dgi.add_tag_value(dgi.name, value)
else:
for tlv in tlvs:
if tlv.len > 0x7F:
value = tlv.tag + '81' + utils.int_to_hex_str(
tlv.len) + tlv.value
else:
value = tlv.tag + utils.int_to_hex_str(
tlv.len) + tlv.value
dgi.add_tag_value(tlv.tag, value)
elif value_format == 'V':
dgi.add_tag_value(dgi.name, sddf_data)
return dgi
def process_dp(dp_file, rule_file):
cps_list = []
fh = FileHandle(dp_file, 'rb+')
dp_flag = fh.read_binary(fh.current_offset, 7)
data_len = utils.hex_str_to_int(fh.read_binary(fh.current_offset, 8))
dgi_count = fh.read_int64(fh.current_offset)
dgi_list = []
for i in range(dgi_count):
dgi_name_len = fh.read_int(fh.current_offset)
dgi_name = fh.read_str(fh.current_offset, dgi_name_len)
dgi_list.append(dgi_name)
card_seq = fh.read_binary(fh.current_offset, 4)
card_data_len = fh.read_int(fh.current_offset)
while data_len > fh.current_offset:
cps = Cps()
cps.dp_file_path = dp_file
for item in dgi_list:
dgi = Dgi()
start_flag = fh.read_binary(fh.current_offset, 1)
if start_flag != '86':
return cps_list
dgi_len = get_len(fh)
dgi_name = fh.read_binary(fh.current_offset, 2)
dgi.name = dgi_name
dgi_data_len = utils.hex_str_to_int(
fh.read_binary(fh.current_offset, 1))
n_dgi_seq = utils.hex_str_to_int(dgi_name)
if n_dgi_seq <= 0x0B00: #认为是记录
template70 = fh.read_binary(fh.current_offset, 1)
if template70 != '70':
return cps_list
dgi_data_len = get_len(fh)
dgi_data = fh.read_binary(fh.current_offset, dgi_data_len)
if item[0:3] == 'PSE':
dgi = process_pse_and_ppse(dgi_name, dgi_data, 'PSE')
elif item[0:4] == 'PPSE':
dgi = process_pse_and_ppse(dgi_name, dgi_data, 'PPSE')
else:
if n_dgi_seq <= 0x0B00 or (utils.is_rsa(dgi_name) is False
and utils.is_tlv(dgi_data)):
tlvs = utils.parse_tlv(dgi_data)
if len(tlvs) > 0 and tlvs[0].is_template is True:
value = utils.assemble_tlv(tlvs[0].tag, tlvs[0].value)
dgi.add_tag_value(dgi_name, value)
else:
for tlv in tlvs:
value = utils.assemble_tlv(tlv.tag, tlv.value)
dgi.add_tag_value(tlv.tag, value)
else:
dgi.add_tag_value(dgi_name, dgi_data)
cps.add_dgi(dgi)
if rule_file is not None:
process_rule(rule_file, cps)
cps_list.append(cps)
return cps_list
def process_jetco_special_dgi(xml, goldpac_dgi_list, cps):
rule_file_handle = RuleXml(xml.file_name)
add_tag_nodes = xml.get_nodes(xml.root_element, 'AddTag')
for node in add_tag_nodes:
attrs = xml.get_attributes(node)
dgi = Dgi()
dgi.name = attrs['srcDGI']
if 'srcTag' not in attrs:
attrs['srcTag'] = attrs['dstTag']
data = ''
is_second_app = False
if '_2' in dgi.name:
is_second_app = True
# 对DF20,DF27做特殊处理
if attrs['dstDGI'] == 'DF20':
_, sddf_tag_DF18, _ = rule_file_handle.get_tag_link_attribute(
'EMVTag', 'DF18')
_, sddf_tag_DF19, _ = rule_file_handle.get_tag_link_attribute(
'EMVTag', 'DF19')
data_DF18 = get_goldpac_data(goldpac_dgi_list, sddf_tag_DF18,
is_second_app)
data_DF19 = get_goldpac_data(goldpac_dgi_list, sddf_tag_DF19,
is_second_app)
data = data_DF18 + data_DF19
data = data[0:data.find('20')]
data = utils.bcd_to_str(data)
if len(data) // 2 > 0x7F:
data = attrs['dstDGI'] + '81' + utils.get_strlen(data) + data
else:
data = attrs['dstDGI'] + utils.get_strlen(data) + data
elif attrs['dstDGI'] == 'DF27':
_, sddf_tag_DF16, _ = rule_file_handle.get_tag_link_attribute(
'EMVTag', 'DF16')
_, sddf_tag_DF17, _ = rule_file_handle.get_tag_link_attribute(
'EMVTag', 'DF17')
data_DF16 = get_goldpac_data(goldpac_dgi_list, sddf_tag_DF16,
is_second_app)
data_DF17 = get_goldpac_data(goldpac_dgi_list, sddf_tag_DF17,
is_second_app)
data = data_DF16 + data_DF17
data = data[0:data.find('20')]
data = utils.bcd_to_str(data)
if len(data) // 2 > 0x7F:
data = attrs['dstDGI'] + '81' + utils.get_strlen(data) + data
else:
data = attrs['dstDGI'] + utils.get_strlen(data) + data
else:
_, sddf_tag, _ = rule_file_handle.get_tag_link_attribute(
'EMVTag', attrs['dstTag'])
data = get_goldpac_data(goldpac_dgi_list, sddf_tag, is_second_app)
dgi.add_tag_value(attrs['srcTag'], data)
cps.add_dgi(dgi)
return cps
def process_card_data(fh,rule_file):
cps = Cps()
flag = fh.read_str(fh.current_offset,6)
if flag != '000EMV':
return False,cps
card_data_len = fh.read_int64(fh.current_offset)
app_count = utils.hex_str_to_int(fh.read_binary(fh.current_offset,1))
for app in range(app_count):
aid_len = utils.hex_str_to_int(fh.read_binary(fh.current_offset,1))
aid = fh.read_binary(fh.current_offset,aid_len)
app_data_len = fh.read_int64(fh.current_offset)
dgi_list, encrypt_dgi_list = get_dgi_list(fh)
Log.info('encrypt dgi list :', encrypt_dgi_list)
for item in dgi_list:
card_dgi = Dgi()
dgi = fh.read_binary(fh.current_offset,2)
dgi_len = utils.hex_str_to_int(fh.read_binary(fh.current_offset,1))
dgi_data = fh.read_binary(fh.current_offset,dgi_len)
n_dgi = utils.hex_str_to_int(dgi)
card_dgi.name = dgi
if dgi == '0098' or dgi == '0099':
dgi = process_pse(dgi,dgi_data)
elif dgi == '0100':
dgi = process_ppse(dgi,dgi_data)
else:
if n_dgi < 0x0B01:
if dgi_data[0:2] != '70':
return False,cps
if dgi_data[2:4] == '81':
dgi_data = dgi_data[6:]
else:
dgi_data = dgi_data[4:]
if utils.is_rsa(dgi) is False and utils.is_tlv(dgi_data):
tlvs = utils.parse_tlv(dgi_data)
if len(tlvs) > 0 and tlvs[0].is_template is True:
value = utils.assemble_tlv(tlvs[0].tag,tlvs[0].value)
card_dgi.add_tag_value(dgi,value)
else:
for tlv in tlvs:
value = process_tag_decrypt(rule_file,tlv.tag,tlv.value)
value = utils.assemble_tlv(tlv.tag,value)
card_dgi.add_tag_value(tlv.tag,value)
else:
card_dgi.add_tag_value(dgi,dgi_data)
cps.add_dgi(card_dgi)
return True,cps
def process_merge_tag(self, src_dgi, src_tag, dst_dgi, dst_tag):
dst_item = self.cps.get_dgi(dst_dgi)
dst_tag_value = dst_item.get_value(dst_tag)
src_item = self.cps.get_dgi(src_dgi)
if src_item is None:
dgi = Dgi()
dgi.name = src_dgi
dgi.add_tag_value(src_tag, dst_tag_value)
self.cps.add_dgi(dgi)
return self.cps
else:
for item in self.cps.dgi_list:
if item.name == src_dgi:
value = item.get_value(src_tag)
value += dst_tag_value
item.modify_value(src_tag, value)
return self.cps
return self.cps
def process_add_kcv(self, src_dgi, dst_dgi, key_type):
item = self.cps.get_dgi(dst_dgi)
key = item.get_value(item.name)
key_len = len(key)
kcv = ''
if key_type == 'DES':
for i in range(0, key_len, 32):
part_key = key[i:i + 32]
kcv += algorithm.des3_ecb_encrypt(part_key,
'0000000000000000')[0:6]
elif key_type == 'SM':
for i in range(0, key_len, 32):
part_key = key[i:i + 32]
kcv += algorithm.sm4_ecb_encrypt(
part_key, '00000000000000000000000000000000')[0:6]
dgi = Dgi()
dgi.name = src_dgi
dgi.add_tag_value(dgi.name, kcv)
self.cps.add_dgi(dgi)
return self.cps
def process_mag_data(fh,rule_file_name):
rule_file = RuleXml(rule_file_name)
mag_node = rule_file.get_first_node(rule_file.root_element,'Magstrip')
mag_flag = fh.read_str(fh.current_offset,6)
if mag_flag != '000MAG':
return False
mag_data_len = fh.read_int64(fh.current_offset)
track_flag_list = []
track_flag_list.append(fh.read(fh.current_offset,1))
track_flag_list.append(fh.read(fh.current_offset + 1,1))
track_flag_list.append(fh.read(fh.current_offset + 1,1))
mag_data = fh.read_binary(fh.current_offset,mag_data_len - 5)
mag_data_list = [x for x in mag_data.split('7C') if len(x) > 0]
Log.info('decrypt mag data: ',end='')
Log.info(mag_data_list)
dgi = Dgi()
dgi.name = 'Magstrip'
if mag_node is not None:
mag_key = rule_file.get_attribute(mag_node,'key')
decrypt_mag_list = []
for data in mag_data_list:
data = utils.bcd_to_str(data)
data = algorithm.des3_ecb_decrypt(mag_key,data)
data = utils.bcd_to_str(data)
data_len = int(data[0:4])
data = data[4:data_len + 4].rstrip()
decrypt_mag_list.append(data)
pos = 1
for mag in decrypt_mag_list:
for index in range(pos,4):
pos += 1
option = 'mag' + str(pos)
if track_flag_list[index - 1] == '0':
dgi.add_tag_value(option,'')
continue
dgi.add_tag_value(option,mag)
break
Log.info('decrypt mag data: ',end='')
Log.info(decrypt_mag_list)
return dgi
def split_rsa(xml, goldpac_dgi_list, is_second_app):
rule_file_handle = RuleXml(xml.file_name)
_, key = rule_file_handle.get_decrypted_attribute('RSA')
sddf_tag = ''
_, sddf_tag, _ = rule_file_handle.get_tag_link_attribute(
'EMVDataName', 'Icc_KeyPair')
if is_second_app:
sddf_tag = sddf_tag[0:4] + get_second_app_index() + sddf_tag[5:8]
else:
sddf_tag = sddf_tag[0:4] + get_first_app_index() + sddf_tag[5:8]
encrypted_data = get_goldpac_data(goldpac_dgi_list, sddf_tag,
is_second_app)
if encrypted_data is None:
Log.error('无法获取RSA数据[tag' + sddf_tag + ']缺少数据')
decrypted_data = algorithm.des3_ecb_decrypt(key, encrypted_data)
if len(decrypted_data) <= 2 or decrypted_data[0:2] != '30':
Log.error('RSA解密失败')
return None
decrypted_data = decrypted_data[2:]
_, decrypted_data = get_rsa_dgi_len(decrypted_data)
dgi_list = []
for i in range(9):
decrypted_data = decrypted_data[2:] #remove flag '02'
dgi_len, decrypted_data = get_rsa_dgi_len(decrypted_data)
dgi_data = get_rsa_dgi_value(decrypted_data, dgi_len)
decrypted_data = decrypted_data[dgi_len:]
dgi = Dgi()
if is_second_app:
dgi.name = '_2'
if i == 4:
dgi.name = '8205' + dgi.name
elif i == 5:
dgi.name = '8204' + dgi.name
elif i == 6:
dgi.name = '8203' + dgi.name
elif i == 7:
dgi.name = '8202' + dgi.name
elif i == 8:
dgi.name = '8201' + dgi.name
else:
continue
dgi.add_tag_value(dgi.name[0:4], dgi_data)
dgi_list.append(dgi)
Log.info(dgi.name[0:4] + '=' + dgi_data)
return dgi_list
def process_assemble_dgi(self, src_dgi, src_tag, format_str):
data = ""
tag_list = format_str.split(',')
for tag in tag_list[::-1]:
if '.' not in tag: #说明是模板
data = tag + utils.get_strlen(data) + data
else:
dst_dgi = tag.split('.')[0]
dst_tag = tag.split('.')[1]
if dst_dgi == '':
data = dst_tag + data
elif dst_dgi[len(dst_dgi) - 1] == 'v':
dst_dgi = dst_dgi[0:len(dst_dgi) - 1]
value = self.cps.get_tag_value(dst_dgi, dst_tag)
if not value:
print('dgi %s tag %s 不存在' % (dst_dgi, dst_tag))
data = value + data
else:
value = ''
if dst_dgi in ('9102', '9103'): #对于9103,9102需要特殊处理
tlvs = utils.parse_tlv(
self.cps.get_tag_value(dst_dgi, dst_dgi))
for tlv in tlvs:
if tlv.tag == dst_tag:
value = tlv.value
break
else:
value = self.cps.get_tag_value(dst_dgi, dst_tag)
if not value:
print('dgi %s tag %s 不存在' % (dst_dgi, dst_tag))
tag_len = utils.get_strlen(value)
data = dst_tag + tag_len + value + data
dgi = Dgi()
dgi.name = src_dgi
dgi.add_tag_value(src_tag, data)
self.cps.add_dgi(dgi)
return self.cps
def process_data(app_flag, card_data):
dgi = Dgi()
dgi.name = app_flag
data = card_data.split('|')
dgi.add_tag_value(data[0], data[2])
return dgi
def process_dp(dp_file, rule_file, is_mc_app=False):
global _is_mc_app
_is_mc_app = is_mc_app
cps_list = []
fh = FileHandle(dp_file, 'rb+')
dp_header = fh.read_binary(fh.current_offset, 26)
dgi_count = fh.read_int(fh.current_offset)
goldpac_dgi_list = []
for i in range(dgi_count): #获取sddf dgi个数及所包含数据的长度
item = GoldpacDgi()
item.goldpac_dgi = fh.read_binary(fh.current_offset, 4)
item.data_len = fh.read_int(fh.current_offset)
goldpac_dgi_list.append(item)
for item in goldpac_dgi_list: #获取sddf dgi所包含的数据
item.data = fh.read_binary(fh.current_offset, item.data_len)
Log.info(item.goldpac_dgi + ' = ' + item.data)
xml = XmlParser(rule_file)
get_aid_list_info(xml) #获取AID应用列表信息
sddf_dgi_list = []
sddf_element_nodes = xml.get_nodes(xml.root_element, 'SDDFElement')
constans_second_app = has_second_app()
for node in sddf_element_nodes:
sddf_tag = xml.get_attribute(node, 'SDDFTag')
sddf_value = xml.get_attribute(node, 'Value')
sddf_elements = parse_sddf_element(sddf_tag, sddf_value)
sddf_dgi_list.extend(sddf_elements)
cps = Cps()
cps.dp_file_path = dp_file
pse_dgi_list, ppse_dgi_list = get_pse_and_ppse_dgi_list(sddf_dgi_list)
for sddf_tag in sddf_dgi_list:
if sddf_tag not in pse_dgi_list and sddf_tag not in ppse_dgi_list: #解析TagLink节点，并生成cps数据
cps_dgi = parse_sddf_data(xml, sddf_tag, goldpac_dgi_list)
if cps_dgi != None:
cps.add_dgi(cps_dgi)
dgi_8000 = parse_8000(xml, goldpac_dgi_list, False)
dgi_9000 = parse_9000(xml, goldpac_dgi_list, False)
cps.add_dgi(dgi_8000)
cps.add_dgi(dgi_9000)
if is_mc_app:
dgi_A006 = parse_A006(xml, goldpac_dgi_list)
cps.add_dgi(dgi_A006)
dgi_A016 = Dgi()
dgi_A016.name = 'A016'
dgi_A016.add_tag_value('A016', dgi_A006.get_value('A006'))
dgi_8001 = Dgi()
dgi_8001.name = '8001'
dgi_8001.add_tag_value('8001', dgi_8000.get_value('8000'))
dgi_9001 = Dgi()
dgi_9001.name = '9001'
dgi_9001.add_tag_value('9001', dgi_9000.get_value('9000'))
cps.add_dgi(dgi_8001)
cps.add_dgi(dgi_9001)
cps.add_dgi(dgi_A016)
rsa_dgi_list = split_rsa(xml, goldpac_dgi_list, False)
for rsa_dgi in rsa_dgi_list:
cps.add_dgi(rsa_dgi)
pse_dgi, ppse_dgi = parse_pse_and_ppse(xml, pse_dgi_list, ppse_dgi_list,
goldpac_dgi_list)
if pse_dgi.is_empty() is False:
cps.add_dgi(pse_dgi)
if ppse_dgi.is_empty() is False:
cps.add_dgi(ppse_dgi)
if constans_second_app:
cps = process_jetco_special_dgi(xml, goldpac_dgi_list, cps)
cps.add_dgi(parse_8000(xml, goldpac_dgi_list, True))
cps.add_dgi(parse_9000(xml, goldpac_dgi_list, True))
rsa_dgi_list = split_rsa(xml, goldpac_dgi_list, True)
for rsa_dgi in rsa_dgi_list:
cps.add_dgi(rsa_dgi)
cps_list.append(cps)
return cps_list
def process_ppse(dgi,data):
ppse_dgi = Dgi()
if dgi == '0100':
ppse_dgi.name = '9102'
ppse_dgi.add_tag_value(ppse_dgi.name,data)
return ppse_dgi