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_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_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_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.dgi = 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 _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 _parse_tlv(dgi_name, data):
dgi = Dgi()
data = utils.remove_dgi(data, dgi_name)
int_dgi = utils.str_to_int(dgi_name)
if int_dgi < 0x0B01:
if data[0:2] != '70':
Log.error('数据有误，小于0B01的DGI应包含70模板')
return None
data = utils.remove_template70(data)
if not utils.is_rsa(dgi_name) and utils.is_tlv(data):
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:
value = utils.assemble_tlv(tlv.tag, tlv.value)
dgi.add_tag_value(tlv.tag, value)
else:
dgi.add_tag_value(dgi_name, data)
return dgi
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 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