def export(self, dbg_info: DebugInfo = DebugInfo.disabled()) -> bytes:
"""Export to binary form (serialization).
:param dbg_info: debug information about exported data
:return: binary representation of the command
"""
hdr_data = self._header.export()
dbg_info.append_binary_data('header', hdr_data)
return hdr_data
def export(self, dbg_info: DebugInfo = DebugInfo.disabled()) -> bytes:
"""Return command in binary form (serialization)."""
# export cmd
data = super().export(dbg_info)
# export additional data
if len(self._pattern) > 4:
data += bytes(self._pattern[4:])
dbg_info.append_binary_data('pattern', self._pattern[4:])
data = SecBootBlckSize.align_block_fill_random(data)
return data
def _log_test_output(dbg_info: DebugInfo) -> None:
"""Uses all methods of DebugInfo class to append data in different format
:param dbg_info: instance used for logging
"""
dbg_info.append_section("SECTION")
dbg_info.append("-test-line-")
dbg_info.append_binary_section("bin", b"\x00\x11\x22\xFF")
dbg_info.append_binary_data("data", b"\x00\x11\x22")
dbg_info.append_hex_data(b"\x00\x11\x22\x00\x11\x22\x00\x11\x22\x00\x11\x22")
def export(self, dbg_info: DebugInfo = DebugInfo.disabled()) -> bytes:
"""Export to binary form (serialization).
:param dbg_info: debug information about exported data
:return: binary representation of the command
"""
raw_data = super().export(dbg_info=dbg_info)
raw_data += pack("4B", 0x00, self.hash_algorithm, self.engine, self.engine_cfg)
dbg_info.append_binary_data('data', raw_data)
return raw_data
def _log_test_output(dbg_info: DebugInfo) -> None:
"""Uses all methods of DebugInfo class to append data in different format
:param dbg_info: instance used for logging
"""
dbg_info.append_section('SECTION')
dbg_info.append('-test-line-')
dbg_info.append_binary_section('bin', b'\x00\x11\x22\xFF')
dbg_info.append_binary_data('data', b'\x00\x11\x22')
dbg_info.append_hex_data(
b'\x00\x11\x22\x00\x11\x22\x00\x11\x22\x00\x11\x22')
def export(self, dbg_info: DebugInfo = DebugInfo.disabled()) -> bytes:
"""Return binary representation of the class (serialization)."""
self.update()
dbg_info.append_section('Section')
data = self._header.export()
dbg_info.append_binary_data('Section-header', data)
dbg_info.append_section('Commands')
for cmd in self._commands:
cmd_data = cmd.export(dbg_info)
data += cmd_data
return data
def export(self, dbg_info: DebugInfo = DebugInfo.disabled()) -> bytes:
"""Export to binary form (serialization).
:param dbg_info: debug information about exported data
:return: binary representation of the command
"""
raw_data = super().export(dbg_info=dbg_info)
data = pack(">4BL", self.certificate_format, self.hash_algorithm, self.source_index, self.target_index,
self.cmd_data_location)
raw_data += data
dbg_info.append_binary_data('data', data)
return raw_data
def export(self, dbg_info: DebugInfo = DebugInfo.disabled()) -> bytes:
"""Export to binary form (serialization).
:param dbg_info: debug information about exported data
:return: binary representation of the command
"""
assert self.size == CmdHeader.SIZE + 4
raw_data = super().export(dbg_info=dbg_info)
data = pack(">L", self.features)
dbg_info.append_binary_data('data', data)
raw_data += data
return raw_data
def export(self, dbg_info: DebugInfo = DebugInfo.disabled()) -> bytes:
"""Export instance into binary form (serialization).
:param dbg_info: optional instance providing debug info about exported content
:return: binary form
"""
self._validate_data()
self._header.length = self.size
raw_data = self._header.export()
dbg_info.append_binary_data("header", raw_data)
raw_data += pack(">4B", 0, self.nonce_len, 0, self.mac_len)
dbg_info.append("nonce=" + self.nonce.hex())
dbg_info.append("mac=" + self.mac.hex())
raw_data += self.data
return raw_data
def export(self, dbg_info: DebugInfo = DebugInfo.disabled()) -> bytes:
"""Export to binary form (serialization).
:param dbg_info: debug information about exported data
:return: binary representation of the command
"""
self._header.length = self.size
raw_data = super().export(dbg_info=dbg_info)
data = pack(">4BL", self.key_index, self.sig_format, self.engine, self.engine_cfg, self.location)
dbg_info.append_binary_data('data', data)
raw_data += data
for blk in self._blocks:
blk_data = pack(">2L", blk[0], blk[1])
dbg_info.append_binary_data('block', blk_data)
raw_data += blk_data
return raw_data
def export(
self,
header_padding8: Optional[bytes] = None,
auth_padding: Optional[bytes] = None,
dbg_info: DebugInfo = DebugInfo.disabled(),
) -> bytes:
"""Serialization to binary form.
:param header_padding8: optional header padding, 8-bytes; recommended to use None to apply random value
:param auth_padding: optional padding used after authentication; recommended to use None to apply random value
:param dbg_info: instance allowing to debug generated output
:return: serialize the instance into binary data
:raises SPSDKError: Invalid section data
:raises SPSDKError: Invalid padding length
"""
self.update()
self.validate()
dbg_info.append_section("SB-FILE-1.x")
data = self._header.export(padding8=header_padding8, dbg_info=dbg_info)
# header table
dbg_info.append_section("Sections-Header-Table")
for sect_hdr in self._sections_hdr_table:
sect_hdr_data = sect_hdr.export()
dbg_info.append_binary_data("Section-Header-Item", sect_hdr_data)
data += sect_hdr_data
# sections
dbg_info.append_section("Sections")
for sect in self._sections:
sect_data = sect.export(dbg_info)
if len(sect_data) != sect.size:
raise SPSDKError("Invalid section data")
data += sect_data
# authentication: SHA1
auth_code = crypto_backend().hash(data, "sha1")
dbg_info.append_binary_section("SHA1", auth_code)
data += auth_code
# padding
padding_len = align(len(auth_code),
SecBootBlckSize.BLOCK_SIZE) - len(auth_code)
if auth_padding is None:
auth_padding = crypto_backend().random_bytes(padding_len)
if padding_len != len(auth_padding):
raise SPSDKError("Invalid padding length")
data += auth_padding
dbg_info.append_binary_section("padding", auth_padding)
return data
def export(
self,
header_padding8: Optional[bytes] = None,
auth_padding: Optional[bytes] = None,
dbg_info: DebugInfo = DebugInfo.disabled()
) -> bytes:
"""Serialization to binary form.
:param header_padding8: optional header padding, 8-bytes; recommended to use None to apply random value
:param auth_padding: optional padding used after authentication; recommended to use None to apply random value
:param dbg_info: instance allowing to debug generated output
:return: serialize the instance into binary data
"""
self.update()
self.validate()
dbg_info.append_section('SB-FILE-1.x')
data = self._header.export(padding8=header_padding8, dbg_info=dbg_info)
# header table
dbg_info.append_section('Sections-Header-Table')
for sect_hdr in self._sections_hdr_table:
sect_hdr_data = sect_hdr.export()
dbg_info.append_binary_data('Section-Header-Item', sect_hdr_data)
data += sect_hdr_data
# sections
dbg_info.append_section('Sections')
for sect in self._sections:
sect_data = sect.export(dbg_info)
assert len(sect_data) == sect.size
data += sect_data
# authentication: SHA1
auth_code = crypto_backend().hash(data, 'sha1')
dbg_info.append_binary_section('SHA1', auth_code)
data += auth_code
# padding
padding_len = align(len(auth_code),
SecBootBlckSize.BLOCK_SIZE) - len(auth_code)
if auth_padding is None:
auth_padding = crypto_backend().random_bytes(padding_len)
assert padding_len == len(auth_padding)
data += auth_padding
dbg_info.append_binary_section('padding', auth_padding)
return data
def export(self, dbg_info: DebugInfo = DebugInfo.disabled()) -> bytes:
"""Return object serialized into bytes."""
dbg_info.append_section("Command:" + EnumCmdTag.name(self.header.tag))
cmd_data = self._header.export() # default implementation
dbg_info.append_binary_data("cmd-header", cmd_data)
return cmd_data
def test_debug_info_invalid():
dbg_info = DebugInfo()
with pytest.raises(SPSDKError, match="Incorrect data length"):
dbg_info.append_binary_data("data", bytes(20))
