ea6d4148e9
Add TDX attestation for LLM Finetuning in TDX CoCo --------- Co-authored-by: Heyang Sun <60865256+Uxito-Ada@users.noreply.github.com>
88 lines
No EOL
3.2 KiB
Python
88 lines
No EOL
3.2 KiB
Python
#
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# Copyright 2016 The BigDL Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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import ctypes
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import base64
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import os
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def generate_tdx_quote(user_report_data):
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# Define the uuid data structure
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TDX_UUID_SIZE = 16
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class TdxUuid(ctypes.Structure):
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_fields_ = [("d", ctypes.c_uint8 * TDX_UUID_SIZE)]
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# Define the report data structure
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TDX_REPORT_DATA_SIZE = 64
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class TdxReportData(ctypes.Structure):
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_fields_ = [("d", ctypes.c_uint8 * TDX_REPORT_DATA_SIZE)]
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# Define the report structure
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TDX_REPORT_SIZE = 1024
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class TdxReport(ctypes.Structure):
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_fields_ = [("d", ctypes.c_uint8 * TDX_REPORT_SIZE)]
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# Load the library
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tdx_attest = ctypes.cdll.LoadLibrary("/usr/lib/x86_64-linux-gnu/libtdx_attest.so.1")
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# Set the argument and return types for the function
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tdx_attest.tdx_att_get_report.argtypes = [ctypes.POINTER(TdxReportData), ctypes.POINTER(TdxReport)]
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tdx_attest.tdx_att_get_report.restype = ctypes.c_uint16
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tdx_attest.tdx_att_get_quote.argtypes = [ctypes.POINTER(TdxReportData), ctypes.POINTER(TdxUuid), ctypes.c_uint32, ctypes.POINTER(TdxUuid), ctypes.POINTER(ctypes.POINTER(ctypes.c_uint8)), ctypes.POINTER(ctypes.c_uint32), ctypes.c_uint32]
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tdx_attest.tdx_att_get_quote.restype = ctypes.c_uint16
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# Call the function and check the return code
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byte_array_data = bytearray(user_report_data.ljust(64)[:64], "utf-8").replace(b' ', b'\x00')
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report_data = TdxReportData()
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report_data.d = (ctypes.c_uint8 * 64).from_buffer(byte_array_data)
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report = TdxReport()
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result = tdx_attest.tdx_att_get_report(ctypes.byref(report_data), ctypes.byref(report))
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if result != 0:
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print("Error: " + hex(result))
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att_key_id_list = None
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list_size = 0
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att_key_id = TdxUuid()
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p_quote = ctypes.POINTER(ctypes.c_uint8)()
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quote_size = ctypes.c_uint32()
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flags = 0
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result = tdx_attest.tdx_att_get_quote(ctypes.byref(report_data), att_key_id_list, list_size, ctypes.byref(att_key_id), ctypes.byref(p_quote), ctypes.byref(quote_size), flags)
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if result != 0:
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print("Error: " + hex(result))
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else:
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quote = ctypes.string_at(p_quote, quote_size.value)
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return quote
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def generate_gramine_quote(user_report_data):
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USER_REPORT_PATH = "/dev/attestation/user_report_data"
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QUOTE_PATH = "/dev/attestation/quote"
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if not os.path.isfile(USER_REPORT_PATH):
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print(f"File {USER_REPORT_PATH} not found.")
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return ""
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if not os.path.isfile(QUOTE_PATH):
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print(f"File {QUOTE_PATH} not found.")
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return ""
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with open(USER_REPORT_PATH, 'w') as out:
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out.write(user_report_data)
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with open(QUOTE_PATH, "rb") as f:
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quote = f.read()
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return quote
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if __name__ == "__main__":
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print(generate_tdx_quote("ppml")) |