mirror of
https://github.com/acidanthera/audk.git
synced 2025-11-04 05:25:45 +01:00
a3607b263b
Update Rsa2048Sha256Sign Tool to support the case that OPENSSL_PATH has space characters. Cc: Liming Gao <liming.gao@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Yonghong Zhu <yonghong.zhu@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com>
239 lines
9.2 KiB
Python
239 lines
9.2 KiB
Python
## @file
|
|
# This tool encodes and decodes GUIDed FFS sections or FMP capsule for a GUID type of
|
|
# EFI_CERT_TYPE_RSA2048_SHA256_GUID defined in the UEFI 2.4 Specification as
|
|
# {0xa7717414, 0xc616, 0x4977, {0x94, 0x20, 0x84, 0x47, 0x12, 0xa7, 0x35, 0xbf}}
|
|
# This tool has been tested with OpenSSL 1.0.1e 11 Feb 2013
|
|
#
|
|
# Copyright (c) 2013 - 2017, Intel Corporation. All rights reserved.<BR>
|
|
# This program and the accompanying materials
|
|
# are licensed and made available under the terms and conditions of the BSD License
|
|
# which accompanies this distribution. The full text of the license may be found at
|
|
# http://opensource.org/licenses/bsd-license.php
|
|
#
|
|
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
#
|
|
|
|
'''
|
|
Rsa2048Sha256Sign
|
|
'''
|
|
|
|
import os
|
|
import sys
|
|
import argparse
|
|
import subprocess
|
|
import uuid
|
|
import struct
|
|
import collections
|
|
from Common.BuildVersion import gBUILD_VERSION
|
|
|
|
#
|
|
# Globals for help information
|
|
#
|
|
__prog__ = 'Rsa2048Sha256Sign'
|
|
__version__ = '%s Version %s' % (__prog__, '0.9 ' + gBUILD_VERSION)
|
|
__copyright__ = 'Copyright (c) 2013 - 2016, Intel Corporation. All rights reserved.'
|
|
__usage__ = '%s -e|-d [options] <input_file>' % (__prog__)
|
|
|
|
#
|
|
# GUID for SHA 256 Hash Algorithm from UEFI Specification
|
|
#
|
|
EFI_HASH_ALGORITHM_SHA256_GUID = uuid.UUID('{51aa59de-fdf2-4ea3-bc63-875fb7842ee9}')
|
|
|
|
#
|
|
# Structure defintion to unpack EFI_CERT_BLOCK_RSA_2048_SHA256 from UEFI 2.4 Specification
|
|
#
|
|
# typedef struct _EFI_CERT_BLOCK_RSA_2048_SHA256 {
|
|
# EFI_GUID HashType;
|
|
# UINT8 PublicKey[256];
|
|
# UINT8 Signature[256];
|
|
# } EFI_CERT_BLOCK_RSA_2048_SHA256;
|
|
#
|
|
EFI_CERT_BLOCK_RSA_2048_SHA256 = collections.namedtuple('EFI_CERT_BLOCK_RSA_2048_SHA256', ['HashType','PublicKey','Signature'])
|
|
EFI_CERT_BLOCK_RSA_2048_SHA256_STRUCT = struct.Struct('16s256s256s')
|
|
|
|
#
|
|
# Filename of test signing private key that is stored in same directory as this tool
|
|
#
|
|
TEST_SIGNING_PRIVATE_KEY_FILENAME = 'TestSigningPrivateKey.pem'
|
|
|
|
if __name__ == '__main__':
|
|
#
|
|
# Create command line argument parser object
|
|
#
|
|
parser = argparse.ArgumentParser(prog=__prog__, version=__version__, usage=__usage__, description=__copyright__, conflict_handler='resolve')
|
|
group = parser.add_mutually_exclusive_group(required=True)
|
|
group.add_argument("-e", action="store_true", dest='Encode', help='encode file')
|
|
group.add_argument("-d", action="store_true", dest='Decode', help='decode file')
|
|
parser.add_argument("-o", "--output", dest='OutputFile', type=str, metavar='filename', help="specify the output filename", required=True)
|
|
parser.add_argument("--monotonic-count", dest='MonotonicCountStr', type=str, help="specify the MonotonicCount in FMP capsule.")
|
|
parser.add_argument("--private-key", dest='PrivateKeyFile', type=argparse.FileType('rb'), help="specify the private key filename. If not specified, a test signing key is used.")
|
|
parser.add_argument("-v", "--verbose", dest='Verbose', action="store_true", help="increase output messages")
|
|
parser.add_argument("-q", "--quiet", dest='Quiet', action="store_true", help="reduce output messages")
|
|
parser.add_argument("--debug", dest='Debug', type=int, metavar='[0-9]', choices=range(0,10), default=0, help="set debug level")
|
|
parser.add_argument(metavar="input_file", dest='InputFile', type=argparse.FileType('rb'), help="specify the input filename")
|
|
|
|
#
|
|
# Parse command line arguments
|
|
#
|
|
args = parser.parse_args()
|
|
|
|
#
|
|
# Generate file path to Open SSL command
|
|
#
|
|
OpenSslCommand = 'openssl'
|
|
try:
|
|
OpenSslPath = os.environ['OPENSSL_PATH']
|
|
OpenSslCommand = os.path.join(OpenSslPath, OpenSslCommand)
|
|
if ' ' in OpenSslCommand:
|
|
OpenSslCommand = '"' + OpenSslCommand + '"'
|
|
except:
|
|
pass
|
|
|
|
#
|
|
# Verify that Open SSL command is available
|
|
#
|
|
try:
|
|
Process = subprocess.Popen('%s version' % (OpenSslCommand), stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
|
|
except:
|
|
print 'ERROR: Open SSL command not available. Please verify PATH or set OPENSSL_PATH'
|
|
sys.exit(1)
|
|
|
|
Version = Process.communicate()
|
|
if Process.returncode <> 0:
|
|
print 'ERROR: Open SSL command not available. Please verify PATH or set OPENSSL_PATH'
|
|
sys.exit(Process.returncode)
|
|
print Version[0]
|
|
|
|
#
|
|
# Read input file into a buffer and save input filename
|
|
#
|
|
args.InputFileName = args.InputFile.name
|
|
args.InputFileBuffer = args.InputFile.read()
|
|
args.InputFile.close()
|
|
|
|
#
|
|
# Save output filename and check if path exists
|
|
#
|
|
OutputDir = os.path.dirname(args.OutputFile)
|
|
if not os.path.exists(OutputDir):
|
|
print 'ERROR: The output path does not exist: %s' % OutputDir
|
|
sys.exit(1)
|
|
args.OutputFileName = args.OutputFile
|
|
|
|
#
|
|
# Save private key filename and close private key file
|
|
#
|
|
try:
|
|
args.PrivateKeyFileName = args.PrivateKeyFile.name
|
|
args.PrivateKeyFile.close()
|
|
except:
|
|
try:
|
|
#
|
|
# Get path to currently executing script or executable
|
|
#
|
|
if hasattr(sys, 'frozen'):
|
|
RsaToolPath = sys.executable
|
|
else:
|
|
RsaToolPath = sys.argv[0]
|
|
if RsaToolPath.startswith('"'):
|
|
RsaToolPath = RsaToolPath[1:]
|
|
if RsaToolPath.endswith('"'):
|
|
RsaToolPath = RsaToolPath[:-1]
|
|
args.PrivateKeyFileName = os.path.join(os.path.dirname(os.path.realpath(RsaToolPath)), TEST_SIGNING_PRIVATE_KEY_FILENAME)
|
|
args.PrivateKeyFile = open(args.PrivateKeyFileName, 'rb')
|
|
args.PrivateKeyFile.close()
|
|
except:
|
|
print 'ERROR: test signing private key file %s missing' % (args.PrivateKeyFileName)
|
|
sys.exit(1)
|
|
|
|
#
|
|
# Extract public key from private key into STDOUT
|
|
#
|
|
Process = subprocess.Popen('%s rsa -in "%s" -modulus -noout' % (OpenSslCommand, args.PrivateKeyFileName), stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
|
|
PublicKeyHexString = Process.communicate()[0].split('=')[1].strip()
|
|
PublicKey = ''
|
|
while len(PublicKeyHexString) > 0:
|
|
PublicKey = PublicKey + chr(int(PublicKeyHexString[0:2],16))
|
|
PublicKeyHexString=PublicKeyHexString[2:]
|
|
if Process.returncode <> 0:
|
|
sys.exit(Process.returncode)
|
|
|
|
if args.MonotonicCountStr:
|
|
try:
|
|
if args.MonotonicCountStr.upper().startswith('0X'):
|
|
args.MonotonicCountValue = (long)(args.MonotonicCountStr, 16)
|
|
else:
|
|
args.MonotonicCountValue = (long)(args.MonotonicCountStr)
|
|
except:
|
|
pass
|
|
|
|
if args.Encode:
|
|
FullInputFileBuffer = args.InputFileBuffer
|
|
if args.MonotonicCountStr:
|
|
format = "%dsQ" % len(args.InputFileBuffer)
|
|
FullInputFileBuffer = struct.pack(format, args.InputFileBuffer, args.MonotonicCountValue)
|
|
#
|
|
# Sign the input file using the specified private key and capture signature from STDOUT
|
|
#
|
|
Process = subprocess.Popen('%s sha256 -sign "%s"' % (OpenSslCommand, args.PrivateKeyFileName), stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
|
|
Signature = Process.communicate(input=FullInputFileBuffer)[0]
|
|
if Process.returncode <> 0:
|
|
sys.exit(Process.returncode)
|
|
|
|
#
|
|
# Write output file that contains hash GUID, Public Key, Signature, and Input data
|
|
#
|
|
args.OutputFile = open(args.OutputFileName, 'wb')
|
|
args.OutputFile.write(EFI_HASH_ALGORITHM_SHA256_GUID.get_bytes_le())
|
|
args.OutputFile.write(PublicKey)
|
|
args.OutputFile.write(Signature)
|
|
args.OutputFile.write(args.InputFileBuffer)
|
|
args.OutputFile.close()
|
|
|
|
if args.Decode:
|
|
#
|
|
# Parse Hash Type, Public Key, and Signature from the section header
|
|
#
|
|
Header = EFI_CERT_BLOCK_RSA_2048_SHA256._make(EFI_CERT_BLOCK_RSA_2048_SHA256_STRUCT.unpack_from(args.InputFileBuffer))
|
|
args.InputFileBuffer = args.InputFileBuffer[EFI_CERT_BLOCK_RSA_2048_SHA256_STRUCT.size:]
|
|
|
|
#
|
|
# Verify that the Hash Type matches the expected SHA256 type
|
|
#
|
|
if uuid.UUID(bytes_le = Header.HashType) <> EFI_HASH_ALGORITHM_SHA256_GUID:
|
|
print 'ERROR: unsupport hash GUID'
|
|
sys.exit(1)
|
|
|
|
#
|
|
# Verify the public key
|
|
#
|
|
if Header.PublicKey <> PublicKey:
|
|
print 'ERROR: Public key in input file does not match public key from private key file'
|
|
sys.exit(1)
|
|
|
|
FullInputFileBuffer = args.InputFileBuffer
|
|
if args.MonotonicCountStr:
|
|
format = "%dsQ" % len(args.InputFileBuffer)
|
|
FullInputFileBuffer = struct.pack(format, args.InputFileBuffer, args.MonotonicCountValue)
|
|
|
|
#
|
|
# Write Signature to output file
|
|
#
|
|
open(args.OutputFileName, 'wb').write(Header.Signature)
|
|
|
|
#
|
|
# Verify signature
|
|
#
|
|
Process = subprocess.Popen('%s sha256 -prverify "%s" -signature %s' % (OpenSslCommand, args.PrivateKeyFileName, args.OutputFileName), stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
|
|
Process.communicate(input=FullInputFileBuffer)
|
|
if Process.returncode <> 0:
|
|
print 'ERROR: Verification failed'
|
|
os.remove (args.OutputFileName)
|
|
sys.exit(Process.returncode)
|
|
|
|
#
|
|
# Save output file contents from input file
|
|
#
|
|
open(args.OutputFileName, 'wb').write(args.InputFileBuffer)
|