BaseTools: Rsa2048Sha256Sign add new option to support Monotonic count
[mirror_edk2.git] / BaseTools / Source / Python / Rsa2048Sha256Sign / Rsa2048Sha256Sign.py
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65ce860e 1## @file\r
9b98c416 2# This tool encodes and decodes GUIDed FFS sections or FMP capsule for a GUID type of\r
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3# EFI_CERT_TYPE_RSA2048_SHA256_GUID defined in the UEFI 2.4 Specification as\r
4# {0xa7717414, 0xc616, 0x4977, {0x94, 0x20, 0x84, 0x47, 0x12, 0xa7, 0x35, 0xbf}}\r
5# This tool has been tested with OpenSSL 1.0.1e 11 Feb 2013\r
6#\r
9b98c416 7# Copyright (c) 2013 - 2016, Intel Corporation. All rights reserved.<BR>\r
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8# This program and the accompanying materials\r
9# are licensed and made available under the terms and conditions of the BSD License\r
10# which accompanies this distribution. The full text of the license may be found at\r
11# http://opensource.org/licenses/bsd-license.php\r
12#\r
13# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
14# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
15#\r
16\r
17'''\r
18Rsa2048Sha256Sign\r
19'''\r
20\r
21import os\r
22import sys\r
23import argparse \r
24import subprocess\r
25import uuid\r
26import struct\r
27import collections\r
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28from Common.BuildVersion import gBUILD_VERSION\r
29\r
30#\r
31# Globals for help information\r
32#\r
33__prog__ = 'Rsa2048Sha256Sign'\r
34__version__ = '%s Version %s' % (__prog__, '0.9 ' + gBUILD_VERSION)\r
9b98c416 35__copyright__ = 'Copyright (c) 2013 - 2016, Intel Corporation. All rights reserved.'\r
c9df168f 36__usage__ = '%s -e|-d [options] <input_file>' % (__prog__)\r
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37\r
38#\r
39# GUID for SHA 256 Hash Algorithm from UEFI Specification\r
40#\r
41EFI_HASH_ALGORITHM_SHA256_GUID = uuid.UUID('{51aa59de-fdf2-4ea3-bc63-875fb7842ee9}')\r
42\r
43#\r
44# Structure defintion to unpack EFI_CERT_BLOCK_RSA_2048_SHA256 from UEFI 2.4 Specification\r
45#\r
46# typedef struct _EFI_CERT_BLOCK_RSA_2048_SHA256 {\r
47# EFI_GUID HashType;\r
48# UINT8 PublicKey[256];\r
49# UINT8 Signature[256];\r
50# } EFI_CERT_BLOCK_RSA_2048_SHA256;\r
51#\r
52EFI_CERT_BLOCK_RSA_2048_SHA256 = collections.namedtuple('EFI_CERT_BLOCK_RSA_2048_SHA256', ['HashType','PublicKey','Signature'])\r
53EFI_CERT_BLOCK_RSA_2048_SHA256_STRUCT = struct.Struct('16s256s256s')\r
54\r
55#\r
56# Filename of test signing private key that is stored in same directory as this tool\r
57#\r
58TEST_SIGNING_PRIVATE_KEY_FILENAME = 'TestSigningPrivateKey.pem'\r
59\r
60if __name__ == '__main__':\r
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61 #\r
62 # Create command line argument parser object\r
63 # \r
c9df168f 64 parser = argparse.ArgumentParser(prog=__prog__, version=__version__, usage=__usage__, description=__copyright__, conflict_handler='resolve')\r
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65 group = parser.add_mutually_exclusive_group(required=True)\r
66 group.add_argument("-e", action="store_true", dest='Encode', help='encode file')\r
67 group.add_argument("-d", action="store_true", dest='Decode', help='decode file')\r
b40286bb 68 parser.add_argument("-o", "--output", dest='OutputFile', type=str, metavar='filename', help="specify the output filename", required=True)\r
9b98c416 69 parser.add_argument("--monotonic-count", dest='MonotonicCountStr', type=str, help="specify the MonotonicCount in FMP capsule.")\r
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70 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.")\r
71 parser.add_argument("-v", "--verbose", dest='Verbose', action="store_true", help="increase output messages")\r
72 parser.add_argument("-q", "--quiet", dest='Quiet', action="store_true", help="reduce output messages")\r
73 parser.add_argument("--debug", dest='Debug', type=int, metavar='[0-9]', choices=range(0,10), default=0, help="set debug level")\r
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74 parser.add_argument(metavar="input_file", dest='InputFile', type=argparse.FileType('rb'), help="specify the input filename")\r
75\r
76 #\r
77 # Parse command line arguments\r
78 # \r
79 args = parser.parse_args()\r
80\r
81 #\r
82 # Generate file path to Open SSL command\r
83 #\r
84 OpenSslCommand = 'openssl'\r
85 try:\r
86 OpenSslPath = os.environ['OPENSSL_PATH']\r
87 OpenSslCommand = os.path.join(OpenSslPath, OpenSslCommand)\r
88 except:\r
89 pass\r
90\r
91 #\r
92 # Verify that Open SSL command is available\r
93 #\r
94 try:\r
95 Process = subprocess.Popen('%s version' % (OpenSslCommand), stdout=subprocess.PIPE, stderr=subprocess.PIPE)\r
96 except: \r
97 print 'ERROR: Open SSL command not available. Please verify PATH or set OPENSSL_PATH'\r
98 sys.exit(1)\r
99 \r
100 Version = Process.communicate()\r
101 if Process.returncode <> 0:\r
102 print 'ERROR: Open SSL command not available. Please verify PATH or set OPENSSL_PATH'\r
103 sys.exit(Process.returncode)\r
104 print Version[0]\r
105 \r
106 #\r
107 # Read input file into a buffer and save input filename\r
108 # \r
109 args.InputFileName = args.InputFile.name\r
110 args.InputFileBuffer = args.InputFile.read()\r
111 args.InputFile.close()\r
112\r
113 #\r
b40286bb 114 # Save output filename and check if path exists\r
65ce860e 115 #\r
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116 OutputDir = os.path.dirname(args.OutputFile)\r
117 if not os.path.exists(OutputDir):\r
118 print 'ERROR: The output path does not exist: %s' % OutputDir\r
119 sys.exit(1)\r
120 args.OutputFileName = args.OutputFile\r
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121\r
122 #\r
123 # Save private key filename and close private key file\r
124 #\r
125 try:\r
126 args.PrivateKeyFileName = args.PrivateKeyFile.name\r
127 args.PrivateKeyFile.close()\r
128 except:\r
129 try:\r
130 #\r
131 # Get path to currently executing script or executable\r
132 #\r
133 if hasattr(sys, 'frozen'):\r
134 RsaToolPath = sys.executable\r
135 else:\r
136 RsaToolPath = sys.argv[0]\r
137 if RsaToolPath.startswith('"'):\r
138 RsaToolPath = RsaToolPath[1:]\r
139 if RsaToolPath.endswith('"'):\r
140 RsaToolPath = RsaToolPath[:-1]\r
141 args.PrivateKeyFileName = os.path.join(os.path.dirname(os.path.realpath(RsaToolPath)), TEST_SIGNING_PRIVATE_KEY_FILENAME)\r
142 args.PrivateKeyFile = open(args.PrivateKeyFileName, 'rb')\r
143 args.PrivateKeyFile.close()\r
144 except:\r
145 print 'ERROR: test signing private key file %s missing' % (args.PrivateKeyFileName)\r
146 sys.exit(1)\r
147\r
148 #\r
149 # Extract public key from private key into STDOUT\r
150 #\r
151 Process = subprocess.Popen('%s rsa -in "%s" -modulus -noout' % (OpenSslCommand, args.PrivateKeyFileName), stdout=subprocess.PIPE, stderr=subprocess.PIPE)\r
152 PublicKeyHexString = Process.communicate()[0].split('=')[1].strip()\r
153 PublicKey = ''\r
154 while len(PublicKeyHexString) > 0:\r
155 PublicKey = PublicKey + chr(int(PublicKeyHexString[0:2],16))\r
156 PublicKeyHexString=PublicKeyHexString[2:]\r
157 if Process.returncode <> 0:\r
158 sys.exit(Process.returncode)\r
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159\r
160 if args.MonotonicCountStr:\r
161 try:\r
162 if args.MonotonicCountStr.upper().startswith('0X'):\r
163 args.MonotonicCountValue = (long)(args.MonotonicCountStr, 16)\r
164 else:\r
165 args.MonotonicCountValue = (long)(args.MonotonicCountStr)\r
166 except:\r
167 pass\r
168\r
65ce860e 169 if args.Encode:\r
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170 FullInputFileBuffer = args.InputFileBuffer\r
171 if args.MonotonicCountStr:\r
172 format = "Q%ds" % len(args.InputFileBuffer)\r
173 FullInputFileBuffer = struct.pack(format,args.MonotonicCountValue, args.InputFileBuffer)\r
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174 # \r
175 # Sign the input file using the specified private key and capture signature from STDOUT\r
176 #\r
177 Process = subprocess.Popen('%s sha256 -sign "%s"' % (OpenSslCommand, args.PrivateKeyFileName), stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)\r
9b98c416 178 Signature = Process.communicate(input=FullInputFileBuffer)[0]\r
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179 if Process.returncode <> 0:\r
180 sys.exit(Process.returncode)\r
181 \r
182 #\r
183 # Write output file that contains hash GUID, Public Key, Signature, and Input data\r
184 # \r
185 args.OutputFile = open(args.OutputFileName, 'wb')\r
186 args.OutputFile.write(EFI_HASH_ALGORITHM_SHA256_GUID.get_bytes_le())\r
187 args.OutputFile.write(PublicKey)\r
188 args.OutputFile.write(Signature)\r
189 args.OutputFile.write(args.InputFileBuffer)\r
190 args.OutputFile.close()\r
191\r
192 if args.Decode:\r
193 #\r
194 # Parse Hash Type, Public Key, and Signature from the section header\r
195 #\r
196 Header = EFI_CERT_BLOCK_RSA_2048_SHA256._make(EFI_CERT_BLOCK_RSA_2048_SHA256_STRUCT.unpack_from(args.InputFileBuffer))\r
197 args.InputFileBuffer = args.InputFileBuffer[EFI_CERT_BLOCK_RSA_2048_SHA256_STRUCT.size:]\r
198 \r
199 #\r
200 # Verify that the Hash Type matches the expected SHA256 type\r
201 #\r
202 if uuid.UUID(bytes_le = Header.HashType) <> EFI_HASH_ALGORITHM_SHA256_GUID:\r
203 print 'ERROR: unsupport hash GUID'\r
204 sys.exit(1)\r
205\r
206 #\r
207 # Verify the public key\r
208 #\r
209 if Header.PublicKey <> PublicKey:\r
210 print 'ERROR: Public key in input file does not match public key from private key file'\r
211 sys.exit(1)\r
212\r
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213 FullInputFileBuffer = args.InputFileBuffer\r
214 if args.MonotonicCountStr:\r
215 format = "Q%ds" % len(args.InputFileBuffer)\r
216 FullInputFileBuffer = struct.pack(format,args.MonotonicCountValue, args.InputFileBuffer)\r
217\r
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218 #\r
219 # Write Signature to output file\r
220 #\r
221 open(args.OutputFileName, 'wb').write(Header.Signature)\r
222 \r
223 #\r
224 # Verify signature\r
225 # \r
226 Process = subprocess.Popen('%s sha256 -prverify "%s" -signature %s' % (OpenSslCommand, args.PrivateKeyFileName, args.OutputFileName), stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)\r
9b98c416 227 Process.communicate(input=FullInputFileBuffer)\r
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228 if Process.returncode <> 0:\r
229 print 'ERROR: Verification failed'\r
230 os.remove (args.OutputFileName)\r
231 sys.exit(Process.returncode)\r
232\r
233 #\r
234 # Save output file contents from input file \r
235 # \r
236 open(args.OutputFileName, 'wb').write(args.InputFileBuffer)\r