2 # PyGOST -- Pure Python GOST cryptographic functions library
3 # Copyright (C) 2015-2019 Sergey Matveev <stargrave@stargrave.org>
5 # This program is free software: you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation, either version 3 of the License, or
8 # (at your option) any later version.
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program. If not, see <http://www.gnu.org/licenses/>.
18 from base64 import b64decode
19 from unittest import skipIf
20 from unittest import TestCase
22 from pygost.gost28147 import cfb_decrypt
23 from pygost.gost3410 import CURVE_PARAMS
24 from pygost.gost3410 import GOST3410Curve
25 from pygost.gost3410 import prv_unmarshal
26 from pygost.gost3410 import pub_unmarshal
27 from pygost.gost3410 import public_key
28 from pygost.gost3410 import verify
29 from pygost.gost3410_vko import kek_34102012256
30 from pygost.gost3410_vko import ukm_unmarshal
31 from pygost.gost34112012256 import GOST34112012256
32 from pygost.gost34112012512 import GOST34112012512
33 from pygost.utils import hexdec
34 from pygost.wrap import unwrap_cryptopro
35 from pygost.wrap import unwrap_gost
38 from pyderasn import DecodePathDefBy
39 from pyderasn import OctetString
41 from pygost.asn1schemas.cms import ContentInfo
42 from pygost.asn1schemas.oids import id_envelopedData
43 from pygost.asn1schemas.oids import id_tc26_gost3410_2012_256
44 from pygost.asn1schemas.oids import id_tc26_gost3410_2012_512
46 pyderasn_exists = False
48 pyderasn_exists = True
51 @skipIf(not pyderasn_exists, "PyDERASN dependency is required")
52 class TestSigned(TestCase):
53 """SignedData test vectors from "Использование
54 алгоритмов ГОСТ 28147-89, ГОСТ Р 34.11 и ГОСТ Р 34.10 в
55 криптографических сообщениях формата CMS" (TK26CMS.pdf)
66 content_info, tail = ContentInfo().decode(content_info_raw)
67 self.assertSequenceEqual(tail, b"")
68 self.assertIsNotNone(content_info["content"].defined)
69 _, signed_data = content_info["content"].defined
70 self.assertEqual(len(signed_data["signerInfos"]), 1)
71 curve = GOST3410Curve(*CURVE_PARAMS[curve_name])
72 self.assertTrue(verify(
74 public_key(curve, prv_unmarshal(prv_key_raw)),
75 hasher(bytes(signed_data["encapContentInfo"]["eContent"])).digest()[::-1],
76 bytes(signed_data["signerInfos"][0]["signature"]),
81 content_info_raw = b64decode("""
82 MIIBBQYJKoZIhvcNAQcCoIH3MIH0AgEBMQ4wDAYIKoUDBwEBAgIFADAbBgkqhkiG
83 9w0BBwGgDgQMVGVzdCBtZXNzYWdlMYHBMIG+AgEBMFswVjEpMCcGCSqGSIb3DQEJ
84 ARYaR29zdFIzNDEwLTIwMTJAZXhhbXBsZS5jb20xKTAnBgNVBAMTIEdvc3RSMzQx
85 MC0yMDEyICgyNTYgYml0KSBleGFtcGxlAgEBMAwGCCqFAwcBAQICBQAwDAYIKoUD
86 BwEBAQEFAARAkptb2ekZbC94FaGDQeP70ExvTkXtOY9zgz3cCco/hxPhXUVo3eCx
87 VNwDQ8enFItJZ8DEX4blZ8QtziNCMl5HbA==
89 prv_key_raw = hexdec("BFCF1D623E5CDD3032A7C6EABB4A923C46E43D640FFEAAF2C3ED39A8FA399924")[::-1]
93 "id-GostR3410-2001-CryptoPro-XchA-ParamSet",
99 content_info_raw = b64decode("""
100 MIIBSQYJKoZIhvcNAQcCoIIBOjCCATYCAQExDjAMBggqhQMHAQECAwUAMBsGCSqG
101 SIb3DQEHAaAOBAxUZXN0IG1lc3NhZ2UxggECMIH/AgEBMFswVjEpMCcGCSqGSIb3
102 DQEJARYaR29zdFIzNDEwLTIwMTJAZXhhbXBsZS5jb20xKTAnBgNVBAMTIEdvc3RS
103 MzQxMC0yMDEyICg1MTIgYml0KSBleGFtcGxlAgEBMAwGCCqFAwcBAQIDBQAwDAYI
104 KoUDBwEBAQIFAASBgFyVohNhMHUi/+RAF3Gh/cC7why6v+4jPWVlx1TYlXtV8Hje
105 hI2Y+rP52/LO6EUHG/XcwCBbUxmRWsbUSRRBAexmaafkSdvv2FFwC8kHOcti+UPX
106 PS+KRYxT8vhcsBLWWxDkc1McI7aF09hqtED36mQOfACzeJjEoUjALpmJob1V
108 prv_key_raw = hexdec("3FC01CDCD4EC5F972EB482774C41E66DB7F380528DFE9E67992BA05AEE462435757530E641077CE587B976C8EEB48C48FD33FD175F0C7DE6A44E014E6BCB074B")[::-1]
112 "id-tc26-gost-3410-12-512-paramSetB",
118 @skipIf(not pyderasn_exists, "PyDERASN dependency is required")
119 class TestDigested(TestCase):
120 """DigestedData test vectors from "Использование
121 алгоритмов ГОСТ 28147-89, ГОСТ Р 34.11 и ГОСТ Р 34.10 в
122 криптографических сообщениях формата CMS" (TK26CMS.pdf)
125 def process_cms(self, content_info_raw, hasher):
126 content_info, tail = ContentInfo().decode(content_info_raw)
127 self.assertSequenceEqual(tail, b"")
128 self.assertIsNotNone(content_info["content"].defined)
129 _, digested_data = content_info["content"].defined
130 self.assertSequenceEqual(
131 hasher(bytes(digested_data["encapContentInfo"]["eContent"])).digest(),
132 bytes(digested_data["digest"]),
136 content_info_raw = b64decode("""
137 MIGdBgkqhkiG9w0BBwWggY8wgYwCAQAwDAYIKoUDBwEBAgIFADBXBgkqhkiG9w0B
138 BwGgSgRI0eUg4uXy8OgsINHy8Ojh7uboIOLt8/boLCDi5f7y+iDxIOzu8P8g8fLw
139 5evg7Ogg7eAg9fDg4fD7/yDv6/rq+yDI4+7w5eL7BCCd0v5OkECeXah/U5dtdAWw
140 wMrGKPxmmnQdUAY8VX6PUA==
142 self.process_cms(content_info_raw, GOST34112012256)
145 content_info_raw = b64decode("""
146 MIG0BgkqhkiG9w0BBwWggaYwgaMCAQAwDAYIKoUDBwEBAgMFADBOBgkqhkiG9w0B
147 BwGgQQQ/MDEyMzQ1Njc4OTAxMjM0NTY3ODkwMTIzNDU2Nzg5MDEyMzQ1Njc4OTAx
148 MjM0NTY3ODkwMTIzNDU2Nzg5MDEyBEAbVNAaSvW51cw9htaNKFRisZq8JHUiLzXA
149 hRIr5Lof+gCtMPh2ezqCOExldPAkwxHipIEzKwjvf0F5eJHBZG9I
151 self.process_cms(content_info_raw, GOST34112012512)
154 @skipIf(not pyderasn_exists, "PyDERASN dependency is required")
155 class TestEnvelopedKTRI(TestCase):
156 """EnvelopedData KeyTransRecipientInfo-based test vectors from
157 "Использование алгоритмов ГОСТ 28147-89, ГОСТ Р 34.11 и ГОСТ Р 34.10
158 в криптографических сообщениях формата CMS" (TK26CMS.pdf)
169 sbox = "id-tc26-gost-28147-param-Z"
170 content_info, tail = ContentInfo().decode(content_info_raw, ctx={
175 DecodePathDefBy(id_envelopedData),
180 DecodePathDefBy(spki_algorithm),
181 "transportParameters",
182 "ephemeralPublicKey",
188 ("..", "subjectPublicKey"),
190 id_tc26_gost3410_2012_256: OctetString(),
191 id_tc26_gost3410_2012_512: OctetString(),
195 ) for spki_algorithm in (
196 id_tc26_gost3410_2012_256,
197 id_tc26_gost3410_2012_512,
201 self.assertSequenceEqual(tail, b"")
202 self.assertIsNotNone(content_info["content"].defined)
203 _, enveloped_data = content_info["content"].defined
204 eci = enveloped_data["encryptedContentInfo"]
205 ri = enveloped_data["recipientInfos"][0]
206 self.assertIsNotNone(ri["ktri"]["encryptedKey"].defined)
207 _, encrypted_key = ri["ktri"]["encryptedKey"].defined
208 ukm = bytes(encrypted_key["transportParameters"]["ukm"])
209 spk = encrypted_key["transportParameters"]["ephemeralPublicKey"]["subjectPublicKey"]
210 self.assertIsNotNone(spk.defined)
211 _, pub_key_their = spk.defined
212 curve = GOST3410Curve(*CURVE_PARAMS[curve_name])
213 kek = keker(curve, prv_key_our, bytes(pub_key_their), ukm)
214 key_wrapped = bytes(encrypted_key["sessionEncryptedKey"]["encryptedKey"])
215 mac = bytes(encrypted_key["sessionEncryptedKey"]["macKey"])
216 cek = unwrap_cryptopro(kek, ukm + key_wrapped + mac, sbox=sbox)
217 ciphertext = bytes(eci["encryptedContent"])
218 self.assertIsNotNone(eci["contentEncryptionAlgorithm"]["parameters"].defined)
219 _, encryption_params = eci["contentEncryptionAlgorithm"]["parameters"].defined
220 iv = bytes(encryption_params["iv"])
221 self.assertSequenceEqual(
222 cfb_decrypt(cek, ciphertext, iv, sbox=sbox, mesh=True),
227 content_info_raw = b64decode("""
228 MIIKGgYJKoZIhvcNAQcDoIIKCzCCCgcCAQAxggE0MIIBMAIBADBbMFYxKTAnBgkq
229 hkiG9w0BCQEWGkdvc3RSMzQxMC0yMDEyQGV4YW1wbGUuY29tMSkwJwYDVQQDEyBH
230 b3N0UjM0MTAtMjAxMiAyNTYgYml0cyBleGNoYW5nZQIBATAfBggqhQMHAQEBATAT
231 BgcqhQMCAiQABggqhQMHAQECAgSBrDCBqTAoBCCVJxUMdbKRzCJ5K1NWJIXnN7Ul
232 zaceeFlblA2qH4wZrgQEsHnIG6B9BgkqhQMHAQIFAQGgZjAfBggqhQMHAQEBATAT
233 BgcqhQMCAiQABggqhQMHAQECAgNDAARAFoqoLg1lV780co6GdwtjLtS4KCXv9VGR
234 sd7PTPHCT/5iGbvOlKNW2I8UhayJ0dv7RV7Nb1lDIxPxf4Mbp2CikgQI1b4+WpGE
235 sfQwggjIBgkqhkiG9w0BBwEwHwYGKoUDAgIVMBUECHYNkdvFoYdyBgkqhQMHAQIF
236 AQGAggiYvFFpJKILAFdXjcdLLYv4eruXzL/wOXL8y9HHIDMbSzV1GM033J5Yt/p4
237 H6JYe1L1hjAfE/BAAYBndof2sSUxC3/I7xj+b7M8BZ3GYPqATPtR4aCQDK6z91lx
238 nDBAWx0HdsStT5TOj/plMs4zJDadvIJLfjmGkt0Np8FSnSdDPOcJAO/jcwiOPopg
239 +Z8eIuZNmY4seegTLue+7DGqvqi1GdZdMnvXBFIKc9m5DUsC7LdyboqKImh6giZE
240 YZnxb8a2naersPylhrf+zp4Piwwv808yOrD6LliXUiH0RojlmuaQP4wBkb7m073h
241 MeAWEWSvyXzOvOOuFST/hxPEupiTRoHPUdfboJT3tNpizUhE384SrvXHpwpgivQ4
242 J0zF2/uzTBEupXR6dFC9rTHAK3X79SltqBNnHyIXBwe+BMqTmKTfnlPVHBUfTXZg
243 oakDItwKwa1MBOZeciwtUFza+7o9FZhKIandb848chGdgd5O9ksaXvPJDIPxQjZd
244 EBVhnXLlje4TScImwTdvYB8GsI8ljKb2bL3FjwQWGbPaOjXc2D9w+Ore8bk1E4TA
245 ayhypU7MH3Mq1EBZ4j0iROEFBQmYRZn8vAKZ0K7aPxcDeAnKAJxdokqrMkLgI6WX
246 0glh/3Cs9dI+0D2GqMSygauKCD0vTIo3atkEQswDZR4pMx88gB4gmx7iIGrc/ZXs
247 ZqHI7NQqeKtBwv2MCIj+/UTqdYDqbaniDwdVS8PE9nQnNU4gKffq3JbT+wRjJv6M
248 Dr231bQHgAsFTVKbZgoL4gj4V7bLQUmW06+W1BQUJ2+Sn7fp+Xet9Xd3cGtNdxzQ
249 zl6sGuiOlTNe0bfKP7QIMC7ekjflLBx8nwa2GZG19k3O0Z9JcDdN/kz6bGpPNssY
250 AIOkTvLQjxIM9MhRqIv6ee0rowTWQPwXJP7yHApop4XZvVX6h9gG2gazqbDej2lo
251 tAcfRAKj/LJ/bk9+OlNXOXVCKnwE1kXxZDsNJ51GdCungC56U/hmd3C1RhSLTpEc
252 FlOWgXKNjbn6SQrlq1yASKKr80T0fL7PFoYwKZoQbKMAVZQC1VBWQltHkEzdL73x
253 FwgZULNfdflF8sEhFC/zsVqckD/UnhzJz88PtCslMArJ7ntbEF1GzsSSfRfjBqnl
254 kSUreE5XX6+c9yp5HcJBiMzp6ZqqWWaED5Y5xp1hZeYjuKbDMfY4tbWVc7Hy0dD2
255 KGfZLp5umqvPNs7aVBPmvuxtrnxcJlUB8u2HoiHc6/TuhrpaopYGBhxL9+kezuLR
256 v18nsAg8HOmcCNUS46NXQj/Mdpx8W+RsyzCQkJjieT/Yed20Zxq1zJoXIS0xAaUH
257 TdE2dWqiT6TGlh/KQYk3KyFPNnDmzJm04a2VWIwpp4ypXyxrB7XxnVY6Q4YBYbZs
258 FycxGjJWqj7lwc+lgZ8YV2WJ4snEo2os8SsA2GFWcUMiVTHDnEJvphDHmhWsf26A
259 bbRqwaRXNjhj05DamTRsczgvfjdl1pk4lJYE4ES3nixtMe4s1X8nSmM4KvfyVDul
260 J8uTpw1ZFnolTdfEL63BSf4FREoEqKB7cKuD7cpn7Rg4kRdM0/BLZGuxkH+pGMsI
261 Bb8LecUWyjGsI6h74Wz/U2uBrfgdRqhR+UsfB2QLaRgM6kCXZ4vM0auuzBViFCwK
262 tYMHzZWWz8gyVtJ0mzt1DrHCMx4pTS4yOhv4RkXBS/rub4VhVIsOGOGar5ZYtH47
263 uBbdw3NC05JIFM7lI31d0s1fvvkTUR7eaqRW+SnR2c2oHpWlSO+Q0mrzx+vvOTdj
264 xa713YtklBvyUUQr2SIbsXGpFnwjn+sXK1onAavp/tEax8sNZvxg5yeseFcWn+gD
265 4rjk9FiSd1wp4fTDQFJ19evqruqKlq6k18l/ZAyUcEbIWSz2s3HfAAoAQyFPX1Q2
266 95gVhRRw6lP4S6VPCfn/f+5jV4TcT6W/giRaHIk9Hty+g8bx1bFXaKVkQZ5R2Vmk
267 qsZ65ZgCrYQJmcErPmYybvP7NBeDS4AOSgBQAGMQF4xywdNm6bniWWo3N/xkFv32
268 /25x8okGgD8QcYKmhzieLSSzOvM/exB14RO84YZOkZzm01Jll0nac/LEazKoVWbn
269 0VdcQ7pYEOqeMBXipsicNVYA/uhonp6op9cpIVYafPr0npCGwwhwcRuOrgSaZyCn
270 VG2tPkEOv9LKmUbhnaDA2YUSzOOjcCpIVvTSBnUEiorYpfRYgQLrbcd2qhVvNCLX
271 8ujZfMqXQXK8n5BK8JxNtczvaf+/2dfv1dQl0lHEAQhbNcsJ0t5GPhsSCC5oMBJl
272 ZJuOEO/8PBWKEnMZOM+Dz7gEgsBhGyMFFrKpiwQRpyEshSD2QpnK6Lp0t5C8Za2G
273 lhyZsEr+93AYOb5mm5+z02B4Yq9+RpepvjoqVeq/2uywZNq9MS98zVgNsmpryvTZ
274 3HJHHB20u2jcVu0G3Nhiv22lD70JWCYFAOupjgVcUcaBxjxwUMAvgHg7JZqs6mC6
275 tvTKwQ4NtDhoAhARlDeWSwCWb2vPH2H7Lmqokif1RfvJ0hrLzkJuHdWrzIYzXpPs
276 +v9XJxLvbdKi9KU1Halq9S8dXT1fvs9DJTpUV/KW7QkRsTQJhTJBkQ07WUSJ4gBS
277 Qp4efxSRNIfMj7DR6qLLf13RpIPTJO9/+gNuBIFcupWVfUL7tJZt8Qsf9eGwZfP+
278 YyhjC8AyZjH4/9RzLHSjuq6apgw3Mzw0j572Xg6xDLMK8C3Tn/vrLOvAd96b9MkF
279 3+ZHSLW3IgOiy+1jvK/20CZxNWc+pey8v4zji1hI17iohsipX/uZKRxhxF6+Xn2R
280 UQp6qoxHAspNXgWQ57xg7C3+gmi4ciVr0fT9pg54ogcowrRH+I6wd0EpeWPbzfnQ
281 pRmMVN+YtRsrEHwH3ToQ/i4vrtgA+eONuKT2uKZFikxA+VNmeeGdhkgqETMihQ==
283 prv_key_our = hexdec("BFCF1D623E5CDD3032A7C6EABB4A923C46E43D640FFEAAF2C3ED39A8FA399924")[::-1]
285 def keker(curve, prv, pub, ukm):
286 return kek_34102012256(
297 "id-GostR3410-2001-CryptoPro-XchA-ParamSet",
299 b"Test data to encrypt.\n" * 100,
303 content_info_raw = b64decode("""
304 MIIB0gYJKoZIhvcNAQcDoIIBwzCCAb8CAQAxggF8MIIBeAIBADBbMFYxKTAnBgkq
305 hkiG9w0BCQEWGkdvc3RSMzQxMC0yMDEyQGV4YW1wbGUuY29tMSkwJwYDVQQDEyBH
306 b3N0UjM0MTAtMjAxMiA1MTIgYml0cyBleGNoYW5nZQIBATAhBggqhQMHAQEBAjAV
307 BgkqhQMHAQIBAgIGCCqFAwcBAQIDBIHyMIHvMCgEIIsYzbVLn33aLinQ7SLNA7y+
308 Lrm02khqDCfXrNS9iiMhBATerS8zoIHCBgkqhQMHAQIFAQGggaowIQYIKoUDBwEB
309 AQIwFQYJKoUDBwECAQICBggqhQMHAQECAwOBhAAEgYAYiTVLKpSGaAvjJEDQ0hdK
310 qR/jek5Q9Q2pXC+NkOimQh7dpCi+wcaHlPcBk96hmpnOFvLaiokX8V6jqtBl5gdk
311 M40kOXv8kcDdTzEVKA/ZLxA8xanL+gTD6ZjaPsUu06nsA2MoMBWcHLUzueaP3bGT
312 /yHTV+Za5xdcQehag/lNBgQIvCw4uUl0XC4wOgYJKoZIhvcNAQcBMB8GBiqFAwIC
313 FTAVBAj+1QzaXaN9FwYJKoUDBwECBQEBgAyK54euw0sHhEVEkA0=
315 prv_key_our = hexdec("3FC01CDCD4EC5F972EB482774C41E66DB7F380528DFE9E67992BA05AEE462435757530E641077CE587B976C8EEB48C48FD33FD175F0C7DE6A44E014E6BCB074B")[::-1]
317 def keker(curve, prv, pub, ukm):
318 return kek_34102012256(
321 pub_unmarshal(pub, mode=2012),
328 "id-tc26-gost-3410-12-512-paramSetB",
334 @skipIf(not pyderasn_exists, "PyDERASN dependency is required")
335 class TestEnvelopedKARI(TestCase):
336 """EnvelopedData KeyAgreeRecipientInfo-based test vectors from
337 "Использование алгоритмов ГОСТ 28147-89, ГОСТ Р 34.11 и ГОСТ Р 34.10
338 в криптографических сообщениях формата CMS" (TK26CMS.pdf)
349 sbox = "id-tc26-gost-28147-param-Z"
350 content_info, tail = ContentInfo().decode(content_info_raw, ctx={
355 DecodePathDefBy(id_envelopedData),
368 id_tc26_gost3410_2012_256: OctetString(),
369 id_tc26_gost3410_2012_512: OctetString(),
373 ) for spki_algorithm in (
374 id_tc26_gost3410_2012_256,
375 id_tc26_gost3410_2012_512,
379 self.assertSequenceEqual(tail, b"")
380 self.assertIsNotNone(content_info["content"].defined)
381 _, enveloped_data = content_info["content"].defined
382 eci = enveloped_data["encryptedContentInfo"]
383 kari = enveloped_data["recipientInfos"][0]["kari"]
384 self.assertIsNotNone(kari["originator"]["originatorKey"]["publicKey"].defined)
385 _, pub_key_their = kari["originator"]["originatorKey"]["publicKey"].defined
386 ukm = bytes(kari["ukm"])
387 rek = kari["recipientEncryptedKeys"][0]
388 curve = GOST3410Curve(*CURVE_PARAMS[curve_name])
389 kek = keker(curve, prv_key_our, bytes(pub_key_their), ukm)
390 self.assertIsNotNone(rek["encryptedKey"].defined)
391 _, encrypted_key = rek["encryptedKey"].defined
392 key_wrapped = bytes(encrypted_key["encryptedKey"])
393 mac = bytes(encrypted_key["macKey"])
394 cek = unwrap_gost(kek, ukm + key_wrapped + mac, sbox=sbox)
395 ciphertext = bytes(eci["encryptedContent"])
396 self.assertIsNotNone(eci["contentEncryptionAlgorithm"]["parameters"].defined)
397 _, encryption_params = eci["contentEncryptionAlgorithm"]["parameters"].defined
398 iv = bytes(encryption_params["iv"])
399 self.assertSequenceEqual(
400 cfb_decrypt(cek, ciphertext, iv, sbox=sbox, mesh=True),
405 content_info_raw = b64decode("""
406 MIIBhgYJKoZIhvcNAQcDoIIBdzCCAXMCAQIxggEwoYIBLAIBA6BooWYwHwYIKoUD
407 BwEBAQEwEwYHKoUDAgIkAAYIKoUDBwEBAgIDQwAEQPAdWM4pO38iZ49UjaXQpq+a
408 jhTa4KwY4B9TFMK7AiYmbFKE0eX/wvu69kFMQ2o3OJTnMOlr1WHiPYOmNO6C5hOh
409 CgQIX+vNomZakEIwIgYIKoUDBwEBAQEwFgYHKoUDAgINADALBgkqhQMHAQIFAQEw
410 gYwwgYkwWzBWMSkwJwYJKoZIhvcNAQkBFhpHb3N0UjM0MTAtMjAxMkBleGFtcGxl
411 LmNvbTEpMCcGA1UEAxMgR29zdFIzNDEwLTIwMTIgMjU2IGJpdHMgZXhjaGFuZ2UC
412 AQEEKjAoBCCNhrZOr7x2fsjjQAeDMv/tSoNRQSSQzzxgqdnYxJ3fIAQEgYLqVDA6
413 BgkqhkiG9w0BBwEwHwYGKoUDAgIVMBUECHVmR/S+hlYiBgkqhQMHAQIFAQGADEI9
416 prv_key_our = hexdec("BFCF1D623E5CDD3032A7C6EABB4A923C46E43D640FFEAAF2C3ED39A8FA399924")[::-1]
418 def keker(curve, prv, pub, ukm):
419 return kek_34102012256(
430 "id-GostR3410-2001-CryptoPro-XchA-ParamSet",
436 content_info_raw = b64decode("""
437 MIIBzAYJKoZIhvcNAQcDoIIBvTCCAbkCAQIxggF2oYIBcgIBA6CBraGBqjAhBggq
438 hQMHAQEBAjAVBgkqhQMHAQIBAgIGCCqFAwcBAQIDA4GEAASBgCB0nQy/Ljva/mRj
439 w6o+eDKIvnxwYIQB5XCHhZhCpHNZiWcFxFpYXZLWRPKifOxV7NStvqGE1+fkfhBe
440 btkQu0tdC1XL3LO2Cp/jX16XhW/IP5rKV84qWr1Owy/6tnSsNRb+ez6IttwVvaVV
441 pA6ONFy9p9gawoC8nitvAVJkWW0PoQoECDVfxzxgMTAHMCIGCCqFAwcBAQECMBYG
442 ByqFAwICDQAwCwYJKoUDBwECBQEBMIGMMIGJMFswVjEpMCcGCSqGSIb3DQEJARYa
443 R29zdFIzNDEwLTIwMTJAZXhhbXBsZS5jb20xKTAnBgNVBAMTIEdvc3RSMzQxMC0y
444 MDEyIDUxMiBiaXRzIGV4Y2hhbmdlAgEBBCowKAQg8C/OcxRR0Uq8nDjHrQlayFb3
445 WFUZEnEuAKcuG6dTOawEBLhi9hIwOgYJKoZIhvcNAQcBMB8GBiqFAwICFTAVBAiD
446 1wH+CX6CwgYJKoUDBwECBQEBgAzUvQI4H2zRfgNgdlY=
448 prv_key_our = hexdec("3FC01CDCD4EC5F972EB482774C41E66DB7F380528DFE9E67992BA05AEE462435757530E641077CE587B976C8EEB48C48FD33FD175F0C7DE6A44E014E6BCB074B")[::-1]
450 def keker(curve, prv, pub, ukm):
451 return kek_34102012256(
454 pub_unmarshal(pub, mode=2012),
461 "id-tc26-gost-3410-12-512-paramSetB",