# coding: utf-8 # PyGOST -- Pure Python GOST cryptographic functions library # Copyright (C) 2015-2020 Sergey Matveev # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, version 3 of the License. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . from base64 import b64decode from unittest import skipIf from unittest import TestCase from pygost.gost28147 import cfb_decrypt from pygost.gost3410 import CURVES from pygost.gost3410 import prv_unmarshal from pygost.gost3410 import pub_unmarshal from pygost.gost3410 import public_key from pygost.gost3410 import verify from pygost.gost3410_vko import kek_34102012256 from pygost.gost3410_vko import ukm_unmarshal from pygost.gost34112012256 import GOST34112012256 from pygost.gost34112012512 import GOST34112012512 from pygost.utils import hexdec from pygost.wrap import unwrap_cryptopro from pygost.wrap import unwrap_gost try: from pyderasn import DecodePathDefBy from pyderasn import OctetString from pygost.asn1schemas.cms import ContentInfo from pygost.asn1schemas.oids import id_envelopedData from pygost.asn1schemas.oids import id_tc26_gost3410_2012_256 from pygost.asn1schemas.oids import id_tc26_gost3410_2012_512 except ImportError: pyderasn_exists = False else: pyderasn_exists = True @skipIf(not pyderasn_exists, "PyDERASN dependency is required") class TestSigned(TestCase): """SignedData test vectors from "Использование алгоритмов ГОСТ 28147-89, ГОСТ Р 34.11 и ГОСТ Р 34.10 в криптографических сообщениях формата CMS" (TK26CMS.pdf) """ def process_cms( self, content_info_raw, prv_key_raw, curve_name, hasher, mode, ): content_info, tail = ContentInfo().decode(content_info_raw) self.assertSequenceEqual(tail, b"") self.assertIsNotNone(content_info["content"].defined) _, signed_data = content_info["content"].defined self.assertEqual(len(signed_data["signerInfos"]), 1) curve = CURVES[curve_name] self.assertTrue(verify( curve, public_key(curve, prv_unmarshal(prv_key_raw)), hasher(bytes(signed_data["encapContentInfo"]["eContent"])).digest()[::-1], bytes(signed_data["signerInfos"][0]["signature"]), mode=mode, )) def test_256(self): content_info_raw = b64decode(""" MIIBBQYJKoZIhvcNAQcCoIH3MIH0AgEBMQ4wDAYIKoUDBwEBAgIFADAbBgkqhkiG 9w0BBwGgDgQMVGVzdCBtZXNzYWdlMYHBMIG+AgEBMFswVjEpMCcGCSqGSIb3DQEJ ARYaR29zdFIzNDEwLTIwMTJAZXhhbXBsZS5jb20xKTAnBgNVBAMTIEdvc3RSMzQx MC0yMDEyICgyNTYgYml0KSBleGFtcGxlAgEBMAwGCCqFAwcBAQICBQAwDAYIKoUD BwEBAQEFAARAkptb2ekZbC94FaGDQeP70ExvTkXtOY9zgz3cCco/hxPhXUVo3eCx VNwDQ8enFItJZ8DEX4blZ8QtziNCMl5HbA== """) prv_key_raw = hexdec("BFCF1D623E5CDD3032A7C6EABB4A923C46E43D640FFEAAF2C3ED39A8FA399924")[::-1] self.process_cms( content_info_raw, prv_key_raw, "id-GostR3410-2001-CryptoPro-XchA-ParamSet", GOST34112012256, 2001, ) def test_512(self): content_info_raw = b64decode(""" MIIBSQYJKoZIhvcNAQcCoIIBOjCCATYCAQExDjAMBggqhQMHAQECAwUAMBsGCSqG SIb3DQEHAaAOBAxUZXN0IG1lc3NhZ2UxggECMIH/AgEBMFswVjEpMCcGCSqGSIb3 DQEJARYaR29zdFIzNDEwLTIwMTJAZXhhbXBsZS5jb20xKTAnBgNVBAMTIEdvc3RS MzQxMC0yMDEyICg1MTIgYml0KSBleGFtcGxlAgEBMAwGCCqFAwcBAQIDBQAwDAYI KoUDBwEBAQIFAASBgFyVohNhMHUi/+RAF3Gh/cC7why6v+4jPWVlx1TYlXtV8Hje hI2Y+rP52/LO6EUHG/XcwCBbUxmRWsbUSRRBAexmaafkSdvv2FFwC8kHOcti+UPX PS+KRYxT8vhcsBLWWxDkc1McI7aF09hqtED36mQOfACzeJjEoUjALpmJob1V """) prv_key_raw = hexdec("3FC01CDCD4EC5F972EB482774C41E66DB7F380528DFE9E67992BA05AEE462435757530E641077CE587B976C8EEB48C48FD33FD175F0C7DE6A44E014E6BCB074B")[::-1] self.process_cms( content_info_raw, prv_key_raw, "id-tc26-gost-3410-12-512-paramSetB", GOST34112012512, 2012, ) @skipIf(not pyderasn_exists, "PyDERASN dependency is required") class TestDigested(TestCase): """DigestedData test vectors from "Использование алгоритмов ГОСТ 28147-89, ГОСТ Р 34.11 и ГОСТ Р 34.10 в криптографических сообщениях формата CMS" (TK26CMS.pdf) """ def process_cms(self, content_info_raw, hasher): content_info, tail = ContentInfo().decode(content_info_raw) self.assertSequenceEqual(tail, b"") self.assertIsNotNone(content_info["content"].defined) _, digested_data = content_info["content"].defined self.assertSequenceEqual( hasher(bytes(digested_data["encapContentInfo"]["eContent"])).digest(), bytes(digested_data["digest"]), ) def test_256(self): content_info_raw = b64decode(""" MIGdBgkqhkiG9w0BBwWggY8wgYwCAQAwDAYIKoUDBwEBAgIFADBXBgkqhkiG9w0B BwGgSgRI0eUg4uXy8OgsINHy8Ojh7uboIOLt8/boLCDi5f7y+iDxIOzu8P8g8fLw 5evg7Ogg7eAg9fDg4fD7/yDv6/rq+yDI4+7w5eL7BCCd0v5OkECeXah/U5dtdAWw wMrGKPxmmnQdUAY8VX6PUA== """) self.process_cms(content_info_raw, GOST34112012256) def test_512(self): content_info_raw = b64decode(""" MIG0BgkqhkiG9w0BBwWggaYwgaMCAQAwDAYIKoUDBwEBAgMFADBOBgkqhkiG9w0B BwGgQQQ/MDEyMzQ1Njc4OTAxMjM0NTY3ODkwMTIzNDU2Nzg5MDEyMzQ1Njc4OTAx MjM0NTY3ODkwMTIzNDU2Nzg5MDEyBEAbVNAaSvW51cw9htaNKFRisZq8JHUiLzXA hRIr5Lof+gCtMPh2ezqCOExldPAkwxHipIEzKwjvf0F5eJHBZG9I """) self.process_cms(content_info_raw, GOST34112012512) @skipIf(not pyderasn_exists, "PyDERASN dependency is required") class TestEnvelopedKTRI(TestCase): """EnvelopedData KeyTransRecipientInfo-based test vectors from "Использование алгоритмов ГОСТ 28147-89, ГОСТ Р 34.11 и ГОСТ Р 34.10 в криптографических сообщениях формата CMS" (TK26CMS.pdf) """ def process_cms( self, content_info_raw, prv_key_our, curve_name, keker, plaintext_expected, ): sbox = "id-tc26-gost-28147-param-Z" content_info, tail = ContentInfo().decode(content_info_raw, ctx={ "defines_by_path": [ ( ( "content", DecodePathDefBy(id_envelopedData), "recipientInfos", any, "ktri", "encryptedKey", DecodePathDefBy(spki_algorithm), "transportParameters", "ephemeralPublicKey", "algorithm", "algorithm", ), ( ( ("..", "subjectPublicKey"), { id_tc26_gost3410_2012_256: OctetString(), id_tc26_gost3410_2012_512: OctetString(), }, ), ), ) for spki_algorithm in ( id_tc26_gost3410_2012_256, id_tc26_gost3410_2012_512, ) ], }) self.assertSequenceEqual(tail, b"") self.assertIsNotNone(content_info["content"].defined) _, enveloped_data = content_info["content"].defined eci = enveloped_data["encryptedContentInfo"] ri = enveloped_data["recipientInfos"][0] self.assertIsNotNone(ri["ktri"]["encryptedKey"].defined) _, encrypted_key = ri["ktri"]["encryptedKey"].defined ukm = bytes(encrypted_key["transportParameters"]["ukm"]) spk = encrypted_key["transportParameters"]["ephemeralPublicKey"]["subjectPublicKey"] self.assertIsNotNone(spk.defined) _, pub_key_their = spk.defined curve = CURVES[curve_name] kek = keker(curve, prv_key_our, bytes(pub_key_their), ukm) key_wrapped = bytes(encrypted_key["sessionEncryptedKey"]["encryptedKey"]) mac = bytes(encrypted_key["sessionEncryptedKey"]["macKey"]) cek = unwrap_cryptopro(kek, ukm + key_wrapped + mac, sbox=sbox) ciphertext = bytes(eci["encryptedContent"]) self.assertIsNotNone(eci["contentEncryptionAlgorithm"]["parameters"].defined) _, encryption_params = eci["contentEncryptionAlgorithm"]["parameters"].defined iv = bytes(encryption_params["iv"]) self.assertSequenceEqual( cfb_decrypt(cek, ciphertext, iv, sbox=sbox, mesh=True), plaintext_expected, ) def test_256(self): content_info_raw = b64decode(""" MIIKGgYJKoZIhvcNAQcDoIIKCzCCCgcCAQAxggE0MIIBMAIBADBbMFYxKTAnBgkq hkiG9w0BCQEWGkdvc3RSMzQxMC0yMDEyQGV4YW1wbGUuY29tMSkwJwYDVQQDEyBH b3N0UjM0MTAtMjAxMiAyNTYgYml0cyBleGNoYW5nZQIBATAfBggqhQMHAQEBATAT BgcqhQMCAiQABggqhQMHAQECAgSBrDCBqTAoBCCVJxUMdbKRzCJ5K1NWJIXnN7Ul zaceeFlblA2qH4wZrgQEsHnIG6B9BgkqhQMHAQIFAQGgZjAfBggqhQMHAQEBATAT BgcqhQMCAiQABggqhQMHAQECAgNDAARAFoqoLg1lV780co6GdwtjLtS4KCXv9VGR sd7PTPHCT/5iGbvOlKNW2I8UhayJ0dv7RV7Nb1lDIxPxf4Mbp2CikgQI1b4+WpGE sfQwggjIBgkqhkiG9w0BBwEwHwYGKoUDAgIVMBUECHYNkdvFoYdyBgkqhQMHAQIF AQGAggiYvFFpJKILAFdXjcdLLYv4eruXzL/wOXL8y9HHIDMbSzV1GM033J5Yt/p4 H6JYe1L1hjAfE/BAAYBndof2sSUxC3/I7xj+b7M8BZ3GYPqATPtR4aCQDK6z91lx nDBAWx0HdsStT5TOj/plMs4zJDadvIJLfjmGkt0Np8FSnSdDPOcJAO/jcwiOPopg +Z8eIuZNmY4seegTLue+7DGqvqi1GdZdMnvXBFIKc9m5DUsC7LdyboqKImh6giZE YZnxb8a2naersPylhrf+zp4Piwwv808yOrD6LliXUiH0RojlmuaQP4wBkb7m073h MeAWEWSvyXzOvOOuFST/hxPEupiTRoHPUdfboJT3tNpizUhE384SrvXHpwpgivQ4 J0zF2/uzTBEupXR6dFC9rTHAK3X79SltqBNnHyIXBwe+BMqTmKTfnlPVHBUfTXZg oakDItwKwa1MBOZeciwtUFza+7o9FZhKIandb848chGdgd5O9ksaXvPJDIPxQjZd EBVhnXLlje4TScImwTdvYB8GsI8ljKb2bL3FjwQWGbPaOjXc2D9w+Ore8bk1E4TA ayhypU7MH3Mq1EBZ4j0iROEFBQmYRZn8vAKZ0K7aPxcDeAnKAJxdokqrMkLgI6WX 0glh/3Cs9dI+0D2GqMSygauKCD0vTIo3atkEQswDZR4pMx88gB4gmx7iIGrc/ZXs ZqHI7NQqeKtBwv2MCIj+/UTqdYDqbaniDwdVS8PE9nQnNU4gKffq3JbT+wRjJv6M Dr231bQHgAsFTVKbZgoL4gj4V7bLQUmW06+W1BQUJ2+Sn7fp+Xet9Xd3cGtNdxzQ zl6sGuiOlTNe0bfKP7QIMC7ekjflLBx8nwa2GZG19k3O0Z9JcDdN/kz6bGpPNssY AIOkTvLQjxIM9MhRqIv6ee0rowTWQPwXJP7yHApop4XZvVX6h9gG2gazqbDej2lo tAcfRAKj/LJ/bk9+OlNXOXVCKnwE1kXxZDsNJ51GdCungC56U/hmd3C1RhSLTpEc FlOWgXKNjbn6SQrlq1yASKKr80T0fL7PFoYwKZoQbKMAVZQC1VBWQltHkEzdL73x FwgZULNfdflF8sEhFC/zsVqckD/UnhzJz88PtCslMArJ7ntbEF1GzsSSfRfjBqnl kSUreE5XX6+c9yp5HcJBiMzp6ZqqWWaED5Y5xp1hZeYjuKbDMfY4tbWVc7Hy0dD2 KGfZLp5umqvPNs7aVBPmvuxtrnxcJlUB8u2HoiHc6/TuhrpaopYGBhxL9+kezuLR v18nsAg8HOmcCNUS46NXQj/Mdpx8W+RsyzCQkJjieT/Yed20Zxq1zJoXIS0xAaUH TdE2dWqiT6TGlh/KQYk3KyFPNnDmzJm04a2VWIwpp4ypXyxrB7XxnVY6Q4YBYbZs FycxGjJWqj7lwc+lgZ8YV2WJ4snEo2os8SsA2GFWcUMiVTHDnEJvphDHmhWsf26A bbRqwaRXNjhj05DamTRsczgvfjdl1pk4lJYE4ES3nixtMe4s1X8nSmM4KvfyVDul J8uTpw1ZFnolTdfEL63BSf4FREoEqKB7cKuD7cpn7Rg4kRdM0/BLZGuxkH+pGMsI Bb8LecUWyjGsI6h74Wz/U2uBrfgdRqhR+UsfB2QLaRgM6kCXZ4vM0auuzBViFCwK tYMHzZWWz8gyVtJ0mzt1DrHCMx4pTS4yOhv4RkXBS/rub4VhVIsOGOGar5ZYtH47 uBbdw3NC05JIFM7lI31d0s1fvvkTUR7eaqRW+SnR2c2oHpWlSO+Q0mrzx+vvOTdj xa713YtklBvyUUQr2SIbsXGpFnwjn+sXK1onAavp/tEax8sNZvxg5yeseFcWn+gD 4rjk9FiSd1wp4fTDQFJ19evqruqKlq6k18l/ZAyUcEbIWSz2s3HfAAoAQyFPX1Q2 95gVhRRw6lP4S6VPCfn/f+5jV4TcT6W/giRaHIk9Hty+g8bx1bFXaKVkQZ5R2Vmk qsZ65ZgCrYQJmcErPmYybvP7NBeDS4AOSgBQAGMQF4xywdNm6bniWWo3N/xkFv32 /25x8okGgD8QcYKmhzieLSSzOvM/exB14RO84YZOkZzm01Jll0nac/LEazKoVWbn 0VdcQ7pYEOqeMBXipsicNVYA/uhonp6op9cpIVYafPr0npCGwwhwcRuOrgSaZyCn VG2tPkEOv9LKmUbhnaDA2YUSzOOjcCpIVvTSBnUEiorYpfRYgQLrbcd2qhVvNCLX 8ujZfMqXQXK8n5BK8JxNtczvaf+/2dfv1dQl0lHEAQhbNcsJ0t5GPhsSCC5oMBJl ZJuOEO/8PBWKEnMZOM+Dz7gEgsBhGyMFFrKpiwQRpyEshSD2QpnK6Lp0t5C8Za2G lhyZsEr+93AYOb5mm5+z02B4Yq9+RpepvjoqVeq/2uywZNq9MS98zVgNsmpryvTZ 3HJHHB20u2jcVu0G3Nhiv22lD70JWCYFAOupjgVcUcaBxjxwUMAvgHg7JZqs6mC6 tvTKwQ4NtDhoAhARlDeWSwCWb2vPH2H7Lmqokif1RfvJ0hrLzkJuHdWrzIYzXpPs +v9XJxLvbdKi9KU1Halq9S8dXT1fvs9DJTpUV/KW7QkRsTQJhTJBkQ07WUSJ4gBS Qp4efxSRNIfMj7DR6qLLf13RpIPTJO9/+gNuBIFcupWVfUL7tJZt8Qsf9eGwZfP+ YyhjC8AyZjH4/9RzLHSjuq6apgw3Mzw0j572Xg6xDLMK8C3Tn/vrLOvAd96b9MkF 3+ZHSLW3IgOiy+1jvK/20CZxNWc+pey8v4zji1hI17iohsipX/uZKRxhxF6+Xn2R UQp6qoxHAspNXgWQ57xg7C3+gmi4ciVr0fT9pg54ogcowrRH+I6wd0EpeWPbzfnQ pRmMVN+YtRsrEHwH3ToQ/i4vrtgA+eONuKT2uKZFikxA+VNmeeGdhkgqETMihQ== """) prv_key_our = hexdec("BFCF1D623E5CDD3032A7C6EABB4A923C46E43D640FFEAAF2C3ED39A8FA399924")[::-1] def keker(curve, prv, pub, ukm): return kek_34102012256( curve, prv_unmarshal(prv), pub_unmarshal(pub), ukm_unmarshal(ukm), mode=2001, ) self.process_cms( content_info_raw, prv_key_our, "id-GostR3410-2001-CryptoPro-XchA-ParamSet", keker, b"Test data to encrypt.\n" * 100, ) def test_512(self): content_info_raw = b64decode(""" MIIB0gYJKoZIhvcNAQcDoIIBwzCCAb8CAQAxggF8MIIBeAIBADBbMFYxKTAnBgkq hkiG9w0BCQEWGkdvc3RSMzQxMC0yMDEyQGV4YW1wbGUuY29tMSkwJwYDVQQDEyBH b3N0UjM0MTAtMjAxMiA1MTIgYml0cyBleGNoYW5nZQIBATAhBggqhQMHAQEBAjAV BgkqhQMHAQIBAgIGCCqFAwcBAQIDBIHyMIHvMCgEIIsYzbVLn33aLinQ7SLNA7y+ Lrm02khqDCfXrNS9iiMhBATerS8zoIHCBgkqhQMHAQIFAQGggaowIQYIKoUDBwEB AQIwFQYJKoUDBwECAQICBggqhQMHAQECAwOBhAAEgYAYiTVLKpSGaAvjJEDQ0hdK qR/jek5Q9Q2pXC+NkOimQh7dpCi+wcaHlPcBk96hmpnOFvLaiokX8V6jqtBl5gdk M40kOXv8kcDdTzEVKA/ZLxA8xanL+gTD6ZjaPsUu06nsA2MoMBWcHLUzueaP3bGT /yHTV+Za5xdcQehag/lNBgQIvCw4uUl0XC4wOgYJKoZIhvcNAQcBMB8GBiqFAwIC FTAVBAj+1QzaXaN9FwYJKoUDBwECBQEBgAyK54euw0sHhEVEkA0= """) prv_key_our = hexdec("3FC01CDCD4EC5F972EB482774C41E66DB7F380528DFE9E67992BA05AEE462435757530E641077CE587B976C8EEB48C48FD33FD175F0C7DE6A44E014E6BCB074B")[::-1] def keker(curve, prv, pub, ukm): return kek_34102012256( curve, prv_unmarshal(prv), pub_unmarshal(pub, mode=2012), ukm_unmarshal(ukm), ) self.process_cms( content_info_raw, prv_key_our, "id-tc26-gost-3410-12-512-paramSetB", keker, b"Test message", ) @skipIf(not pyderasn_exists, "PyDERASN dependency is required") class TestEnvelopedKARI(TestCase): """EnvelopedData KeyAgreeRecipientInfo-based test vectors from "Использование алгоритмов ГОСТ 28147-89, ГОСТ Р 34.11 и ГОСТ Р 34.10 в криптографических сообщениях формата CMS" (TK26CMS.pdf) """ def process_cms( self, content_info_raw, prv_key_our, curve_name, keker, plaintext_expected, ): sbox = "id-tc26-gost-28147-param-Z" content_info, tail = ContentInfo().decode(content_info_raw, ctx={ "defines_by_path": [ ( ( "content", DecodePathDefBy(id_envelopedData), "recipientInfos", any, "kari", "originator", "originatorKey", "algorithm", "algorithm", ), ( ( ("..", "publicKey"), { id_tc26_gost3410_2012_256: OctetString(), id_tc26_gost3410_2012_512: OctetString(), }, ), ), ) for _ in ( id_tc26_gost3410_2012_256, id_tc26_gost3410_2012_512, ) ], }) self.assertSequenceEqual(tail, b"") self.assertIsNotNone(content_info["content"].defined) _, enveloped_data = content_info["content"].defined eci = enveloped_data["encryptedContentInfo"] kari = enveloped_data["recipientInfos"][0]["kari"] self.assertIsNotNone(kari["originator"]["originatorKey"]["publicKey"].defined) _, pub_key_their = kari["originator"]["originatorKey"]["publicKey"].defined ukm = bytes(kari["ukm"]) rek = kari["recipientEncryptedKeys"][0] curve = CURVES[curve_name] kek = keker(curve, prv_key_our, bytes(pub_key_their), ukm) self.assertIsNotNone(rek["encryptedKey"].defined) _, encrypted_key = rek["encryptedKey"].defined key_wrapped = bytes(encrypted_key["encryptedKey"]) mac = bytes(encrypted_key["macKey"]) cek = unwrap_gost(kek, ukm + key_wrapped + mac, sbox=sbox) ciphertext = bytes(eci["encryptedContent"]) self.assertIsNotNone(eci["contentEncryptionAlgorithm"]["parameters"].defined) _, encryption_params = eci["contentEncryptionAlgorithm"]["parameters"].defined iv = bytes(encryption_params["iv"]) self.assertSequenceEqual( cfb_decrypt(cek, ciphertext, iv, sbox=sbox, mesh=True), plaintext_expected, ) def test_256(self): content_info_raw = b64decode(""" MIIBhgYJKoZIhvcNAQcDoIIBdzCCAXMCAQIxggEwoYIBLAIBA6BooWYwHwYIKoUD BwEBAQEwEwYHKoUDAgIkAAYIKoUDBwEBAgIDQwAEQPAdWM4pO38iZ49UjaXQpq+a jhTa4KwY4B9TFMK7AiYmbFKE0eX/wvu69kFMQ2o3OJTnMOlr1WHiPYOmNO6C5hOh CgQIX+vNomZakEIwIgYIKoUDBwEBAQEwFgYHKoUDAgINADALBgkqhQMHAQIFAQEw gYwwgYkwWzBWMSkwJwYJKoZIhvcNAQkBFhpHb3N0UjM0MTAtMjAxMkBleGFtcGxl LmNvbTEpMCcGA1UEAxMgR29zdFIzNDEwLTIwMTIgMjU2IGJpdHMgZXhjaGFuZ2UC AQEEKjAoBCCNhrZOr7x2fsjjQAeDMv/tSoNRQSSQzzxgqdnYxJ3fIAQEgYLqVDA6 BgkqhkiG9w0BBwEwHwYGKoUDAgIVMBUECHVmR/S+hlYiBgkqhQMHAQIFAQGADEI9 UNjyuY+54uVcHw== """) prv_key_our = hexdec("BFCF1D623E5CDD3032A7C6EABB4A923C46E43D640FFEAAF2C3ED39A8FA399924")[::-1] def keker(curve, prv, pub, ukm): return kek_34102012256( curve, prv_unmarshal(prv), pub_unmarshal(pub), ukm_unmarshal(ukm), mode=2001, ) self.process_cms( content_info_raw, prv_key_our, "id-GostR3410-2001-CryptoPro-XchA-ParamSet", keker, b"Test message", ) def test_512(self): content_info_raw = b64decode(""" MIIBzAYJKoZIhvcNAQcDoIIBvTCCAbkCAQIxggF2oYIBcgIBA6CBraGBqjAhBggq hQMHAQEBAjAVBgkqhQMHAQIBAgIGCCqFAwcBAQIDA4GEAASBgCB0nQy/Ljva/mRj w6o+eDKIvnxwYIQB5XCHhZhCpHNZiWcFxFpYXZLWRPKifOxV7NStvqGE1+fkfhBe btkQu0tdC1XL3LO2Cp/jX16XhW/IP5rKV84qWr1Owy/6tnSsNRb+ez6IttwVvaVV pA6ONFy9p9gawoC8nitvAVJkWW0PoQoECDVfxzxgMTAHMCIGCCqFAwcBAQECMBYG ByqFAwICDQAwCwYJKoUDBwECBQEBMIGMMIGJMFswVjEpMCcGCSqGSIb3DQEJARYa R29zdFIzNDEwLTIwMTJAZXhhbXBsZS5jb20xKTAnBgNVBAMTIEdvc3RSMzQxMC0y MDEyIDUxMiBiaXRzIGV4Y2hhbmdlAgEBBCowKAQg8C/OcxRR0Uq8nDjHrQlayFb3 WFUZEnEuAKcuG6dTOawEBLhi9hIwOgYJKoZIhvcNAQcBMB8GBiqFAwICFTAVBAiD 1wH+CX6CwgYJKoUDBwECBQEBgAzUvQI4H2zRfgNgdlY= """) prv_key_our = hexdec("3FC01CDCD4EC5F972EB482774C41E66DB7F380528DFE9E67992BA05AEE462435757530E641077CE587B976C8EEB48C48FD33FD175F0C7DE6A44E014E6BCB074B")[::-1] def keker(curve, prv, pub, ukm): return kek_34102012256( curve, prv_unmarshal(prv), pub_unmarshal(pub, mode=2012), ukm_unmarshal(ukm), ) self.process_cms( content_info_raw, prv_key_our, "id-tc26-gost-3410-12-512-paramSetB", keker, b"Test message", )