devolutions-crypto 0.9.2

An abstraction layer for the cryptography used by Devolutions
Documentation
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
#pragma warning disable SA1600 // Elements should be documented
namespace Devolutions.Crypto.Tests
{
    using Microsoft.VisualStudio.TestTools.UnitTesting;

    using System;
    using System.Text;

    using Devolutions.Cryptography;
    using Devolutions.Cryptography.Argon2;
    using Devolutions.Cryptography.Signature;

    [TestClass]
    public class TestManaged
    {
        [TestMethod]
        public void ByteArrayToString()
        {
            string conversionResult = Utils.ByteArrayToUtf8String(TestData.BytesTestData);
            Assert.AreEqual(conversionResult, TestData.StringTestData);
        }

        [TestMethod]
        public void Decode()
        {
            byte[] data = Utils.DecodeFromBase64(TestData.Base64TestData);
            Assert.AreEqual(Convert.ToBase64String(data), Convert.ToBase64String(TestData.BytesTestData));
        }

        [TestMethod]
        public void Decrypt()
        {
            byte[] decryptResult = Managed.Decrypt(TestData.EncryptedData, TestData.BytesTestKey);
            string encodedByteArrayToUtf8String = Utils.ByteArrayToUtf8String(decryptResult);
            Assert.AreEqual(encodedByteArrayToUtf8String, TestData.Base64TestData);
        }

        [TestMethod]
        public void DecryptAsymmetric_Test()
        {
            byte[] encryptedData = Convert.FromBase64String("DQwCAAIAAgD5rUXkPQO55rzI69WSxtVTA43lDXougn6BxJ7evqf+Yq+SEGXZxpE49874fz/aEk39LTnh1yWnY2VNoAAqKVB5CWZryd6SSld8Sx8v");

            byte[] decryptedData = Managed.DecryptAsymmetric(encryptedData, TestData.AlicePrivateKey);

            Assert.IsTrue(decryptedData != null);
            Assert.IsTrue(Encoding.UTF8.GetString(decryptedData) == "test");
        }

        [TestMethod]
        public void DecryptWithKey()
        {
            byte[] decryptResult = Managed.DecryptWithKey(TestData.EncryptedData, TestData.BytesTestKey);
            string decryptResultString = Utils.ByteArrayToUtf8String(decryptResult);
            Assert.AreEqual(decryptResultString, TestData.Base64TestData);
        }

        [TestMethod]
        public void DecryptWithKeyAsString()
        {
            string decryptResultString = Managed.DecryptWithKeyAsUtf8String(TestData.EncryptedData, TestData.BytesTestKey);
            Assert.AreEqual(decryptResultString, TestData.Base64TestData);
        }

        [TestMethod]
        public void DecryptWithPassword2()
        {
            string encrytedDataAsBase64 = "DQwCAAAAAgDsQkLRs1I3054gNOYP7ifVSpOMFEV8vTfoMuZOWAzbMR2b1QLyIe0/NFNKr8rniijd8PxHv29N";
            string password = "testPa$$";
            byte[] decryptResult = Managed.DecryptWithPassword(encrytedDataAsBase64, password);
            string decryptResultString = Utils.ByteArrayToUtf8String(decryptResult);
            Assert.AreEqual(decryptResultString, "test Ciph3rtext");
        }

        [TestMethod]
        public void DecryptWithPassword2_5()
        {
            try
            {
                string encrytedDataAsBase64 = "DQwCAAAAAgDutPWBLPHG0+ocNw+Yzs6xygGOeOlNPOAjbYDdbJKjPRnEP8HuDN7Y3h3dCoH81Szf3tCf3mNf";
                string password = "testPa$$";
                byte[] decryptResult = Managed.DecryptWithPassword(encrytedDataAsBase64, password);
                string decryptResultString = Utils.ByteArrayToUtf8String(decryptResult);
                Assert.AreEqual(decryptResultString, "test Ciph3rtext");
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.InnerException?.Message);
                Console.WriteLine(ex.InnerException?.StackTrace);
            }
        }

        [TestMethod]
        public void DecryptWithPasswordAsString()
        {
            string encryptedDataAsBase64 = "DQwCAAAAAgCoE9Y3m06QaPSAiL2qegthcm0+zZWt4fXbdqcefkzD6y8pnWsMzLkx/32t";
            string decryptResultString = Managed.DecryptWithPasswordAsUtf8String(encryptedDataAsBase64, TestData.TestPassword);
            Assert.AreEqual(decryptResultString, TestData.StringTestData);
        }

        [TestMethod]
        public void DerivePassword()
        {
            byte[] derivedPassword = Managed.DerivePassword(TestData.Base64TestData, null, 100);
            Assert.AreEqual(Convert.ToBase64String(TestData.TestDeriveBytes), Convert.ToBase64String(derivedPassword));
        }

        [TestMethod]
        public void Encode()
        {
            string encodedArrayToBase64String = Utils.EncodeToBase64String(TestData.BytesTestData);
            Assert.AreEqual(encodedArrayToBase64String, TestData.Base64TestData);
        }

        [TestMethod]
        public void Encrypt()
        {
            byte[] base64DataAsUtf8ByteArray = Utils.StringToUtf8ByteArray(TestData.Base64TestData2);
            byte[] encryptResult = Managed.Encrypt(base64DataAsUtf8ByteArray, TestData.BytesTestKey);
            Assert.IsTrue(Utils.ValidateHeader(encryptResult, DataType.Cipher));

            byte[] decryptResult = Managed.Decrypt(encryptResult, TestData.BytesTestKey);
            var decryptResultAsUtf8String = Utils.ByteArrayToUtf8String(decryptResult);
            Assert.AreEqual(decryptResultAsUtf8String, TestData.Base64TestData2);
        }

        [TestMethod]
        public void EncryptAsymmetric_Test()
        {
            byte[] dataToEncrypt = Encoding.UTF8.GetBytes("test");

            byte[] encryptedData = Managed.EncryptAsymmetric(dataToEncrypt, TestData.AlicePublicKey);

            Assert.IsTrue(encryptedData != null);
            Assert.IsTrue(encryptedData.Length == 84);
        }

        [TestMethod]
        public void EncryptBase64WithPassword()
        {
            byte[] encryptedData = Managed.EncryptBase64WithPassword(TestData.Base64TestData, TestData.TestPassword);
            Assert.IsTrue(Utils.ValidateHeader(encryptedData, DataType.Cipher));
            byte[] decryptResult = Managed.DecryptWithPassword(encryptedData, TestData.TestPassword);
            string decryptResultString = Utils.ByteArrayToUtf8String(decryptResult);
            Assert.AreEqual(decryptResultString, TestData.StringTestData);
        }

        [TestMethod]
        public void EncryptBase64WithPasswordAsString()
        {
            string encryptResultString = Managed.EncryptBase64WithPasswordAsString(TestData.Base64TestData, TestData.TestPassword);
            string decryptResultAsUtf8String = Managed.DecryptWithPasswordAsUtf8String(encryptResultString, TestData.TestPassword);
            Assert.AreEqual(decryptResultAsUtf8String, TestData.StringTestData);
        }

        [TestMethod]
        public void EncryptWithKeyAsStringDecryptWithKeyAsString()
        {
            byte[] encodedData = Utils.StringToUtf8ByteArray(TestData.StringTestData);
            byte[] encodedPassword = Utils.StringToUtf8ByteArray(TestData.TestPassword);
            string encryptResultAsBase64String = Managed.EncryptWithKeyAsBase64String(encodedData, encodedPassword);
            string decryptResult = Managed.DecryptWithKeyAsUtf8String(encryptResultAsBase64String, encodedPassword);
            Assert.AreEqual(decryptResult, TestData.StringTestData);
        }

        [TestMethod]
        public void EncryptWithKeyDecryptWithKey()
        {
            byte[] encodedData = Utils.StringToUtf8ByteArray(TestData.StringTestData);
            byte[] encodedPassword = Utils.StringToUtf8ByteArray(TestData.TestPassword);
            byte[] encryptResultArray = Managed.EncryptWithKey(encodedData, encodedPassword);
            byte[] decryptResult = Managed.DecryptWithKey(encryptResultArray, encodedPassword);
            string decryptResultAsUtf8String = Utils.ByteArrayToUtf8String(decryptResult);
            Assert.AreEqual(decryptResultAsUtf8String, TestData.StringTestData);
        }

        [TestMethod]
        public void EncryptWithPasswordAsString()
        {
            byte[] encodedDataAsUtf8ByteArray = Utils.StringToUtf8ByteArray(TestData.StringTestData);
            string encryptResultAsBase64String = Managed.EncryptWithPasswordAsBase64String(encodedDataAsUtf8ByteArray, TestData.TestPassword);
            string decryptResultAsUtf8String = Managed.DecryptWithPasswordAsUtf8String(encryptResultAsBase64String, TestData.TestPassword);
            Assert.AreEqual(decryptResultAsUtf8String, TestData.StringTestData);
        }

        [TestMethod]
        public void EncryptWithPasswordAsStringAndDecryptWithPasswordAsString()
        {
            byte[] base64EncodedToUtf8ByteArray = Utils.StringToUtf8ByteArray(TestData.Base64TestData);
            string password = "pwd";
            string encryptResultAsBase64String = Managed.EncryptWithPasswordAsBase64String(base64EncodedToUtf8ByteArray, password, 100);
            string decryptionResultAsUtf8String = Managed.DecryptWithPasswordAsUtf8String(encryptResultAsBase64String, password, 100);
            Assert.AreEqual(decryptionResultAsUtf8String, TestData.Base64TestData);
        }

        [TestMethod]
        public void GenerateKey()
        {
            byte[] firstKey = Managed.GenerateKey(32);
            Assert.AreEqual(32, firstKey.Length);
            byte[] secondKey = Managed.GenerateKey(32);
            Assert.AreNotEqual(firstKey, secondKey);
        }

        [TestMethod]
        public void GenerateKeyPair()
        {
            KeyPair bob = Managed.GenerateKeyPair();
            KeyPair alice = Managed.GenerateKeyPair();
            byte[] bobMix = Managed.MixKeyExchange(bob.PrivateKey, alice.PublicKey);
            byte[] aliceMix = Managed.MixKeyExchange(alice.PrivateKey, bob.PublicKey);
            Assert.AreEqual(Convert.ToBase64String(bobMix), Convert.ToBase64String(aliceMix));
        }

        [TestMethod]
        public void GenerateSigningKeyPair()
        {
            SigningKeyPair keypair = Managed.GenerateSigningKeyPair();
            byte[] keypairRaw = keypair.ToByteArray();

            Assert.AreEqual(keypairRaw.Length, 72);
        }

        [TestMethod]
        public void Sign()
        {
            SigningKeyPair keypair = SigningKeyPair.FromByteArray(Convert.FromBase64String(TestData.SigningKeyPairb64));
            byte[] data = System.Text.Encoding.UTF8.GetBytes(TestData.SignTesting);

            byte[] signature = Managed.Sign(data, keypair);

            Assert.AreEqual(Convert.ToBase64String(signature), TestData.SignedTestingb64);
        }

        [TestMethod]
        public void VerifySignature()
        {
            byte[] signature = Convert.FromBase64String(TestData.SignedTestingb64);

            SigningKeyPair keypair = SigningKeyPair.FromByteArray(Convert.FromBase64String(TestData.SigningKeyPairb64));
            SigningPublicKey pubkey = SigningPublicKey.FromByteArray(Convert.FromBase64String(TestData.SigningPublicKeyb64));

            bool res = Managed.VerifySignature(System.Text.Encoding.UTF8.GetBytes(TestData.SignTesting), pubkey, signature);

            Assert.AreEqual(res, true);
        }

        [TestMethod]
        public void VerifySignature_FailBadData()
        {
            byte[] signature = Convert.FromBase64String(TestData.SignedTestingb64);

            SigningKeyPair keypair = SigningKeyPair.FromByteArray(Convert.FromBase64String(TestData.SigningKeyPairb64));
            SigningPublicKey pubkey = SigningPublicKey.FromByteArray(Convert.FromBase64String(TestData.SigningPublicKeyb64));

            bool res = Managed.VerifySignature(System.Text.Encoding.UTF8.GetBytes("bad data"), pubkey, signature);

            Assert.AreEqual(res, false);
        }

        [TestMethod]
        public void VerifySignature_FailBadKey()
        {
            byte[] signature = Convert.FromBase64String(TestData.SignedTestingb64);

            SigningKeyPair keypair = Managed.GenerateSigningKeyPair();
            SigningPublicKey pubkey = keypair.GetPublicKey();

            bool res = Managed.VerifySignature(System.Text.Encoding.UTF8.GetBytes(TestData.SignTesting), pubkey, signature);

            Assert.AreEqual(res, false);
        }

        [TestMethod]
        public void VerifySignature_FailBadSignature()
        {
            SigningKeyPair keypair = Managed.GenerateSigningKeyPair();
            byte[] signature = Managed.Sign(System.Text.Encoding.UTF8.GetBytes(TestData.SignTesting), keypair);

            SigningPublicKey pubkey = SigningPublicKey.FromByteArray(Convert.FromBase64String(TestData.SigningPublicKeyb64));

            bool res = Managed.VerifySignature(System.Text.Encoding.UTF8.GetBytes(TestData.SignTesting), pubkey, signature);

            Assert.AreEqual(res, false);
        }

        [TestMethod]
        public void GenerateSharedKey()
        {
            const int nbShares = 5;
            const int secretLength = 10;
            const int threshold = 3;
            var result = Managed.GenerateSharedKey(nbShares, threshold, secretLength);
            Assert.IsTrue(result != null && result.Length == 5 && result[0].Length == 20);
        }

        [TestMethod]
        public void GetDecodedLength()
        {
            int bufferDecodedLength = Utils.GetDecodedBase64StringLength(TestData.Base64TestData);
            Assert.AreEqual(bufferDecodedLength, 3);
        }

        [TestMethod]
        public void GetDefaultArgon2ParametersSizeNative_Default()
        {
            Argon2Parameters defaultArgon2Parameters = Managed.GetDefaultArgon2Parameters();

            Assert.IsTrue(defaultArgon2Parameters != null);
            Assert.IsTrue(defaultArgon2Parameters.Memory == 4096);
        }

        [TestMethod]
        public void GetEncodedLength()
        {
            int stringEncodedLength = Utils.GetEncodedBase64StringLength(TestData.BytesTestData);
            Assert.AreEqual(stringEncodedLength, 4);
        }

        [TestMethod]
        public void HashPassword()
        {
            byte[] firstHash = Managed.HashPassword(TestData.BytesTestKey);
            byte[] secondHash = Managed.HashPassword(TestData.BytesTestData);

            Assert.IsTrue(Managed.VerifyPassword(TestData.BytesTestKey, firstHash));
            Assert.IsFalse(Managed.VerifyPassword(secondHash, firstHash));
        }

        [TestMethod]
        public void JoinShares()
        {
            var shares = GetSharesKeys();
            var result = Managed.JoinShares(shares);
            var val = Utils.ByteArrayToUtf8String(result);
            Assert.IsTrue(result != null && result.Length == 10);

            var shares2 = GetSharesKeys2();
            var result2 = Managed.JoinShares(shares2);
            var val2 = Utils.ByteArrayToUtf8String(result2);

            Assert.IsTrue(result2 != null && result2.Length == 10);
            Assert.AreEqual(val, val2);
        }

        [TestMethod]
        public void MixKeyExchange()
        {
            byte[] bobMix = Managed.MixKeyExchange(TestData.BobPrivateKey, TestData.AlicePublicKey);
            byte[] aliceMix = Managed.MixKeyExchange(TestData.AlicePrivateKey, TestData.BobPublicKey);
            Assert.AreEqual(Convert.ToBase64String(bobMix), Convert.ToBase64String(aliceMix));
        }

        [TestMethod]
        public void StringToByteArray()
        {
            byte[] dataEncodedToUtf8ByteArray = Utils.StringToUtf8ByteArray(TestData.StringTestData);
            Assert.AreEqual(Convert.ToBase64String(dataEncodedToUtf8ByteArray), Convert.ToBase64String(TestData.BytesTestData));
        }

        [TestMethod]
        public void ToBase64String()
        {
            string dataEncodedToBase64String = Utils.EncodeToBase64String(TestData.BytesTestData);
            Assert.AreEqual(dataEncodedToBase64String, TestData.Base64TestData);
        }

        [TestMethod]
        public void VerifyPassword()
        {
            Assert.IsTrue(Managed.VerifyPassword(TestData.BytesTestKey, TestData.TestHash));
        }

        private static byte[][] GetSharesKeys()
        {
            const int nbShares = 3;
            var shares = new byte[nbShares][];

            var array0 = new byte[] { 0x0d, 0x0c, 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, 0x03, 0x01, 0x80, 0xa4, 0x08, 0x4a, 0xbb, 0xfb, 0x0e, 0x97, 0xdc, 0xa8 };
            shares[0] = array0;
            var array2 = new byte[] { 0x0d, 0x0c, 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, 0x03, 0x03, 0xd6, 0xa9, 0x57, 0x9d, 0xda, 0xac, 0x41, 0x30, 0x57, 0x76 };
            shares[1] = array2;
            var array4 = new byte[] { 0x0d, 0x0c, 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, 0x03, 0x05, 0xc3, 0x84, 0x27, 0x69, 0xe7, 0x13, 0xc0, 0x04, 0xec, 0x5c };
            shares[2] = array4;

            return shares;
        }

        private static byte[][] GetSharesKeys2()
        {
            const int nbShares = 3;
            var shares = new byte[nbShares][];

            var array1 = new byte[] { 0x0d, 0x0c, 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, 0x03, 0x02, 0x84, 0x61, 0x49, 0x6a, 0xbe, 0xc8, 0xe2, 0xf5, 0x71, 0x30 };
            shares[0] = array1;
            var array2 = new byte[] { 0x0d, 0x0c, 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, 0x03, 0x03, 0xd6, 0xa9, 0x57, 0x9d, 0xda, 0xac, 0x41, 0x30, 0x57, 0x76 };
            shares[1] = array2;
            var array3 = new byte[] { 0x0d, 0x0c, 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, 0x03, 0x04, 0x91, 0x4c, 0x39, 0x9e, 0x83, 0x77, 0x63, 0xc1, 0xca, 0x1a };
            shares[2] = array3;

            return shares;
        }
    }
}
#pragma warning restore SA1600 // Elements should be documented