-
-
Notifications
You must be signed in to change notification settings - Fork 5
/
Monocypher.cs
540 lines (508 loc) · 20.7 KB
/
Monocypher.cs
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
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
using System;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Text;
namespace Monocypher
{
/// <summary>
/// Static class containing all cryptographic functions.
/// </summary>
public static partial class Monocypher
{
private static readonly char[] HexBytes = new char[16] { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
private const string MonocypherDll = "monocypher_native";
#if !NETSTANDARD2_0
// size_t in NET5.0 is relying on nint
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
public readonly partial struct size_t : IEquatable<size_t>
{
public size_t(nint value) => this.Value = value;
public readonly nint Value;
public bool Equals(size_t other) => Value.Equals(other.Value);
public override bool Equals(object obj) => obj is size_t other && Equals(other);
public override int GetHashCode() => Value.GetHashCode();
public override string ToString() => Value.ToString();
public static implicit operator nint(size_t from) => from.Value;
public static implicit operator size_t(nint from) => new size_t(from);
public static bool operator ==(size_t left, size_t right) => left.Equals(right);
public static bool operator !=(size_t left, size_t right) => !left.Equals(right);
}
#endif
/// <summary>
/// A native int size (e.g 8 bytes for a 64bit processor, 4 bytes for a 32bit processor).
/// </summary>
public partial struct size_t
{
public static explicit operator int(size_t value)
{
return (int)value.Value;
}
public static implicit operator size_t(int value)
{
#if !NETSTANDARD2_0
return new size_t(value);
#else
return new size_t(new IntPtr(value));
#endif
}
}
/// <summary>
/// Converts the input span to hexadecimal bytes representation (e.g "0x12, 0xaf, 0x56...")
/// </summary>
/// <param name="buffer">The buffer to convert to hex bytes.</param>
/// <param name="builder">The builder to received hexadecimal bytes.</param>
public static void ToHexBytes(this ReadOnlySpan<byte> buffer, StringBuilder builder)
{
for (int i = 0; i < buffer.Length; i++)
{
if (i > 0) builder.Append(", ");
builder.Append("0x");
AppendByteToHex(builder, buffer[i]);
}
}
/// <summary>
/// Converts the input span to hexadecimal bytes representation (e.g "0x12, 0xaf, 0x56...")
/// </summary>
/// <param name="buffer">The buffer to convert to hex bytes.</param>
/// <returns>A string representation with hexadecimal bytes from the input span buffer.</returns>
public static string ToHexBytes(this ReadOnlySpan<byte> buffer)
{
var builder = new StringBuilder();
ToHexBytes(buffer, builder);
return builder.ToString();
}
/// <summary>
/// Converts the input span to hexadecimal bytes representation (e.g "0x12, 0xaf, 0x56...")
/// </summary>
/// <param name="buffer">The buffer to convert to hex bytes.</param>
/// <param name="builder">The builder to received hexadecimal bytes.</param>
public static void ToHexBytes(this Span<byte> buffer, StringBuilder builder)
{
for (int i = 0; i < buffer.Length; i++)
{
if (i > 0) builder.Append(", ");
builder.Append("0x");
AppendByteToHex(builder, buffer[i]);
}
}
/// <summary>
/// Converts the input span to hexadecimal bytes representation (e.g "0x12, 0xaf, 0x56...")
/// </summary>
/// <param name="buffer">The buffer to convert to hex bytes.</param>
/// <returns>A string representation with hexadecimal bytes from the input span buffer.</returns>
public static string ToHexBytes(this Span<byte> buffer)
{
var builder = new StringBuilder();
ToHexBytes(buffer, builder);
return builder.ToString();
}
/// <summary>
/// A 8-byte struct.
/// </summary>
[StructLayout(LayoutKind.Sequential, Size = 8)]
public struct Byte8
{
public byte Value0;
public byte Value1;
public byte Value2;
public byte Value3;
public byte Value4;
public byte Value5;
public byte Value6;
public byte Value7;
public override string ToString()
{
var builder = new StringBuilder(8 * 2);
AppendByteToHex(builder, Value0);
AppendByteToHex(builder, Value1);
AppendByteToHex(builder, Value2);
AppendByteToHex(builder, Value3);
AppendByteToHex(builder, Value4);
AppendByteToHex(builder, Value5);
AppendByteToHex(builder, Value6);
AppendByteToHex(builder, Value7);
return builder.ToString();
}
}
/// <summary>
/// A 12-byte struct.
/// </summary>
[StructLayout(LayoutKind.Sequential, Size = 12)]
public struct Byte12
{
public byte Value0;
public byte Value1;
public byte Value2;
public byte Value3;
public byte Value4;
public byte Value5;
public byte Value6;
public byte Value7;
public byte Value8;
public byte Value9;
public byte Value10;
public byte Value11;
public override string ToString()
{
var builder = new StringBuilder(12 * 2);
AppendByteToHex(builder, Value0);
AppendByteToHex(builder, Value1);
AppendByteToHex(builder, Value2);
AppendByteToHex(builder, Value3);
AppendByteToHex(builder, Value4);
AppendByteToHex(builder, Value5);
AppendByteToHex(builder, Value6);
AppendByteToHex(builder, Value7);
AppendByteToHex(builder, Value8);
AppendByteToHex(builder, Value9);
AppendByteToHex(builder, Value10);
AppendByteToHex(builder, Value11);
return builder.ToString();
}
}
/// <summary>
/// A 16-byte struct.
/// </summary>
[StructLayout(LayoutKind.Sequential, Size = 16)]
public struct Byte16
{
public byte Value0;
public byte Value1;
public byte Value2;
public byte Value3;
public byte Value4;
public byte Value5;
public byte Value6;
public byte Value7;
public byte Value8;
public byte Value9;
public byte Value10;
public byte Value11;
public byte Value12;
public byte Value13;
public byte Value14;
public byte Value15;
public override string ToString()
{
var builder = new StringBuilder(16 * 2);
AppendByteToHex(builder, Value0);
AppendByteToHex(builder, Value1);
AppendByteToHex(builder, Value2);
AppendByteToHex(builder, Value3);
AppendByteToHex(builder, Value4);
AppendByteToHex(builder, Value5);
AppendByteToHex(builder, Value6);
AppendByteToHex(builder, Value7);
AppendByteToHex(builder, Value8);
AppendByteToHex(builder, Value9);
AppendByteToHex(builder, Value10);
AppendByteToHex(builder, Value11);
AppendByteToHex(builder, Value12);
AppendByteToHex(builder, Value13);
AppendByteToHex(builder, Value14);
AppendByteToHex(builder, Value15);
return builder.ToString();
}
}
/// <summary>
/// A 24-byte struct.
/// </summary>
[StructLayout(LayoutKind.Sequential, Size = 24)]
public struct Byte24
{
public byte Value0;
public byte Value1;
public byte Value2;
public byte Value3;
public byte Value4;
public byte Value5;
public byte Value6;
public byte Value7;
public byte Value8;
public byte Value9;
public byte Value10;
public byte Value11;
public byte Value12;
public byte Value13;
public byte Value14;
public byte Value15;
public byte Value16;
public byte Value17;
public byte Value18;
public byte Value19;
public byte Value20;
public byte Value21;
public byte Value22;
public byte Value23;
public override string ToString()
{
var builder = new StringBuilder(24*2);
AppendByteToHex(builder, Value0);
AppendByteToHex(builder, Value1);
AppendByteToHex(builder, Value2);
AppendByteToHex(builder, Value3);
AppendByteToHex(builder, Value4);
AppendByteToHex(builder, Value5);
AppendByteToHex(builder, Value6);
AppendByteToHex(builder, Value7);
AppendByteToHex(builder, Value8);
AppendByteToHex(builder, Value9);
AppendByteToHex(builder, Value10);
AppendByteToHex(builder, Value11);
AppendByteToHex(builder, Value12);
AppendByteToHex(builder, Value13);
AppendByteToHex(builder, Value14);
AppendByteToHex(builder, Value15);
AppendByteToHex(builder, Value16);
AppendByteToHex(builder, Value17);
AppendByteToHex(builder, Value18);
AppendByteToHex(builder, Value19);
AppendByteToHex(builder, Value20);
AppendByteToHex(builder, Value21);
AppendByteToHex(builder, Value22);
AppendByteToHex(builder, Value23);
return builder.ToString();
}
}
/// <summary>
/// A 32-byte struct.
/// </summary>
[StructLayout(LayoutKind.Sequential, Size = 32)]
public struct Byte32
{
public byte Value0;
public byte Value1;
public byte Value2;
public byte Value3;
public byte Value4;
public byte Value5;
public byte Value6;
public byte Value7;
public byte Value8;
public byte Value9;
public byte Value10;
public byte Value11;
public byte Value12;
public byte Value13;
public byte Value14;
public byte Value15;
public byte Value16;
public byte Value17;
public byte Value18;
public byte Value19;
public byte Value20;
public byte Value21;
public byte Value22;
public byte Value23;
public byte Value24;
public byte Value25;
public byte Value26;
public byte Value27;
public byte Value28;
public byte Value29;
public byte Value30;
public byte Value31;
public override string ToString()
{
var builder = new StringBuilder(32*2);
AppendByteToHex(builder, Value0);
AppendByteToHex(builder, Value1);
AppendByteToHex(builder, Value2);
AppendByteToHex(builder, Value3);
AppendByteToHex(builder, Value4);
AppendByteToHex(builder, Value5);
AppendByteToHex(builder, Value6);
AppendByteToHex(builder, Value7);
AppendByteToHex(builder, Value8);
AppendByteToHex(builder, Value9);
AppendByteToHex(builder, Value10);
AppendByteToHex(builder, Value11);
AppendByteToHex(builder, Value12);
AppendByteToHex(builder, Value13);
AppendByteToHex(builder, Value14);
AppendByteToHex(builder, Value15);
AppendByteToHex(builder, Value16);
AppendByteToHex(builder, Value17);
AppendByteToHex(builder, Value18);
AppendByteToHex(builder, Value19);
AppendByteToHex(builder, Value20);
AppendByteToHex(builder, Value21);
AppendByteToHex(builder, Value22);
AppendByteToHex(builder, Value23);
AppendByteToHex(builder, Value24);
AppendByteToHex(builder, Value25);
AppendByteToHex(builder, Value26);
AppendByteToHex(builder, Value27);
AppendByteToHex(builder, Value28);
AppendByteToHex(builder, Value29);
AppendByteToHex(builder, Value30);
AppendByteToHex(builder, Value31);
return builder.ToString();
}
}
/// <summary>
/// A 64-byte struct.
/// </summary>
[StructLayout(LayoutKind.Sequential, Size = 64)]
public struct Byte64
{
public byte Value0;
public byte Value1;
public byte Value2;
public byte Value3;
public byte Value4;
public byte Value5;
public byte Value6;
public byte Value7;
public byte Value8;
public byte Value9;
public byte Value10;
public byte Value11;
public byte Value12;
public byte Value13;
public byte Value14;
public byte Value15;
public byte Value16;
public byte Value17;
public byte Value18;
public byte Value19;
public byte Value20;
public byte Value21;
public byte Value22;
public byte Value23;
public byte Value24;
public byte Value25;
public byte Value26;
public byte Value27;
public byte Value28;
public byte Value29;
public byte Value30;
public byte Value31;
public byte Value32;
public byte Value33;
public byte Value34;
public byte Value35;
public byte Value36;
public byte Value37;
public byte Value38;
public byte Value39;
public byte Value40;
public byte Value41;
public byte Value42;
public byte Value43;
public byte Value44;
public byte Value45;
public byte Value46;
public byte Value47;
public byte Value48;
public byte Value49;
public byte Value50;
public byte Value51;
public byte Value52;
public byte Value53;
public byte Value54;
public byte Value55;
public byte Value56;
public byte Value57;
public byte Value58;
public byte Value59;
public byte Value60;
public byte Value61;
public byte Value62;
public byte Value63;
public override string ToString()
{
var builder = new StringBuilder(64*2);
AppendByteToHex(builder, Value0);
AppendByteToHex(builder, Value1);
AppendByteToHex(builder, Value2);
AppendByteToHex(builder, Value3);
AppendByteToHex(builder, Value4);
AppendByteToHex(builder, Value5);
AppendByteToHex(builder, Value6);
AppendByteToHex(builder, Value7);
AppendByteToHex(builder, Value8);
AppendByteToHex(builder, Value9);
AppendByteToHex(builder, Value10);
AppendByteToHex(builder, Value11);
AppendByteToHex(builder, Value12);
AppendByteToHex(builder, Value13);
AppendByteToHex(builder, Value14);
AppendByteToHex(builder, Value15);
AppendByteToHex(builder, Value16);
AppendByteToHex(builder, Value17);
AppendByteToHex(builder, Value18);
AppendByteToHex(builder, Value19);
AppendByteToHex(builder, Value20);
AppendByteToHex(builder, Value21);
AppendByteToHex(builder, Value22);
AppendByteToHex(builder, Value23);
AppendByteToHex(builder, Value24);
AppendByteToHex(builder, Value25);
AppendByteToHex(builder, Value26);
AppendByteToHex(builder, Value27);
AppendByteToHex(builder, Value28);
AppendByteToHex(builder, Value29);
AppendByteToHex(builder, Value30);
AppendByteToHex(builder, Value31);
AppendByteToHex(builder, Value32);
AppendByteToHex(builder, Value33);
AppendByteToHex(builder, Value34);
AppendByteToHex(builder, Value35);
AppendByteToHex(builder, Value36);
AppendByteToHex(builder, Value37);
AppendByteToHex(builder, Value38);
AppendByteToHex(builder, Value39);
AppendByteToHex(builder, Value40);
AppendByteToHex(builder, Value41);
AppendByteToHex(builder, Value42);
AppendByteToHex(builder, Value43);
AppendByteToHex(builder, Value44);
AppendByteToHex(builder, Value45);
AppendByteToHex(builder, Value46);
AppendByteToHex(builder, Value47);
AppendByteToHex(builder, Value48);
AppendByteToHex(builder, Value49);
AppendByteToHex(builder, Value50);
AppendByteToHex(builder, Value51);
AppendByteToHex(builder, Value52);
AppendByteToHex(builder, Value53);
AppendByteToHex(builder, Value54);
AppendByteToHex(builder, Value55);
AppendByteToHex(builder, Value56);
AppendByteToHex(builder, Value57);
AppendByteToHex(builder, Value58);
AppendByteToHex(builder, Value59);
AppendByteToHex(builder, Value60);
AppendByteToHex(builder, Value61);
AppendByteToHex(builder, Value62);
AppendByteToHex(builder, Value63);
return builder.ToString();
}
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private static char ByteHighToHex(byte value) => HexBytes[(value >> 4) & 0x0F];
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private static char ByteLowToHex(byte value) => HexBytes[value & 0xF];
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private static void AppendByteToHex(StringBuilder builder, byte value)
{
builder.Append(ByteHighToHex(value));
builder.Append(ByteLowToHex(value));
}
private static void ExpectSize(string arg, int expectedSize, int size)
{
if (size != expectedSize) throw new ArgumentException($"Invalid length {size} for key. Expecting {expectedSize} bytes instead.", arg);
}
private static void ExpectSameBufferSize(string leftArg, int leftSize, string rightArg, int rightSize)
{
if (leftSize != rightSize) throw new ArgumentException($"Invalid length {leftSize} for {leftArg} not matching the length {rightSize} of {rightArg}", leftArg);
}
private static void ExpectSize8(string arg, int size) => ExpectSize(arg, 8, size);
private static void ExpectSize12(string arg, int size) => ExpectSize(arg, 12, size);
private static void ExpectSize16(string arg, int size) => ExpectSize(arg, 16, size);
private static void ExpectSize24(string arg, int size) => ExpectSize(arg, 24, size);
private static void ExpectSize32(string arg, int size) => ExpectSize(arg, 32, size);
private static void ExpectSize64(string arg, int size) => ExpectSize(arg, 64, size);
}
}