-
Notifications
You must be signed in to change notification settings - Fork 0
/
Cryptography.js
397 lines (332 loc) · 12.3 KB
/
Cryptography.js
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
import React, { createContext, useContext, useState, useEffect } from "react";
import { sha3_512 } from 'js-sha3';
import Chance from 'chance';
// Create Context
const CryptographyContext = createContext(null);
// Cryptographically Random String Generator
export const randomString = (additionalSalt = '') => {
// Define the length of the random string
const randomStringLength = 16; // You can change this value to generate a longer or shorter string
// Generate a random array of uint8 values
const randomValues = crypto.getRandomValues(new Uint8Array(randomStringLength));
// Convert random values to hexadecimal string
const randomHex = Array.from(randomValues).map(byte => byte.toString(16).padStart(2, '0')).join('');
// If additional salt is provided, concatenate it with the random string
const randomString = additionalSalt ? additionalSalt + randomHex : randomHex;
return randomString;
};
// // Usage:
// const randomString = random('some more salt');
// console.log(randomString);
// CryptographyProvider Component
export const CryptographyProvider = ({ entropy = '', children }) => {
const [salt, setSalt] = useState('');
const [chance, setChance] = useState(new Chance(salt));
console.log({ salt })
useEffect(() => {
const updateSates = async () => {
const newSalt = await sha256Hash(entropy);
setSalt(newSalt);
setChance(new Chance(newSalt));
}
updateSates();
}, [entropy]);
const random = (additionalSalt = '') => randomString(additionalSalt+salt);
// Hashing Methods
const sha256Hash = async (input) => {
// // Ensure the input is a string
// if (typeof inputString !== 'string') throw new Error('Input must be a string');
const inputString = JSON.stringify(input);
// Convert the string to an ArrayBuffer
const encoder = new TextEncoder();
const data = encoder.encode(inputString);
// Hash the data
const hashBuffer = await crypto.subtle.digest('SHA-256', data);
// Convert the result to a hexadecimal string
const hashArray = Array.from(new Uint8Array(hashBuffer));
const hashHex = hashArray.map(byte => byte.toString(16).padStart(2, '0')).join('');
return hashHex;
};
// // Usage:
// sha256Hash('some string')
// .then(hash => console.log(hash))
// .catch(error => console.error(error));
const sha512Hash = async (input) => {
// // Ensure the input is a string
// if (typeof inputString !== 'string') throw new Error('Input must be a string');
const inputString = JSON.stringify(input);
// Convert the string to an ArrayBuffer
const encoder = new TextEncoder();
const data = encoder.encode(inputString);
// Hash the data
const hashBuffer = await crypto.subtle.digest('SHA-512', data);
// Convert the result to a hexadecimal string
const hashArray = Array.from(new Uint8Array(hashBuffer));
const hashHex = hashArray.map(byte => byte.toString(16).padStart(2, '0')).join('');
return hashHex;
};
// // Usage:
// sha512Hash('some string')
// .then(hash => console.log(hash))
// .catch(error => console.error(error));
const sha3_512Hash = async (input) => {
// // Ensure the input is a string
// if (typeof inputString !== 'string') throw new Error('Input must be a string');
const inputString = JSON.stringify(input);
// Hash the data
const hashHex = sha3_512(inputString);
return hashHex;
}
// // Usage:
// sha3_512Hash('some string')
// .then(hash => console.log(hash))
// .catch(error => console.error(error));
// RSA Key Generation and Encryption/Decryption Methods
const generateKeyPair = async () => {
try {
const keyPair = await crypto.subtle.generateKey(
{
name: 'RSA-OAEP',
modulusLength: 4096, // Can be 1024, 2048, or 4096
publicExponent: new Uint8Array([1, 0, 1]), // 65537 in bytes
hash: 'SHA-256', // Can be "SHA-1", "SHA-256", "SHA-384", or "SHA-512"
},
true, // Whether the key is extractable
['encrypt', 'decrypt'] // Key usages
);
return {
publicKey: keyPair.publicKey,
privateKey: keyPair.privateKey,
};
} catch (error) {
console.error('Error generating key pair:', error);
throw error;
}
};
// // Usage:
// generateKeyPair('some salt')
// .then(keyPair => {
// console.log('Public Key:', keyPair.publicKey);
// console.log('Private Key:', keyPair.privateKey);
// })
// .catch(error => console.error(error));
function setClassPropsFromJson(json, instance) {
for (let prop in json) {
if (json.hasOwnProperty(prop)) {
instance[prop] = json[prop];
}
}
return instance;
}
const deserializePublicKey = async (key) => {
try {
const publicKey = await crypto.subtle.importKey(
'jwk', // Import format
key, // The key in JWK format
{
name: 'RSA-OAEP', // Algorithm name
hash: 'SHA-256', // Hash algorithm
},
true, // Extractable flag
['encrypt'] // Key usages
);
return setClassPropsFromJson(key, publicKey);
} catch (error) {
console.error('Error deserializing public key:', error);
throw error;
}
};
// // Usage:
// const jwk = {
// kty: 'RSA',
// // ... other JWK properties
// };
// deserializePublicKey(jwk)
// .then(publicKey => console.log('Public Key:', publicKey))
// .catch(error => console.error(error));
const deserializePrivateKey = async (key) => {
try {
const privateKey = await crypto.subtle.importKey(
'jwk', // Import format
key, // The key in JWK format
{
name: 'RSA-OAEP', // Algorithm name
hash: 'SHA-256', // Hash algorithm
},
true, // Extractable flag
['decrypt'] // Key usages
);
return setClassPropsFromJson(key, privateKey);
} catch (error) {
console.error('Error deserializing private key:', error);
throw error;
}
};
// // Usage:
// const jwk = {
// kty: 'RSA',
// // ... other JWK properties
// };
// deserializePrivateKey(jwk)
// .then(privateKey => console.log('Private Key:', privateKey))
// .catch(error => console.error(error));
const encrypt = async (message, publicKey) => {
const encodedMessage = new TextEncoder().encode(message);
const encrypted = await window.crypto.subtle.encrypt(
{
name: 'RSA-OAEP',
hash: 'SHA-256',
},
publicKey,
encodedMessage
).catch((error) => {
console.log('error', error);
});
return btoa(String.fromCharCode(...new Uint8Array(encrypted)));
};
// const message = 'Hello, World!';
// const publicKey; // Assume this is obtained from your key generation or deserialization functions
// encrypt(message, publicKey)
// .then(encryptedMessage => {
// console.log('Encrypted Message:', encryptedMessage);
// })
// .catch(error => {
// console.error('Encryption Error:', error);
// });
const decrypt = async (encryptedMessage, privateKey, passphrase) => {
const buffer = Uint8Array.from(atob(encryptedMessage), c => c.charCodeAt(0));
try {
const decrypted = await window.crypto.subtle.decrypt(
{
name: 'RSA-OAEP',
hash: 'SHA-256',
},
privateKey,
buffer
);
const message = new TextDecoder().decode(decrypted);
return message;
} catch (error) {
console.log('error', error);
throw new Error('Unable to decrypt message. Incorrect passphrase.', error);
}
};
// const encryptedMessage; // Assume this is obtained from your encrypt function
// const privateKey; // Assume this is obtained from your key generation or deserialization functions
// decrypt(encryptedMessage, privateKey)
// .then(decryptedMessage => {
// console.log('Decrypted Message:', decryptedMessage);
// })
// .catch(error => {
// console.error('Decryption Error:', error);
// });
// Symmetric Key Generation and Encryption/Decryption Methods
const generateSymmetricKey = async () => {
const key = await window.crypto.subtle.generateKey(
{
name: 'AES-GCM',
length: 256, // can be 128, 192, or 256
},
true, // whether the key is extractable (i.e. can be used in exportKey)
['encrypt', 'decrypt']
);
return key;
};
const deserializeSymmetricKey = async (key) => {
const deSerializedSymmetricKey = await window.crypto.subtle.importKey(
'jwk',
{
...key,
kty: 'oct'
},
{
name: 'AES-GCM',
},
true,
['encrypt', 'decrypt']
);
return setClassPropsFromJson(key, deSerializedSymmetricKey)
}
const encryptWithSymmetricKey = async (message, key) => {
const encodedMessage = new TextEncoder().encode(message);
const iv = window.crypto.getRandomValues(new Uint8Array(12)); // must be 12 bytes
const encrypted = await window.crypto.subtle.encrypt(
{
name: 'AES-GCM',
iv: iv,
},
key,
encodedMessage
).catch((error) => {
console.log('error', error);
});
return {
ciphertext: btoa(String.fromCharCode(...new Uint8Array(encrypted))),
iv: btoa(String.fromCharCode(...new Uint8Array(iv))),
};
};
const decryptWithSymmetricKey = async (encryptedData, key) => {
const { ciphertext, iv } = encryptedData;
const buffer = Uint8Array.from(atob(ciphertext), c => c.charCodeAt(0));
const ivBuffer = Uint8Array.from(atob(iv), c => c.charCodeAt(0));
try {
const decrypted = await window.crypto.subtle.decrypt(
{
name: 'AES-GCM',
iv: ivBuffer,
},
key,
buffer
);
const message = new TextDecoder().decode(decrypted);
return message;
} catch (error) {
throw new Error('Unable to decrypt message. Incorrect key.');
}
};
// Exported Methods Bundle
const cryptographyMethods = {
randomString,
sha256Hash,
sha512Hash,
sha3_512Hash,
generateKeyPair,
deserializePublicKey,
deserializePrivateKey,
encrypt,
decrypt,
generateSymmetricKey,
deserializeSymmetricKey,
encryptWithSymmetricKey,
decryptWithSymmetricKey,
// Add more methods as needed
chance
};
return (
<CryptographyContext.Provider value={cryptographyMethods}>
{children}
</CryptographyContext.Provider>
);
};
// Custom Hook to use Cryptography
export const useCryptography = () => {
return useContext(CryptographyContext);
};
// Usage in some component
/*
const {
random,
sha256Hash,
sha512Hash,
generateKeyPair,
deserializePublicKey,
deserializePrivateKey,
encrypt,
decrypt,
generateSymmetricKey,
deserializeSymmetricKey,
encryptWithSymmetricKey,
decryptWithSymmetricKey,
chance
} = useCryptography();
*/