71 lines
2.3 KiB
JavaScript
71 lines
2.3 KiB
JavaScript
import {Buffer} from 'safe-buffer';
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//не менять
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const iv = Buffer.from('B6E2XejNh2dS');
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let aesKeys = {};
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export async function aesKeyFromPassword(password) {
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return await window.crypto.subtle.importKey(
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"raw", //only "raw" is allowed
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Buffer.from(password), //your password
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{
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name: "PBKDF2",
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},
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false, //whether the key is extractable (i.e. can be used in exportKey)
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["deriveKey"] //can be any combination of "deriveKey" and "deriveBits"
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).then((key) => {
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return window.crypto.subtle.deriveKey(
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{
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"name": "PBKDF2",
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salt: Buffer.from('Liberama project is awesome'),//не менять
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iterations: 1000,
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hash: {name: "SHA-256"}, //can be "SHA-1", "SHA-256", "SHA-384", or "SHA-512"
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},
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key, //your key from generateKey or importKey
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{ //the key type you want to create based on the derived bits
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name: "AES-GCM", //can be any AES algorithm ("AES-CTR", "AES-CBC", "AES-CMAC", "AES-GCM", "AES-CFB", "AES-KW", "ECDH", "DH", or "HMAC")
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//the generateKey parameters for that type of algorithm
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length: 256, //can be 128, 192, or 256
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},
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false, //whether the derived key is extractable (i.e. can be used in exportKey)
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["encrypt", "decrypt"] //limited to the options in that algorithm's importKey
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);
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});
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}
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export async function aesEncrypt(data, password) {
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if (!aesKeys[password])
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aesKeys[password] = await aesKeyFromPassword(password);
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const key = aesKeys[password];
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return await window.crypto.subtle.encrypt(
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{
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name: "AES-GCM",
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iv
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},
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key, //from generateKey or importKey above
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data //ArrayBuffer of data you want to encrypt
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);
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}
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export async function aesDecrypt(data, password) {
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if (!aesKeys[password])
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aesKeys[password] = await aesKeyFromPassword(password);
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const key = aesKeys[password];
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return await window.crypto.subtle.decrypt(
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{
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name: "AES-GCM",
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iv
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},
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key, //from generateKey or importKey above
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data //ArrayBuffer of the data
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);
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}
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export async function sha256(data) {
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return await crypto.subtle.digest("SHA-256", Buffer.from(data));
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}
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