implement AES encryption

This commit is contained in:
Bruno Windels 2020-11-10 19:48:36 +01:00
parent 82a9fafe8c
commit a37d8c0223

View file

@ -197,6 +197,37 @@ class AESCrypto {
throw new Error(`Could not decrypt with AES-CTR: ${err.message}`);
}
}
async encryptCTR({key, iv, data}) {
const opts = {
name: "AES-CTR",
counter: iv,
length: 64,
};
let aesKey;
try {
aesKey = await subtleCryptoResult(this._subtleCrypto.importKey(
"raw",
key,
opts,
false,
['encrypt'],
), "importKey");
} catch (err) {
throw new Error(`Could not import key for AES-CTR decryption: ${err.message}`);
}
try {
const ciphertext = await subtleCryptoResult(this._subtleCrypto.encrypt(
// see https://developer.mozilla.org/en-US/docs/Web/API/AesCtrParams
opts,
aesKey,
data,
), "encrypt");
return new Uint8Array(ciphertext);
} catch (err) {
throw new Error(`Could not decrypt with AES-CTR: ${err.message}`);
}
}
}
@ -237,6 +268,12 @@ class AESLegacyCrypto {
var aesCtr = new aesjs.ModeOfOperation.ctr(new Uint8Array(key), new aesjs.Counter(new Uint8Array(iv)));
return aesCtr.decrypt(new Uint8Array(data));
}
async encryptCTR({key, iv, data}) {
const aesjs = this._aesjs;
var aesCtr = new aesjs.ModeOfOperation.ctr(new Uint8Array(key), new aesjs.Counter(new Uint8Array(iv)));
return aesCtr.encrypt(new Uint8Array(data));
}
}
function hashName(name) {