37 lines
1.3 KiB
JavaScript
37 lines
1.3 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.aes256gcm = void 0;
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var utils_1 = require("@noble/ciphers/utils");
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var crypto_1 = require("crypto");
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var consts_1 = require("../consts");
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// make `node:crypto`'s aes compatible with `@noble/ciphers`
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function aes256gcm(key, nonce, AAD) {
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var encrypt = function (plainText) {
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var cipher = (0, crypto_1.createCipheriv)("aes-256-gcm", key, nonce);
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if (AAD) {
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cipher.setAAD(AAD);
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}
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var updated = cipher.update(plainText);
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var finalized = cipher.final();
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return (0, utils_1.concatBytes)(updated, finalized, cipher.getAuthTag());
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};
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var decrypt = function (cipherText) {
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var encrypted = cipherText.subarray(0, cipherText.length - consts_1.AEAD_TAG_LENGTH);
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var tag = cipherText.subarray(-consts_1.AEAD_TAG_LENGTH);
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var decipher = (0, crypto_1.createDecipheriv)("aes-256-gcm", key, nonce);
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if (AAD) {
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decipher.setAAD(AAD);
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}
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decipher.setAuthTag(tag);
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var updated = decipher.update(encrypted);
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var finalized = decipher.final();
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return (0, utils_1.concatBytes)(updated, finalized);
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};
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return {
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tagLength: consts_1.AEAD_TAG_LENGTH,
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encrypt: encrypt,
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decrypt: decrypt,
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};
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}
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exports.aes256gcm = aes256gcm;
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