feat: initial

crypto/win32.js

@@ -0,0 +1,63 @@
+// Core modules
+const crypto = require("crypto");
+
+// Third-party modules
+const hkdf = require("futoin-hkdf");
+
+// Password Versions
+const PASSWORD_V10 = "v10";
+
+// Encryption Key
+const KEY_SECRET = "peanuts";
+const KEY_LEN = 256 / 8; // 32 bytes
+const KEY_SALT = "salt";
+const KEY_INFO = "info";
+const KEY_HASH = "sha-256";
+
+const NONCE_LEN = 96 / 8; // 12 bytes
+const DEC_ALGO = "aes-256-gcm";
+
+/**
+ *
+ * @returns {Buffer}
+ */
+const createEncryptionKey = () => {
+  return hkdf(KEY_SECRET, KEY_LEN, { salt: KEY_SALT, info: "info" });
+};
+
+/**
+ *
+ * @param {object} browser
+ * @param {Buffer} data
+ * @returns {Promise<string>}
+ */
+exports.decrypt = (browser, data) => {
+  return new Promise((resolve, reject) => {
+    if (!browser) {
+      reject(new TypeError("No browser."));
+
+      return;
+    }
+
+    if (!data) {
+      reject(new TypeError("No data."));
+
+      return;
+    }
+
+    const ciphertext = data.toString();
+
+    if (ciphertext.startsWith(PASSWORD_V10)) {
+      // TODO: Unprotect data.
+
+      return;
+    }
+
+    const key = createEncryptionKey();
+    const nonce = ciphertext.substring(PASSWORD_V10.length - 1, NONCE_LEN);
+    const rawCiphertext = ciphertext.substring(
+      NONCE_LEN + PASSWORD_V10.length - 1
+    );
+    const decipher = crypto.createDecipheriv(DEC_ALGO, key, iv);
+  });
+};

package.json

@@ -30,20 +30,21 @@
   "private": false,
   "dependencies": {
     "commander": "^7.2.0",
+    "futoin-hkdf": "^1.3.3",
     "keytar": "^7.2.0",
-    "sqlite3": "^5.0.0",
-    "prettier": "2.2.1"
+    "prettier": "2.2.1",
+    "sqlite3": "^5.0.0"
   },
   "scripts": {
     "format": "prettier --write --ignore-unknown ."
   },
   "devDependencies": {
     "@commitlint/cli": "^12.1.4",
     "@commitlint/config-conventional": "^11.0.0",
+    "@semantic-release/git": "^9.0.0",
     "husky": "^4.2.1",
     "lint-staged": "^11.0.0",
-    "semantic-release": "^17.4.3",
-    "@semantic-release/git": "^9.0.0"
+    "semantic-release": "^17.4.3"
   },
   "husky": {
     "hooks": {

yarn.lock

@@ -1785,6 +1785,11 @@ function-bind@^1.1.1:
   resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.1.tgz#a56899d3ea3c9bab874bb9773b7c5ede92f4895d"
   integrity sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A==
 
+futoin-hkdf@^1.3.3:
+  version "1.3.3"
+  resolved "https://registry.yarnpkg.com/futoin-hkdf/-/futoin-hkdf-1.3.3.tgz#6ee1c9c105dfa0995ba4f80633cf1c0c32defcb2"
+  integrity sha512-oR75fYk3B3X9/B02Y6vusrBKucrpC6VjxhRL+C6B7FwUpuSRHbhBNG3AZbcE/xPyJmEQWsyqUFp3VeNNbA3S7A==
+
 gauge@~2.7.3:
   version "2.7.4"
   resolved "https://registry.yarnpkg.com/gauge/-/gauge-2.7.4.tgz#2c03405c7538c39d7eb37b317022e325fb018bf7"