48 lines
1.6 KiB
JavaScript
48 lines
1.6 KiB
JavaScript
(function (global) {
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/* ---------- 1. 默认 16 字节密钥 ---------- */
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const DEFAULT_KEY_WA = CryptoJS.MD5("bsch2025"); // WordArray(16 byte)
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class BschCryptoUtil {
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#aesKey;
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constructor(key) {
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// 支持外部传入字符串或 WordArray，默认用隐藏后的 MD5
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this.#aesKey = key != null ? key : DEFAULT_KEY_WA;
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}
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encrypt(data) {
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const message = typeof data === "string" ? data : JSON.stringify(data);
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const encrypted = CryptoJS.AES.encrypt(message, this.#aesKey, {
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mode: CryptoJS.mode.ECB,
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padding: CryptoJS.pad.Pkcs7,
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});
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return encrypted.toString(); // Base64
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}
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decrypt(cipherText) {
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if (!cipherText) throw new Error("cipherText is empty");
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const decrypted = CryptoJS.AES.decrypt(cipherText, this.#aesKey, {
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mode: CryptoJS.mode.ECB,
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padding: CryptoJS.pad.Pkcs7,
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});
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const plain = decrypted.toString(CryptoJS.enc.Utf8);
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if (!plain) throw new Error("decrypt failed");
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try {
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return JSON.parse(plain);
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} catch (_) {
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return plain;
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}
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}
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static encrypt(data, key) {
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return new BschCryptoUtil(key).encrypt(data);
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}
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static decrypt(cipherText, key) {
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return new BschCryptoUtil(key).decrypt(cipherText);
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}
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}
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/* ---------- 6. 暴露到全局 ---------- */
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global.BschCryptoUtil = BschCryptoUtil;
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})(typeof window !== "undefined" ? window : this);
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