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import CryptoJS from "./lib/index.js"
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import { JSEncrypt } from "./src/JSEncrypt"
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export { RSARANDOMKEY } from "../interface.uts"
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function adjustIV(ivStr, requiredLength = 16) {
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// 将字符串转换为字节
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let ivBytes = CryptoJS.enc.Utf8.parse(ivStr);
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// 创建一个新的WordArray来存储处理后的IV
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let adjustedIV = CryptoJS.lib.WordArray.create();
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if (ivBytes.sigBytes >= requiredLength) {
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// 如果IV长度足够或过长，进行截取
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adjustedIV = CryptoJS.lib.WordArray.create(ivBytes.words.slice(0, requiredLength / 4));
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} else {
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// 如果IV长度不足，进行补足0
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adjustedIV = CryptoJS.lib.WordArray.create(ivBytes.words);
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for (let i = ivBytes.sigBytes / 4; i < requiredLength / 4; i++) {
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adjustedIV.words[i] = 0;
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}
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adjustedIV.sigBytes = requiredLength;
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}
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return adjustedIV;
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}
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function adjustIV2(ivStr:Uint8Array, requiredLength = 16) {
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// 确保密钥长度为requiredLength字节，不足时用0填充，过长时截断
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const paddedKey = new Uint8Array(requiredLength);
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if (ivStr.length < requiredLength) {
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paddedKey.set(ivStr, 0);
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} else {
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paddedKey.set(ivStr.slice(0, requiredLength), 0);
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}
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// 将Uint8Array转换为WordArray
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const words:number[] = [];
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for (let i = 0; i < paddedKey.length; i += 4) {
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let word = 0;
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for (let j = 0; j < 4 && i + j < paddedKey.length; j++) {
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word |= paddedKey[i + j] << (24 - j * 8);
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}
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words.push(word);
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}
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return CryptoJS.lib.WordArray.create(words, paddedKey.length);
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}
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export function base64Encode(input : string) : string {
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return CryptoJS.enc.Utf8.parse(input).toString(CryptoJS.enc.Base64)
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}
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export function base64Decode(input : string) : string {
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return CryptoJS.enc.Base64.parse(input).toString(CryptoJS.enc.Utf8)
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}
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export function md5(input : string) : string {
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return CryptoJS.MD5(input).toString()
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}
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export function sha256(str : string) : string {
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return CryptoJS.SHA256(str).toString()
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}
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export function sha512(str : string) : string {
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return CryptoJS.SHA512(str).toString()
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}
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export function hmacSha256(key : string, data : string) : string {
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return CryptoJS.HmacSHA256(data, key).toString()
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}
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export function hmacSha512(key : string, data : string) : string {
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return CryptoJS.HmacSHA512(data, key).toString()
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}
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export function sha1(str : string) : string {
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return CryptoJS.SHA1(str).toString()
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}
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/**
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* Aes
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* @param {string} key utf8字符串它会根据keySize来截取和补足0
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* @param {string} data 待加密的字符
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* @param {string} mode ECB,CBC
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* @param {string} iv 固定是16位,不足会补齐0
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* @param {string} keySize 对key的加密补位,也就是加密位数16为128,24为192,32为256
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*/
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export function aesEncrypt(key : string, data : string, mode : string = "ECB", iv : string | null = null, keySize : number | null = 16) : string {
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const keyData = adjustIV(key, keySize || 16);
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const ivValue = adjustIV(iv || "");
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let word = CryptoJS.AES.encrypt(data, keyData, {
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iv: ivValue,
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mode: CryptoJS.mode[mode],
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padding: CryptoJS.pad.Pkcs7
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});
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return word.toString()
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}
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/**
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* DAes
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* @param {string} key utf8字符串它会根据keySize来截取和补足0
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* @param {string} data 加密后的base64的字符
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* @param {string} mode ECB,CBC
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* @param {string} iv 固定是16位,不足会补齐0
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* @param {string} keySize 对key的加密补位,也就是加密位数16为128,24为192,32为256
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*/
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export function aesDecrypt(key : string, data : string, mode : string = "ECB", iv : string | null = null, keySize : number | null = 16) : string {
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const keyData = adjustIV(key, keySize || 16);
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const ivValue = adjustIV(iv || "");
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let word = CryptoJS.AES.decrypt(data, keyData, { iv: ivValue, mode: CryptoJS.mode[mode], padding: CryptoJS.pad.Pkcs7 });
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return word.toString(CryptoJS.enc.Utf8)
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}
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export function aesEncrypt2(key : Uint8Array, data : Uint8Array, mode : string = "ECB", iv : Uint8Array | null = null, keySize : number | null = 16) : Uint8Array {
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const keyData = adjustIV2(key, keySize || 16);
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// 将数据转换为WordArray
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const words:number[] = [];
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for (let i = 0; i < data.length; i += 4) {
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let word = 0;
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for (let j = 0; j < 4 && i + j < data.length; j++) {
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word |= data[i + j] << (24 - j * 8);
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}
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words.push(word);
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}
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const dataU8 = CryptoJS.lib.WordArray.create(words, data.length);
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// 处理IV
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let ivValue:any;
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if (mode === "ECB") {
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ivValue = CryptoJS.lib.WordArray.create([]);
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} else {
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const ivData = iv || new Uint8Array(16);
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ivValue = adjustIV2(ivData, 16);
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}
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let word = CryptoJS.AES.encrypt(dataU8, keyData, {
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iv: ivValue,
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mode: CryptoJS.mode[mode],
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padding: CryptoJS.pad.Pkcs7
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});
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// 正确地将WordArray转换为Uint8Array
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// @ts-ignore
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const resultWords = word.ciphertext.words;
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// @ts-ignore
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const sigBytes = word.ciphertext.sigBytes;
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const result = new Uint8Array(sigBytes);
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for (let i = 0; i < sigBytes; i++) {
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const wordIndex = Math.floor(i / 4);
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const byteIndex = i % 4;
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result[i] = (resultWords[wordIndex] >>> (24 - byteIndex * 8)) & 0xff;
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}
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return result;
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}
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export function aesDecrypt2(key : Uint8Array, data : Uint8Array, mode : string = "ECB", iv : Uint8Array | null = null, keySize : number | null = 16) : Uint8Array {
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const keyData = adjustIV2(key, keySize || 16);
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// 处理IV
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let ivValue:any;
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if (mode === "ECB") {
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ivValue = CryptoJS.lib.WordArray.create([]);
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} else {
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const ivData = iv || new Uint8Array(16);
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ivValue = adjustIV2(ivData, 16);
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}
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// 将加密数据转换为WordArray
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const words:number[] = [];
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for (let i = 0; i < data.length; i += 4) {
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let word = 0;
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for (let j = 0; j < 4 && i + j < data.length; j++) {
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word |= data[i + j] << (24 - j * 8);
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}
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words.push(word);
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}
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const cipherParams = CryptoJS.lib.CipherParams.create({
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ciphertext: CryptoJS.lib.WordArray.create(words, data.length)
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});
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let word = CryptoJS.AES.decrypt(cipherParams, keyData, { iv: ivValue, mode: CryptoJS.mode[mode], padding: CryptoJS.pad.Pkcs7 });
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// 正确地将WordArray转换为Uint8Array
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const resultWords = word.words;
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const sigBytes = word.sigBytes;
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const result = new Uint8Array(sigBytes);
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for (let i = 0; i < sigBytes; i++) {
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const wordIndex = Math.floor(i / 4);
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const byteIndex = i % 4;
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result[i] = (resultWords[wordIndex] >>> (24 - byteIndex * 8)) & 0xff;
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}
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return result;
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}
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export function desEncrypt(key : string, data : string, mode : string = "ECB", iv : string | null = null) : string {
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let word = CryptoJS.DES.encrypt(data, key, { iv: CryptoJS.enc.Utf8.parse(iv || ""), mode: CryptoJS.mode[mode] });
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return word.toString()
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}
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export function desDecrypt(key : string, data : string, mode : string = "ECB", iv : string | null = null) : string {
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let word = CryptoJS.DES.decrypt(data, key, { iv: CryptoJS.enc.Utf8.parse(iv || ""), mode: CryptoJS.mode[mode] });
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return word.toString(CryptoJS.enc.Utf8)
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}
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export function generateRSAKeyPair(keySize : number = 2048) : RSARANDOMKEY {
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const crypt = new JSEncrypt({ default_key_size: keySize.toString() })
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crypt.getKey()
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return {
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publicKey: crypt.getPublicKey(),
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privateKey: crypt.getPrivateKey()
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} as RSARANDOMKEY
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}
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export function rsaEncrypt(publicKey : string, data : string) : string {
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JSEncrypt.prototype.setPublicKey(publicKey)
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return JSEncrypt.prototype.encrypt(data) || ""
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}
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export function rsaDecrypt(privateKey : string, data : string) : string {
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JSEncrypt.prototype.setPrivateKey(privateKey)
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return JSEncrypt.prototype.decrypt(data) || ""
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}
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//返回的是hex字符串
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export function rc4Encrypt(key : string, data : string) : string {
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return CryptoJS.RC4.encrypt(data, CryptoJS.enc.Utf8.parse(key)).toString(CryptoJS.format.Hex)
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}
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// key是hex字符
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export function rc4Decrypt(key : string, data : string) : string {
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const ciphertext = CryptoJS.enc.Hex.parse(data);
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let dec = CryptoJS.RC4.decrypt({ ciphertext: ciphertext }, CryptoJS.enc.Utf8.parse(key))
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return dec.toString(CryptoJS.enc.Utf8);
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}
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