js 浏览器下 aes解密

安装 crypto-js

pnpm install crypto-js

代码

import * as CryptoJS from 'crypto-js';


export async function decryptText(text: string): Promise<string> {
    // 16进制
    const keyHex = "cb69976b953380e5ff637b0bf9af35fdf1a56815c81296b3e5314e506d209a05";
    const ivHex = 'a312cc7df85e4d26dc65fb4f3fe82919'
    // console.log(`text: ${text}`)
    // Convert hex strings to Uint8Array
    const keyArray = new Uint8Array(
        keyHex.match(/.{1,2}/g).map(byte => parseInt(byte, 16))
    );
    const ivArray = new Uint8Array(
        ivHex.match(/.{1,2}/g).map(byte => parseInt(byte, 16))
    );

    const encryptedData = hexStringToByteArray(text)

    // AES decryption using crypto-js
    const decryptedData = CryptoJS.AES.decrypt(
        {
            ciphertext: CryptoJS.enc.Hex.parse(
                Array.from(encryptedData).map(byte => ('0' + (byte & 0xFF).toString(16)).slice(-2)).join('')
            )
        },
        CryptoJS.enc.Hex.parse(
            Array.from(keyArray).map(byte => ('0' + byte.toString(16)).slice(-2)).join('')
        ),
        {
            iv: CryptoJS.enc.Hex.parse(
                Array.from(ivArray).map(byte => ('0' + byte.toString(16)).slice(-2)).join('')
            ),
            mode: CryptoJS.mode.CBC,
            padding: CryptoJS.pad.Pkcs7,
        }
    );

    return decryptedData.toString(CryptoJS.enc.Utf8)
}