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js aes加密 md5摘要 base64编码 ras加密

backend 2025/7/2 7:42:41

crypto-js

npm install crypto-js
主要用来处理： md5， AES, Base64

md5 摘要

const CryptoJS = require('crypto-js');function md5_test() {// 字符串入参console.log(CryptoJS.MD5('qwwqww').toString());// WordArray 入参const wordArray = CryptoJS.enc.Utf8.parse('qwwqww');CryptoJS.MD5(wordArray).toString();// wordArray 转换回 utf8 字符console.log(CryptoJS.enc.Utf8.stringify(wordArray));// 大文件 ，md5.update()const md5_hasher = CryptoJS.algo.MD5.create();md5_hasher.update('qww');md5_hasher.update('qww');const hash = md5_hasher.finalize();console.log(hash.toString());// 清除除之前的 update，调用 md5_hasher.reset()// md5_hasher.reset();// 输出：// 261c63f27f816ed12125f275350d512e// qwwqww// 261c63f27f816ed12125f275350d512e
}md5_test();

Base64 编码

(function base64_test() {// 3个字节转换为4个字节, 入参要为 wordArray， 就像后端入参为 ByteArray, 而不是字符串console.log(CryptoJS.enc.Base64.stringify(CryptoJS.enc.Utf8.parse('qww')));let md5_wordArr = CryptoJS.MD5('qwwqww');console.log(md5_wordArr.toString())// md5 输出的字符串采用16进制表示， 两个字符为一个实际的字节// 也就是6个字符代表3个实际的字节，是base 64后 会缩短为4个；也就是总长度会变为原来的 2/3const base64 = CryptoJS.enc.Base64.stringify(md5_wordArr);console.log(base64);
}())
// 输出：
// cXd3
// 261c63f27f816ed12125f275350d512e
// Jhxj8n+BbtEhJfJ1NQ1RLg==

AES

明文、秘钥和偏移向量一般先用诸如 CryptoJS.enc.Utf8.parse() 转成 WordArray 对象再传入，这样做得到结果与不转换直接传入是不一样的。
在加密时如果没有将明文进行 parse 而是直接传入的，那么在解密时，传入 toString() 的解析方式就是写默认的 CryptoJS.enc.Utf8。

const CryptoJS = require('crypto-js');function md5_test() {// 字符串入参console.log(CryptoJS.MD5('qwwqww').toString());// WordArray 入参const wordArray = CryptoJS.enc.Utf8.parse('qwwqww');CryptoJS.MD5(wordArray).toString();// wordArray 转换回 utf8 字符console.log(CryptoJS.enc.Utf8.stringify(wordArray));// 大文件 ，md5.update()const md5_hasher = CryptoJS.algo.MD5.create();md5_hasher.update('qww');md5_hasher.update('qww');const hash = md5_hasher.finalize();console.log(hash.toString());// 清除除之前的 update，调用 md5_hasher.reset()// md5_hasher.reset();
}function aes_test_wordArray() {// =============================使用 wordArray============================// 加密const txt = 'qwwqww';// 注意 key, iv 如果不是 128、192 或 256 bit, 可以加密出密文来，但无法解密const key = '0123456789123456';const iv_str = '0123456789123456';const message = CryptoJS.enc.Utf8.parse(txt);const secretPassphrase = CryptoJS.enc.Utf8.parse(key);const iv = CryptoJS.enc.Utf8.parse(iv_str);const encrypted = CryptoJS.AES.encrypt(message, secretPassphrase, {mode: CryptoJS.mode.CBC,padding: CryptoJS.pad.Pkcs7,iv}).toString();console.log(`==>>: encrypted= ${encrypted}`);// 解密const decrypted = CryptoJS.AES.decrypt(encrypted,secretPassphrase,{mode: CryptoJS.mode.CBC,padding: CryptoJS.pad.Pkcs7,iv: iv});console.log(`decrypted=[${decrypted}]`);console.log(`decrypted.toString()=[${decrypted.toString()}]`);console.log(`decrypted.toString(CryptoJS.enc.Utf8)=[${decrypted.toString(CryptoJS.enc.Utf8)}]`);console.log(decrypted.toString(CryptoJS.enc.Utf8));// 输出:// ==>>: encrypted= 7rPjCUFm6h6LkY5TkjwmGQ==// decrypted=[717777717777]// decrypted.toString()=[717777717777]// decrypted.toString(CryptoJS.enc.Utf8)=[qwwqww]// qwwqww}function aes_test_str() {// =============================使用 字符串============================// 加密const txt = 'qwwqww';// 注意 key, iv 如果不是 128、192 或 256 bit, 可以加密出密文来，但无法解密const key = '0123456789123456';const iv_str = '0123456789123456';// const message = CryptoJS.enc.Utf8.parse(txt);// const secretPassphrase = CryptoJS.enc.Utf8.parse(key);// const iv = CryptoJS.enc.Utf8.parse(iv_str);const encrypted_str = CryptoJS.AES.encrypt(txt, key, {mode: CryptoJS.mode.CBC,padding: CryptoJS.pad.Pkcs7,iv_str}).toString();console.log(`==>>: encrypted= ${encrypted_str}`);// 解密const decrypted = CryptoJS.AES.decrypt( encrypted_str, key,{mode: CryptoJS.mode.CBC,padding: CryptoJS.pad.Pkcs7,iv: iv_str});console.log(`decrypted=[${decrypted}]`);console.log(`decrypted.toString()=[${decrypted.toString()}]`);console.log(`decrypted.toString(CryptoJS.enc.Utf8)=[${decrypted.toString(CryptoJS.enc.Utf8)}]`);console.log(decrypted.toString(CryptoJS.enc.Utf8));// 输出:// ==>>: encrypted= U2FsdGVkX199Zx4YIUHjkJfrKrB3TUA/E+Aqywe6GoU=// decrypted=[717777717777]// decrypted.toString()=[717777717777]// decrypted.toString(CryptoJS.enc.Utf8)=[qwwqww]// qwwqww
}aes_test_wordArray();
aes_test_str();

jsencrypt

npm install jsencrypt
生成密钥对

openssl genrsa -out rsa_1024_priv.pem 1024
cat rsa_1024_priv.pem
---
$ cat rsa_1024_priv.pem
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
---
openssl rsa -pubout -in rsa_1024_priv.pem -out rsa_1024_pub.pem
---
-----BEGIN PUBLIC KEY-----
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbBEOrnpqVKvi16DGMAw2dRDUS
+T05+4XY7J7DxAv2/qj4qAgkPoUyDl9olkS2iHxmr2rRqLDNgFd2YkHnH//kWRN3
8opXJBzPU1friwSSP/7oW+kz2ZpeCFy1TdJi6KYI6awZ2NTU24U8C2snzbfmjniw
5dwX53I5vfaU6CBYfQIDAQAB
-----END PUBLIC KEY--------

RSA

window = this;
const JSEncrypt = require('jsencrypt');// 加密
const public_key = '-----BEGIN PUBLIC KEY-----\n' +'MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbBEOrnpqVKvi16DGMAw2dRDUS\n' +'+T05+4XY7J7DxAv2/qj4qAgkPoUyDl9olkS2iHxmr2rRqLDNgFd2YkHnH//kWRN3\n' +'8opXJBzPU1friwSSP/7oW+kz2ZpeCFy1TdJi6KYI6awZ2NTU24U8C2snzbfmjniw\n' +'5dwX53I5vfaU6CBYfQIDAQAB\n' +'-----END PUBLIC KEY-----'
const crypt = new JSEncrypt();
crypt.setKey(public_key); // crypt.setPublicKey()
const text = 'qwwqww';
const enc_str = crypt.encrypt(text);
console.log(`enc_str=[${enc_str}]`);// 解密
const private_key = '-----BEGIN RSA PRIVATE KEY-----\n' +'MIICXgIBAAKBgQDbBEOrnpqVKvi16DGMAw2dRDUS+T05+4XY7J7DxAv2/qj4qAgk\n' +'PoUyDl9olkS2iHxmr2rRqLDNgFd2YkHnH//kWRN38opXJBzPU1friwSSP/7oW+kz\n' +'2ZpeCFy1TdJi6KYI6awZ2NTU24U8C2snzbfmjniw5dwX53I5vfaU6CBYfQIDAQAB\n' +'AoGBAM20uaJNez8zdxnTlgW9MGJPl9HUSo9VECfoRk30qpA4K5gwqkTwe8XB/haL\n' +'XMpccws3Iwr8d+Lr8jn8m41rXrjrP+irEnxzTYVTvjSaoNQxfICLGuD/mxali+e+\n' +'N1Y90NKUjOn3Xng+rDEp/mi4/cydoCe9FbFF89yIr4i/C4UBAkEA91caCUsrWa+D\n' +'M/vtv/rtu3edwKVUDMA5dGNB6SJZV+dJtENAztxcaO5Ssw56Wj64nWAkc5r7KqwH\n' +'XwHtA/5hYQJBAOKvTL0oNzQqCUQrAX25oz5luoRksBp1L/7wuExcktsaSsTalams\n' +'JaWAZUf1/Xaj6yBhRC79Zy8fvKdauiWCoJ0CQQDTsMXE7IQWx4P4ywcqR76Os4rd\n' +'5eJw41iJR6aSvWZQONE5KlJeefXRjSBUxfBsKsBhWXb5RszvMbtBUmmkAGUhAkBz\n' +'TwqxGdji7xMhmuK6Sojwf5zeJb2y57OPcnG9XkXRsFEiS7JfydKommRqs4XIKN+8\n' +'691cLcikHve/BZa05/q9AkEAlvTDF2W3JdqMPmTP87PpQYZRJyXSdYALquaq+T+h\n' +'Rruxjq1DZw+7LdF1q9SuGn3NYU5FsKMQGZ5ejWZP2IXQGw==\n' +'-----END RSA PRIVATE KEY-----';
const crypt_d = new JSEncrypt();
crypt_d.setKey(private_key);
const dec = crypt_d.decrypt(enc_str);
console.log(`dec_str=[${dec}]`);// ==
// 另一种加密方式
const jscrypt = new JSEncrypt();
const rsa_key = jscrypt.getKey();
// rsa_key.setPublic('publi_key', 'exp_值')
const public_key_ = 'MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbBEOrnpqVKvi16DGMAw2dRDUS+T05+4XY7J7DxAv2/qj4qAgkPoUyDl9olkS2iHxmr2rRqLDNgFd2YkHnH//kWRN38opXJBzPU1friwSSP/7oW+kz2ZpeCFy1TdJi6KYI6awZ2NTU24U8C2snzbfmjniw5dwX53I5vfaU6CBYfQIDAQAB';
rsa_key.setPublic(public_key_)
console.log(rsa_key.encrypt('qwwqww'));//====输出====
enc_str=[go3BXf2TJ5Xsa5zXuGjr/enlpdLM5Y/f2Q7+BQETo4lA6iBlU+zd4aKzEHMF8WHZeZM7hjgY7jEeTzN4QyU6dAW92WZs23IA0ja7G1Ol0zzaQbJdbusPptYMvuQlncUsi2TpdJkXR/uxU9GTmA1/1p1AucLLzt3kFn832k2xDhI=]
dec_str=[qwwqww]
Invalid RSA public key
0e9810cabb7423cd4bbc5ef96ae7ab771f9d2f7d3b503df2d1fc799dff7a098923270a98edecfee365988baa119ec8703c11883246f8313f6028e0439794c8c9f6e39f63eb04a23f543c9f4625fb1255f19502a3e2c633d2599c7037da8a246a3720a669f66ac6c3083b9234e951df8083f66924b45b564fd42e282f8ccc56fe