Node.js的RSA非对称加解密

川长思鸟来 2023-10-10 09:42 50阅读 0赞

# RSA非对称加解密 #

const writeData = '哈哈哈';
    
    const publicKey = `-----BEGIN PUBLIC KEY-----
    MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDVjuVnj34QuRwmBxVCU1Fk+IuY
    CAANchHQGeDnnAbGUWYOIsIKCMVCDYlQqL0GL6sC5Jpx3M6GSQUgxL1SR2hYqOva
    xfUCYRKlRcLBbraCqlc7rC+FrFLxctLS7POks/lJSEGXkM7wrka73V+w2nvTx52+
    5RpFzbn7XOFo4cvzLwIDAQAB
    -----END PUBLIC KEY-----
    `;
    
    const privateKey = `-----BEGIN RSA PRIVATE KEY-----
    MIICXgIBAAKBgQDVjuVnj34QuRwmBxVCU1Fk+IuYCAANchHQGeDnnAbGUWYOIsIK
    CMVCDYlQqL0GL6sC5Jpx3M6GSQUgxL1SR2hYqOvaxfUCYRKlRcLBbraCqlc7rC+F
    rFLxctLS7POks/lJSEGXkM7wrka73V+w2nvTx52+5RpFzbn7XOFo4cvzLwIDAQAB
    AoGAbwvU4drNdKisqGF6fniQlG5hN/bBADzWYl1ygzywkSL2bFdKiqkw2T3srxJu
    5+6Vf/WbEaX9hfomPnnO8B/Nc4iqwVqocIK2P8/7IlcqbRvFTOOJWcX0W3ubo54y
    jf5HGTyqbeO5lT7E+7TdGP6GUSjYpdWYxZI6Yya3sy3ZDuECQQD+ZgF/ivhwlUZD
    DSoioUX9NgQcvDkZ/kilOdJtaQFT1tqQPFqLUqFGLRVME9lUWFRfkJw5ZHShbt0J
    3zFtSFAHAkEA1ucSOMYN4dXUonDxOxHTDbfgVnI4+FR/k5hgcenFXpBTBAQjLaoo
    QCI52jvEU2BkzfpdagTpWs8kYsNHxmUpmQJBAPCJZnU/4zQgEHUpp2Ni9Zg7UJwS
    5DLNmcaP64UDufuZtMKYLkx5bn+59N8gDWeQtQY+51fkwdo5xsmkvUlFDFUCQQCX
    r03LSPAvgTCu361FllU0D5+HJORVU78gvKMGhIzNLG2MHid+aeYzLnVLNnhiqV09
    jgQ1evYDJMZ394JH5MuxAkEAqtJf9AiKzI+hJtEKTuvhDC1UROyyocny6fcw5hBJ
    hjHY8MCRdWUvmwChK0N1uhM/z3lHa8fwyQRREgUSDPeB+A==
    -----END RSA PRIVATE KEY-----
    `;
    
    const path = '保存文件的地址';
    
    
    
    //加密
    const publicKeyData = crypto.publicEncrypt(publicKey, Buffer.from(writeData));
    // Buffer转为JSON
    fs.writeFileSync(path, JSON.stringify(publicKeyData.toJSON()), function(err) { 
    	if (err) console.error(err);
    });
    
    const data = fs.readFileSync(path, 'utf-8');
    // 解密
    const bufferData = JSON.parse(data);
    const buffer = Buffer.from(bufferData.data); // JSON转为Buffer
    const readData = crypto.privateDecrypt(privateKey, buffer);
    
    console.log(readData);   // 哈哈哈