“이 포스팅은 쿠팡 파트너스 활동의 일환으로, 이에 따른 일정액의 수수료를 제공받습니다.”

AES 방식(Key)

var key = 'this is password key'; 
var input = 'This_is_Password!';

var cipher = crypto.createCipher('aes192', key); 
cipher.update(input, 'utf8', 'base64');
var cipheredOutput = cipher.final('base64');

var decipher = crypto.createDecipher('aes192', key); 
decipher.update(cipheredOutput, 'base64', 'utf8'); 
var decipheredOutput = decipher.final('utf8');

console.log('original string: ' + input);
console.log('ciphered string: ' + cipheredOutput);
console.log('deciphered string: ' + decipheredOutput);

http://oraclejavastudy.tistory.com/entry/Nodejs-%EA%B0%95%EC%A2%8C-%EC%9E%90%EB%A3%8C-crypto-%EB%AA%A8%EB%93%88

RSA 방식(public.key, private.key)

var crypto = require('crypto');
//openssl genrsa -out private.key 2048
//openssl rsa -in private.key -out public.key -pubout
var PUBKEY = fs.readFileSync(__dirname+'/public.key');
var PRIVKEY = fs.readFileSync(__dirname+'/private.key');

// RSA PRIVATE ENCRYPT -> PUBLIC DECRYPT //
 myMSG = "This_is_Password!";

function privENC_pubDEC(originMSG){
	encmsg = crypto.privateEncrypt(PRIVKEY, Buffer.from(originMSG, 'utf8') ).toString('base64');
	msg = crypto.publicDecrypt(PUBKEY, Buffer.from(encmsg, 'base64'));
	console.log("Encrypted with private key : "+encmsg);
	console.log(msg.toString());
}
 
function pubENC_privDEC(originMSG){
	encmsg = crypto.publicEncrypt(PUBKEY, Buffer.from(originMSG, 'utf8') ).toString('base64');
	msg = crypto.privateDecrypt(PRIVKEY, Buffer.from(encmsg, 'base64'));
	console.log("\nEncrypted with public key : "+encmsg);
	console.log(msg.toString());
}

privENC_pubDEC(myMSG);
pubENC_privDEC(myMSG);

http://indienote.tistory.com/253