nodejs cifrar rsa privado key ejemplo de código

Ejemplo: cifrado rsa js

//src https://www.sohamkamani.com/nodejs/rsa-encryption///e.g. https://gist.github.com/sohamkamani/b14a9053551dbe59c39f83e25c829ea7////////////////////////////////////////////////////////////////
npm install crypto
///////////////////////////////////////////////////////////////const crypto =require("crypto")// The `generateKeyPairSync` method accepts two arguments:// 1. The type ok keys we want, which in this case is "rsa"// 2. An object with the properties of the keyconst publicKey, privateKey = crypto.generateKeyPairSync("rsa",// The standard secure default length for RSA keys is 2048 bits
	modulusLength:2048,)// use the public and private keys// ...// This is the data we want to encryptconst data ="my secret data"const encryptedData = crypto.publicEncrypt(
		key: publicKey,
		padding: crypto.constants.RSA_PKCS1_OAEP_PADDING,
		oaepHash:"sha512",,// We convert the data string to a buffer using `Buffer.from`Buffer.from(data))// The encrypted data is in the form of bytes, so we print it in base64 format// so that it's displayed in a more readable formconsole.log("encypted data: ", encryptedData.toString("base64"))const decryptedData = crypto.privateDecrypt(
		key: privateKey,// In order to decrypt the data, we need to specify the// same hashing function and padding scheme that we used to// encrypt the data in the previous step
		padding: crypto.constants.RSA_PKCS1_OAEP_PADDING,
		oaepHash:"sha512",,
	encryptedData
)// The decrypted data is of the Buffer type, which we can convert to a// string to reveal the original dataconsole.log("decrypted data: ", decryptedData.toString())// Create some sample data that we want to signconst verifiableData ="this need to be verified"// The signature method takes the data we want to sign, the// hashing algorithm, and the padding scheme, and generates// a signature in the form of bytesconst signature = crypto.sign("sha512",Buffer.from(verifiableData),
	key: privateKey,
	padding: crypto.constants.RSA_PKCS1_PSS_PADDING,)console.log(signature.toString("base64"))// To verify the data, we provide the same hashing algorithm and// padding scheme we provided to generate the signature, along// with the signature itself, the data that we want to// verify against the signature, and the public keyconst isVerified = crypto.verify("sha512",Buffer.from(verifiableData),
		key: publicKey,
		padding: crypto.constants.RSA_PKCS1_PSS_PADDING,,
	signature
)// isVerified should be `true` if the signature is validconsole.log("signature verified: ", isVerified)

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