I've been utilizing the NodeJS Crypto module for encryption and decryption with RSA on the backend, while using JSencrypt for frontend RSA operations.
The problem arises when I attempt to encrypt data on the frontend using a public key, resulting in an error being thrown by the backend (Note: I'm implementing this in NuxtJS and utilizing the import function).
const { JSEncrypt } = await import('jsencrypt')
const rsa = new JSEncrypt({ default_key_size: 1024 })
rsa.setPublicKey(store.state.publicKey)
const xKey = rsa.encrypt(store.state.ticket)
Subsequently, when trying to decrypt the encoded data on the backend, the following error is generated:
Error: error:04099079:rsa routines:RSA_padding_check_PKCS1_OAEP_mgf1:oaep decoding error
Showcased below is the backend code employed for RSA decryption utilizing the private key:
const privateKey = fs.readFileSync('RSA_private.key', { encoding: 'utf8' })
exports.RSAdecrypt = async (data) => {
const buffer = Buffer.from(data, "base64")
const decrypted = crypto.privateDecrypt(privateKey, buffer)
return decrypted.toString('utf8')
}