Too much data for RSA block fail. What is PKCS#7?

Question

Talking about javax.crypto.Cipher

I was trying to encrypt data using Cipher.getInstance(\"RSA/None/NoPadding\", \"BC\") but I got the excep

Answer 1

You should not encrypt your data using RSA directly. Encrypt your data with a random symmetric key (i.e. AES/CBC/PKCS5Padding) and encrypt the symmetric key using RSA/None/PKCS1Padding.