I know RSA is asymmetric (public / private) key. But, is possible to generate only a private key with rsa and using it as symmetric? For example with openssl?

1 Answer 1


A key used for symmetric encryption is usually random. An RSA key is not random and there are only comparable few RSA private keys for a given key length compared to all possible keys of this length. Thus while it in theory could be used as key for symmetric encryption it would be a bad idea.


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