> In that case, is there some function in openssl to chain several
> encrypts/decrypts together, so I can use the RSA functions to encrypt a
> DH key exchange?
>
> Otherwise I'm just going to have to write some sort of splitting and
> chaining operation, that splits the message up into chunks of under
> RSA_size, encrypts each chunk as a separate operation, etc. Is this what
> is normally done in this sort of situation?
I'm baffled why you're trying to encrypt a public key. There should be no
need to.
In any event, if you do need to encrypt a larger-sized object, you've
already been told how to do it. Generate a random key, encrypt the object
with that random key using a symmetric cipher, and then encrypt the random
key using RSA.
DS
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