Re: Encryption not possible with RSA private key??

2006-01-12 Thread Emmanuel Lepavec
Dr. Stephen Henson wrote: > > I've done a quick check setting rsa->e to NULL in rsautl and it seems to work > just fine: the security checks aren't performed if 'e' is NULL. That's using > the -sign option which goes through RSA_private_encrypt(). > > What made you think this function returned -1

Re: Encryption not possible with RSA private key??

2006-01-10 Thread Emmanuel Lepavec
Bernhard Froehlich wrote: >> > If you could detail your intended use it may be clearer for me why you > want to do that. > Remember that it's very easy to do wrong things in cryptographic > applications, so I'm always a bit suspicious if someone has a "non > standard use"... ;) > Actually, I do not

Re: Encryption not possible with RSA private key??

2006-01-09 Thread Emmanuel Lepavec
Victor Duchovni wrote: > > The private key is for signing and decryption, the public key is for > signature verification and encryption... Do not encrypt/decrypt arbitrary > data with RSA (only suitable message digests, session keys, and other > standard uses). > Thanks for your answer. But why d

Encryption not possible with RSA private key??

2006-01-09 Thread Emmanuel Lepavec
Concerning the function: int RSA_private_encrypt(...); This function returns "-1" when the public exponent "e" is NULL. But, as far as I know, the RSA encryption with the private key only needs: - public modulus "n" and - private exponent "d" to be mentioned in the RSA structure. Is the RSA_p