tags:

views:

42

answers:

2
Q: 

OPENSSL and private key

Hello guys and gals! Openssl is a great security library and I use it from time to time. When I generate RSA keys I have RSA object with private and public key data. OK. Fine. I'm happy with that. I can print private key to the printer. And here come's the question.

Is it possible to create a valid RSA object only from the entered private key (RSA->n)? I made key check and it asks for a valid p and q. OK. I entered p and q. But encrypting is not working properly...any ideas?

TIA!

A: 

Did you make sure you entered p and q primes?

Gil  2010-10-04 22:50:19
In a new RSA structure I entered d, e,p and q values (other data is empty). RSA_check_key accepts RSA structure. But encryption does not work! Maybe it is bad to work with RSA structure directly, but is there any other way?
 2010-10-05 08:01:15
The question is it possible from private key (in hex)
 2010-10-05 08:02:10
"3F710BD31FE80932CE732A181609230C20165D1CDFB3FC4A76B72693F6A56D2A9508BCD16F9DCFE61DA1B4C1F3559F3C19B50E115980C501D8C672B1F4248941" to make a valid private key.
 2010-10-05 08:02:41
A: 

I worked it out. RSA object must have 5 valid variables: n, p, q, d and e. Thanks!

 2010-10-06 17:54:35

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