You got it. Call RSA_new() to allocate and initialize the RSA struct, the
BN_bin2bn to generate the BIGNUM's. Something along the following lines
should do it:
RSA* rsa = RSA_new();
rsa->n = BN_bin2bn(modulus, modulus_size, NULL);
rsa->e = BN_bin2bn(exponent, exponent_size, NULL);
Regards,
Steven
--
Steven Reddie <[EMAIL PROTECTED]>
Senior Software Engineer
Computer Associates Pty Ltd (Australia)
> -----Original Message-----
> From: bruce cartland [SMTP:[EMAIL PROTECTED]]
> Sent: Friday, March 09, 2001 9:16 AM
> To: [EMAIL PROTECTED]
> Subject: How do I construct an instance of RSA using n & e
>
> I have n (the public modulus) and e (the public exponent). No nicely
> encoded data. Given those two values is there an API set to construct the
> RSA (public key) structure? I'm guessing I'd have to create a BIGNUM first
> then ..? Nothing obvious in rsa.h. Would it be reasonable to create a new
> RSA struct then set the pointers directly?
> thanks
>
> bruce
>
>
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