Hmm, well, I guess I assumed i2d_RSAPublicKey() was ok since the RSA key seems fine (I ran RSA_check_key() on it and it says it is ok). Is there any reason why i2d_RSAPublicKey() would not be returning me valid data?
int len = i2d_RSAPublicKey(rsa, 0); returns me something > 0, so I assumed that it is fine. Wouldn't this return -1 if it failed? I am using the RSA_public_encrypt and RSA_private_decrypt functions because that is what I found in the OpenSSL book I've been using as a reference. Should I be using something else? Is there an alternative to the i2d* methods for converting the public and private portions of the RSA key to some serializable form? As for the usage of i2d_RSAPublicKey(), it is as the book says. I call it once to find the size of the buffer required. Then I allocate the buffer. Then call it again to actually fill the buffer. Is this not correct? Thanks, Ed > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Dr. > Stephen Henson > Sent: Wednesday, July 20, 2005 5:48 PM > To: openssl-users@openssl.org > Subject: Re: d2i_RSAPublicKey doesn't work > > On Tue, Jul 19, 2005, Edward Chan wrote: > > > That part of the code remains the same, and continues to > work fine. > > By the way, my last code snippet should have been: > > > > U8* tmp = buf; > > RSA* pub = d2i_RSAPublicKey(0, (const U8**)&tmp, len); > > > > I mistakenly typed *len instead of len. > > > > Anyways, after I call i2d_RSAPublicKey, calling > d2i_RSAPublicKey does > > not seem to work. It always returns me a null ptr. But I > know the RSA > > object is fine. I can use it in RSA_public_encrypt() and > > RSA_private_decrypt(). > > > > What makes you think the way i2d_RSAPublicKey is being called > is producing valid data? Try dumping the data in 'tmp' to a > file and using: > > openssl asn1parse -inform DER -in whatever > > if the result is an error message or what looks like garbage > then its a problem with the usage of i2d_RSAPublicKey. If it > looks like the public key components then it is OK. > > BTW is there some reason you are using the RSAPublicKey > functions? If you use the RSA_PUBKEY versions instead the > OpenSSL utilities will be able to check the format directly. > > Steve. > -- > Dr Stephen N. Henson. Email, S/MIME and PGP keys: see > homepage OpenSSL project core developer and freelance consultant. > Funding needed! Details on homepage. > Homepage: http://www.drh-consultancy.demon.co.uk > ______________________________________________________________________ > OpenSSL Project http://www.openssl.org > User Support Mailing List openssl-users@openssl.org > Automated List Manager [EMAIL PROTECTED] > ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager [EMAIL PROTECTED]
