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(). Any ideas? Anybody else experiencing this problem? > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Nils Larsch > Sent: Tuesday, July 19, 2005 12:36 AM > To: openssl-users@openssl.org > Subject: Re: d2i_RSAPublicKey doesn't work > > Edward Chan wrote: > > If you're referring to http://www.openssl.org/support/faq.html > > > > 3. How do I read or write a DER encoded buffer using the > ASN1 functions? > > > > ... > > > > The opposite assumes we already have len bytes in buf: > > > > unsigned char *p; > > p = buf; > > p7 = d2i_PKCS7(NULL, &p, len); > > > > At this point p7 contains a valid PKCS7 structure of NULL > if an error > > occurred. If an error occurred ERR_print_errors(bio) should > give more > > information. > > > > The reason for the temporary variable 'p' is that the ASN1 > functions > > increment the passed pointer so it is ready to read or > write the next > > structure. This is often a cause of problems: without the temporary > > variable the buffer pointer is changed to point just after the data > > that has been read or written. This may well be > uninitialized data and > > attempts to free the buffer will have unpredictable results > because it > > no longer points to the same address. > > > > ------------------------------------------------------ > > > > I see where it says you need to create the temp var. So changed my > > code to do that, but I still get a null ptr returned. > > > > Code is now: > > > > U8* tmp = buf; > > RSA* pub = d2i_RSAPublicKey(0, (const U8**)&tmp, *len); > > and what about i2d_RSAPublicKey ? > > Nils > ______________________________________________________________________ > 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]
