Greetings community,
Alright, I'm trying to serialise a RSA public key and then
deserialise it again; Later the key will be serialised and
then deserialised on the other end of a TCP connection.
For now, I'm just serialising and then deserialising the
key. I've read the other posts to the list on this, but I
haven't had any luck.
Here's my problem - The deserialised key does not match
the original public key:
// Code beginning
int serialisedPublicKeySize = i2d_RSAPublicKey(ourKeyPair->pub_key, NULL);
unsigned char* serialisedPublicKey = new unsigned char[serialisedPublicKeySize];
unsigned char* ptrSerialisedPublicKey = serialisedPublicKey;
serialisedPublicKeySize = i2d_RSAPublicKey(ourKeyPair->pub_key,
&ptrSerialisedPublicKey);
FILE* pub_kfp = fopen("serialised_key.pem", "w");
fwrite(ptrSerialisedPublicKey, sizeof(unsigned char),
serialisedPublicKeySize, pub_kfp);
fclose(pub_kfp);
// I'm correct to use serialisedPublicKey here, right?
RSA* clientPublicKey = d2i_RSAPublicKey(NULL, (const unsigned
char**)&serialisedPublicKey), serialisedPublicKeySize);
// This doesn't work either.
//RSA* clientPublicKey = d2i_RSAPublicKey(NULL, (const unsigned
char**)&ptrSerialisedPublicKey), serialisedPublicKeySize);
int x;
if((x = memcmp(ourKeyPair->pub_key, clientPublicKey,
RSA_size(clientPublicKey))) == 0)
{
printf("Keys match\n");
}
printf("%d\n", x);
// Code end
If I diff the dumped key file with the original public key
file, it of course tells me they differ, although visually
they are identical. I've been hacking away at this now
for a while without any luck. I hope you guys can point
me in the right direction, and that I'm just making some
incredibly stupid mistake.
Thank you in advance for your help.
Conor.
______________________________________________________________________
OpenSSL Project http://www.openssl.org
User Support Mailing List openssl-users@openssl.org
Automated List Manager majord...@openssl.org
