Hi List,
I've been battling the following code for a couple of hours armed with
my *Network
Security With OpenSSL* book to little avail.
#include <openssl/rsa.h>
#include <openssl/x509.h>
#include <stdio.h>
extern unsigned char _binary____certificates_der_start;
extern unsigned char _binary____certificates_der_size;
int main(int argc, char argv[]) {
RSA *public_key = NULL;
int public_key_len = (int)&_binary____certificates_der_size;
const unsigned char *public_key_buffer =
&_binary____certificates_der_start;
public_key = d2i_RSAPublicKey(NULL, &public_key_buffer, public_key_len);
if ( !public_key) {
fprintf(stdout, "%s\n", ERR_error_string(ERR_get_error(), NULL));
return 1;
}
printf("Exiting Cleanly\n");
return 0;
}
I'm fairly sure that what I'm doing to inline the object file, and load it
using the extern'ed addresses.
However I'm seeing:
error:0D0680A8:lib(13):func(104):reason(168)
I'm heading in the direction of trying to generate a symmetrical key based
on some random attributes (although this code won't have many sources of
entropy in situ) in order to encrypt something ready to be sent up to a web
server.
The "dir.o" is being built with: "objcopy --input binary --output
elf32-littlearm --binary-architecture arm ../certificates/pubkey.der der.o",
which I believe is correct, although naturally the ".o" file is quite
large, the `&_binary____certificates_der_size` reports the correct size (*
294* in my case).
I've poked around Google and the list archives and couldn't come up with
anything; but I also couldn't come up with results from many people who had
been doing what I am doing (ie. reading from an inlined object blob).
- Lee Hambley
