I generated this public key:
-----BEGIN PUBLIC KEY-----
MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBALRdnQqWEqNhxfi7JcWIBBiNPTewfnj+
cI+R918Kg6+Q38gWTIwdUm/6+8CincyF8BRne8HpBYV0kRBFdI4wIaECAwEAAQ==
-----END PUBLIC KEY-----
with this command
openssl rsa -in rsa.private -pubout
Using the "openssl rsautl" command I am able to use this rsa public key
to verify a file that was signed with with my private key. Which is to
say, openssl reads in my public key with no programs.
Unfortunately the following program is unable to read the public key:
#include <openssl/evp.h>
#include <openssl/err.h>
int main(int argc, char **argv)
{
RSA *rsa = (RSA*)PEM_read_RSAPublicKey(stdin,NULL, NULL, NULL);
if (!rsa) {
ERR_print_errors_fp(stderr);
}
printf("rsa is %x\n", rsa);
}
% cc key.c -o key /sw/lib/libcrypto.a && ./key < rsa.public
1015:error:0906D06C:lib(9):func(109):reason(108):pem_lib.c:666:Expecting:
RSA PUBLIC KEY
rsa is 0
%
However the same code works if I use this other public key, which I
found by searching the web for RSA PUBLIC KEY:
-----BEGIN RSA PUBLIC KEY-----
MIGJAoGBANSRRY5E9hNWz+gQh01fgLklMfpwzPB/x+k7DeSymecmImXNGqYk0wvf
XMo5i87c9SRVBlDlkfY7drX9BxnbggEDgRSoMWW4uKCh4rHt0T53N1ZWJb+5WsS5
F3UB8N3rqLw7Aa7ZWnMPnNk7f92ZbewJDrS47ikzsKbo7p/1BELDAgMBAAE=
-----END RSA PUBLIC KEY-----
% cc key.c -o key /sw/lib/libcrypto.a && ./key < rsatest.public
rsa is b0b80
What am I doing wrong? Did I generate the public key incorrectly, or
is my code wrong? I've tried BIO and other methods for reading my
public key, all of which failed. Somehow the openssl command is able
to read my public key, but my code above does not work.
Thanks,
-Jesse
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