> I am trying to load a private key in DER format using
> RSA_usePrivateKeyFile without success.
I use this technique for load private key from file.
unsigned char Buffer[2048], *a;
i/* 2048 is enough to store 1024 bit key */
nt len;
RSA *rsa = NULL;
FILE *fp;
fp = fopen("privkey.der", "rb");
if (fp == NULL)
exit(1);
len = fread(Buffer, sizeof(Buffer)-1, sizeof(unsigned char), fp);
fclose(fp);
a = Buffer; /* ATTENTION: pointer a is moved with next function*/
rsa = d2i_RSAPrivateKey(NULL, &a, len);
if (rsa == NULL)
{
ERR_print_errors_fp(stderr);
exit(1);
}
> Is there a utility or segment of code somewhere that I can use to
> convert the DER format to PEM format as that seems to work fine.
fp = fopen("privkey.pem","w");
if (fp == NULL)
exit(1);
result = PEM_write_RSAPrivateKey(fp, rsa, NULL, NULL, 0, NULL,
NULL);
/* If you want to store PrivateKey encrypted you can use
result = PEM_write_RSAPrivateKey(fp, rsa,
EVP_bf_cfb(), // cipher to use for encrypt
key
(unsigned char *)"some password", // your password
strlen("some password"),
NULL, NULL);
*/
if (result <= 0)
{
ERR_print_errors_fp(stderr);
exit(1);
}
That's all
-------------------------------
ing. Jiri Holinek
CD s.o. DATIS o.z.
U Tiskarny 3
702 00 Ostrava
Czech Republic
______________________________________________________________________
OpenSSL Project http://www.openssl.org
Development Mailing List [EMAIL PROTECTED]
Automated List Manager [EMAIL PROTECTED]
