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/* NOCW */
/*-
* demos/spkigen.c
* 18-Mar-1997 - eay - A quick hack :-)
* version 1.1, it would probably help to save or load the
* private key :-)
*/
#include <stdio.h>
#include <stdlib.h>
#include <openssl/err.h>
#include <openssl/asn1.h>
#include <openssl/objects.h>
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/pem.h>
/*
* The following two don't exist in SSLeay but they are in here as examples
*/
#define PEM_write_SPKI(fp,x) \
PEM_ASN1_write((int (*)())i2d_NETSCAPE_SPKI,"SPKI",fp,\
(char *)x,NULL,NULL,0,NULL)
int SPKI_set_pubkey(NETSCAPE_SPKI *x, EVP_PKEY *pkey);
/* These are defined in the next version of SSLeay */
int EVP_PKEY_assign(EVP_PKEY *pkey, int type, char *key);
#define RSA_F4 0x10001
#define EVP_PKEY_assign_RSA(pkey,rsa) EVP_PKEY_assign((pkey),EVP_PKEY_RSA,\
(char *)(rsa))
int main(argc, argv)
int argc;
char *argv[];
{
RSA *rsa = NULL;
NETSCAPE_SPKI *spki = NULL;
EVP_PKEY *pkey = NULL;
char buf[128];
int ok = 0, i;
FILE *fp;
pkey = EVP_PKEY_new();
if (argc < 2) {
/*
* Generate an RSA key, the random state should have been seeded with
* lots of calls to RAND_seed(....)
*/
fprintf(stderr, "generating RSA key, could take some time...\n");
if ((rsa = RSA_generate_key(512, RSA_F4, NULL)) == NULL)
goto err;
} else {
if ((fp = fopen(argv[1], "r")) == NULL) {
perror(argv[1]);
goto err;
}
if ((rsa = PEM_read_RSAPrivateKey(fp, NULL, NULL)) == NULL)
goto err;
fclose(fp);
}
if (!EVP_PKEY_assign_RSA(pkey, rsa))
goto err;
rsa = NULL;
/* lets make the spki and set the public key and challenge */
if ((spki = NETSCAPE_SPKI_new()) == NULL)
goto err;
if (!SPKI_set_pubkey(spki, pkey))
goto err;
fprintf(stderr, "please enter challenge string:");
fflush(stderr);
buf[0] = '\0';
fgets(buf, sizeof buf, stdin);
i = strlen(buf);
if (i > 0)
buf[--i] = '\0';
if (!ASN1_STRING_set((ASN1_STRING *)spki->spkac->challenge, buf, i))
goto err;
if (!NETSCAPE_SPKI_sign(spki, pkey, EVP_md5()))
goto err;
PEM_write_SPKI(stdout, spki);
if (argc < 2)
PEM_write_RSAPrivateKey(stdout, pkey->pkey.rsa, NULL, NULL, 0, NULL);
ok = 1;
err:
if (!ok) {
fprintf(stderr, "something bad happened....");
ERR_print_errors_fp(stderr);
}
NETSCAPE_SPKI_free(spki);
EVP_PKEY_free(pkey);
exit(!ok);
}
/* This function is in the next version of SSLeay */
int EVP_PKEY_assign(pkey, type, key)
EVP_PKEY *pkey;
int type;
char *key;
{
if (pkey == NULL)
return (0);
if (pkey->pkey.ptr != NULL) {
if (pkey->type == EVP_PKEY_RSA)
RSA_free(pkey->pkey.rsa);
/* else memory leak */
}
pkey->type = type;
pkey->pkey.ptr = key;
return (1);
}
/*
* While I have a X509_set_pubkey() and X509_REQ_set_pubkey(),
* SPKI_set_pubkey() does not currently exist so here is a version of it. The
* next SSLeay release will probably have X509_set_pubkey(),
* X509_REQ_set_pubkey() and NETSCAPE_SPKI_set_pubkey() as macros calling the
* same function
*/
int SPKI_set_pubkey(x, pkey)
NETSCAPE_SPKI *x;
EVP_PKEY *pkey;
{
int ok = 0;
X509_PUBKEY *pk;
X509_ALGOR *a;
ASN1_OBJECT *o;
unsigned char *s, *p;
int i;
if (x == NULL)
return (0);
if ((pk = X509_PUBKEY_new()) == NULL)
goto err;
a = pk->algor;
/* set the algorithm id */
if ((o = OBJ_nid2obj(pkey->type)) == NULL)
goto err;
ASN1_OBJECT_free(a->algorithm);
a->algorithm = o;
/* Set the parameter list */
if ((a->parameter == NULL) || (a->parameter->type != V_ASN1_NULL)) {
ASN1_TYPE_free(a->parameter);
a->parameter = ASN1_TYPE_new();
a->parameter->type = V_ASN1_NULL;
}
i = i2d_PublicKey(pkey, NULL);
if ((s = (unsigned char *)malloc(i + 1)) == NULL)
goto err;
p = s;
i2d_PublicKey(pkey, &p);
if (!ASN1_BIT_STRING_set(pk->public_key, s, i))
goto err;
free(s);
X509_PUBKEY_free(x->spkac->pubkey);
x->spkac->pubkey = pk;
pk = NULL;
ok = 1;
err:
if (pk != NULL)
X509_PUBKEY_free(pk);
return (ok);
}
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