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673b102c5b
openssl/apps/x509.c
Dr. Stephen Henson 673b102c5b Initial support for certificate purpose checking: this will 
ultimately lead to certificate chain verification. It is
VERY EXPERIMENTAL at present though.
1999-10-13 01:11:56 +00:00

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/* apps/x509.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef NO_STDIO
#define APPS_WIN16
#endif
#include "apps.h"
#include <openssl/bio.h>
#include <openssl/asn1.h>
#include <openssl/err.h>
#include <openssl/bn.h>
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#include <openssl/objects.h>
#include <openssl/pem.h>
#undef PROG
#define PROG x509_main
#undef POSTFIX
#define POSTFIX ".srl"
#define DEF_DAYS 30
#define CERT_HDR "certificate"
static char *x509_usage[]={
"usage: x509 args\n",
" -inform arg - input format - default PEM (one of DER, NET or PEM)\n",
" -outform arg - output format - default PEM (one of DER, NET or PEM)\n",
" -keyform arg - private key format - default PEM\n",
" -CAform arg - CA format - default PEM\n",
" -CAkeyform arg - CA key format - default PEM\n",
" -in arg - input file - default stdin\n",
" -out arg - output file - default stdout\n",
" -serial - print serial number value\n",
" -hash - print hash value\n",
" -subject - print subject DN\n",
" -issuer - print issuer DN\n",
" -startdate - notBefore field\n",
" -enddate - notAfter field\n",
" -purpose - print out certificate purposes\n",
" -dates - both Before and After dates\n",
" -modulus - print the RSA key modulus\n",
" -fingerprint - print the certificate fingerprint\n",
" -noout - no certificate output\n",
" -days arg - How long till expiry of a signed certificate - def 30 days\n",
" -signkey arg - self sign cert with arg\n",
" -x509toreq - output a certification request object\n",
" -req - input is a certificate request, sign and output.\n",
" -CA arg - set the CA certificate, must be PEM format.\n",
" -CAkey arg - set the CA key, must be PEM format\n",
" missing, it is asssumed to be in the CA file.\n",
" -CAcreateserial - create serial number file if it does not exist\n",
" -CAserial - serial file\n",
" -text - print the certificate in text form\n",
" -C - print out C code forms\n",
" -md2/-md5/-sha1/-mdc2 - digest to do an RSA sign with\n",
" -extfile - configuration file with X509V3 extensions to add\n",
" -extensions - section from config file with X509V3 extensions to add\n",
NULL
};
static int MS_CALLBACK callb(int ok, X509_STORE_CTX *ctx);
static EVP_PKEY *load_key(char *file, int format);
static X509 *load_cert(char *file, int format);
static int sign (X509 *x, EVP_PKEY *pkey,int days,const EVP_MD *digest,
LHASH *conf, char *section);
static int x509_certify (X509_STORE *ctx,char *CAfile,const EVP_MD *digest,
X509 *x,X509 *xca,EVP_PKEY *pkey,char *serial,
int create,int days, LHASH *conf, char *section);
static int efunc(X509_PURPOSE *pt, void *arg);
static int reqfile=0;
typedef struct {
BIO *bio;
X509 *cert;
} X509_PPRINT;
int MAIN(int argc, char **argv)
{
int ret=1;
X509_REQ *req=NULL;
X509 *x=NULL,*xca=NULL;
EVP_PKEY *Upkey=NULL,*CApkey=NULL;
int i,num,badops=0;
BIO *out=NULL;
BIO *STDout=NULL;
int informat,outformat,keyformat,CAformat,CAkeyformat;
char *infile=NULL,*outfile=NULL,*keyfile=NULL,*CAfile=NULL;
char *CAkeyfile=NULL,*CAserial=NULL;
int text=0,serial=0,hash=0,subject=0,issuer=0,startdate=0,enddate=0;
int noout=0,sign_flag=0,CA_flag=0,CA_createserial=0;
int C=0;
int x509req=0,days=DEF_DAYS,modulus=0;
int pprint = 0;
char **pp;
X509_STORE *ctx=NULL;
X509_REQ *rq=NULL;
int fingerprint=0;
char buf[256];
const EVP_MD *md_alg,*digest=EVP_md5();
LHASH *extconf = NULL;
char *extsect = NULL, *extfile = NULL;
reqfile=0;
apps_startup();
if (bio_err == NULL)
bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
STDout=BIO_new_fp(stdout,BIO_NOCLOSE);
informat=FORMAT_PEM;
outformat=FORMAT_PEM;
keyformat=FORMAT_PEM;
CAformat=FORMAT_PEM;
CAkeyformat=FORMAT_PEM;
ctx=X509_STORE_new();
if (ctx == NULL) goto end;
X509_STORE_set_verify_cb_func(ctx,callb);
argc--;
argv++;
num=0;
while (argc >= 1)
{
if (strcmp(*argv,"-inform") == 0)
{
if (--argc < 1) goto bad;
informat=str2fmt(*(++argv));
}
else if (strcmp(*argv,"-outform") == 0)
{
if (--argc < 1) goto bad;
outformat=str2fmt(*(++argv));
}
else if (strcmp(*argv,"-keyform") == 0)
{
if (--argc < 1) goto bad;
keyformat=str2fmt(*(++argv));
}
else if (strcmp(*argv,"-req") == 0)
reqfile=1;
else if (strcmp(*argv,"-CAform") == 0)
{
if (--argc < 1) goto bad;
CAformat=str2fmt(*(++argv));
}
else if (strcmp(*argv,"-CAkeyform") == 0)
{
if (--argc < 1) goto bad;
CAformat=str2fmt(*(++argv));
}
else if (strcmp(*argv,"-days") == 0)
{
if (--argc < 1) goto bad;
days=atoi(*(++argv));
if (days == 0)
{
BIO_printf(STDout,"bad number of days\n");
goto bad;
}
}
else if (strcmp(*argv,"-extfile") == 0)
{
if (--argc < 1) goto bad;
extfile= *(++argv);
}
else if (strcmp(*argv,"-extensions") == 0)
{
if (--argc < 1) goto bad;
extsect= *(++argv);
}
else if (strcmp(*argv,"-in") == 0)
{
if (--argc < 1) goto bad;
infile= *(++argv);
}
else if (strcmp(*argv,"-out") == 0)
{
if (--argc < 1) goto bad;
outfile= *(++argv);
}
else if (strcmp(*argv,"-signkey") == 0)
{
if (--argc < 1) goto bad;
keyfile= *(++argv);
sign_flag= ++num;
}
else if (strcmp(*argv,"-CA") == 0)
{
if (--argc < 1) goto bad;
CAfile= *(++argv);
CA_flag= ++num;
}
else if (strcmp(*argv,"-CAkey") == 0)
{
if (--argc < 1) goto bad;
CAkeyfile= *(++argv);
}
else if (strcmp(*argv,"-CAserial") == 0)
{
if (--argc < 1) goto bad;
CAserial= *(++argv);
}
else if (strcmp(*argv,"-C") == 0)
C= ++num;
else if (strcmp(*argv,"-serial") == 0)
serial= ++num;
else if (strcmp(*argv,"-modulus") == 0)
modulus= ++num;
else if (strcmp(*argv,"-x509toreq") == 0)
x509req= ++num;
else if (strcmp(*argv,"-text") == 0)
text= ++num;
else if (strcmp(*argv,"-hash") == 0)
hash= ++num;
else if (strcmp(*argv,"-subject") == 0)
subject= ++num;
else if (strcmp(*argv,"-issuer") == 0)
issuer= ++num;
else if (strcmp(*argv,"-fingerprint") == 0)
fingerprint= ++num;
else if (strcmp(*argv,"-dates") == 0)
{
startdate= ++num;
enddate= ++num;
}
else if (strcmp(*argv,"-purpose") == 0)
pprint= ++num;
else if (strcmp(*argv,"-startdate") == 0)
startdate= ++num;
else if (strcmp(*argv,"-enddate") == 0)
enddate= ++num;
else if (strcmp(*argv,"-noout") == 0)
noout= ++num;
else if (strcmp(*argv,"-CAcreateserial") == 0)
CA_createserial= ++num;
else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
{
/* ok */
digest=md_alg;
}
else
{
BIO_printf(bio_err,"unknown option %s\n",*argv);
badops=1;
break;
}
argc--;
argv++;
}
if (badops)
{
bad:
for (pp=x509_usage; (*pp != NULL); pp++)
BIO_printf(bio_err,*pp);
goto end;
}
ERR_load_crypto_strings();
X509V3_add_standard_extensions();
X509_PURPOSE_add_standard();
if (!X509_STORE_set_default_paths(ctx))
{
ERR_print_errors(bio_err);
goto end;
}
if ((CAkeyfile == NULL) && (CA_flag) && (CAformat == FORMAT_PEM))
{ CAkeyfile=CAfile; }
else if ((CA_flag) && (CAkeyfile == NULL))
{
BIO_printf(bio_err,"need to specify a CAkey if using the CA command\n");
goto end;
}
if (extfile) {
long errorline;
X509V3_CTX ctx2;
if (!(extconf=CONF_load(NULL,extfile,&errorline))) {
if (errorline <= 0)
BIO_printf(bio_err,
"error loading the config file '%s'\n",
extfile);
else
BIO_printf(bio_err,
"error on line %ld of config file '%s'\n"
,errorline,extfile);
goto end;
}
if(!extsect && !(extsect = CONF_get_string(extconf, "default",
"extensions"))) extsect = "default";
X509V3_set_ctx_test(&ctx2);
X509V3_set_conf_lhash(&ctx2, extconf);
if(!X509V3_EXT_add_conf(extconf, &ctx2, extsect, NULL)) {
BIO_printf(bio_err,
"Error Loading extension section %s\n",
extsect);
ERR_print_errors(bio_err);
goto end;
}
}
if (reqfile)
{
EVP_PKEY *pkey;
X509_CINF *ci;
BIO *in;
if (!sign_flag && !CA_flag)
{
BIO_printf(bio_err,"We need a private key to sign with\n");
goto end;
}
in=BIO_new(BIO_s_file());
if (in == NULL)
{
ERR_print_errors(bio_err);
goto end;
}
if (infile == NULL)
BIO_set_fp(in,stdin,BIO_NOCLOSE|BIO_FP_TEXT);
else
{
if (BIO_read_filename(in,infile) <= 0)
{
perror(infile);
goto end;
}
}
req=PEM_read_bio_X509_REQ(in,NULL,NULL,NULL);
BIO_free(in);
if (req == NULL) { perror(infile); goto end; }
if ( (req->req_info == NULL) ||
(req->req_info->pubkey == NULL) ||
(req->req_info->pubkey->public_key == NULL) ||
(req->req_info->pubkey->public_key->data == NULL))
{
BIO_printf(bio_err,"The certificate request appears to corrupted\n");
BIO_printf(bio_err,"It does not contain a public key\n");
goto end;
}
if ((pkey=X509_REQ_get_pubkey(req)) == NULL)
{
BIO_printf(bio_err,"error unpacking public key\n");
goto end;
}
i=X509_REQ_verify(req,pkey);
EVP_PKEY_free(pkey);
if (i < 0)
{
BIO_printf(bio_err,"Signature verification error\n");
ERR_print_errors(bio_err);
goto end;
}
if (i == 0)
{
BIO_printf(bio_err,"Signature did not match the certificate request\n");
goto end;
}
else
BIO_printf(bio_err,"Signature ok\n");
X509_NAME_oneline(req->req_info->subject,buf,256);
BIO_printf(bio_err,"subject=%s\n",buf);
if ((x=X509_new()) == NULL) goto end;
ci=x->cert_info;
if (!ASN1_INTEGER_set(X509_get_serialNumber(x),0)) goto end;
if (!X509_set_issuer_name(x,req->req_info->subject)) goto end;
if (!X509_set_subject_name(x,req->req_info->subject)) goto end;
X509_gmtime_adj(X509_get_notBefore(x),0);
X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days);
#if 0
X509_PUBKEY_free(ci->key);
ci->key=req->req_info->pubkey;
req->req_info->pubkey=NULL;
#else
pkey = X509_REQ_get_pubkey(req);
X509_set_pubkey(x,pkey);
EVP_PKEY_free(pkey);
#endif
}
else
x=load_cert(infile,informat);
if (x == NULL) goto end;
if (CA_flag)
{
xca=load_cert(CAfile,CAformat);
if (xca == NULL) goto end;
}
if (!noout || text)
{
OBJ_create("2.99999.3",
"SET.ex3","SET x509v3 extension 3");
out=BIO_new(BIO_s_file());
if (out == NULL)
{
ERR_print_errors(bio_err);
goto end;
}
if (outfile == NULL)
BIO_set_fp(out,stdout,BIO_NOCLOSE);
else
{
if (BIO_write_filename(out,outfile) <= 0)
{
perror(outfile);
goto end;
}
}
}
if (num)
{
for (i=1; i<=num; i++)
{
if (issuer == i)
{
X509_NAME_oneline(X509_get_issuer_name(x),
buf,256);
BIO_printf(STDout,"issuer= %s\n",buf);
}
else if (subject == i)
{
X509_NAME_oneline(X509_get_subject_name(x),
buf,256);
BIO_printf(STDout,"subject=%s\n",buf);
}
else if (serial == i)
{
BIO_printf(STDout,"serial=");
i2a_ASN1_INTEGER(STDout,x->cert_info->serialNumber);
BIO_printf(STDout,"\n");
}
else if (hash == i)
{
BIO_printf(STDout,"%08lx\n",X509_subject_name_hash(x));
}
else if (pprint == i)
{
X509_PPRINT ptmp;
ptmp.bio = STDout;
ptmp.cert = x;
BIO_printf(STDout, "Certificate purposes:\n");
X509_PURPOSE_enum(efunc, &ptmp);
}
else
if (modulus == i)
{
EVP_PKEY *pkey;
pkey=X509_get_pubkey(x);
if (pkey == NULL)
{
BIO_printf(bio_err,"Modulus=unavailable\n");
ERR_print_errors(bio_err);
goto end;
}
BIO_printf(STDout,"Modulus=");
#ifndef NO_RSA
if (pkey->type == EVP_PKEY_RSA)
BN_print(STDout,pkey->pkey.rsa->n);
else
#endif
#ifndef NO_DSA
if (pkey->type == EVP_PKEY_DSA)
BN_print(STDout,pkey->pkey.dsa->pub_key);
else
#endif
BIO_printf(STDout,"Wrong Algorithm type");
BIO_printf(STDout,"\n");
EVP_PKEY_free(pkey);
}
else
if (C == i)
{
unsigned char *d;
char *m;
int y,z;
X509_NAME_oneline(X509_get_subject_name(x),
buf,256);
BIO_printf(STDout,"/* subject:%s */\n",buf);
m=X509_NAME_oneline(
X509_get_issuer_name(x),buf,256);
BIO_printf(STDout,"/* issuer :%s */\n",buf);
z=i2d_X509(x,NULL);
m=Malloc(z);
d=(unsigned char *)m;
z=i2d_X509_NAME(X509_get_subject_name(x),&d);
BIO_printf(STDout,"unsigned char XXX_subject_name[%d]={\n",z);
d=(unsigned char *)m;
for (y=0; y<z; y++)
{
BIO_printf(STDout,"0x%02X,",d[y]);
if ((y & 0x0f) == 0x0f) BIO_printf(STDout,"\n");
}
if (y%16 != 0) BIO_printf(STDout,"\n");
BIO_printf(STDout,"};\n");
z=i2d_X509_PUBKEY(X509_get_X509_PUBKEY(x),&d);
BIO_printf(STDout,"unsigned char XXX_public_key[%d]={\n",z);
d=(unsigned char *)m;
for (y=0; y<z; y++)
{
BIO_printf(STDout,"0x%02X,",d[y]);
if ((y & 0x0f) == 0x0f)
BIO_printf(STDout,"\n");
}
if (y%16 != 0) BIO_printf(STDout,"\n");
BIO_printf(STDout,"};\n");
z=i2d_X509(x,&d);
BIO_printf(STDout,"unsigned char XXX_certificate[%d]={\n",z);
d=(unsigned char *)m;
for (y=0; y<z; y++)
{
BIO_printf(STDout,"0x%02X,",d[y]);
if ((y & 0x0f) == 0x0f)
BIO_printf(STDout,"\n");
}
if (y%16 != 0) BIO_printf(STDout,"\n");
BIO_printf(STDout,"};\n");
Free(m);
}
else if (text == i)
{
X509_print(out,x);
}
else if (startdate == i)
{
BIO_puts(STDout,"notBefore=");
ASN1_TIME_print(STDout,X509_get_notBefore(x));
BIO_puts(STDout,"\n");
}
else if (enddate == i)
{
BIO_puts(STDout,"notAfter=");
ASN1_TIME_print(STDout,X509_get_notAfter(x));
BIO_puts(STDout,"\n");
}
else if (fingerprint == i)
{
int j;
unsigned int n;
unsigned char md[EVP_MAX_MD_SIZE];
if (!X509_digest(x,EVP_md5(),md,&n))
{
BIO_printf(bio_err,"out of memory\n");
goto end;
}
BIO_printf(STDout,"MD5 Fingerprint=");
for (j=0; j<(int)n; j++)
{
BIO_printf(STDout,"%02X%c",md[j],
(j+1 == (int)n)
?'\n':':');
}
}
/* should be in the library */
else if ((sign_flag == i) && (x509req == 0))
{
BIO_printf(bio_err,"Getting Private key\n");
if (Upkey == NULL)
{
Upkey=load_key(keyfile,keyformat);
if (Upkey == NULL) goto end;
}
#ifndef NO_DSA
if (Upkey->type == EVP_PKEY_DSA)
digest=EVP_dss1();
#endif
if (!sign(x,Upkey,days,digest,
extconf, extsect)) goto end;
}
else if (CA_flag == i)
{
BIO_printf(bio_err,"Getting CA Private Key\n");
if (CAkeyfile != NULL)
{
CApkey=load_key(CAkeyfile,CAkeyformat);
if (CApkey == NULL) goto end;
}
#ifndef NO_DSA
if (CApkey->type == EVP_PKEY_DSA)
digest=EVP_dss1();
#endif
if (!x509_certify(ctx,CAfile,digest,x,xca,
CApkey, CAserial,CA_createserial,days,
extconf, extsect))
goto end;
}
else if (x509req == i)
{
EVP_PKEY *pk;
BIO_printf(bio_err,"Getting request Private Key\n");
if (keyfile == NULL)
{
BIO_printf(bio_err,"no request key file specified\n");
goto end;
}
else
{
pk=load_key(keyfile,FORMAT_PEM);
if (pk == NULL) goto end;
}
BIO_printf(bio_err,"Generating certificate request\n");
rq=X509_to_X509_REQ(x,pk,EVP_md5());
EVP_PKEY_free(pk);
if (rq == NULL)
{
ERR_print_errors(bio_err);
goto end;
}
if (!noout)
{
X509_REQ_print(out,rq);
PEM_write_bio_X509_REQ(out,rq);
}
noout=1;
}
}
}
if (noout)
{
ret=0;
goto end;
}
if (outformat == FORMAT_ASN1)
i=i2d_X509_bio(out,x);
else if (outformat == FORMAT_PEM)
i=PEM_write_bio_X509(out,x);
else if (outformat == FORMAT_NETSCAPE)
{
ASN1_HEADER ah;
ASN1_OCTET_STRING os;
os.data=(unsigned char *)CERT_HDR;
os.length=strlen(CERT_HDR);
ah.header= &os;
ah.data=(char *)x;
ah.meth=X509_asn1_meth();
/* no macro for this one yet */
i=ASN1_i2d_bio(i2d_ASN1_HEADER,out,(unsigned char *)&ah);
}
else {
BIO_printf(bio_err,"bad output format specified for outfile\n");
goto end;
}
if (!i) {
BIO_printf(bio_err,"unable to write certificate\n");
ERR_print_errors(bio_err);
goto end;
}
ret=0;
end:
OBJ_cleanup();
CONF_free(extconf);
BIO_free(out);
BIO_free(STDout);
X509_STORE_free(ctx);
X509_REQ_free(req);
X509_free(x);
X509_free(xca);
EVP_PKEY_free(Upkey);
EVP_PKEY_free(CApkey);
X509_REQ_free(rq);
X509V3_EXT_cleanup();
EXIT(ret);
}
static int x509_certify(X509_STORE *ctx, char *CAfile, const EVP_MD *digest,
X509 *x, X509 *xca, EVP_PKEY *pkey, char *serialfile, int create,
int days, LHASH *conf, char *section)
{
int ret=0;
BIO *io=NULL;
MS_STATIC char buf2[1024];
char *buf=NULL,*p;
BIGNUM *serial=NULL;
ASN1_INTEGER *bs=NULL,bs2;
X509_STORE_CTX xsc;
EVP_PKEY *upkey;
upkey = X509_get_pubkey(xca);
EVP_PKEY_copy_parameters(upkey,pkey);
EVP_PKEY_free(upkey);
X509_STORE_CTX_init(&xsc,ctx,x,NULL);
buf=(char *)Malloc(EVP_PKEY_size(pkey)*2+
((serialfile == NULL)
?(strlen(CAfile)+strlen(POSTFIX)+1)
:(strlen(serialfile)))+1);
if (buf == NULL) { BIO_printf(bio_err,"out of mem\n"); goto end; }
if (serialfile == NULL)
{
strcpy(buf,CAfile);
for (p=buf; *p; p++)
if (*p == '.')
{
*p='\0';
break;
}
strcat(buf,POSTFIX);
}
else
strcpy(buf,serialfile);
serial=BN_new();
bs=ASN1_INTEGER_new();
if ((serial == NULL) || (bs == NULL))
{
ERR_print_errors(bio_err);
goto end;
}
io=BIO_new(BIO_s_file());
if (io == NULL)
{
ERR_print_errors(bio_err);
goto end;
}
if (BIO_read_filename(io,buf) <= 0)
{
if (!create)
{
perror(buf);
goto end;
}
else
{
ASN1_INTEGER_set(bs,0);
BN_zero(serial);
}
}
else
{
if (!a2i_ASN1_INTEGER(io,bs,buf2,1024))
{
BIO_printf(bio_err,"unable to load serial number from %s\n",buf);
ERR_print_errors(bio_err);
goto end;
}
else
{
serial=BN_bin2bn(bs->data,bs->length,serial);
if (serial == NULL)
{
BIO_printf(bio_err,"error converting bin 2 bn");
goto end;
}
}
}
if (!BN_add_word(serial,1))
{ BIO_printf(bio_err,"add_word failure\n"); goto end; }
bs2.data=(unsigned char *)buf2;
bs2.length=BN_bn2bin(serial,bs2.data);
if (BIO_write_filename(io,buf) <= 0)
{
BIO_printf(bio_err,"error attempting to write serial number file\n");
perror(buf);
goto end;
}
i2a_ASN1_INTEGER(io,&bs2);
BIO_puts(io,"\n");
BIO_free(io);
io=NULL;
if (!X509_STORE_add_cert(ctx,x)) goto end;
/* NOTE: this certificate can/should be self signed, unless it was
* a certificate request in which case it is not. */
X509_STORE_CTX_set_cert(&xsc,x);
if (!reqfile && !X509_verify_cert(&xsc))
goto end;
if (!X509_check_private_key(xca,pkey))
{
BIO_printf(bio_err,"CA certificate and CA private key do not match\n");
goto end;
}
if (!X509_set_issuer_name(x,X509_get_subject_name(xca))) goto end;
if (!X509_set_serialNumber(x,bs)) goto end;
if (X509_gmtime_adj(X509_get_notBefore(x),0L) == NULL)
goto end;
/* hardwired expired */
if (X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days) == NULL)
goto end;
if(conf) {
X509V3_CTX ctx2;
X509_set_version(x,2); /* version 3 certificate */
X509V3_set_ctx(&ctx2, xca, x, NULL, NULL, 0);
X509V3_set_conf_lhash(&ctx2, conf);
if(!X509V3_EXT_add_conf(conf, &ctx2, section, x)) goto end;
}
if (!X509_sign(x,pkey,digest)) goto end;
ret=1;
end:
X509_STORE_CTX_cleanup(&xsc);
if (!ret)
ERR_print_errors(bio_err);
if (buf != NULL) Free(buf);
if (bs != NULL) ASN1_INTEGER_free(bs);
if (io != NULL) BIO_free(io);
if (serial != NULL) BN_free(serial);
return(ret);
}
static int MS_CALLBACK callb(int ok, X509_STORE_CTX *ctx)
{
char buf[256];
int err;
X509 *err_cert;
/* it is ok to use a self signed certificate
* This case will catch both the initial ok == 0 and the
* final ok == 1 calls to this function */
err=X509_STORE_CTX_get_error(ctx);
if (err == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT)
return(1);
/* BAD we should have gotten an error. Normally if everything
* worked X509_STORE_CTX_get_error(ctx) will still be set to
* DEPTH_ZERO_SELF_.... */
if (ok)
{
BIO_printf(bio_err,"error with certificate to be certified - should be self signed\n");
return(0);
}
else
{
err_cert=X509_STORE_CTX_get_current_cert(ctx);
X509_NAME_oneline(X509_get_subject_name(err_cert),buf,256);
BIO_printf(bio_err,"%s\n",buf);
BIO_printf(bio_err,"error with certificate - error %d at depth %d\n%s\n",
err,X509_STORE_CTX_get_error_depth(ctx),
X509_verify_cert_error_string(err));
return(1);
}
}
static EVP_PKEY *load_key(char *file, int format)
{
BIO *key=NULL;
EVP_PKEY *pkey=NULL;
if (file == NULL)
{
BIO_printf(bio_err,"no keyfile specified\n");
goto end;
}
key=BIO_new(BIO_s_file());
if (key == NULL)
{
ERR_print_errors(bio_err);
goto end;
}
if (BIO_read_filename(key,file) <= 0)
{
perror(file);
goto end;
}
#ifndef NO_RSA
if (format == FORMAT_ASN1)
{
RSA *rsa;
rsa=d2i_RSAPrivateKey_bio(key,NULL);
if (rsa != NULL)
{
if ((pkey=EVP_PKEY_new()) != NULL)
EVP_PKEY_assign_RSA(pkey,rsa);
else
RSA_free(rsa);
}
}
else
#endif
if (format == FORMAT_PEM)
{
pkey=PEM_read_bio_PrivateKey(key,NULL,NULL,NULL);
}
else
{
BIO_printf(bio_err,"bad input format specified for key\n");
goto end;
}
end:
if (key != NULL) BIO_free(key);
if (pkey == NULL)
BIO_printf(bio_err,"unable to load Private Key\n");
return(pkey);
}
static X509 *load_cert(char *file, int format)
{
ASN1_HEADER *ah=NULL;
BUF_MEM *buf=NULL;
X509 *x=NULL;
BIO *cert;
if ((cert=BIO_new(BIO_s_file())) == NULL)
{
ERR_print_errors(bio_err);
goto end;
}
if (file == NULL)
BIO_set_fp(cert,stdin,BIO_NOCLOSE);
else
{
if (BIO_read_filename(cert,file) <= 0)
{
perror(file);
goto end;
}
}
if (format == FORMAT_ASN1)
x=d2i_X509_bio(cert,NULL);
else if (format == FORMAT_NETSCAPE)
{
unsigned char *p,*op;
int size=0,i;
/* We sort of have to do it this way because it is sort of nice
* to read the header first and check it, then
* try to read the certificate */
buf=BUF_MEM_new();
for (;;)
{
if ((buf == NULL) || (!BUF_MEM_grow(buf,size+1024*10)))
goto end;
i=BIO_read(cert,&(buf->data[size]),1024*10);
size+=i;
if (i == 0) break;
if (i < 0)
{
perror("reading certificate");
goto end;
}
}
p=(unsigned char *)buf->data;
op=p;
/* First load the header */
if ((ah=d2i_ASN1_HEADER(NULL,&p,(long)size)) == NULL)
goto end;
if ((ah->header == NULL) || (ah->header->data == NULL) ||
(strncmp(CERT_HDR,(char *)ah->header->data,
ah->header->length) != 0))
{
BIO_printf(bio_err,"Error reading header on certificate\n");
goto end;
}
/* header is ok, so now read the object */
p=op;
ah->meth=X509_asn1_meth();
if ((ah=d2i_ASN1_HEADER(&ah,&p,(long)size)) == NULL)
goto end;
x=(X509 *)ah->data;
ah->data=NULL;
}
else if (format == FORMAT_PEM)
x=PEM_read_bio_X509(cert,NULL,NULL,NULL);
else {
BIO_printf(bio_err,"bad input format specified for input cert\n");
goto end;
}
end:
if (x == NULL)
{
BIO_printf(bio_err,"unable to load certificate\n");
ERR_print_errors(bio_err);
}
if (ah != NULL) ASN1_HEADER_free(ah);
if (cert != NULL) BIO_free(cert);
if (buf != NULL) BUF_MEM_free(buf);
return(x);
}
/* self sign */
static int sign(X509 *x, EVP_PKEY *pkey, int days, const EVP_MD *digest,
LHASH *conf, char *section)
{
EVP_PKEY *pktmp;
pktmp = X509_get_pubkey(x);
EVP_PKEY_copy_parameters(pktmp,pkey);
EVP_PKEY_save_parameters(pktmp,1);
EVP_PKEY_free(pktmp);
if (!X509_set_issuer_name(x,X509_get_subject_name(x))) goto err;
if (X509_gmtime_adj(X509_get_notBefore(x),0) == NULL) goto err;
/* Lets just make it 12:00am GMT, Jan 1 1970 */
/* memcpy(x->cert_info->validity->notBefore,"700101120000Z",13); */
/* 28 days to be certified */
if (X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days) == NULL)
goto err;
if (!X509_set_pubkey(x,pkey)) goto err;
if(conf) {
X509V3_CTX ctx;
X509_set_version(x,2); /* version 3 certificate */
X509V3_set_ctx(&ctx, x, x, NULL, NULL, 0);
X509V3_set_conf_lhash(&ctx, conf);
if(!X509V3_EXT_add_conf(conf, &ctx, section, x)) goto err;
}
if (!X509_sign(x,pkey,digest)) goto err;
return(1);
err:
ERR_print_errors(bio_err);
return(0);
}
static int efunc(X509_PURPOSE *pt, void *arg)
{
X509_PPRINT *ptmp;
int id, i, idret;
char *pname;
ptmp = arg;
id = X509_PURPOSE_get_id(pt);
pname = X509_PURPOSE_get_name(pt);
for(i = 0; i < 2; i++) {
idret = X509_check_purpose(ptmp->cert, id, i);
BIO_printf(ptmp->bio, "%s%s : ", pname, i ? " CA" : "");
if(idret == 1) BIO_printf(ptmp->bio, "Yes\n");
else if (idret == 0) BIO_printf(ptmp->bio, "No\n");
else BIO_printf(ptmp->bio, "Yes (WARNING code=%d)\n", idret);
}
return 1;
}
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